fmt

app/build.gradle.kts

@@ -107,7 +107,12 @@ android {
         targetCompatibility = JavaVersion.VERSION_17
     }
 
-    kotlin { compilerOptions { jvmTarget = JvmTarget.JVM_17 } }
+    kotlin {
+        compilerOptions {
+            jvmTarget = JvmTarget.JVM_17
+            freeCompilerArgs = listOf("-XXLanguage:+PropertyParamAnnotationDefaultTargetMode")
+        }
+    }
 
     buildFeatures {
         compose = true
@@ -213,6 +218,7 @@ dependencies {
     implementation(libs.ktor.client.content.negotiation)
     implementation(libs.ktor.serialization.kotlinx.json)
     implementation(libs.slf4j.android)
+    implementation(libs.icmp4a)
 
     // shizuku
     implementation(libs.shizuku.api)

app/schemas/com.zaneschepke.wireguardautotunnel.data.AppDatabase/19.json

@@ -0,0 +1,316 @@
+{
+  "formatVersion": 1,
+  "database": {
+    "version": 19,
+    "identityHash": "82bdb96b7a9f8695a34ad1ec21d9aea8",
+    "entities": [
+      {
+        "tableName": "Settings",
+        "createSql": "CREATE TABLE IF NOT EXISTS `${TABLE_NAME}` (`id` INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, `is_tunnel_enabled` INTEGER NOT NULL, `is_tunnel_on_mobile_data_enabled` INTEGER NOT NULL, `trusted_network_ssids` TEXT NOT NULL, `is_always_on_vpn_enabled` INTEGER NOT NULL, `is_tunnel_on_ethernet_enabled` INTEGER NOT NULL, `is_shortcuts_enabled` INTEGER NOT NULL DEFAULT false, `is_tunnel_on_wifi_enabled` INTEGER NOT NULL DEFAULT false, `is_kernel_enabled` INTEGER NOT NULL DEFAULT false, `is_restore_on_boot_enabled` INTEGER NOT NULL DEFAULT false, `is_multi_tunnel_enabled` INTEGER NOT NULL DEFAULT false, `is_ping_enabled` INTEGER NOT NULL DEFAULT false, `is_amnezia_enabled` INTEGER NOT NULL DEFAULT false, `is_wildcards_enabled` INTEGER NOT NULL DEFAULT false, `is_stop_on_no_internet_enabled` INTEGER NOT NULL DEFAULT false, `is_vpn_kill_switch_enabled` INTEGER NOT NULL DEFAULT false, `is_kernel_kill_switch_enabled` INTEGER NOT NULL DEFAULT false, `is_lan_on_kill_switch_enabled` INTEGER NOT NULL DEFAULT false, `debounce_delay_seconds` INTEGER NOT NULL DEFAULT 3, `is_disable_kill_switch_on_trusted_enabled` INTEGER NOT NULL DEFAULT false, `is_tunnel_on_unsecure_enabled` INTEGER NOT NULL DEFAULT false, `wifi_detection_method` INTEGER NOT NULL DEFAULT 0, `is_ping_monitoring_enabled` INTEGER NOT NULL DEFAULT true, `tunnel_ping_interval_sec` INTEGER NOT NULL DEFAULT 30, `tunnel_ping_attempts` INTEGER NOT NULL DEFAULT 3, `tunnel_ping_timeout_sec` INTEGER)",
+        "fields": [
+          {
+            "fieldPath": "id",
+            "columnName": "id",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "isAutoTunnelEnabled",
+            "columnName": "is_tunnel_enabled",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "isTunnelOnMobileDataEnabled",
+            "columnName": "is_tunnel_on_mobile_data_enabled",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "trustedNetworkSSIDs",
+            "columnName": "trusted_network_ssids",
+            "affinity": "TEXT",
+            "notNull": true
+          },
+          {
+            "fieldPath": "isAlwaysOnVpnEnabled",
+            "columnName": "is_always_on_vpn_enabled",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "isTunnelOnEthernetEnabled",
+            "columnName": "is_tunnel_on_ethernet_enabled",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "isShortcutsEnabled",
+            "columnName": "is_shortcuts_enabled",
+            "affinity": "INTEGER",
+            "notNull": true,
+            "defaultValue": "false"
+          },
+          {
+            "fieldPath": "isTunnelOnWifiEnabled",
+            "columnName": "is_tunnel_on_wifi_enabled",
+            "affinity": "INTEGER",
+            "notNull": true,
+            "defaultValue": "false"
+          },
+          {
+            "fieldPath": "isKernelEnabled",
+            "columnName": "is_kernel_enabled",
+            "affinity": "INTEGER",
+            "notNull": true,
+            "defaultValue": "false"
+          },
+          {
+            "fieldPath": "isRestoreOnBootEnabled",
+            "columnName": "is_restore_on_boot_enabled",
+            "affinity": "INTEGER",
+            "notNull": true,
+            "defaultValue": "false"
+          },
+          {
+            "fieldPath": "isMultiTunnelEnabled",
+            "columnName": "is_multi_tunnel_enabled",
+            "affinity": "INTEGER",
+            "notNull": true,
+            "defaultValue": "false"
+          },
+          {
+            "fieldPath": "isPingEnabled",
+            "columnName": "is_ping_enabled",
+            "affinity": "INTEGER",
+            "notNull": true,
+            "defaultValue": "false"
+          },
+          {
+            "fieldPath": "isAmneziaEnabled",
+            "columnName": "is_amnezia_enabled",
+            "affinity": "INTEGER",
+            "notNull": true,
+            "defaultValue": "false"
+          },
+          {
+            "fieldPath": "isWildcardsEnabled",
+            "columnName": "is_wildcards_enabled",
+            "affinity": "INTEGER",
+            "notNull": true,
+            "defaultValue": "false"
+          },
+          {
+            "fieldPath": "isStopOnNoInternetEnabled",
+            "columnName": "is_stop_on_no_internet_enabled",
+            "affinity": "INTEGER",
+            "notNull": true,
+            "defaultValue": "false"
+          },
+          {
+            "fieldPath": "isVpnKillSwitchEnabled",
+            "columnName": "is_vpn_kill_switch_enabled",
+            "affinity": "INTEGER",
+            "notNull": true,
+            "defaultValue": "false"
+          },
+          {
+            "fieldPath": "isKernelKillSwitchEnabled",
+            "columnName": "is_kernel_kill_switch_enabled",
+            "affinity": "INTEGER",
+            "notNull": true,
+            "defaultValue": "false"
+          },
+          {
+            "fieldPath": "isLanOnKillSwitchEnabled",
+            "columnName": "is_lan_on_kill_switch_enabled",
+            "affinity": "INTEGER",
+            "notNull": true,
+            "defaultValue": "false"
+          },
+          {
+            "fieldPath": "debounceDelaySeconds",
+            "columnName": "debounce_delay_seconds",
+            "affinity": "INTEGER",
+            "notNull": true,
+            "defaultValue": "3"
+          },
+          {
+            "fieldPath": "isDisableKillSwitchOnTrustedEnabled",
+            "columnName": "is_disable_kill_switch_on_trusted_enabled",
+            "affinity": "INTEGER",
+            "notNull": true,
+            "defaultValue": "false"
+          },
+          {
+            "fieldPath": "isTunnelOnUnsecureEnabled",
+            "columnName": "is_tunnel_on_unsecure_enabled",
+            "affinity": "INTEGER",
+            "notNull": true,
+            "defaultValue": "false"
+          },
+          {
+            "fieldPath": "wifiDetectionMethod",
+            "columnName": "wifi_detection_method",
+            "affinity": "INTEGER",
+            "notNull": true,
+            "defaultValue": "0"
+          },
+          {
+            "fieldPath": "isPingMonitoringEnabled",
+            "columnName": "is_ping_monitoring_enabled",
+            "affinity": "INTEGER",
+            "notNull": true,
+            "defaultValue": "true"
+          },
+          {
+            "fieldPath": "tunnelPingIntervalSeconds",
+            "columnName": "tunnel_ping_interval_sec",
+            "affinity": "INTEGER",
+            "notNull": true,
+            "defaultValue": "30"
+          },
+          {
+            "fieldPath": "tunnelPingAttempts",
+            "columnName": "tunnel_ping_attempts",
+            "affinity": "INTEGER",
+            "notNull": true,
+            "defaultValue": "3"
+          },
+          {
+            "fieldPath": "tunnelPingTimeoutSeconds",
+            "columnName": "tunnel_ping_timeout_sec",
+            "affinity": "INTEGER"
+          }
+        ],
+        "primaryKey": {
+          "autoGenerate": true,
+          "columnNames": [
+            "id"
+          ]
+        }
+      },
+      {
+        "tableName": "TunnelConfig",
+        "createSql": "CREATE TABLE IF NOT EXISTS `${TABLE_NAME}` (`id` INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, `name` TEXT NOT NULL, `wg_quick` TEXT NOT NULL, `tunnel_networks` TEXT NOT NULL DEFAULT '', `is_mobile_data_tunnel` INTEGER NOT NULL DEFAULT false, `is_primary_tunnel` INTEGER NOT NULL DEFAULT false, `am_quick` TEXT NOT NULL DEFAULT '', `is_Active` INTEGER NOT NULL DEFAULT false, `restart_on_ping_failure` INTEGER NOT NULL DEFAULT false, `ping_target` TEXT DEFAULT null, `is_ethernet_tunnel` INTEGER NOT NULL DEFAULT false, `is_ipv4_preferred` INTEGER NOT NULL DEFAULT true, `position` INTEGER NOT NULL DEFAULT 0, `auto_tunnel_apps` TEXT NOT NULL DEFAULT '[]')",
+        "fields": [
+          {
+            "fieldPath": "id",
+            "columnName": "id",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "name",
+            "columnName": "name",
+            "affinity": "TEXT",
+            "notNull": true
+          },
+          {
+            "fieldPath": "wgQuick",
+            "columnName": "wg_quick",
+            "affinity": "TEXT",
+            "notNull": true
+          },
+          {
+            "fieldPath": "tunnelNetworks",
+            "columnName": "tunnel_networks",
+            "affinity": "TEXT",
+            "notNull": true,
+            "defaultValue": "''"
+          },
+          {
+            "fieldPath": "isMobileDataTunnel",
+            "columnName": "is_mobile_data_tunnel",
+            "affinity": "INTEGER",
+            "notNull": true,
+            "defaultValue": "false"
+          },
+          {
+            "fieldPath": "isPrimaryTunnel",
+            "columnName": "is_primary_tunnel",
+            "affinity": "INTEGER",
+            "notNull": true,
+            "defaultValue": "false"
+          },
+          {
+            "fieldPath": "amQuick",
+            "columnName": "am_quick",
+            "affinity": "TEXT",
+            "notNull": true,
+            "defaultValue": "''"
+          },
+          {
+            "fieldPath": "isActive",
+            "columnName": "is_Active",
+            "affinity": "INTEGER",
+            "notNull": true,
+            "defaultValue": "false"
+          },
+          {
+            "fieldPath": "restartOnPingFailure",
+            "columnName": "restart_on_ping_failure",
+            "affinity": "INTEGER",
+            "notNull": true,
+            "defaultValue": "false"
+          },
+          {
+            "fieldPath": "pingTarget",
+            "columnName": "ping_target",
+            "affinity": "TEXT",
+            "defaultValue": "null"
+          },
+          {
+            "fieldPath": "isEthernetTunnel",
+            "columnName": "is_ethernet_tunnel",
+            "affinity": "INTEGER",
+            "notNull": true,
+            "defaultValue": "false"
+          },
+          {
+            "fieldPath": "isIpv4Preferred",
+            "columnName": "is_ipv4_preferred",
+            "affinity": "INTEGER",
+            "notNull": true,
+            "defaultValue": "true"
+          },
+          {
+            "fieldPath": "position",
+            "columnName": "position",
+            "affinity": "INTEGER",
+            "notNull": true,
+            "defaultValue": "0"
+          },
+          {
+            "fieldPath": "autoTunnelApps",
+            "columnName": "auto_tunnel_apps",
+            "affinity": "TEXT",
+            "notNull": true,
+            "defaultValue": "'[]'"
+          }
+        ],
+        "primaryKey": {
+          "autoGenerate": true,
+          "columnNames": [
+            "id"
+          ]
+        },
+        "indices": [
+          {
+            "name": "index_TunnelConfig_name",
+            "unique": true,
+            "columnNames": [
+              "name"
+            ],
+            "orders": [],
+            "createSql": "CREATE UNIQUE INDEX IF NOT EXISTS `index_TunnelConfig_name` ON `${TABLE_NAME}` (`name`)"
+          }
+        ]
+      }
+    ],
+    "setupQueries": [
+      "CREATE TABLE IF NOT EXISTS room_master_table (id INTEGER PRIMARY KEY,identity_hash TEXT)",
+      "INSERT OR REPLACE INTO room_master_table (id,identity_hash) VALUES(42, '82bdb96b7a9f8695a34ad1ec21d9aea8')"
+    ]
+  }
+}

app/src/main/java/com/zaneschepke/wireguardautotunnel/MainActivity.kt

@@ -62,6 +62,7 @@ import com.zaneschepke.wireguardautotunnel.ui.screens.settings.appearance.displa
 import com.zaneschepke.wireguardautotunnel.ui.screens.settings.appearance.language.LanguageScreen
 import com.zaneschepke.wireguardautotunnel.ui.screens.settings.killswitch.KillSwitchScreen
 import com.zaneschepke.wireguardautotunnel.ui.screens.settings.logs.LogsScreen
+import com.zaneschepke.wireguardautotunnel.ui.screens.settings.monitoring.TunnelMonitoringScreen
 import com.zaneschepke.wireguardautotunnel.ui.screens.support.SupportScreen
 import com.zaneschepke.wireguardautotunnel.ui.screens.support.license.LicenseScreen
 import com.zaneschepke.wireguardautotunnel.ui.theme.WireguardAutoTunnelTheme
@@ -289,7 +290,12 @@ class MainActivity : AppCompatActivity() {
                                         appUiState.tunnels
                                             .firstOrNull { it.id == args.id }
                                             ?.let { config ->
-                                                TunnelOptionsScreen(config, viewModel, appViewState)
+                                                TunnelOptionsScreen(
+                                                    config,
+                                                    viewModel,
+                                                    appViewState,
+                                                    appUiState.appSettings,
+                                                )
                                             }
                                     }
                                     composable<Route.Lock> { PinLockScreen(viewModel) }
@@ -310,6 +316,9 @@ class MainActivity : AppCompatActivity() {
                                             }
                                     }
                                     composable<Route.Sort> { SortScreen(appUiState, viewModel) }
+                                    composable<Route.TunnelMonitoring> {
+                                        TunnelMonitoringScreen(appUiState, viewModel)
+                                    }
                                 }
                             }
                         }

app/src/main/java/com/zaneschepke/wireguardautotunnel/WireGuardAutoTunnel.kt

@@ -7,6 +7,7 @@ import androidx.hilt.work.HiltWorkerFactory
 import androidx.work.Configuration
 import com.wireguard.android.backend.GoBackend
 import com.zaneschepke.logcatter.LogReader
+import com.zaneschepke.wireguardautotunnel.core.notification.NotificationMonitor
 import com.zaneschepke.wireguardautotunnel.core.tunnel.TunnelManager
 import com.zaneschepke.wireguardautotunnel.core.worker.ServiceWorker
 import com.zaneschepke.wireguardautotunnel.di.ApplicationScope
@@ -18,14 +19,10 @@ import com.zaneschepke.wireguardautotunnel.util.LocaleUtil
 import com.zaneschepke.wireguardautotunnel.util.ReleaseTree
 import dagger.hilt.android.HiltAndroidApp
 import javax.inject.Inject
-import kotlinx.coroutines.CoroutineDispatcher
-import kotlinx.coroutines.CoroutineScope
-import kotlinx.coroutines.cancel
+import kotlinx.coroutines.*
 import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.flow.StateFlow
 import kotlinx.coroutines.flow.update
-import kotlinx.coroutines.launch
-import kotlinx.coroutines.withContext
 import timber.log.Timber
 
 @HiltAndroidApp
@@ -46,6 +43,8 @@ class WireGuardAutoTunnel : Application(), Configuration.Provider {
 
     @Inject @MainDispatcher lateinit var mainDispatcher: CoroutineDispatcher
 
+    @Inject lateinit var notificationMonitor: NotificationMonitor
+
     @Inject lateinit var tunnelManager: TunnelManager
 
     override fun onCreate() {
@@ -80,6 +79,7 @@ class WireGuardAutoTunnel : Application(), Configuration.Provider {
         ServiceWorker.start(this)
 
         applicationScope.launch {
+            launch { notificationMonitor.handleApplicationNotifications() }
             appDataRepository.appState.getLocale()?.let {
                 withContext(mainDispatcher) { LocaleUtil.changeLocale(it) }
             }

app/src/main/java/com/zaneschepke/wireguardautotunnel/core/notification/NotificationManager.kt

@@ -49,7 +49,8 @@ interface NotificationManager {
         const val AUTO_TUNNEL_NOTIFICATION_ID = 122
         // for tunnel foreground notification
         const val VPN_NOTIFICATION_ID = 100
-        const val TUNNEL_STATUS_NOTIFICATION_ID = 101
+        const val TUNNEL_ERROR_NOTIFICATION_ID = 101
+        const val TUNNEL_MESSAGES_NOTIFICATION_ID = 102
         const val EXTRA_ID = "id"
     }
 }

app/src/main/java/com/zaneschepke/wireguardautotunnel/core/notification/NotificationMonitor.kt

@@ -0,0 +1,63 @@
+package com.zaneschepke.wireguardautotunnel.core.notification
+
+import com.zaneschepke.wireguardautotunnel.R
+import com.zaneschepke.wireguardautotunnel.WireGuardAutoTunnel
+import com.zaneschepke.wireguardautotunnel.core.tunnel.TunnelManager
+import com.zaneschepke.wireguardautotunnel.domain.events.BackendError
+import com.zaneschepke.wireguardautotunnel.util.StringValue
+import jakarta.inject.Inject
+import kotlinx.coroutines.coroutineScope
+import kotlinx.coroutines.flow.collectLatest
+import kotlinx.coroutines.launch
+
+class NotificationMonitor
+@Inject
+constructor(
+    private val tunnelManager: TunnelManager,
+    private val notificationManager: NotificationManager,
+) {
+    suspend fun handleApplicationNotifications() = coroutineScope {
+        launch { handleTunnelErrors() }
+        launch { handleTunnelMessages() }
+    }
+
+    private suspend fun handleTunnelErrors() =
+        tunnelManager.errorEvents.collectLatest { (tunnelConf, error) ->
+            if (!WireGuardAutoTunnel.uiActive.value) {
+                val notification =
+                    notificationManager.createNotification(
+                        WireGuardNotification.NotificationChannels.VPN,
+                        title = StringValue.DynamicString(tunnelConf.name),
+                        description =
+                            when (error) {
+                                is BackendError.BounceFailed -> error.toStringValue()
+                                else ->
+                                    StringValue.StringResource(
+                                        R.string.tunnel_error_template,
+                                        error.toStringRes(),
+                                    )
+                            },
+                    )
+                notificationManager.show(
+                    NotificationManager.TUNNEL_ERROR_NOTIFICATION_ID,
+                    notification,
+                )
+            }
+        }
+
+    private suspend fun handleTunnelMessages() =
+        tunnelManager.messageEvents.collectLatest { (tunnelConf, message) ->
+            if (!WireGuardAutoTunnel.uiActive.value) {
+                val notification =
+                    notificationManager.createNotification(
+                        WireGuardNotification.NotificationChannels.VPN,
+                        title = StringValue.DynamicString(tunnelConf.name),
+                        description = message.toStringValue(),
+                    )
+                notificationManager.show(
+                    NotificationManager.TUNNEL_MESSAGES_NOTIFICATION_ID,
+                    notification,
+                )
+            }
+        }
+}

app/src/main/java/com/zaneschepke/wireguardautotunnel/core/service/ServiceManager.kt

@@ -7,9 +7,6 @@ import android.content.ServiceConnection
 import android.net.VpnService
 import android.os.IBinder
 import com.zaneschepke.wireguardautotunnel.core.service.autotunnel.AutoTunnelService
-import com.zaneschepke.wireguardautotunnel.di.ApplicationScope
-import com.zaneschepke.wireguardautotunnel.di.IoDispatcher
-import com.zaneschepke.wireguardautotunnel.di.MainDispatcher
 import com.zaneschepke.wireguardautotunnel.domain.repository.AppDataRepository
 import com.zaneschepke.wireguardautotunnel.util.extensions.requestAutoTunnelTileServiceUpdate
 import com.zaneschepke.wireguardautotunnel.util.extensions.requestTunnelTileServiceStateUpdate
@@ -29,9 +26,9 @@ class ServiceManager
 @Inject
 constructor(
     private val context: Context,
-    @IoDispatcher private val ioDispatcher: CoroutineDispatcher,
-    @ApplicationScope private val applicationScope: CoroutineScope,
-    @MainDispatcher private val mainDispatcher: CoroutineDispatcher,
+    private val ioDispatcher: CoroutineDispatcher,
+    private val applicationScope: CoroutineScope,
+    private val mainDispatcher: CoroutineDispatcher,
     private val appDataRepository: AppDataRepository,
 ) {
 

app/src/main/java/com/zaneschepke/wireguardautotunnel/core/service/TunnelForegroundService.kt

@@ -7,26 +7,24 @@ import android.os.IBinder
 import androidx.core.app.ServiceCompat
 import androidx.lifecycle.LifecycleService
 import androidx.lifecycle.lifecycleScope
-import com.zaneschepke.networkmonitor.NetworkMonitor
 import com.zaneschepke.wireguardautotunnel.R
 import com.zaneschepke.wireguardautotunnel.core.notification.NotificationManager
 import com.zaneschepke.wireguardautotunnel.core.notification.WireGuardNotification
 import com.zaneschepke.wireguardautotunnel.core.tunnel.TunnelManager
+import com.zaneschepke.wireguardautotunnel.core.tunnel.TunnelMonitor
 import com.zaneschepke.wireguardautotunnel.di.IoDispatcher
 import com.zaneschepke.wireguardautotunnel.domain.enums.NotificationAction
-import com.zaneschepke.wireguardautotunnel.domain.enums.TunnelStatus
 import com.zaneschepke.wireguardautotunnel.domain.model.TunnelConf
-import com.zaneschepke.wireguardautotunnel.domain.repository.TunnelRepository
+import com.zaneschepke.wireguardautotunnel.domain.repository.AppDataRepository
 import com.zaneschepke.wireguardautotunnel.domain.state.TunnelState
 import com.zaneschepke.wireguardautotunnel.util.Constants
 import com.zaneschepke.wireguardautotunnel.util.extensions.distinctByKeys
 import dagger.hilt.android.AndroidEntryPoint
-import java.util.concurrent.ConcurrentHashMap
+import io.ktor.util.collections.*
 import javax.inject.Inject
-import kotlinx.coroutines.*
-import kotlinx.coroutines.flow.*
-import kotlinx.coroutines.sync.Mutex
-import kotlinx.coroutines.sync.withLock
+import kotlinx.coroutines.CoroutineDispatcher
+import kotlinx.coroutines.Job
+import kotlinx.coroutines.launch
 import timber.log.Timber
 
 @AndroidEntryPoint
@@ -36,23 +34,18 @@ class TunnelForegroundService : LifecycleService() {
 
     @Inject lateinit var serviceManager: ServiceManager
 
-    @Inject lateinit var networkMonitor: NetworkMonitor
+    @Inject lateinit var tunnelManager: TunnelManager
+
+    @Inject lateinit var tunnelMonitor: TunnelMonitor
 
     @Inject @IoDispatcher lateinit var ioDispatcher: CoroutineDispatcher
 
-    @Inject lateinit var tunnelRepo: TunnelRepository
-
-    @Inject lateinit var tunnelManager: TunnelManager
-
-    private val isNetworkConnected = MutableStateFlow(true)
-
-    private val tunnelJobs = ConcurrentHashMap<TunnelConf, Job>()
-    private val pingJobs = ConcurrentHashMap<TunnelConf, Job>()
-
-    private val jobsMutex = Mutex()
+    @Inject lateinit var appDataRepository: AppDataRepository
 
     class LocalBinder(val service: TunnelForegroundService) : Binder()
 
+    private val tunnelJobs = ConcurrentMap<TunnelConf, Job>()
+
     private val binder = LocalBinder(this)
 
     override fun onCreate() {
@@ -85,94 +78,23 @@ class TunnelForegroundService : LifecycleService() {
     fun start() =
         lifecycleScope.launch(ioDispatcher) {
             tunnelManager.activeTunnels.distinctByKeys().collect { activeTunnels ->
-                // No active tunnels and no jobs: nothing to do
-                if (activeTunnels.isEmpty() && tunnelJobs.isEmpty()) return@collect
-
-                // Synchronize jobs with active tunnels
-                synchronizeJobs(activeTunnels)
-                updateServiceNotification()
-            }
-        }
-
-    private suspend fun synchronizeJobs(activeTunnels: Map<TunnelConf, TunnelState>) {
-        jobsMutex.withLock {
-            // Stop jobs for tunnels that are no longer active
-            stopInactiveJobs(activeTunnels)
-            // Start jobs for new tunnels
-            startNewJobs(activeTunnels)
-        }
-    }
-
-    private fun stopInactiveJobs(activeTunnels: Map<TunnelConf, TunnelState>) {
-        // If no active tunnels, clear all jobs
-        if (activeTunnels.isEmpty()) {
-            clearAllJobs()
-            return
-        }
-        // Stop jobs for tunnels not in activeTunnels
-        val tunnelsToStop = tunnelJobs.keys - activeTunnels.keys
-        tunnelsToStop.forEach { tun -> stopTunnelJobs(tun) }
-    }
-
-    private fun clearAllJobs() {
-        tunnelJobs.forEach { (tun, job) ->
-            Timber.d("Stopping tunnel job for ${tun.tunName}")
-            job.cancel()
-        }
-        tunnelJobs.clear()
-
-        pingJobs.forEach { (tun, job) ->
-            if (isPingBounce(tun)) {
-                Timber.d("Preserving ping job for ${tun.tunName} due to PING bounce")
-                return@forEach
-            }
-            Timber.d("Stopping ping job for ${tun.tunName}")
-            job.cancel()
-        }
-        pingJobs.entries.removeIf { (tun, _) -> !isPingBounce(tun) }
-    }
-
-    private fun stopTunnelJobs(tun: TunnelConf) {
-        tunnelJobs.remove(tun)?.cancel()
-        Timber.d("Stopped tunnel job for ${tun.tunName}")
-        if (isPingBounce(tun))
-            return Timber.d("Preserving ${tun.tunName} ping job due to ping bounce")
-        pingJobs.remove(tun)?.cancel()
-        Timber.d("Stopped ping job for ${tun.tunName}")
-    }
-
-    private fun startNewJobs(activeTunnels: Map<TunnelConf, TunnelState>) {
-        val tunnelsToStart = activeTunnels.keys - tunnelJobs.keys
-        tunnelsToStart.forEach { tun ->
-            tunnelJobs[tun] = startTunnelJobs(tun)
-            Timber.d("Started tunnel job for ${tun.tunName}")
-
-            if (pingJobs[tun]?.isActive == true) {
-                Timber.d("Reusing active ping job for ${tun.tunName}")
-            } else {
-                pingJobs[tun]?.cancel() // Cancel any stale job
-                if (tun.isPingEnabled) {
-                    if (tun.isStaticallyConfigured()) {
-                        Timber.d("Skipping ping for statically configured tunnel")
-                    } else {
-                        pingJobs[tun] = startPingJob(tun)
-                        Timber.d("Started ping job for ${tun.tunName}")
-                    }
+                val activeTunConfigs = activeTunnels.keys
+                val obsoleteJobs = tunnelJobs.keys - activeTunConfigs
+                obsoleteJobs.forEach { tunnelConf -> tunnelJobs[tunnelConf]?.cancel() }
+                activeTunConfigs.forEach { tun ->
+                    if (tunnelJobs.containsKey(tun)) return@forEach
+                    tunnelJobs[tun] = launch { tunnelMonitor.startMonitoring(tun, true) }
                 }
+                updateServiceNotification(activeTunnels)
             }
         }
-    }
-
-    private fun isPingBounce(tun: TunnelConf): Boolean =
-        tunnelManager.bouncingTunnelIds[tun.id] == TunnelStatus.StopReason.PING
 
     // TODO Would be cool to have this include kill switch
-    // TODO also we need to include errors
-    private fun updateServiceNotification() {
+    private fun updateServiceNotification(activeTunnels: Map<TunnelConf, TunnelState>) {
         val notification =
-            when (tunnelJobs.size) {
+            when (activeTunnels.size) {
                 0 -> onCreateNotification()
-                1 -> createTunnelNotification(tunnelJobs.keys.first())
+                1 -> createTunnelNotification(activeTunnels.keys.first())
                 else -> createTunnelsNotification()
             }
         ServiceCompat.startForeground(
@@ -183,90 +105,18 @@ class TunnelForegroundService : LifecycleService() {
         )
     }
 
-    // use same scope so we can cancel all of these
-    private fun startTunnelJobs(tunnelConf: TunnelConf) =
-        lifecycleScope.launch(ioDispatcher) {
-            // monitor if we have internet connectivity
-            launch { startNetworkMonitorJob() }
-            // job to trigger stats emit on interval
-            launch { startTunnelStatsJob(tunnelConf) }
-            // monitor changes to the tunnel config
-            launch { startTunnelConfChangesJob(tunnelConf) }
-        }
-
-    private suspend fun startTunnelConfChangesJob(tunnelConf: TunnelConf) {
-        tunnelRepo.flow
-            .flowOn(ioDispatcher)
-            .map { storedTunnels -> storedTunnels.firstOrNull { it.id == tunnelConf.id } }
-            .filterNotNull()
-            // only emit when one of these 3 values change
-            .distinctUntilChanged { old, new -> old == new }
-            .collect { storedTunnel ->
-                if (tunnelConf != storedTunnel) {
-                    Timber.d("Config changed for ${storedTunnel.tunName}, bouncing")
-                    // let this complete, even after cancel
-                    withContext(NonCancellable) {
-                        tunnelManager.bounceTunnel(
-                            storedTunnel,
-                            TunnelStatus.StopReason.CONFIG_CHANGED,
-                        )
-                    }
-                }
-            }
-    }
-
-    private suspend fun startNetworkMonitorJob() {
-        networkMonitor.connectivityStateFlow.flowOn(ioDispatcher).collectLatest { status ->
-            isNetworkConnected.value = status.hasConnectivity()
-            Timber.d("Network available: $status")
-        }
-    }
-
-    private suspend fun startTunnelStatsJob(tunnel: TunnelConf) = coroutineScope {
-        while (isActive) {
-            tunnelManager.updateTunnelStatistics(tunnel)
-            delay(STATS_DELAY)
-        }
-    }
-
-    private fun startPingJob(tunnel: TunnelConf) =
-        lifecycleScope.launch(ioDispatcher) {
-            // delay for initial duration
-            delay(tunnel.pingInterval ?: Constants.PING_INTERVAL)
-            while (isActive) {
-                val shouldBounce = shouldBounceTunnel(tunnel)
-                val delayMs =
-                    if (shouldBounce) {
-                        // let this complete, even after cancel
-                        withContext(NonCancellable) {
-                            tunnelManager.bounceTunnel(tunnel, TunnelStatus.StopReason.PING)
-                        }
-                        tunnel.pingCooldown ?: Constants.PING_COOLDOWN
-                    } else {
-                        tunnel.pingInterval ?: Constants.PING_INTERVAL
-                    }
-                delay(delayMs)
-            }
-        }
-
-    private suspend fun shouldBounceTunnel(tunnel: TunnelConf): Boolean {
-        if (!isNetworkConnected.value) {
-            Timber.d("Network disconnected, skipping ping for ${tunnel.tunName}")
-            return false
-        }
-        return runCatching { !tunnel.isTunnelPingable(ioDispatcher) }
-            .onFailure { e -> Timber.e(e, "Ping check failed for ${tunnel.tunName}") }
-            .getOrDefault(true)
-    }
-
     fun stop() {
+        Timber.d("Stop called")
+        tunnelJobs.forEach { it.value.cancel() }
         ServiceCompat.stopForeground(this, ServiceCompat.STOP_FOREGROUND_REMOVE)
         stopSelf()
     }
 
     override fun onDestroy() {
+        tunnelJobs.forEach { it.value.cancel() }
         serviceManager.handleTunnelServiceDestroy()
         ServiceCompat.stopForeground(this, ServiceCompat.STOP_FOREGROUND_REMOVE)
+        Timber.d("onDestroy")
         super.onDestroy()
     }
 
@@ -301,14 +151,4 @@ class TunnelForegroundService : LifecycleService() {
             title = getString(R.string.tunnel_starting),
         )
     }
-
-    // TODO add notification handling and optional log reading for restart on handshake failures
-    companion object {
-        const val STATS_DELAY = 1_000L
-        // ipv6 disabled or block on network
-        // Failed to send handshake initiation: write udp [::]"
-        // Failed to send data packets: write udp [::]
-        // Failed to send data packets: write udp 0.0.0.0:51820
-        // Handshake did not complete after 5 seconds, retrying
-    }
 }

app/src/main/java/com/zaneschepke/wireguardautotunnel/core/service/autotunnel/AutoTunnelService.kt

@@ -7,17 +7,19 @@ import androidx.core.app.ServiceCompat
 import androidx.lifecycle.LifecycleService
 import androidx.lifecycle.lifecycleScope
 import com.zaneschepke.networkmonitor.AndroidNetworkMonitor
+import com.zaneschepke.networkmonitor.ConnectivityState
 import com.zaneschepke.networkmonitor.NetworkMonitor
 import com.zaneschepke.wireguardautotunnel.R
 import com.zaneschepke.wireguardautotunnel.core.notification.NotificationManager
 import com.zaneschepke.wireguardautotunnel.core.notification.WireGuardNotification
 import com.zaneschepke.wireguardautotunnel.core.service.ServiceManager
 import com.zaneschepke.wireguardautotunnel.core.tunnel.TunnelManager
+import com.zaneschepke.wireguardautotunnel.core.tunnel.TunnelMonitor
 import com.zaneschepke.wireguardautotunnel.di.IoDispatcher
 import com.zaneschepke.wireguardautotunnel.domain.enums.BackendState
 import com.zaneschepke.wireguardautotunnel.domain.enums.NotificationAction
+import com.zaneschepke.wireguardautotunnel.domain.enums.TunnelStatus.StopReason.Ping
 import com.zaneschepke.wireguardautotunnel.domain.events.AutoTunnelEvent
-import com.zaneschepke.wireguardautotunnel.domain.events.KillSwitchEvent
 import com.zaneschepke.wireguardautotunnel.domain.model.AppSettings
 import com.zaneschepke.wireguardautotunnel.domain.model.TunnelConf
 import com.zaneschepke.wireguardautotunnel.domain.repository.AppDataRepository
@@ -25,12 +27,15 @@ import com.zaneschepke.wireguardautotunnel.domain.state.AutoTunnelState
 import com.zaneschepke.wireguardautotunnel.domain.state.NetworkState
 import com.zaneschepke.wireguardautotunnel.util.Constants
 import com.zaneschepke.wireguardautotunnel.util.extensions.Tunnels
-import com.zaneschepke.wireguardautotunnel.util.extensions.zipWithPrevious
+import com.zaneschepke.wireguardautotunnel.util.extensions.toMillis
 import dagger.hilt.android.AndroidEntryPoint
 import javax.inject.Inject
 import javax.inject.Provider
+import kotlin.math.pow
 import kotlinx.coroutines.*
 import kotlinx.coroutines.flow.*
+import kotlinx.coroutines.sync.Mutex
+import kotlinx.coroutines.sync.withLock
 import timber.log.Timber
 
 @AndroidEntryPoint
@@ -48,11 +53,19 @@ class AutoTunnelService : LifecycleService() {
 
     @Inject lateinit var tunnelManager: TunnelManager
 
+    @Inject lateinit var tunnelMonitor: TunnelMonitor
+
     private val defaultState = AutoTunnelState()
 
+    private val autoTunMutex = Mutex()
+
     private val autoTunnelStateFlow = MutableStateFlow(defaultState)
 
-    private var killSwitchJob: Job? = null
+    private val bounceCounts = MutableStateFlow<Map<Int, Int>>(emptyMap())
+
+    private var eventHandlerJob: Job? = null
+
+    private val lastBounceTimes = mutableMapOf<Int, Long>()
 
     class LocalBinder(val service: AutoTunnelService) : Binder()
 
@@ -77,10 +90,8 @@ class AutoTunnelService : LifecycleService() {
 
     fun start() {
         launchWatcherNotification()
-        startAutoTunnelJob()
         startAutoTunnelStateJob()
-        killSwitchJob = startKillSwitchJob()
-        startNotificationJob()
+        startLocationPermissionsNotificationJob()
     }
 
     fun stop() {
@@ -90,6 +101,7 @@ class AutoTunnelService : LifecycleService() {
     override fun onDestroy() {
         serviceManager.handleAutoTunnelServiceDestroy()
         restoreVpnKillSwitch()
+        ServiceCompat.stopForeground(this, ServiceCompat.STOP_FOREGROUND_REMOVE)
         super.onDestroy()
     }
 
@@ -99,7 +111,7 @@ class AutoTunnelService : LifecycleService() {
                 settings.isVpnKillSwitchEnabled &&
                     tunnelManager.getBackendState() != BackendState.KILL_SWITCH_ACTIVE
             ) {
-                killSwitchJob?.cancel()
+                eventHandlerJob?.cancel()
                 val allowedIps =
                     if (settings.isLanOnKillSwitchEnabled) TunnelConf.LAN_BYPASS_ALLOWED_IPS
                     else emptyList()
@@ -131,47 +143,141 @@ class AutoTunnelService : LifecycleService() {
         )
     }
 
-    @OptIn(ExperimentalCoroutinesApi::class)
     private fun startAutoTunnelStateJob() =
         lifecycleScope.launch(ioDispatcher) {
-            combine(
-                    combineSettings(),
-                    appDataRepository
-                        .get()
-                        .settings
-                        .flow
-                        .distinctUntilChanged { old, new ->
-                            old.isKernelEnabled == new.isKernelEnabled
-                        } // Only emit when isKernelEnabled changes
-                        .flatMapLatest {
-                            networkMonitor.connectivityStateFlow
-                                .flowOn(ioDispatcher)
-                                .map(NetworkState::from)
-                        }
-                        .distinctUntilChanged(),
-                ) { double, networkState ->
-                    AutoTunnelState(
-                        tunnelManager.activeTunnels.value,
-                        networkState,
-                        double.first,
-                        double.second,
-                    )
-                }
-                .collect { state ->
+            val networkFlow =
+                debouncedConnectivityStateFlow
+                    .flowOn(ioDispatcher)
+                    .map(NetworkState::from)
+                    .map { StateChange.NetworkChange(it) }
+                    .distinctUntilChanged()
+
+            val settingsFlow =
+                combineSettings().map { StateChange.SettingsChange(it.first, it.second) }
+
+            val tunnelsFlow =
+                tunnelManager.activeTunnels.map { StateChange.ActiveTunnelsChange(it) }
+
+            val monitoringFlow =
+                tunnelManager.activeTunnels
+                    .map { map -> map.mapValues { (_, state) -> state.pingStates } }
+                    .distinctUntilChanged()
+                    .map { StateChange.MonitoringChange(it) }
+
+            var reevaluationJob: Job? = null
+
+            // get everything in sync before we use merge
+            combine(networkFlow, settingsFlow, tunnelsFlow, monitoringFlow) {
+                    network,
+                    settings,
+                    tunnels,
+                    monitoring ->
                     autoTunnelStateFlow.update {
                         it.copy(
-                            activeTunnels = state.activeTunnels,
-                            networkState = state.networkState,
-                            settings = state.settings,
-                            tunnels = state.tunnels,
+                            activeTunnels = tunnels.activeTunnels,
+                            networkState = network.networkState,
+                            settings = settings.settings,
+                            tunnels = settings.tunnels,
                         )
                     }
                 }
+                .first()
+
+            // use merge to limit the noise of a combine and also increase the scalability of auto
+            // tunnel handling new states
+            merge(networkFlow, settingsFlow, tunnelsFlow, monitoringFlow).collect { change ->
+                if (change !is StateChange.ActiveTunnelsChange) {
+                    Timber.d("New state changed to ${change.javaClass.simpleName}")
+                }
+
+                when (change) {
+                    is StateChange.NetworkChange -> {
+                        reevaluationJob?.cancel()
+                        val previousState = autoTunnelStateFlow.value
+                        autoTunnelStateFlow.update { it.copy(networkState = change.networkState) }
+                        // Android late mobile data state change, we can ignore handling this
+                        if (
+                            isAndroidLateCellularActiveChange(
+                                previousState.networkState,
+                                change.networkState,
+                            )
+                        ) {
+                            Timber.d("Android late cellular active state change")
+                            return@collect
+                        }
+                    }
+                    is StateChange.SettingsChange -> {
+                        reevaluationJob?.cancel()
+                        autoTunnelStateFlow.update {
+                            it.copy(settings = change.settings, tunnels = change.tunnels)
+                        }
+                    }
+                    is StateChange.ActiveTunnelsChange -> {
+                        autoTunnelStateFlow.update { it.copy(activeTunnels = change.activeTunnels) }
+                        return@collect
+                    }
+                    is StateChange.MonitoringChange -> {
+                        change.pingStates.forEach { (config, pingState) ->
+                            Timber.d("Ping state $pingState")
+                            if (pingState?.all { it.value.isReachable } == true) {
+                                Timber.d("Clearing bounce count on success")
+                                bounceCounts.update { current ->
+                                    current.toMutableMap().apply { remove(config.id) }
+                                }
+                            }
+                        }
+                        return@collect handleAutoTunnelEvent(
+                            autoTunnelStateFlow.value.determineAutoTunnelEvent(
+                                StateChange.MonitoringChange(change.pingStates)
+                            )
+                        )
+                    }
+                }
+
+                handleAutoTunnelEvent(autoTunnelStateFlow.value.determineAutoTunnelEvent(change))
+
+                reevaluationJob = launch {
+                    delay(REEVALUATE_CHECK_DELAY)
+                    val currentState = autoTunnelStateFlow.value
+                    if (currentState != defaultState) {
+                        Timber.d("Re-evaluating auto-tunnel state..")
+                        handleAutoTunnelEvent(currentState.determineAutoTunnelEvent(change))
+                    }
+                }
+            }
         }
 
+    private fun isAndroidLateCellularActiveChange(
+        previous: NetworkState,
+        new: NetworkState,
+    ): Boolean {
+        return (previous.isWifiConnected != new.isWifiConnected &&
+            previous.wifiName == new.wifiName &&
+            previous.isMobileDataConnected != new.isMobileDataConnected)
+    }
+
+    // all relevant settings to auto tunnel
+    private fun areAutoTunnelSettingsTheSame(old: AppSettings, new: AppSettings): Boolean {
+        return (old.isTunnelOnWifiEnabled == new.isTunnelOnWifiEnabled &&
+            old.isTunnelOnMobileDataEnabled == new.isTunnelOnMobileDataEnabled &&
+            old.isTunnelOnEthernetEnabled == new.isTunnelOnEthernetEnabled &&
+            old.trustedNetworkSSIDs == new.trustedNetworkSSIDs &&
+            old.isPingEnabled == new.isPingEnabled &&
+            old.debounceDelaySeconds == new.debounceDelaySeconds &&
+            old.wifiDetectionMethod == new.wifiDetectionMethod &&
+            old.isVpnKillSwitchEnabled == new.isVpnKillSwitchEnabled &&
+            old.isLanOnKillSwitchEnabled == new.isLanOnKillSwitchEnabled &&
+            old.isDisableKillSwitchOnTrustedEnabled == new.isDisableKillSwitchOnTrustedEnabled &&
+            old.isStopOnNoInternetEnabled == new.isStopOnNoInternetEnabled)
+    }
+
     private fun combineSettings(): Flow<Pair<AppSettings, Tunnels>> {
         return combine(
-                appDataRepository.get().settings.flow,
+                appDataRepository
+                    .get()
+                    .settings
+                    .flow
+                    .distinctUntilChanged(::areAutoTunnelSettingsTheSame),
                 appDataRepository.get().tunnels.flow.map { tunnels ->
                     // isActive is ignored for equality checks so user can manually toggle off
                     // tunnel with auto-tunnel
@@ -183,25 +289,53 @@ class AutoTunnelService : LifecycleService() {
             .distinctUntilChanged()
     }
 
-    // watch for changes to location permission and notify user it will impact auto-tunneling
-    // TODO can add deeplinks later back to the app for fixing
-    // TODO or a recheck button for location permission so we dont have to poll it
-    private fun startNotificationJob(): Job =
+    private fun areAutoTunnelPermissionsRequiredTheSame(
+        old: AutoTunnelState,
+        new: AutoTunnelState,
+    ): Boolean {
+        return (old.settings.wifiDetectionMethod == new.settings.wifiDetectionMethod &&
+            old.networkState.locationPermissionGranted ==
+                new.networkState.locationPermissionGranted &&
+            old.networkState.locationServicesEnabled == new.networkState.locationServicesEnabled &&
+            old.tunnels == new.tunnels &&
+            old.settings.trustedNetworkSSIDs == new.settings.trustedNetworkSSIDs)
+    }
+
+    //     watch for changes to location permission and notify user it will impact auto-tunneling
+    //     TODO or a recheck button for location permission so we dont have to poll it
+    private fun startLocationPermissionsNotificationJob(): Job =
         lifecycleScope.launch(ioDispatcher) {
             var locationServicesShown = false
             var locationPermissionsShown = false
-            autoTunnelStateFlow.zipWithPrevious().collect { (previous, current) ->
-                when (current.settings.wifiDetectionMethod) {
-                    AndroidNetworkMonitor.WifiDetectionMethod.DEFAULT,
-                    AndroidNetworkMonitor.WifiDetectionMethod.LEGACY -> {
-                        with(current.networkState) {
+
+            data class NetworkPermissionState(
+                val detectionMethod: AndroidNetworkMonitor.WifiDetectionMethod,
+                val locationServicesEnabled: Boolean,
+                val locationPermissionsEnabled: Boolean,
+                val ssidReadRequired: Boolean,
+            )
+
+            autoTunnelStateFlow
+                .distinctUntilChanged(::areAutoTunnelPermissionsRequiredTheSame)
+                .map {
+                    NetworkPermissionState(
+                        it.settings.wifiDetectionMethod,
+                        it.networkState.locationServicesEnabled == true,
+                        it.networkState.locationPermissionGranted == true,
+                        (it.tunnels.any { tunnel -> tunnel.tunnelNetworks.isNotEmpty() } ||
+                            it.settings.trustedNetworkSSIDs.isNotEmpty()),
+                    )
+                }
+                .collect { state ->
+                    when (state.detectionMethod) {
+                        AndroidNetworkMonitor.WifiDetectionMethod.DEFAULT,
+                        AndroidNetworkMonitor.WifiDetectionMethod.LEGACY -> {
                             if (
-                                locationPermissionGranted == false &&
-                                    (previous?.networkState?.locationPermissionGranted == true ||
-                                        !locationServicesShown)
+                                !state.locationPermissionsEnabled &&
+                                    !locationPermissionsShown &&
+                                    state.ssidReadRequired
                             ) {
-                                locationServicesShown = true
-                                Timber.i("Detected location permission lost")
+                                locationPermissionsShown = true
                                 val notification =
                                     notificationManager.createNotification(
                                         WireGuardNotification.NotificationChannels.AUTO_TUNNEL,
@@ -215,12 +349,11 @@ class AutoTunnelService : LifecycleService() {
                                 )
                             }
                             if (
-                                locationServicesEnabled == false &&
-                                    (previous?.networkState?.locationServicesEnabled == true ||
-                                        !locationPermissionsShown)
+                                !state.locationServicesEnabled &&
+                                    !locationServicesShown &&
+                                    state.ssidReadRequired
                             ) {
-                                locationPermissionsShown = true
-                                Timber.i("Detected location services lost")
+                                locationServicesShown = true
                                 val notification =
                                     notificationManager.createNotification(
                                         WireGuardNotification.NotificationChannels.AUTO_TUNNEL,
@@ -233,93 +366,97 @@ class AutoTunnelService : LifecycleService() {
                                     notification,
                                 )
                             }
-                            if (
-                                locationServicesEnabled == true &&
-                                    previous?.networkState?.locationServicesEnabled == false
-                            ) {
+                            if (state.locationServicesEnabled || !state.ssidReadRequired) {
                                 notificationManager.remove(
                                     NotificationManager.AUTO_TUNNEL_LOCATION_SERVICES_ID
                                 )
+                                locationServicesShown = false
                             }
-                            if (
-                                locationPermissionGranted == true &&
-                                    previous?.networkState?.locationPermissionGranted == false
-                            ) {
+                            if (state.locationPermissionsEnabled || !state.ssidReadRequired) {
                                 notificationManager.remove(
                                     NotificationManager.AUTO_TUNNEL_LOCATION_PERMISSION_ID
                                 )
+                                locationPermissionsShown = false
                             }
                         }
+                        else -> Unit
                     }
-                    else -> Unit
+                }
+        }
+
+    private suspend fun handleAutoTunnelEvent(autoTunnelEvent: AutoTunnelEvent) {
+        autoTunMutex.withLock {
+            when (
+                val event =
+                    autoTunnelEvent.also {
+                        Timber.i("Auto tunnel event: ${it.javaClass.simpleName}")
+                    }
+            ) {
+                is AutoTunnelEvent.Start ->
+                    (event.tunnelConf ?: appDataRepository.get().getPrimaryOrFirstTunnel())?.let {
+                        tunnelManager.startTunnel(it)
+                    }
+                is AutoTunnelEvent.Stop -> tunnelManager.stopTunnel()
+                AutoTunnelEvent.DoNothing -> Timber.i("Auto-tunneling: nothing to do")
+                is AutoTunnelEvent.Bounce ->
+                    handleBounceWithBackoff(event.configsPeerKeyResolvedMap)
+                is AutoTunnelEvent.StartKillSwitch -> {
+                    Timber.d("Starting kill switch")
+                    tunnelManager.setBackendState(BackendState.KILL_SWITCH_ACTIVE, event.allowedIps)
+                }
+                AutoTunnelEvent.StopKillSwitch -> {
+                    Timber.d("Stopping kill switch")
+                    tunnelManager.setBackendState(BackendState.SERVICE_ACTIVE, emptySet())
                 }
             }
         }
+    }
 
-    private fun startKillSwitchJob() =
-        lifecycleScope.launch(ioDispatcher) {
-            autoTunnelStateFlow.collect {
-                if (it == defaultState) return@collect
-                when (val event = it.asKillSwitchEvent()) {
-                    KillSwitchEvent.DoNothing -> Unit
-                    is KillSwitchEvent.Start -> {
-                        Timber.d("Starting kill switch")
-                        tunnelManager.setBackendState(
-                            BackendState.KILL_SWITCH_ACTIVE,
-                            event.allowedIps,
-                        )
-                    }
-                    KillSwitchEvent.Stop -> {
-                        Timber.d("Stopping kill switch")
-                        tunnelManager.setBackendState(BackendState.SERVICE_ACTIVE, emptySet())
-                    }
+    private suspend fun handleBounceWithBackoff(
+        configsPeerKeyResolvedMap: List<Pair<TunnelConf, Map<String, String?>>>
+    ) { // Simplified param: no failureCount
+        val settings = appDataRepository.get().settings.get()
+        val pingIntervalMillis = settings.tunnelPingIntervalSeconds.toMillis()
+        configsPeerKeyResolvedMap.forEach { (config, peerMap) ->
+            val bounceCount = bounceCounts.value.getOrDefault(config.id, 0)
+            val exponent = bounceCount.toDouble()
+            val backoffDelay =
+                (pingIntervalMillis * 2.0.pow(exponent)).toLong().coerceAtMost(MAX_BACKOFF_MS)
+            val currentTime = System.currentTimeMillis()
+            val lastTime = lastBounceTimes.getOrDefault(config.id, 0L)
+            if (currentTime - lastTime >= backoffDelay) {
+                Timber.d(
+                    "Bouncing tunnel ${config.name} after detecting failure, with bounce count $bounceCount and calculated backoff delay $backoffDelay ms"
+                )
+                tunnelManager.bounceTunnel(config, Ping(peerMap))
+                lastBounceTimes[config.id] = currentTime
+                bounceCounts.update { current ->
+                    current.toMutableMap().apply { this[config.id] = (this[config.id] ?: 0) + 1 }
                 }
+            } else {
+                Timber.d(
+                    "Backoff in progress for tunnel ${config.name}, skipping bounce (required delay: $backoffDelay ms)"
+                )
             }
         }
+    }
 
-    @OptIn(FlowPreview::class)
-    private fun startAutoTunnelJob() =
-        lifecycleScope.launch(ioDispatcher) {
-            Timber.i("Starting auto-tunnel network event watcher")
-            val settings = appDataRepository.get().settings.get()
-
-            var reevaluationJob: Job? = null
-
-            autoTunnelStateFlow.debounce(settings.debounceDelayMillis()).collect { watcherState ->
-                if (watcherState == defaultState) return@collect
-                reevaluationJob?.cancel()
-                handleAutoTunnelEvent(watcherState)
-
-                // schedule one-time re-evaluation
-                reevaluationJob = launch {
-                    delay(REEVALUATE_CHECK_DELAY)
-                    if (watcherState != defaultState) {
-                        Timber.d("Re-evaluating auto-tunnel state..")
-                        handleAutoTunnelEvent(watcherState)
-                    }
-                }
+    @OptIn(FlowPreview::class, ExperimentalCoroutinesApi::class)
+    private val debouncedConnectivityStateFlow: Flow<ConnectivityState> by lazy {
+        appDataRepository
+            .get()
+            .settings
+            .flow
+            .map { it.debounceDelaySeconds.toMillis() }
+            .distinctUntilChanged()
+            .flatMapLatest { debounceMillis ->
+                networkMonitor.connectivityStateFlow.debounce(debounceMillis)
             }
-        }
-
-    private suspend fun handleAutoTunnelEvent(watcherState: AutoTunnelState) {
-        Timber.i("Auto-tunnel settings: ${watcherState.settings.toAutoTunnelStateString()}")
-        Timber.i("Auto-tunnel network state: ${watcherState.networkState}")
-        when (
-            val event =
-                watcherState.asAutoTunnelEvent().also {
-                    Timber.i("Auto-tunnel event: ${it.javaClass.simpleName}")
-                }
-        ) {
-            is AutoTunnelEvent.Start ->
-                (event.tunnelConf ?: appDataRepository.get().getPrimaryOrFirstTunnel())?.let {
-                    tunnelManager.startTunnel(it)
-                }
-            is AutoTunnelEvent.Stop -> tunnelManager.stopTunnel()
-            AutoTunnelEvent.DoNothing -> Timber.i("Auto-tunneling: nothing to do")
-        }
     }
 
     companion object {
-        const val REEVALUATE_CHECK_DELAY = 5_000L
+        // try to keep this window short as it will interrupt manual overrides
+        const val REEVALUATE_CHECK_DELAY = 2_000L
+        const val MAX_BACKOFF_MS = 300_000L // 5 minutes
     }
 }

app/src/main/java/com/zaneschepke/wireguardautotunnel/core/service/autotunnel/StateChange.kt

@@ -0,0 +1,20 @@
+package com.zaneschepke.wireguardautotunnel.core.service.autotunnel
+
+import com.zaneschepke.wireguardautotunnel.domain.model.AppSettings
+import com.zaneschepke.wireguardautotunnel.domain.model.TunnelConf
+import com.zaneschepke.wireguardautotunnel.domain.state.NetworkState
+import com.zaneschepke.wireguardautotunnel.domain.state.PingState
+import com.zaneschepke.wireguardautotunnel.domain.state.TunnelState
+import com.zaneschepke.wireguardautotunnel.util.extensions.Tunnels
+import org.amnezia.awg.crypto.Key
+
+sealed class StateChange {
+    data class NetworkChange(val networkState: NetworkState) : StateChange()
+
+    data class SettingsChange(val settings: AppSettings, val tunnels: Tunnels) : StateChange()
+
+    data class ActiveTunnelsChange(val activeTunnels: Map<TunnelConf, TunnelState>) : StateChange()
+
+    data class MonitoringChange(val pingStates: Map<TunnelConf, Map<Key, PingState>?>) :
+        StateChange()
+}

app/src/main/java/com/zaneschepke/wireguardautotunnel/core/tunnel/BaseTunnel.kt

@@ -2,37 +2,42 @@ package com.zaneschepke.wireguardautotunnel.core.tunnel
 
 import com.wireguard.android.backend.Tunnel
 import com.zaneschepke.wireguardautotunnel.core.service.ServiceManager
-import com.zaneschepke.wireguardautotunnel.di.ApplicationScope
-import com.zaneschepke.wireguardautotunnel.domain.enums.BackendError
 import com.zaneschepke.wireguardautotunnel.domain.enums.TunnelStatus
+import com.zaneschepke.wireguardautotunnel.domain.events.BackendError
+import com.zaneschepke.wireguardautotunnel.domain.events.BackendMessage
 import com.zaneschepke.wireguardautotunnel.domain.model.TunnelConf
 import com.zaneschepke.wireguardautotunnel.domain.repository.AppDataRepository
+import com.zaneschepke.wireguardautotunnel.domain.state.PingState
 import com.zaneschepke.wireguardautotunnel.domain.state.TunnelState
 import com.zaneschepke.wireguardautotunnel.domain.state.TunnelStatistics
+import com.zaneschepke.wireguardautotunnel.ui.state.ConfigProxy
 import com.zaneschepke.wireguardautotunnel.util.extensions.asTunnelState
 import java.util.concurrent.ConcurrentHashMap
-import kotlin.concurrent.thread
+import kotlin.coroutines.cancellation.CancellationException
 import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Job
 import kotlinx.coroutines.delay
 import kotlinx.coroutines.flow.*
 import kotlinx.coroutines.launch
-import kotlinx.coroutines.runBlocking
 import kotlinx.coroutines.sync.Mutex
 import kotlinx.coroutines.sync.withLock
+import org.amnezia.awg.crypto.Key
 import timber.log.Timber
 
 abstract class BaseTunnel(
-    @ApplicationScope private val applicationScope: CoroutineScope,
+    private val applicationScope: CoroutineScope,
     private val appDataRepository: AppDataRepository,
     private val serviceManager: ServiceManager,
 ) : TunnelProvider {
 
-    private val _errorEvents =
-        MutableSharedFlow<Pair<TunnelConf, BackendError>>(replay = 0, extraBufferCapacity = 1)
+    private val _errorEvents = MutableSharedFlow<Pair<TunnelConf, BackendError>>()
     override val errorEvents = _errorEvents.asSharedFlow()
 
+    private val _messageEvents = MutableSharedFlow<Pair<TunnelConf, BackendMessage>>()
+    override val messageEvents = _messageEvents.asSharedFlow()
+
     private val activeTuns = MutableStateFlow<Map<TunnelConf, TunnelState>>(emptyMap())
-    private val tunThreads = ConcurrentHashMap<Int, Thread>()
+    private val tunJobs = ConcurrentHashMap<Int, Job>()
     override val activeTunnels = activeTuns.asStateFlow()
 
     private val tunMutex = Mutex()
@@ -49,32 +54,43 @@ abstract class BaseTunnel(
         return serviceManager.hasVpnPermission()
     }
 
-    protected suspend fun updateTunnelStatus(
+    override suspend fun updateTunnelStatus(
         tunnelConf: TunnelConf,
-        status: TunnelStatus? = null,
-        stats: TunnelStatistics? = null,
+        status: TunnelStatus?,
+        stats: TunnelStatistics?,
+        pingStates: Map<Key, PingState>?,
+        handshakeSuccessLogs: Boolean?,
     ) {
         tunStatusMutex.withLock {
             activeTuns.update { currentTuns ->
                 val originalConf = currentTuns.getKeyById(tunnelConf.id) ?: tunnelConf
                 val existingState = currentTuns.getValueById(tunnelConf.id) ?: TunnelState()
-                val newState = status ?: existingState.status
-                if (newState == TunnelStatus.Down) {
+                val newStatus = status ?: existingState.status
+                if (newStatus == TunnelStatus.Down) {
                     Timber.d("Removing tunnel ${tunnelConf.id} from activeTunnels as state is DOWN")
-                    cleanUpTunThread(tunnelConf)
+                    cleanUpTunJob(tunnelConf)
                     currentTuns - originalConf
-                } else if (existingState.status == newState && stats == null) {
-                    Timber.d("Skipping redundant state update for ${tunnelConf.id}: $newState")
+                } else if (
+                    existingState.status == newStatus &&
+                        stats == null &&
+                        pingStates == null &&
+                        handshakeSuccessLogs == null
+                ) {
+                    Timber.d("Skipping redundant state update for ${tunnelConf.id}: $newStatus")
                     currentTuns
                 } else {
                     val updated =
                         existingState.copy(
-                            status = newState,
+                            status = newStatus,
                             statistics = stats ?: existingState.statistics,
+                            pingStates = pingStates ?: existingState.pingStates,
+                            handshakeSuccessLogs =
+                                handshakeSuccessLogs ?: existingState.handshakeSuccessLogs,
                         )
                     currentTuns + (originalConf to updated)
                 }
             }
+            handleServiceStateOnChange()
         }
     }
 
@@ -104,44 +120,100 @@ abstract class BaseTunnel(
         }
     }
 
-    override suspend fun updateTunnelStatistics(tunnel: TunnelConf) {
-        val stats = getStatistics(tunnel)
-        updateTunnelStatus(tunnel, null, stats)
-    }
-
     override suspend fun startTunnel(tunnelConf: TunnelConf) {
-        if (activeTuns.exists(tunnelConf.id) || tunThreads.containsKey(tunnelConf.id)) return
+        if (activeTuns.exists(tunnelConf.id) || tunJobs.containsKey(tunnelConf.id))
+            return Timber.w("Tunnel is already running ${tunnelConf.name}")
+        // For userspace, we need to make sure all previous tunnels are down
         if (this@BaseTunnel is UserspaceTunnel) stopActiveTunnels()
         tunMutex.withLock {
-            tunThreads[tunnelConf.id] = thread {
-                try {
-                    runBlocking {
+            val job =
+                applicationScope.launch {
+                    try {
                         Timber.d("Starting tunnel ${tunnelConf.id}...")
                         startTunnelInner(tunnelConf)
                         Timber.d("Started complete for tunnel ${tunnelConf.name}...")
+                        // catch cancellation that could occur before and during startTunnelInner
+                        // and trigger at that suspend point
+                    } catch (e: CancellationException) {
+                        Timber.w(
+                            "Tunnel start has been cancelled as ${tunnelConf.name} failed to start"
+                        )
                     }
-                } catch (e: InterruptedException) {
-                    Timber.w(
-                        "Tunnel start has been interrupted as ${tunnelConf.name} failed to start"
-                    )
                 }
+            tunJobs[tunnelConf.id] = job
+            job.invokeOnCompletion {
+                tunJobs.remove(tunnelConf.id)
+                Timber.d("Start job completed for tunnel ${tunnelConf.id}")
             }
         }
     }
 
     private suspend fun startTunnelInner(tunnelConf: TunnelConf) {
         configureTunnelCallbacks(tunnelConf)
-        Timber.d("Starting  backend for tunnel ${tunnelConf.id}...")
-        try {
-            startBackend(tunnelConf)
-            updateTunnelStatus(tunnelConf, TunnelStatus.Up)
-            Timber.d("Started for tun ${tunnelConf.id}...")
-            saveTunnelActiveState(tunnelConf, true)
-            serviceManager.startTunnelForegroundService()
-        } catch (e: BackendError) {
-            Timber.e(e, "Failed to start backend for ${tunnelConf.name}")
-            _errorEvents.emit(tunnelConf to e)
-            updateTunnelStatus(tunnelConf, TunnelStatus.Down)
+        Timber.d("Starting backend for tunnel ${tunnelConf.id}...")
+
+        var currentConf = tunnelConf
+        var restoreAttempted = false
+        var originalError: BackendError? = null
+
+        while (true) {
+            try {
+                startBackend(currentConf)
+                updateTunnelStatus(currentConf, TunnelStatus.Up)
+                Timber.d("Started for tun ${currentConf.id}...")
+                saveTunnelActiveState(currentConf, true)
+                serviceManager.startTunnelForegroundService()
+                if (restoreAttempted)
+                    _messageEvents.emit(tunnelConf to BackendMessage.BounceRecovery)
+                if (bouncingTunnelIds[currentConf.id] is TunnelStatus.StopReason.Ping) {
+                    _messageEvents.emit(tunnelConf to BackendMessage.BounceSuccess)
+                }
+                return // Success, return
+            } catch (e: BackendError) {
+                originalError = originalError ?: e
+                val bounceReason = bouncingTunnelIds[currentConf.id]
+                if (!restoreAttempted && bounceReason is TunnelStatus.StopReason.Ping) {
+                    Timber.i(
+                        "Attempting to recover bounce failure with previously resolved endpoints for ${currentConf.name}"
+                    )
+                    try {
+                        val previouslyResolved = bounceReason.previouslyResolvedEndpoints
+                        val configProxy = ConfigProxy.from(currentConf.toAmConfig())
+                        val updatedConfigProxy =
+                            configProxy.copy(
+                                peers =
+                                    configProxy.peers.map {
+                                        it.copy(
+                                            endpoint =
+                                                previouslyResolved[it.publicKey] ?: it.endpoint
+                                        )
+                                    }
+                            )
+                        val (wg, amnezia) = updatedConfigProxy.buildConfigs()
+                        currentConf =
+                            currentConf.copyWithCallback(
+                                amQuick = amnezia.toAwgQuickString(true),
+                                wgQuick = wg.toWgQuickString(true),
+                            )
+                        bouncingTunnelIds.remove(currentConf.id)
+                        restoreAttempted = true
+                        continue // Retry
+                    } catch (e: Exception) {
+                        Timber.e(
+                            e,
+                            "Failed to update config with resolved endpoints for ${currentConf.name}",
+                        )
+                        // Fall through to failure (will emit BounceFailed since
+                        // retryAttempted=true)
+                    }
+                }
+                Timber.e(e, "Failed to start backend for ${currentConf.name}")
+                val emitError =
+                    if (restoreAttempted) BackendError.BounceFailed(originalError) else e
+                _errorEvents.emit(currentConf to emitError)
+                updateTunnelStatus(currentConf, TunnelStatus.Down)
+                return
+            }
         }
     }
 
@@ -174,30 +246,23 @@ abstract class BaseTunnel(
     }
 
     private fun handleServiceStateOnChange() {
-        if (activeTuns.value.isEmpty() && bouncingTunnelIds.isEmpty())
-            serviceManager.stopTunnelForegroundService()
+        if (activeTuns.value.isEmpty()) serviceManager.stopTunnelForegroundService()
     }
 
     private suspend fun handleStuckStartingTunnelShutdown(tunnel: TunnelConf) {
-        Timber.d("Stuck in starting state so shutting down tunnel thread for tunnel ${tunnel.name}")
+        Timber.d("Stuck in starting state so cancelling job for tunnel ${tunnel.name}")
         try {
-            tunThreads[tunnel.id]?.let {
-                if (it.state != Thread.State.TERMINATED) {
-                    it.interrupt()
-                } else {
-                    Timber.d("Thread already terminated")
-                }
-            }
+            tunJobs[tunnel.id]?.cancel() ?: Timber.d("No job found for ${tunnel.name}")
         } catch (e: Exception) {
-            Timber.e(e, "Failed to stop tunnel thread for ${tunnel.name}")
+            Timber.e(e, "Failed to cancel job for ${tunnel.name}")
         } finally {
             updateTunnelStatus(tunnel, TunnelStatus.Down)
         }
     }
 
-    private fun cleanUpTunThread(tunnel: TunnelConf) {
-        Timber.d("Removing thread for ${tunnel.name}")
-        tunThreads -= tunnel.id
+    private fun cleanUpTunJob(tunnel: TunnelConf) {
+        Timber.d("Removing job for ${tunnel.name}")
+        tunJobs -= tunnel.id
     }
 
     private fun removeActiveTunnel(tunnelConf: TunnelConf) {
@@ -210,16 +275,10 @@ abstract class BaseTunnel(
                 "Bounce tunnel ${tunnelConf.name} for reason: $reason, current bouncing: ${bouncingTunnelIds.size}"
             )
             bouncingTunnelIds[tunnelConf.id] = reason
-            try {
+            runCatching {
                 stopTunnel(tunnelConf, reason)
                 delay(BOUNCE_DELAY)
                 startTunnel(tunnelConf)
-            } finally {
-                bouncingTunnelIds.remove(tunnelConf.id)
-                handleServiceStateOnChange()
-                Timber.d(
-                    "Cleared bounce state for ${tunnelConf.name}, remaining: ${bouncingTunnelIds.size}"
-                )
             }
         }
     }

app/src/main/java/com/zaneschepke/wireguardautotunnel/core/tunnel/KernelTunnel.kt

@@ -5,9 +5,9 @@ import com.wireguard.android.backend.BackendException
 import com.wireguard.android.backend.Tunnel
 import com.zaneschepke.wireguardautotunnel.core.service.ServiceManager
 import com.zaneschepke.wireguardautotunnel.di.ApplicationScope
-import com.zaneschepke.wireguardautotunnel.domain.enums.BackendError
 import com.zaneschepke.wireguardautotunnel.domain.enums.BackendState
 import com.zaneschepke.wireguardautotunnel.domain.enums.TunnelStatus
+import com.zaneschepke.wireguardautotunnel.domain.events.BackendError
 import com.zaneschepke.wireguardautotunnel.domain.model.TunnelConf
 import com.zaneschepke.wireguardautotunnel.domain.repository.AppDataRepository
 import com.zaneschepke.wireguardautotunnel.domain.state.TunnelStatistics
@@ -42,7 +42,11 @@ constructor(
             updateTunnelStatus(tunnel, TunnelStatus.Starting)
             backend.setState(tunnel, Tunnel.State.UP, tunnel.toWgConfig())
         } catch (e: BackendException) {
+            Timber.e(e, "Failed to start up backend for tunnel ${tunnel.name}")
             throw e.toBackendError()
+        } catch (e: IllegalArgumentException) {
+            Timber.e(e, "Failed to start up backend for tunnel ${tunnel.name}")
+            throw BackendError.Config
         }
     }
 

app/src/main/java/com/zaneschepke/wireguardautotunnel/core/tunnel/TunnelManager.kt

@@ -1,35 +1,32 @@
 package com.zaneschepke.wireguardautotunnel.core.tunnel
 
-import com.zaneschepke.wireguardautotunnel.R
-import com.zaneschepke.wireguardautotunnel.WireGuardAutoTunnel
-import com.zaneschepke.wireguardautotunnel.core.notification.NotificationManager
-import com.zaneschepke.wireguardautotunnel.core.notification.WireGuardNotification
-import com.zaneschepke.wireguardautotunnel.di.ApplicationScope
-import com.zaneschepke.wireguardautotunnel.di.IoDispatcher
-import com.zaneschepke.wireguardautotunnel.di.Kernel
-import com.zaneschepke.wireguardautotunnel.di.Userspace
-import com.zaneschepke.wireguardautotunnel.domain.enums.BackendError
 import com.zaneschepke.wireguardautotunnel.domain.enums.BackendState
 import com.zaneschepke.wireguardautotunnel.domain.enums.TunnelStatus
+import com.zaneschepke.wireguardautotunnel.domain.events.BackendError
+import com.zaneschepke.wireguardautotunnel.domain.events.BackendMessage
 import com.zaneschepke.wireguardautotunnel.domain.model.TunnelConf
 import com.zaneschepke.wireguardautotunnel.domain.repository.AppDataRepository
+import com.zaneschepke.wireguardautotunnel.domain.state.PingState
+import com.zaneschepke.wireguardautotunnel.domain.state.TunnelState
 import com.zaneschepke.wireguardautotunnel.domain.state.TunnelStatistics
-import com.zaneschepke.wireguardautotunnel.util.StringValue
 import java.util.concurrent.ConcurrentHashMap
 import javax.inject.Inject
-import kotlinx.coroutines.*
+import kotlinx.coroutines.CoroutineDispatcher
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.ExperimentalCoroutinesApi
 import kotlinx.coroutines.flow.*
+import kotlinx.coroutines.plus
+import org.amnezia.awg.crypto.Key
 
 @OptIn(ExperimentalCoroutinesApi::class)
 class TunnelManager
 @Inject
 constructor(
-    @Kernel private val kernelTunnel: TunnelProvider,
-    @Userspace private val userspaceTunnel: TunnelProvider,
+    private val kernelTunnel: TunnelProvider,
+    private val userspaceTunnel: TunnelProvider,
     private val appDataRepository: AppDataRepository,
-    @ApplicationScope private val applicationScope: CoroutineScope,
-    @IoDispatcher private val ioDispatcher: CoroutineDispatcher,
-    private val notificationManager: NotificationManager,
+    applicationScope: CoroutineScope,
+    ioDispatcher: CoroutineDispatcher,
 ) : TunnelProvider {
 
     @OptIn(ExperimentalCoroutinesApi::class)
@@ -45,63 +42,29 @@ constructor(
                 initialValue = userspaceTunnel,
             )
 
-    @OptIn(ExperimentalCoroutinesApi::class)
-    override val activeTunnels =
-        appDataRepository.settings.flow
-            .filterNotNull()
-            .flatMapLatest { settings ->
-                if (settings.isKernelEnabled) {
-                    kernelTunnel.activeTunnels
-                } else {
-                    userspaceTunnel.activeTunnels
-                }
-            }
-            .stateIn(
-                scope = applicationScope.plus(ioDispatcher),
-                started = SharingStarted.Eagerly,
-                initialValue = emptyMap(),
-            )
+    override val activeTunnels: StateFlow<Map<TunnelConf, TunnelState>> =
+        tunnelProviderFlow.value.activeTunnels
 
     @OptIn(ExperimentalCoroutinesApi::class)
     override val errorEvents: SharedFlow<Pair<TunnelConf, BackendError>> =
-        combine(
-                tunnelProviderFlow.flatMapLatest { it.errorEvents },
-                WireGuardAutoTunnel.uiActive,
-            ) { errorEvent, isEnabled ->
-                if (isEnabled) errorEvent else null
-            }
-            .filterNotNull()
+        tunnelProviderFlow
+            .flatMapLatest { it.errorEvents }
             .shareIn(
                 scope = applicationScope.plus(ioDispatcher),
-                started = SharingStarted.WhileSubscribed(5_000),
+                started = SharingStarted.Eagerly,
                 replay = 0,
             )
 
-    // observe tunnel errors and launch notifications if ui is inactive
-    init {
-        applicationScope.launch(ioDispatcher) {
-            tunnelProviderFlow
-                .flatMapLatest { it.errorEvents }
-                .collect { (tunnelConf, error) ->
-                    if (!WireGuardAutoTunnel.uiActive.value) {
-                        val notification =
-                            notificationManager.createNotification(
-                                WireGuardNotification.NotificationChannels.VPN,
-                                title = StringValue.DynamicString(tunnelConf.name),
-                                description =
-                                    StringValue.StringResource(
-                                        R.string.tunnel_error_template,
-                                        error.toStringRes(),
-                                    ),
-                            )
-                        notificationManager.show(
-                            NotificationManager.TUNNEL_STATUS_NOTIFICATION_ID,
-                            notification,
-                        )
-                    }
-                }
-        }
-    }
+    @OptIn(ExperimentalCoroutinesApi::class)
+    override val messageEvents: SharedFlow<Pair<TunnelConf, BackendMessage>> =
+        tunnelProviderFlow
+            .flatMapLatest { it.messageEvents }
+            .filterNotNull()
+            .shareIn(
+                scope = applicationScope.plus(ioDispatcher),
+                started = SharingStarted.Eagerly,
+                replay = 0,
+            )
 
     override val bouncingTunnelIds: ConcurrentHashMap<Int, TunnelStatus.StopReason> =
         tunnelProviderFlow.value.bouncingTunnelIds
@@ -110,8 +73,8 @@ constructor(
         return userspaceTunnel.hasVpnPermission()
     }
 
-    override suspend fun updateTunnelStatistics(tunnel: TunnelConf) {
-        tunnelProviderFlow.value.updateTunnelStatistics(tunnel)
+    override fun getStatistics(tunnelConf: TunnelConf): TunnelStatistics? {
+        return tunnelProviderFlow.value.getStatistics(tunnelConf)
     }
 
     override suspend fun startTunnel(tunnelConf: TunnelConf) {
@@ -138,24 +101,35 @@ constructor(
         return tunnelProviderFlow.value.runningTunnelNames()
     }
 
-    override fun getStatistics(tunnelConf: TunnelConf): TunnelStatistics? {
-        return tunnelProviderFlow.value.getStatistics(tunnelConf)
+    override suspend fun updateTunnelStatus(
+        tunnelConf: TunnelConf,
+        status: TunnelStatus?,
+        stats: TunnelStatistics?,
+        pingStates: Map<Key, PingState>?,
+        handshakeSuccessLogs: Boolean?,
+    ) {
+        tunnelProviderFlow.value.updateTunnelStatus(
+            tunnelConf,
+            status,
+            stats,
+            pingStates,
+            handshakeSuccessLogs,
+        )
     }
 
-    fun restorePreviousState(): Job =
-        applicationScope.launch(ioDispatcher) {
-            val settings = appDataRepository.settings.get()
-            if (settings.isRestoreOnBootEnabled) {
-                val previouslyActiveTuns = appDataRepository.tunnels.getActive()
-                val tunsToStart =
-                    previouslyActiveTuns.filterNot { tun ->
-                        activeTunnels.value.any { tun.id == it.key.id }
-                    }
-                if (settings.isKernelEnabled) {
-                    return@launch tunsToStart.forEach { startTunnel(it) }
-                } else {
-                    tunsToStart.firstOrNull()?.let { startTunnel(it) }
+    suspend fun restorePreviousState() {
+        val settings = appDataRepository.settings.get()
+        if (settings.isRestoreOnBootEnabled) {
+            val previouslyActiveTuns = appDataRepository.tunnels.getActive()
+            val tunsToStart =
+                previouslyActiveTuns.filterNot { tun ->
+                    activeTunnels.value.any { tun.id == it.key.id }
                 }
+            if (settings.isKernelEnabled) {
+                return tunsToStart.forEach { startTunnel(it) }
+            } else {
+                tunsToStart.firstOrNull()?.let { startTunnel(it) }
             }
         }
+    }
 }

app/src/main/java/com/zaneschepke/wireguardautotunnel/core/tunnel/TunnelMonitor.kt

@@ -0,0 +1,266 @@
+package com.zaneschepke.wireguardautotunnel.core.tunnel
+
+import com.zaneschepke.logcatter.LogReader
+import com.zaneschepke.networkmonitor.NetworkMonitor
+import com.zaneschepke.wireguardautotunnel.domain.enums.TunnelStatus
+import com.zaneschepke.wireguardautotunnel.domain.model.TunnelConf
+import com.zaneschepke.wireguardautotunnel.domain.repository.AppDataRepository
+import com.zaneschepke.wireguardautotunnel.domain.state.FailureReason
+import com.zaneschepke.wireguardautotunnel.domain.state.PingState
+import com.zaneschepke.wireguardautotunnel.util.extensions.toMillis
+import com.zaneschepke.wireguardautotunnel.util.network.NetworkUtils
+import dagger.hilt.android.scopes.ServiceScoped
+import io.ktor.util.collections.*
+import javax.inject.Inject
+import kotlinx.coroutines.*
+import kotlinx.coroutines.flow.*
+import org.amnezia.awg.crypto.Key
+import timber.log.Timber
+
+@ServiceScoped
+class TunnelMonitor
+@Inject
+constructor(
+    private val appDataRepository: AppDataRepository,
+    private val tunnelManager: TunnelManager,
+    private val networkMonitor: NetworkMonitor,
+    private val networkUtils: NetworkUtils,
+    private val logReader: LogReader,
+) {
+
+    @OptIn(FlowPreview::class)
+    suspend fun startMonitoring(tunnelConf: TunnelConf, withLogs: Boolean): Job = coroutineScope {
+        launch {
+            launch { startTunnelConfChangesJob(tunnelConf) }
+            launch { startPingMonitor(tunnelConf) }
+            launch { startWgStatsPoll(tunnelConf) }
+            if (withLogs) launch { startLogsMonitor(tunnelConf) }
+        }
+    }
+
+    private suspend fun startTunnelConfChangesJob(tunnelConf: TunnelConf) {
+        appDataRepository.tunnels.flow
+            .map { storedTunnels -> storedTunnels.firstOrNull { it.id == tunnelConf.id } }
+            .filterNotNull()
+            .distinctUntilChanged { old, new -> old == new }
+            .collect { storedTunnel ->
+                if (tunnelConf != storedTunnel) {
+                    Timber.d("Config changed for ${storedTunnel.tunName}, bouncing")
+                    withContext(NonCancellable) {
+                        tunnelManager.bounceTunnel(
+                            storedTunnel,
+                            TunnelStatus.StopReason.ConfigChanged,
+                        )
+                    }
+                }
+            }
+    }
+
+    private suspend fun startLogsMonitor(tunnelConf: TunnelConf) {
+        logReader.liveLogs.collect { log ->
+            val healthLogs =
+                when {
+                    log.message.contains(HANDSHAKE_RESPONSE_TEXT, true) ||
+                        log.message.contains(KEEPALIVE_RESPONSE_TEXT, true) -> true
+                    log.message.contains(HANDSHAKE_INIT_FAILED_TEXT, true) ||
+                        log.message.contains(HANDSHAKE_NOT_COMPLETED_TEXT) ||
+                        log.message.contains(DATA_PACKET_FAILED_TEXT) -> false
+
+                    else -> null
+                }
+            healthLogs?.let { healthy ->
+                tunnelManager.updateTunnelStatus(tunnelConf, null, null, null, healthy)
+            }
+        }
+    }
+
+    private suspend fun startPingMonitor(tunnelConf: TunnelConf) = coroutineScope {
+        val pingStatsFlow = MutableStateFlow<Map<Key, PingState>>(emptyMap())
+
+        val tunStateFlow =
+            tunnelManager.activeTunnels.mapNotNull { it.getValueById(tunnelConf.id) }.stateIn(this)
+
+        val connectivityStateFlow = networkMonitor.connectivityStateFlow.stateIn(this)
+
+        val isNetworkConnected = connectivityStateFlow.map { it.hasConnectivity() }.stateIn(this)
+
+        data class NetworkChangeKey(
+            val ethernetConnected: Boolean,
+            val wifiConnected: Boolean,
+            val cellularConnected: Boolean,
+            val wifiSsid: String?,
+        )
+
+        connectivityStateFlow
+            .map {
+                NetworkChangeKey(
+                    ethernetConnected = it.ethernetConnected,
+                    wifiConnected = it.wifiState.connected,
+                    cellularConnected = it.cellularConnected,
+                    wifiSsid = if (it.wifiState.connected) it.wifiState.ssid else null,
+                )
+            }
+            .distinctUntilChanged()
+            .stateIn(this)
+
+        appDataRepository.settings.flow
+            .distinctUntilChanged { old, new ->
+                old.isPingEnabled == new.isPingEnabled &&
+                    old.tunnelPingIntervalSeconds == new.tunnelPingIntervalSeconds &&
+                    old.tunnelPingAttempts == new.tunnelPingAttempts &&
+                    old.tunnelPingTimeoutSeconds == new.tunnelPingTimeoutSeconds
+            }
+            .collectLatest { settings ->
+                if (!settings.isPingEnabled) return@collectLatest
+
+                Timber.d("Starting pinger for ${tunnelConf.tunName} with settings")
+
+                val config = tunnelConf.toAmConfig()
+
+                val pingablePeers = config.peers.filter { it.allowedIps.isNotEmpty() }
+                if (pingablePeers.isEmpty()) return@collectLatest
+
+                suspend fun performPing() {
+                    val updates = ConcurrentMap<Key, PingState>()
+
+                    pingablePeers.forEach { peer ->
+                        val previousState = pingStatsFlow.value[peer.publicKey] ?: PingState()
+
+                        val allowedIpStr = peer.allowedIps.firstOrNull()?.toString()
+                        if (allowedIpStr == null) {
+                            updates[peer.publicKey] =
+                                previousState.copy(
+                                    isReachable = false,
+                                    failureReason = FailureReason.NoResolvedEndpoint,
+                                    lastPingAttemptMillis = System.currentTimeMillis(),
+                                )
+                            return@forEach
+                        }
+
+                        val host =
+                            {
+                                    val parts = allowedIpStr.split("/")
+                                    val internalIp = if (parts.size == 2) parts[0] else allowedIpStr
+
+                                    val prefix =
+                                        if (parts.size == 2) parts[1].toIntOrNull() ?: 32 else 32
+                                    if (prefix <= 1) {
+                                        tunnelConf.pingTarget ?: CLOUDFLARE_IPV4_IP
+                                    } else {
+                                        internalIp.removeSurrounding("[", "]")
+                                    }
+                                }
+                                .invoke()
+
+                        val attemptTime = System.currentTimeMillis()
+                        runCatching {
+                                val pingStats =
+                                    settings.tunnelPingTimeoutSeconds?.let {
+                                        networkUtils.pingWithStats(
+                                            host,
+                                            settings.tunnelPingAttempts,
+                                            it.toMillis(),
+                                        )
+                                    }
+                                        ?: networkUtils.pingWithStats(
+                                            host,
+                                            settings.tunnelPingAttempts,
+                                        )
+
+                                updates[peer.publicKey] =
+                                    previousState.copy(
+                                        transmitted = pingStats.transmitted,
+                                        received = pingStats.received,
+                                        packetLoss = pingStats.packetLoss,
+                                        rttMin = pingStats.rttMin,
+                                        rttMax = pingStats.rttMax,
+                                        rttAvg = pingStats.rttAvg,
+                                        rttStddev = pingStats.rttStddev,
+                                        isReachable = pingStats.isReachable,
+                                        failureReason =
+                                            if (pingStats.isReachable) null
+                                            else FailureReason.PingFailed,
+                                        lastSuccessfulPingMillis =
+                                            pingStats.lastSuccessfulPingMillis
+                                                ?: previousState.lastSuccessfulPingMillis,
+                                        pingTarget = host,
+                                        lastPingAttemptMillis = attemptTime,
+                                    )
+                                Timber.d(
+                                    "Ping completed for peer ${peer.publicKey.toBase64().substring(0, 5)}.. to host $host with stats: $pingStats"
+                                )
+                            }
+                            .onFailure {
+                                Timber.e(
+                                    it,
+                                    "Ping failed for peer ${peer.publicKey} in ${tunnelConf.tunName} to host $host",
+                                )
+                                updates[peer.publicKey] =
+                                    previousState.copy(
+                                        isReachable = false,
+                                        failureReason = FailureReason.PingFailed,
+                                        pingTarget = host,
+                                        lastPingAttemptMillis = attemptTime,
+                                    )
+                            }
+                    }
+
+                    if (updates.isNotEmpty()) {
+                        pingStatsFlow.update { updates }
+                        tunnelManager.updateTunnelStatus(tunnelConf, null, null, updates)
+                    }
+                }
+
+                // Wait for the tunnel to be fully active
+                tunStateFlow.filter { state -> state.status == TunnelStatus.Up }.first()
+
+                // small delay to make sure tunnel is fully up before we actively monitor
+                delay(3_000L)
+
+                while (isActive) {
+                    if (isNetworkConnected.value) {
+                        performPing()
+                    } else {
+                        pingStatsFlow.update { current ->
+                            current.mapValues { entry ->
+                                entry.value.copy(
+                                    isReachable = false,
+                                    failureReason = FailureReason.NoConnectivity,
+                                    lastPingAttemptMillis = System.currentTimeMillis(),
+                                )
+                            }
+                        }
+                        tunnelManager.updateTunnelStatus(
+                            tunnelConf,
+                            null,
+                            null,
+                            pingStatsFlow.value,
+                        )
+                    }
+                    delay(settings.tunnelPingIntervalSeconds.toMillis())
+                }
+            }
+    }
+
+    private suspend fun startWgStatsPoll(tunnelConf: TunnelConf) = coroutineScope {
+        while (isActive) {
+            val stats = tunnelManager.getStatistics(tunnelConf)
+            tunnelManager.updateTunnelStatus(tunnelConf, null, stats, null)
+            delay(STATS_DELAY)
+        }
+    }
+
+    companion object {
+        const val CLOUDFLARE_IPV6_IP = "2606:4700:4700::1111"
+        const val CLOUDFLARE_IPV4_IP = "1.1.1.1"
+
+        const val STATS_DELAY = 1_000L
+
+        const val KEEPALIVE_RESPONSE_TEXT = "Receiving keepalive packet"
+        const val HANDSHAKE_RESPONSE_TEXT = "Received handshake response"
+        const val HANDSHAKE_INIT_FAILED_TEXT = "Failed to send handshake initiation: write udp"
+        const val DATA_PACKET_FAILED_TEXT = "Failed to send data packets"
+        const val HANDSHAKE_NOT_COMPLETED_TEXT =
+            "Handshake did not complete after 5 seconds, retrying"
+    }
+}

app/src/main/java/com/zaneschepke/wireguardautotunnel/core/tunnel/TunnelProvider.kt

@@ -1,14 +1,17 @@
 package com.zaneschepke.wireguardautotunnel.core.tunnel
 
-import com.zaneschepke.wireguardautotunnel.domain.enums.BackendError
 import com.zaneschepke.wireguardautotunnel.domain.enums.BackendState
 import com.zaneschepke.wireguardautotunnel.domain.enums.TunnelStatus
+import com.zaneschepke.wireguardautotunnel.domain.events.BackendError
+import com.zaneschepke.wireguardautotunnel.domain.events.BackendMessage
 import com.zaneschepke.wireguardautotunnel.domain.model.TunnelConf
+import com.zaneschepke.wireguardautotunnel.domain.state.PingState
 import com.zaneschepke.wireguardautotunnel.domain.state.TunnelState
 import com.zaneschepke.wireguardautotunnel.domain.state.TunnelStatistics
 import java.util.concurrent.ConcurrentHashMap
 import kotlinx.coroutines.flow.SharedFlow
 import kotlinx.coroutines.flow.StateFlow
+import org.amnezia.awg.crypto.Key
 
 interface TunnelProvider {
     /** Starts the specified tunnel configuration. */
@@ -23,19 +26,19 @@ interface TunnelProvider {
      */
     suspend fun stopTunnel(
         tunnelConf: TunnelConf? = null,
-        reason: TunnelStatus.StopReason = TunnelStatus.StopReason.USER,
+        reason: TunnelStatus.StopReason = TunnelStatus.StopReason.User,
     )
 
     /**
      * Bounces (stops and restarts) the specified tunnel.
      *
      * @param tunnelConf The tunnel to bounce.
-     * @param reason The reason for bouncing, defaults to USER for manual actions. Callers should
-     *   override with specific reasons (e.g., PING, CONFIG_CHANGED) when applicable.
+     * @param reason The reason for bouncing, defaults to User for manual actions. Callers should
+     *   override with specific reasons (e.g., Ping, ConfigChanged) when applicable.
      */
     suspend fun bounceTunnel(
         tunnelConf: TunnelConf,
-        reason: TunnelStatus.StopReason = TunnelStatus.StopReason.USER,
+        reason: TunnelStatus.StopReason = TunnelStatus.StopReason.User,
     )
 
     fun setBackendState(backendState: BackendState, allowedIps: Collection<String>)
@@ -50,9 +53,17 @@ interface TunnelProvider {
 
     val errorEvents: SharedFlow<Pair<TunnelConf, BackendError>>
 
+    val messageEvents: SharedFlow<Pair<TunnelConf, BackendMessage>>
+
     val bouncingTunnelIds: ConcurrentHashMap<Int, TunnelStatus.StopReason>
 
     fun hasVpnPermission(): Boolean
 
-    suspend fun updateTunnelStatistics(tunnel: TunnelConf)
+    suspend fun updateTunnelStatus(
+        tunnelConf: TunnelConf,
+        status: TunnelStatus? = null,
+        stats: TunnelStatistics? = null,
+        pingStates: Map<Key, PingState>? = null,
+        handshakeSuccessLogs: Boolean? = null,
+    )
 }

app/src/main/java/com/zaneschepke/wireguardautotunnel/core/tunnel/UserspaceTunnel.kt

@@ -1,9 +1,9 @@
 package com.zaneschepke.wireguardautotunnel.core.tunnel
 
 import com.zaneschepke.wireguardautotunnel.core.service.ServiceManager
-import com.zaneschepke.wireguardautotunnel.di.ApplicationScope
 import com.zaneschepke.wireguardautotunnel.domain.enums.BackendState
 import com.zaneschepke.wireguardautotunnel.domain.enums.TunnelStatus
+import com.zaneschepke.wireguardautotunnel.domain.events.BackendError
 import com.zaneschepke.wireguardautotunnel.domain.model.TunnelConf
 import com.zaneschepke.wireguardautotunnel.domain.repository.AppDataRepository
 import com.zaneschepke.wireguardautotunnel.domain.state.AmneziaStatistics
@@ -23,7 +23,7 @@ import timber.log.Timber
 class UserspaceTunnel
 @Inject
 constructor(
-    @ApplicationScope private val applicationScope: CoroutineScope,
+    applicationScope: CoroutineScope,
     val serviceManager: ServiceManager,
     val appDataRepository: AppDataRepository,
     private val backend: Backend,
@@ -40,6 +40,9 @@ constructor(
         } catch (e: BackendException) {
             Timber.e(e, "Failed to start up backend for tunnel ${tunnel.name}")
             throw e.toBackendError()
+        } catch (e: IllegalArgumentException) {
+            Timber.e(e, "Failed to start up backend for tunnel ${tunnel.name}")
+            throw BackendError.Config
         }
     }
 

app/src/main/java/com/zaneschepke/wireguardautotunnel/core/worker/ServiceWorker.kt

@@ -2,11 +2,7 @@ package com.zaneschepke.wireguardautotunnel.core.worker
 
 import android.content.Context
 import androidx.hilt.work.HiltWorker
-import androidx.work.CoroutineWorker
-import androidx.work.ExistingPeriodicWorkPolicy
-import androidx.work.PeriodicWorkRequestBuilder
-import androidx.work.WorkManager
-import androidx.work.WorkerParameters
+import androidx.work.*
 import com.zaneschepke.wireguardautotunnel.core.service.ServiceManager
 import com.zaneschepke.wireguardautotunnel.core.tunnel.TunnelManager
 import com.zaneschepke.wireguardautotunnel.di.IoDispatcher

app/src/main/java/com/zaneschepke/wireguardautotunnel/data/AppDatabase.kt

@@ -1,10 +1,6 @@
 package com.zaneschepke.wireguardautotunnel.data
 
-import androidx.room.AutoMigration
-import androidx.room.Database
-import androidx.room.DeleteColumn
-import androidx.room.RoomDatabase
-import androidx.room.TypeConverters
+import androidx.room.*
 import androidx.room.migration.AutoMigrationSpec
 import com.zaneschepke.wireguardautotunnel.data.dao.SettingsDao
 import com.zaneschepke.wireguardautotunnel.data.dao.TunnelConfigDao
@@ -13,7 +9,7 @@ import com.zaneschepke.wireguardautotunnel.data.entity.TunnelConfig
 
 @Database(
     entities = [Settings::class, TunnelConfig::class],
-    version = 18,
+    version = 19,
     autoMigrations =
         [
             AutoMigration(from = 1, to = 2),
@@ -33,6 +29,7 @@ import com.zaneschepke.wireguardautotunnel.data.entity.TunnelConfig
             AutoMigration(from = 15, to = 16),
             AutoMigration(from = 16, to = 17, spec = WifiDetectionMigration::class),
             AutoMigration(from = 17, to = 18),
+            AutoMigration(from = 18, to = 19, spec = PingMigration::class),
         ],
     exportSchema = true,
 )
@@ -52,3 +49,22 @@ class RemoveTunnelPauseMigration : AutoMigrationSpec
 
 @DeleteColumn(tableName = "Settings", columnName = "is_wifi_by_shell_enabled")
 class WifiDetectionMigration : AutoMigrationSpec
+
+@DeleteColumn.Entries(
+    DeleteColumn(tableName = "TunnelConfig", columnName = "ping_interval"),
+    DeleteColumn(tableName = "TunnelConfig", columnName = "ping_cooldown"),
+    DeleteColumn(tableName = "Settings", columnName = "split_tunnel_apps"),
+)
+@RenameColumn.Entries(
+    RenameColumn(
+        tableName = "TunnelConfig",
+        fromColumnName = "is_ping_enabled",
+        toColumnName = "restart_on_ping_failure",
+    ),
+    RenameColumn(
+        tableName = "TunnelConfig",
+        fromColumnName = "ping_ip",
+        toColumnName = "ping_target",
+    ),
+)
+class PingMigration : AutoMigrationSpec

app/src/main/java/com/zaneschepke/wireguardautotunnel/data/DataStoreManager.kt

@@ -31,6 +31,7 @@ class DataStoreManager(
         val theme = stringPreferencesKey("THEME")
         val isRemoteControlEnabled = booleanPreferencesKey("IS_REMOTE_CONTROL_ENABLED")
         val remoteKey = stringPreferencesKey("REMOTE_KEY")
+        val showDetailedPingStats = booleanPreferencesKey("SHOW_DETAILED_PING_STATS")
     }
 
     // preferences

app/src/main/java/com/zaneschepke/wireguardautotunnel/data/DatabaseConverters.kt

@@ -6,19 +6,19 @@ import kotlinx.serialization.json.Json
 
 class DatabaseConverters {
     @TypeConverter
-    fun listToString(value: MutableList<String>): String {
+    fun listToString(value: List<String>): String {
         return Json.encodeToString(value)
     }
 
     @TypeConverter
-    fun stringToList(value: String): MutableList<String> {
+    fun stringToList(value: String): List<String> {
         if (value.isBlank() || value.isEmpty()) return mutableListOf()
         return try {
-            Json.decodeFromString<MutableList<String>>(value)
+            Json.decodeFromString<List<String>>(value)
         } catch (e: Exception) {
             val list = value.split(",").toMutableList()
             val json = listToString(list)
-            Json.decodeFromString<MutableList<String>>(json)
+            Json.decodeFromString<List<String>>(json)
         }
     }
 

app/src/main/java/com/zaneschepke/wireguardautotunnel/data/dao/SettingsDao.kt

@@ -1,10 +1,6 @@
 package com.zaneschepke.wireguardautotunnel.data.dao
 
-import androidx.room.Dao
-import androidx.room.Delete
-import androidx.room.Insert
-import androidx.room.OnConflictStrategy
-import androidx.room.Query
+import androidx.room.*
 import com.zaneschepke.wireguardautotunnel.data.entity.Settings
 import kotlinx.coroutines.flow.Flow
 

app/src/main/java/com/zaneschepke/wireguardautotunnel/data/dao/TunnelConfigDao.kt

@@ -1,10 +1,6 @@
 package com.zaneschepke.wireguardautotunnel.data.dao
 
-import androidx.room.Dao
-import androidx.room.Delete
-import androidx.room.Insert
-import androidx.room.OnConflictStrategy
-import androidx.room.Query
+import androidx.room.*
 import com.zaneschepke.wireguardautotunnel.data.entity.TunnelConfig
 import com.zaneschepke.wireguardautotunnel.util.extensions.TunnelConfigs
 import kotlinx.coroutines.flow.Flow

app/src/main/java/com/zaneschepke/wireguardautotunnel/data/entity/GeneralState.kt

@@ -9,6 +9,7 @@ data class GeneralState(
     val expandedTunnelIds: List<Int> = emptyList(),
     val isLocalLogsEnabled: Boolean = IS_LOGS_ENABLED_DEFAULT,
     val isRemoteControlEnabled: Boolean = IS_REMOTE_CONTROL_ENABLED,
+    val showDetailedPingStats: Boolean = SHOW_DETAILED_PING_STATS_DEFAULT,
     val remoteKey: String? = null,
     val locale: String? = null,
     val theme: Theme = Theme.AUTOMATIC,
@@ -20,5 +21,6 @@ data class GeneralState(
         const val PIN_LOCK_ENABLED_DEFAULT = false
         const val IS_LOGS_ENABLED_DEFAULT = false
         const val IS_REMOTE_CONTROL_ENABLED = false
+        const val SHOW_DETAILED_PING_STATS_DEFAULT = false
     }
 }

app/src/main/java/com/zaneschepke/wireguardautotunnel/data/entity/Settings.kt

@@ -10,8 +10,7 @@ data class Settings(
     @ColumnInfo(name = "is_tunnel_enabled") val isAutoTunnelEnabled: Boolean = false,
     @ColumnInfo(name = "is_tunnel_on_mobile_data_enabled")
     val isTunnelOnMobileDataEnabled: Boolean = false,
-    @ColumnInfo(name = "trusted_network_ssids")
-    val trustedNetworkSSIDs: MutableList<String> = mutableListOf(),
+    @ColumnInfo(name = "trusted_network_ssids") val trustedNetworkSSIDs: List<String> = emptyList(),
     @ColumnInfo(name = "is_always_on_vpn_enabled") val isAlwaysOnVpnEnabled: Boolean = false,
     @ColumnInfo(name = "is_tunnel_on_ethernet_enabled")
     val isTunnelOnEthernetEnabled: Boolean = false,
@@ -45,12 +44,15 @@ data class Settings(
     val isDisableKillSwitchOnTrustedEnabled: Boolean = false,
     @ColumnInfo(name = "is_tunnel_on_unsecure_enabled", defaultValue = "false")
     val isTunnelOnUnsecureEnabled: Boolean = false,
-    @ColumnInfo(name = "split_tunnel_apps", defaultValue = "")
-    val splitTunnelApps: MutableList<String> = mutableListOf(),
     @ColumnInfo(name = "wifi_detection_method", defaultValue = "0")
     val wifiDetectionMethod: WifiDetectionMethod = WifiDetectionMethod.fromValue(0),
+    @ColumnInfo(name = "is_ping_monitoring_enabled", defaultValue = "true")
+    val isPingMonitoringEnabled: Boolean = true,
+    @ColumnInfo(name = "tunnel_ping_interval_sec", defaultValue = "30")
+    val tunnelPingIntervalSeconds: Int = 30,
+    @ColumnInfo(name = "tunnel_ping_attempts", defaultValue = "3") val tunnelPingAttempts: Int = 3,
+    @ColumnInfo(name = "tunnel_ping_timeout_sec") val tunnelPingTimeoutSeconds: Int? = null,
 ) {
-
     enum class WifiDetectionMethod(val value: Int) {
         DEFAULT(0),
         LEGACY(1),

app/src/main/java/com/zaneschepke/wireguardautotunnel/data/entity/TunnelConfig.kt

@@ -11,23 +11,23 @@ data class TunnelConfig(
     @ColumnInfo(name = "name") val name: String,
     @ColumnInfo(name = "wg_quick") val wgQuick: String,
     @ColumnInfo(name = "tunnel_networks", defaultValue = "")
-    val tunnelNetworks: MutableList<String> = mutableListOf(),
+    val tunnelNetworks: List<String> = listOf(),
     @ColumnInfo(name = "is_mobile_data_tunnel", defaultValue = "false")
     val isMobileDataTunnel: Boolean = false,
     @ColumnInfo(name = "is_primary_tunnel", defaultValue = "false")
     val isPrimaryTunnel: Boolean = false,
     @ColumnInfo(name = "am_quick", defaultValue = "") val amQuick: String = AM_QUICK_DEFAULT,
     @ColumnInfo(name = "is_Active", defaultValue = "false") val isActive: Boolean = false,
-    @ColumnInfo(name = "is_ping_enabled", defaultValue = "false")
-    val isPingEnabled: Boolean = false,
-    @ColumnInfo(name = "ping_interval", defaultValue = "null") val pingInterval: Long? = null,
-    @ColumnInfo(name = "ping_cooldown", defaultValue = "null") val pingCooldown: Long? = null,
-    @ColumnInfo(name = "ping_ip", defaultValue = "null") var pingIp: String? = null,
+    @ColumnInfo(name = "restart_on_ping_failure", defaultValue = "false")
+    val restartOnPingFailure: Boolean = false,
+    @ColumnInfo(name = "ping_target", defaultValue = "null") var pingTarget: String? = null,
     @ColumnInfo(name = "is_ethernet_tunnel", defaultValue = "false")
     val isEthernetTunnel: Boolean = false,
     @ColumnInfo(name = "is_ipv4_preferred", defaultValue = "true")
     val isIpv4Preferred: Boolean = true,
     @ColumnInfo(name = "position", defaultValue = "0") val position: Int = 0,
+    @ColumnInfo(name = "auto_tunnel_apps", defaultValue = "[]")
+    val autoTunnelApps: List<String> = listOf(),
 ) {
 
     companion object {

app/src/main/java/com/zaneschepke/wireguardautotunnel/data/mapper/GeneralStateMapper.kt

@@ -13,6 +13,7 @@ object GeneralStateMapper {
                 expandedTunnelIds,
                 isLocalLogsEnabled,
                 isRemoteControlEnabled,
+                showDetailedPingStats,
                 remoteKey,
                 locale,
                 theme,
@@ -28,6 +29,7 @@ object GeneralStateMapper {
                 expandedTunnelIds,
                 isLocalLogsEnabled,
                 isRemoteControlEnabled,
+                showDetailedPingStats,
                 remoteKey,
                 locale,
                 theme,

app/src/main/java/com/zaneschepke/wireguardautotunnel/data/mapper/GitHubReleaseMapper.kt

@@ -2,7 +2,6 @@ package com.zaneschepke.wireguardautotunnel.data.mapper
 
 import com.zaneschepke.wireguardautotunnel.data.entity.GitHubRelease
 import com.zaneschepke.wireguardautotunnel.domain.model.AppUpdate
-import kotlin.collections.firstOrNull
 
 object GitHubReleaseMapper {
     fun toAppUpdate(gitHubRelease: GitHubRelease, newVersion: String): AppUpdate {

app/src/main/java/com/zaneschepke/wireguardautotunnel/data/mapper/SettingsMapper.kt

@@ -28,11 +28,13 @@ object SettingsMapper {
             debounceDelaySeconds = settings.debounceDelaySeconds,
             isDisableKillSwitchOnTrustedEnabled = settings.isDisableKillSwitchOnTrustedEnabled,
             isTunnelOnUnsecureEnabled = settings.isTunnelOnUnsecureEnabled,
-            splitTunnelApps = settings.splitTunnelApps,
             wifiDetectionMethod =
                 AndroidNetworkMonitor.WifiDetectionMethod.fromValue(
                     settings.wifiDetectionMethod.value
                 ),
+            tunnelPingIntervalSeconds = settings.tunnelPingIntervalSeconds,
+            tunnelPingAttempts = settings.tunnelPingAttempts,
+            tunnelPingTimeoutSeconds = settings.tunnelPingTimeoutSeconds,
         )
     }
 
@@ -41,7 +43,7 @@ object SettingsMapper {
             id = appSettings.id,
             isAutoTunnelEnabled = appSettings.isAutoTunnelEnabled,
             isTunnelOnMobileDataEnabled = appSettings.isTunnelOnMobileDataEnabled,
-            trustedNetworkSSIDs = appSettings.trustedNetworkSSIDs.toMutableList(),
+            trustedNetworkSSIDs = appSettings.trustedNetworkSSIDs,
             isAlwaysOnVpnEnabled = appSettings.isAlwaysOnVpnEnabled,
             isTunnelOnEthernetEnabled = appSettings.isTunnelOnEthernetEnabled,
             isShortcutsEnabled = appSettings.isShortcutsEnabled,
@@ -59,9 +61,11 @@ object SettingsMapper {
             debounceDelaySeconds = appSettings.debounceDelaySeconds,
             isDisableKillSwitchOnTrustedEnabled = appSettings.isDisableKillSwitchOnTrustedEnabled,
             isTunnelOnUnsecureEnabled = appSettings.isTunnelOnUnsecureEnabled,
-            splitTunnelApps = appSettings.splitTunnelApps.toMutableList(),
             wifiDetectionMethod =
                 Settings.WifiDetectionMethod.fromValue(appSettings.wifiDetectionMethod.value),
+            tunnelPingIntervalSeconds = appSettings.tunnelPingIntervalSeconds,
+            tunnelPingAttempts = appSettings.tunnelPingAttempts,
+            tunnelPingTimeoutSeconds = appSettings.tunnelPingTimeoutSeconds,
         )
     }
 }

app/src/main/java/com/zaneschepke/wireguardautotunnel/data/mapper/TunnelConfigMapper.kt

@@ -15,10 +15,8 @@ object TunnelConfigMapper {
                 isPrimaryTunnel,
                 amQuick,
                 isActive,
-                isPingEnabled,
-                pingInterval,
-                pingCooldown,
-                pingIp,
+                pingTarget,
+                restartOnPingFailure,
                 isEthernetTunnel,
                 isIpv4Preferred,
                 position,
@@ -32,15 +30,13 @@ object TunnelConfigMapper {
                 id,
                 tunName,
                 wgQuick,
-                tunnelNetworks.toMutableList(),
+                tunnelNetworks,
                 isMobileDataTunnel,
                 isPrimaryTunnel,
                 amQuick,
                 isActive,
-                isPingEnabled,
-                pingInterval,
-                pingCooldown,
-                pingIp,
+                restartOnPingFailure,
+                pingTarget,
                 isEthernetTunnel,
                 isIpv4Preferred,
                 position,

app/src/main/java/com/zaneschepke/wireguardautotunnel/data/network/KtorClient.kt

@@ -1,10 +1,10 @@
 package com.zaneschepke.wireguardautotunnel.data.network
 
-import io.ktor.client.HttpClient
-import io.ktor.client.engine.okhttp.OkHttp
-import io.ktor.client.plugins.HttpTimeout
-import io.ktor.client.plugins.contentnegotiation.ContentNegotiation
-import io.ktor.serialization.kotlinx.json.json
+import io.ktor.client.*
+import io.ktor.client.engine.okhttp.*
+import io.ktor.client.plugins.*
+import io.ktor.client.plugins.contentnegotiation.*
+import io.ktor.serialization.kotlinx.json.*
 import kotlinx.serialization.json.Json
 
 object KtorClient {

app/src/main/java/com/zaneschepke/wireguardautotunnel/data/network/KtorGitHubApi.kt

@@ -1,11 +1,11 @@
 package com.zaneschepke.wireguardautotunnel.data.network
 
 import com.zaneschepke.wireguardautotunnel.data.entity.GitHubRelease
-import io.ktor.client.HttpClient
-import io.ktor.client.call.body
-import io.ktor.client.plugins.ClientRequestException
-import io.ktor.client.request.get
-import io.ktor.http.HttpStatusCode
+import io.ktor.client.*
+import io.ktor.client.call.*
+import io.ktor.client.plugins.*
+import io.ktor.client.request.*
+import io.ktor.http.*
 
 class KtorGitHubApi(private val client: HttpClient) : GitHubApi {
     override suspend fun getLatestRelease(owner: String, repo: String): Result<GitHubRelease> {

app/src/main/java/com/zaneschepke/wireguardautotunnel/data/repository/DataStoreAppStateRepository.kt

@@ -119,6 +119,15 @@ class DataStoreAppStateRepository(private val dataStoreManager: DataStoreManager
         return dataStoreManager.getFromStore(DataStoreManager.remoteKey)
     }
 
+    override suspend fun setShowDetailedPingStats(showDetailedPing: Boolean) {
+        dataStoreManager.saveToDataStore(DataStoreManager.showDetailedPingStats, showDetailedPing)
+    }
+
+    override suspend fun getShowDetailedPing(): Boolean {
+        return dataStoreManager.getFromStore(DataStoreManager.showDetailedPingStats)
+            ?: GeneralState.SHOW_DETAILED_PING_STATS_DEFAULT
+    }
+
     override val flow: Flow<AppState> =
         dataStoreManager.preferencesFlow
             .map { prefs ->
@@ -144,6 +153,9 @@ class DataStoreAppStateRepository(private val dataStoreManager: DataStoreManager
                             isRemoteControlEnabled =
                                 pref[DataStoreManager.isRemoteControlEnabled]
                                     ?: GeneralState.IS_REMOTE_CONTROL_ENABLED,
+                            showDetailedPingStats =
+                                pref[DataStoreManager.showDetailedPingStats]
+                                    ?: GeneralState.SHOW_DETAILED_PING_STATS_DEFAULT,
                             remoteKey = pref[DataStoreManager.remoteKey],
                             locale = pref[DataStoreManager.locale],
                             theme = getTheme(),

app/src/main/java/com/zaneschepke/wireguardautotunnel/data/repository/GitHubUpdateRepository.kt

@@ -9,13 +9,11 @@ import com.zaneschepke.wireguardautotunnel.domain.model.AppUpdate
 import com.zaneschepke.wireguardautotunnel.domain.repository.UpdateRepository
 import com.zaneschepke.wireguardautotunnel.util.Constants
 import com.zaneschepke.wireguardautotunnel.util.NumberUtils
-import io.ktor.client.HttpClient
-import io.ktor.client.request.get
-import io.ktor.client.statement.HttpResponse
-import io.ktor.client.statement.bodyAsChannel
-import io.ktor.http.contentLength
-import io.ktor.utils.io.ByteReadChannel
-import io.ktor.utils.io.readAvailable
+import io.ktor.client.*
+import io.ktor.client.request.*
+import io.ktor.client.statement.*
+import io.ktor.http.*
+import io.ktor.utils.io.*
 import java.io.File
 import kotlinx.coroutines.CoroutineDispatcher
 import kotlinx.coroutines.withContext

app/src/main/java/com/zaneschepke/wireguardautotunnel/di/AppModule.kt

@@ -4,9 +4,12 @@ import android.content.Context
 import com.zaneschepke.logcatter.LogReader
 import com.zaneschepke.logcatter.LogcatReader
 import com.zaneschepke.wireguardautotunnel.core.notification.NotificationManager
+import com.zaneschepke.wireguardautotunnel.core.notification.NotificationMonitor
 import com.zaneschepke.wireguardautotunnel.core.notification.WireGuardNotification
 import com.zaneschepke.wireguardautotunnel.core.shortcut.DynamicShortcutManager
 import com.zaneschepke.wireguardautotunnel.core.shortcut.ShortcutManager
+import com.zaneschepke.wireguardautotunnel.core.tunnel.TunnelManager
+import com.zaneschepke.wireguardautotunnel.util.network.NetworkUtils
 import dagger.Module
 import dagger.Provides
 import dagger.hilt.InstallIn
@@ -47,4 +50,19 @@ class AppModule {
     ): ShortcutManager {
         return DynamicShortcutManager(context, ioDispatcher)
     }
+
+    @Singleton
+    @Provides
+    fun provideNetworkUtils(@IoDispatcher ioDispatcher: CoroutineDispatcher): NetworkUtils {
+        return NetworkUtils(ioDispatcher)
+    }
+
+    @Singleton
+    @Provides
+    fun provideNotificationMonitor(
+        tunnelManager: TunnelManager,
+        notificationManager: NotificationManager,
+    ): NotificationMonitor {
+        return NotificationMonitor(tunnelManager, notificationManager)
+    }
 }

app/src/main/java/com/zaneschepke/wireguardautotunnel/di/RepositoryModule.kt

@@ -11,22 +11,14 @@ import com.zaneschepke.wireguardautotunnel.data.dao.TunnelConfigDao
 import com.zaneschepke.wireguardautotunnel.data.network.GitHubApi
 import com.zaneschepke.wireguardautotunnel.data.network.KtorClient
 import com.zaneschepke.wireguardautotunnel.data.network.KtorGitHubApi
-import com.zaneschepke.wireguardautotunnel.data.repository.AppDataRoomRepository
-import com.zaneschepke.wireguardautotunnel.data.repository.DataStoreAppStateRepository
-import com.zaneschepke.wireguardautotunnel.data.repository.GitHubUpdateRepository
-import com.zaneschepke.wireguardautotunnel.data.repository.RoomSettingsRepository
-import com.zaneschepke.wireguardautotunnel.data.repository.RoomTunnelRepository
-import com.zaneschepke.wireguardautotunnel.domain.repository.AppDataRepository
-import com.zaneschepke.wireguardautotunnel.domain.repository.AppSettingRepository
-import com.zaneschepke.wireguardautotunnel.domain.repository.AppStateRepository
-import com.zaneschepke.wireguardautotunnel.domain.repository.TunnelRepository
-import com.zaneschepke.wireguardautotunnel.domain.repository.UpdateRepository
+import com.zaneschepke.wireguardautotunnel.data.repository.*
+import com.zaneschepke.wireguardautotunnel.domain.repository.*
 import dagger.Module
 import dagger.Provides
 import dagger.hilt.InstallIn
 import dagger.hilt.android.qualifiers.ApplicationContext
 import dagger.hilt.components.SingletonComponent
-import io.ktor.client.HttpClient
+import io.ktor.client.*
 import javax.inject.Singleton
 import kotlinx.coroutines.CoroutineDispatcher
 

app/src/main/java/com/zaneschepke/wireguardautotunnel/di/TunnelModule.kt

@@ -4,16 +4,15 @@ import android.content.Context
 import com.wireguard.android.backend.WgQuickBackend
 import com.wireguard.android.util.RootShell
 import com.wireguard.android.util.ToolsInstaller
+import com.zaneschepke.logcatter.LogReader
 import com.zaneschepke.networkmonitor.AndroidNetworkMonitor
 import com.zaneschepke.networkmonitor.NetworkMonitor
 import com.zaneschepke.wireguardautotunnel.core.notification.NotificationManager
 import com.zaneschepke.wireguardautotunnel.core.service.ServiceManager
-import com.zaneschepke.wireguardautotunnel.core.tunnel.KernelTunnel
-import com.zaneschepke.wireguardautotunnel.core.tunnel.TunnelManager
-import com.zaneschepke.wireguardautotunnel.core.tunnel.TunnelProvider
-import com.zaneschepke.wireguardautotunnel.core.tunnel.UserspaceTunnel
+import com.zaneschepke.wireguardautotunnel.core.tunnel.*
 import com.zaneschepke.wireguardautotunnel.domain.repository.AppDataRepository
 import com.zaneschepke.wireguardautotunnel.domain.repository.AppSettingRepository
+import com.zaneschepke.wireguardautotunnel.util.network.NetworkUtils
 import dagger.Module
 import dagger.Provides
 import dagger.hilt.InstallIn
@@ -108,7 +107,6 @@ class TunnelModule {
             appDataRepository,
             applicationScope,
             ioDispatcher,
-            notificationManager,
         )
     }
 
@@ -153,4 +151,23 @@ class TunnelModule {
             appDataRepository,
         )
     }
+
+    @Singleton
+    @Provides
+    fun provideTunnelMonitor(
+        @ApplicationContext context: Context,
+        tunnelManager: TunnelManager,
+        networkMonitor: NetworkMonitor,
+        networkUtils: NetworkUtils,
+        logReader: LogReader,
+        appDataRepository: AppDataRepository,
+    ): TunnelMonitor {
+        return TunnelMonitor(
+            appDataRepository,
+            tunnelManager,
+            networkMonitor,
+            networkUtils,
+            logReader,
+        )
+    }
 }

app/src/main/java/com/zaneschepke/wireguardautotunnel/domain/enums/TunnelStatus.kt

@@ -10,10 +10,12 @@ sealed class TunnelStatus {
 
     data object Starting : TunnelStatus()
 
-    enum class StopReason {
-        USER,
-        PING,
-        CONFIG_CHANGED,
+    sealed class StopReason {
+        data object User : StopReason()
+
+        data class Ping(val previouslyResolvedEndpoints: Map<String, String?>) : StopReason()
+
+        data object ConfigChanged : StopReason()
     }
 
     fun isDown(): Boolean {

app/src/main/java/com/zaneschepke/wireguardautotunnel/domain/events/AutoTunnelEvent.kt

@@ -5,7 +5,14 @@ import com.zaneschepke.wireguardautotunnel.domain.model.TunnelConf
 sealed class AutoTunnelEvent {
     data class Start(val tunnelConf: TunnelConf? = null) : AutoTunnelEvent()
 
+    data class Bounce(val configsPeerKeyResolvedMap: List<Pair<TunnelConf, Map<String, String?>>>) :
+        AutoTunnelEvent()
+
     data object Stop : AutoTunnelEvent()
 
     data object DoNothing : AutoTunnelEvent()
+
+    data class StartKillSwitch(val allowedIps: List<String>) : AutoTunnelEvent()
+
+    data object StopKillSwitch : AutoTunnelEvent()
 }

app/src/main/java/com/zaneschepke/wireguardautotunnel/domain/events/BackendError.kt

@@ -1,6 +1,7 @@
-package com.zaneschepke.wireguardautotunnel.domain.enums
+package com.zaneschepke.wireguardautotunnel.domain.events
 
 import com.zaneschepke.wireguardautotunnel.R
+import com.zaneschepke.wireguardautotunnel.util.StringValue
 
 sealed class BackendError : Exception() {
     data object DNS : BackendError()
@@ -19,6 +20,8 @@ sealed class BackendError : Exception() {
 
     data object TunnelNameTooLong : BackendError()
 
+    data class BounceFailed(val error: BackendError) : BackendError()
+
     fun toStringRes() =
         when (this) {
             Config -> R.string.config_error
@@ -29,5 +32,17 @@ sealed class BackendError : Exception() {
             ServiceNotRunning -> R.string.service_running_error
             Unknown -> R.string.unknown_error
             TunnelNameTooLong -> R.string.error_tunnel_name
+            is BounceFailed -> R.string.bounce_failed_template
         }
+
+    fun toStringValue(): StringValue {
+        return when (val backendError = this) {
+            is BounceFailed ->
+                StringValue.StringResource(
+                    backendError.toStringRes(),
+                    backendError.error.toStringRes(),
+                )
+            else -> StringValue.StringResource(backendError.toStringRes())
+        }
+    }
 }

app/src/main/java/com/zaneschepke/wireguardautotunnel/domain/events/BackendMessage.kt

@@ -0,0 +1,19 @@
+package com.zaneschepke.wireguardautotunnel.domain.events
+
+import com.zaneschepke.wireguardautotunnel.R
+import com.zaneschepke.wireguardautotunnel.util.StringValue
+
+sealed class BackendMessage {
+
+    data object BounceSuccess : BackendMessage()
+
+    data object BounceRecovery : BackendMessage()
+
+    fun toStringRes() =
+        when (this) {
+            BounceRecovery -> R.string.pinger_bounce_recovery
+            BounceSuccess -> R.string.pinger_bounce_successful
+        }
+
+    fun toStringValue() = StringValue.StringResource(this.toStringRes())
+}

app/src/main/java/com/zaneschepke/wireguardautotunnel/domain/model/AppSettings.kt

@@ -24,14 +24,12 @@ data class AppSettings(
     val debounceDelaySeconds: Int = 3,
     val isDisableKillSwitchOnTrustedEnabled: Boolean = false,
     val isTunnelOnUnsecureEnabled: Boolean = false,
-    val splitTunnelApps: List<String> = emptyList(),
     val wifiDetectionMethod: AndroidNetworkMonitor.WifiDetectionMethod =
         AndroidNetworkMonitor.WifiDetectionMethod.DEFAULT,
+    val tunnelPingIntervalSeconds: Int = 30,
+    val tunnelPingAttempts: Int = 3,
+    val tunnelPingTimeoutSeconds: Int? = null,
 ) {
-    fun debounceDelayMillis(): Long {
-        return debounceDelaySeconds * 1000L
-    }
-
     fun toAutoTunnelStateString(): String {
         return """
             TunnelOnWifi: $isTunnelOnWifiEnabled

app/src/main/java/com/zaneschepke/wireguardautotunnel/domain/model/AppState.kt

@@ -9,6 +9,7 @@ data class AppState(
     val expandedTunnelIds: List<Int>,
     val isLocalLogsEnabled: Boolean,
     val isRemoteControlEnabled: Boolean,
+    val showDetailedPingStats: Boolean,
     val remoteKey: String?,
     val locale: String?,
     val theme: Theme,

app/src/main/java/com/zaneschepke/wireguardautotunnel/domain/model/TunnelConf.kt

@@ -2,14 +2,9 @@ package com.zaneschepke.wireguardautotunnel.domain.model
 
 import com.wireguard.android.backend.Tunnel
 import com.wireguard.config.Config
-import com.zaneschepke.wireguardautotunnel.util.Constants
 import com.zaneschepke.wireguardautotunnel.util.extensions.*
 import java.io.InputStream
-import java.net.InetAddress
 import java.nio.charset.StandardCharsets
-import kotlin.coroutines.CoroutineContext
-import kotlinx.coroutines.withContext
-import timber.log.Timber
 
 data class TunnelConf(
     val id: Int = 0,
@@ -20,10 +15,8 @@ data class TunnelConf(
     val isPrimaryTunnel: Boolean = false,
     val amQuick: String,
     val isActive: Boolean = false,
-    val isPingEnabled: Boolean = false,
-    val pingInterval: Long? = null,
-    val pingCooldown: Long? = null,
-    val pingIp: String? = null,
+    val pingTarget: String? = null,
+    val restartOnPingFailure: Boolean = false,
     val isEthernetTunnel: Boolean = false,
     val isIpv4Preferred: Boolean = true,
     val position: Int = 0,
@@ -46,10 +39,8 @@ data class TunnelConf(
             isPrimaryTunnel == other.isPrimaryTunnel &&
             isMobileDataTunnel == other.isMobileDataTunnel &&
             isEthernetTunnel == other.isEthernetTunnel &&
-            isPingEnabled == other.isPingEnabled &&
-            pingIp == other.pingIp &&
-            pingCooldown == other.pingCooldown &&
-            pingInterval == other.pingInterval &&
+            pingTarget == other.pingTarget &&
+            restartOnPingFailure == other.restartOnPingFailure &&
             tunnelNetworks == other.tunnelNetworks &&
             isIpv4Preferred == other.isIpv4Preferred
     }
@@ -75,10 +66,8 @@ data class TunnelConf(
         isPrimaryTunnel: Boolean = this.isPrimaryTunnel,
         amQuick: String = this.amQuick,
         isActive: Boolean = this.isActive,
-        isPingEnabled: Boolean = this.isPingEnabled,
-        pingInterval: Long? = this.pingInterval,
-        pingCooldown: Long? = this.pingCooldown,
-        pingIp: String? = this.pingIp,
+        restartOnPingFailure: Boolean = this.restartOnPingFailure,
+        pingIp: String? = this.pingTarget,
         isEthernetTunnel: Boolean = this.isEthernetTunnel,
         isIpv4Preferred: Boolean = this.isIpv4Preferred,
     ): TunnelConf {
@@ -91,10 +80,8 @@ data class TunnelConf(
                 isPrimaryTunnel,
                 amQuick,
                 isActive,
-                isPingEnabled,
-                pingInterval,
-                pingCooldown,
                 pingIp,
+                restartOnPingFailure,
                 isEthernetTunnel,
                 isIpv4Preferred,
                 position,
@@ -138,21 +125,6 @@ data class TunnelConf(
         return tunnelName
     }
 
-    suspend fun isTunnelPingable(context: CoroutineContext): Boolean {
-        return withContext(context) {
-            val config = toWgConfig()
-            if (pingIp != null) {
-                return@withContext InetAddress.getByName(pingIp)
-                    .isReachable(Constants.PING_TIMEOUT.toInt())
-                    .also { Timber.i("Ping reachable $pingIp: $it") }
-            }
-            config.peers
-                .map { peer -> peer.isReachable() }
-                .all { true }
-                .also { Timber.i("Ping of all peers reachable: $it") }
-        }
-    }
-
     companion object {
         fun configFromWgQuick(wgQuick: String): Config {
             val inputStream: InputStream = wgQuick.byteInputStream()

app/src/main/java/com/zaneschepke/wireguardautotunnel/domain/repository/AppStateRepository.kt

@@ -41,5 +41,9 @@ interface AppStateRepository {
 
     suspend fun getRemoteKey(): String?
 
+    suspend fun setShowDetailedPingStats(showDetailedPing: Boolean)
+
+    suspend fun getShowDetailedPing(): Boolean
+
     val flow: Flow<AppState>
 }

app/src/main/java/com/zaneschepke/wireguardautotunnel/domain/state/AutoTunnelState.kt

@@ -1,10 +1,8 @@
 package com.zaneschepke.wireguardautotunnel.domain.state
 
-import com.zaneschepke.wireguardautotunnel.core.tunnel.allDown
-import com.zaneschepke.wireguardautotunnel.core.tunnel.hasActive
-import com.zaneschepke.wireguardautotunnel.core.tunnel.isUp
+import com.zaneschepke.wireguardautotunnel.core.service.autotunnel.StateChange
 import com.zaneschepke.wireguardautotunnel.domain.events.AutoTunnelEvent
-import com.zaneschepke.wireguardautotunnel.domain.events.KillSwitchEvent
+import com.zaneschepke.wireguardautotunnel.domain.events.AutoTunnelEvent.*
 import com.zaneschepke.wireguardautotunnel.domain.model.AppSettings
 import com.zaneschepke.wireguardautotunnel.domain.model.TunnelConf
 import com.zaneschepke.wireguardautotunnel.util.extensions.isMatchingToWildcardList
@@ -16,6 +14,68 @@ data class AutoTunnelState(
     val tunnels: List<TunnelConf> = emptyList(),
 ) {
 
+    fun determineAutoTunnelEvent(stateChange: StateChange): AutoTunnelEvent {
+        when (val change = stateChange) {
+            is StateChange.NetworkChange,
+            is StateChange.SettingsChange -> {
+                // Compute desired tunnel based on network conditions
+                var desiredTunnel: TunnelConf? = null
+                if (networkState.isEthernetConnected && settings.isTunnelOnEthernetEnabled) {
+                    desiredTunnel = preferredEthernetTunnel()
+                } else if (isMobileDataActive() && settings.isTunnelOnMobileDataEnabled) {
+                    desiredTunnel = preferredMobileDataTunnel()
+                } else if (
+                    isWifiActive() && settings.isTunnelOnWifiEnabled && !isCurrentSSIDTrusted()
+                ) {
+                    desiredTunnel = preferredWifiTunnel()
+                }
+
+                // Override for no connectivity if enabled
+                if (isNoConnectivity() && settings.isStopOnNoInternetEnabled) {
+                    desiredTunnel = null
+                }
+
+                // Determine current active tunnel (assuming only one can be active)
+                val currentTunnel = activeTunnels.entries.firstOrNull()?.key
+
+                // Handle tunnel start/stop/change
+                if (desiredTunnel != null) {
+                    if (currentTunnel != desiredTunnel) {
+                        // Start or switch to the desired tunnel (overrides any kill switch)
+                        return Start(desiredTunnel)
+                    }
+                    // If already active and matching, fall through to kill switch check (though
+                    // unlikely needed)
+                } else {
+                    if (currentTunnel != null) {
+                        // Stop the active tunnel (then next emission can handle kill switch if
+                        // needed)
+                        return AutoTunnelEvent.Stop
+                    }
+                }
+                // Handle kill switch only if no user tunnel is or will be active
+                if (stopKillSwitchOnTrusted()) {
+                    return AutoTunnelEvent.StopKillSwitch
+                }
+                if (startKillSwitch()) {
+                    val allowedIps =
+                        if (settings.isLanOnKillSwitchEnabled) TunnelConf.LAN_BYPASS_ALLOWED_IPS
+                        else emptyList()
+                    return StartKillSwitch(allowedIps)
+                }
+            }
+            is StateChange.MonitoringChange -> {
+                val bounceTunnels = bounceOnPingFailed()
+                if (bounceTunnels.isNotEmpty()) {
+                    return Bounce(bounceTunnels)
+                }
+            }
+
+            is StateChange.ActiveTunnelsChange -> Unit
+        }
+        return DoNothing
+    }
+
     // also need to check for Wi-Fi state as there is some overlap when they are both connected
     private fun isMobileDataActive(): Boolean {
         return !networkState.isEthernetConnected &&
@@ -23,32 +83,22 @@ data class AutoTunnelState(
             networkState.isMobileDataConnected
     }
 
-    private fun isMobileTunnelDataChangeNeeded(): Boolean {
-        val preferredTunnel = preferredMobileDataTunnel()
-        return preferredTunnel != null &&
-            activeTunnels.isNotEmpty() &&
-            !activeTunnels.isUp(preferredTunnel)
-    }
-
-    private fun isEthernetTunnelChangeNeeded(): Boolean {
-        val preferredTunnel = preferredEthernetTunnel()
-        return preferredTunnel != null &&
-            activeTunnels.isNotEmpty() &&
-            !activeTunnels.isUp(preferredTunnel)
-    }
-
     private fun preferredMobileDataTunnel(): TunnelConf? {
         return tunnels.firstOrNull { it.isMobileDataTunnel }
             ?: tunnels.firstOrNull { it.isPrimaryTunnel }
+            ?: tunnels.firstOrNull()
     }
 
     private fun preferredEthernetTunnel(): TunnelConf? {
         return tunnels.firstOrNull { it.isEthernetTunnel }
             ?: tunnels.firstOrNull { it.isPrimaryTunnel }
+            ?: tunnels.firstOrNull()
     }
 
     private fun preferredWifiTunnel(): TunnelConf? {
-        return getTunnelWithMatchingTunnelNetwork() ?: tunnels.firstOrNull { it.isPrimaryTunnel }
+        return getTunnelWithMatchingTunnelNetwork()
+            ?: tunnels.firstOrNull { it.isPrimaryTunnel }
+            ?: tunnels.firstOrNull()
     }
 
     // ignore cellular state as there is overlap where it may still be active, but not prioritized
@@ -56,19 +106,6 @@ data class AutoTunnelState(
         return !networkState.isEthernetConnected && networkState.isWifiConnected
     }
 
-    private fun startOnEthernet(): Boolean {
-        return networkState.isEthernetConnected &&
-            settings.isTunnelOnEthernetEnabled &&
-            activeTunnels.allDown()
-    }
-
-    private fun stopOnEthernet(): Boolean {
-        return networkState.isEthernetConnected &&
-            !settings.isTunnelOnEthernetEnabled &&
-            activeTunnels.hasActive()
-    }
-
-    // TODO test removed kill switch state check
     private fun stopKillSwitchOnTrusted(): Boolean {
         return networkState.isWifiConnected &&
             settings.isVpnKillSwitchEnabled &&
@@ -76,7 +113,6 @@ data class AutoTunnelState(
             isCurrentSSIDTrusted()
     }
 
-    // TODO test, removed kill switch state check
     private fun startKillSwitch(): Boolean {
         return settings.isVpnKillSwitchEnabled &&
             (!settings.isDisableKillSwitchOnTrustedEnabled || !isCurrentSSIDTrusted())
@@ -88,93 +124,21 @@ data class AutoTunnelState(
             !networkState.isMobileDataConnected
     }
 
-    private fun stopOnMobileData(): Boolean {
-        return isMobileDataActive() &&
-            !settings.isTunnelOnMobileDataEnabled &&
-            activeTunnels.hasActive()
-    }
-
-    private fun startOnMobileData(): Boolean {
-        return isMobileDataActive() &&
-            settings.isTunnelOnMobileDataEnabled &&
-            activeTunnels.allDown()
-    }
-
-    private fun changeOnMobileData(): Boolean {
-        return isMobileDataActive() &&
-            settings.isTunnelOnMobileDataEnabled &&
-            isMobileTunnelDataChangeNeeded()
-    }
-
-    private fun changeOnEthernet(): Boolean {
-        return networkState.isEthernetConnected &&
-            settings.isTunnelOnEthernetEnabled &&
-            isEthernetTunnelChangeNeeded()
-    }
-
-    private fun stopOnWifi(): Boolean {
-        return isWifiActive() && !settings.isTunnelOnWifiEnabled && activeTunnels.hasActive()
-    }
-
-    private fun stopOnTrustedWifi(): Boolean {
-        return isWifiActive() &&
-            settings.isTunnelOnWifiEnabled &&
-            activeTunnels.hasActive() &&
-            isCurrentSSIDTrusted()
-    }
-
-    private fun startOnUntrustedWifi(): Boolean {
-        return isWifiActive() &&
-            settings.isTunnelOnWifiEnabled &&
-            activeTunnels.allDown() &&
-            !isCurrentSSIDTrusted()
-    }
-
-    private fun changeOnUntrustedWifi(): Boolean {
-        return isWifiActive() &&
-            settings.isTunnelOnWifiEnabled &&
-            activeTunnels.hasActive() &&
-            !isCurrentSSIDTrusted() &&
-            !isWifiTunnelPreferred()
-    }
-
-    private fun isWifiTunnelPreferred(): Boolean {
-        val preferred = preferredWifiTunnel()
-        return preferred?.let { activeTunnels.isUp(it) } ?: true
-    }
-
-    fun asAutoTunnelEvent(): AutoTunnelEvent {
-        return when {
-            // ethernet scenarios
-            stopOnEthernet() -> AutoTunnelEvent.Stop
-            startOnEthernet() || changeOnEthernet() ->
-                AutoTunnelEvent.Start(preferredEthernetTunnel())
-            // mobile data scenarios
-            stopOnMobileData() -> AutoTunnelEvent.Stop
-            startOnMobileData() || changeOnMobileData() ->
-                AutoTunnelEvent.Start(preferredMobileDataTunnel())
-            // wifi scenarios
-            stopOnWifi() -> AutoTunnelEvent.Stop
-            stopOnTrustedWifi() -> AutoTunnelEvent.Stop
-            startOnUntrustedWifi() || changeOnUntrustedWifi() ->
-                AutoTunnelEvent.Start(preferredWifiTunnel())
-            // no connectivity
-            isNoConnectivity() && settings.isStopOnNoInternetEnabled -> AutoTunnelEvent.Stop
-            else -> AutoTunnelEvent.DoNothing
-        }
-    }
-
-    fun asKillSwitchEvent(): KillSwitchEvent {
-        return when {
-            stopKillSwitchOnTrusted() -> KillSwitchEvent.Stop
-            startKillSwitch() -> {
-                val allowedIps =
-                    if (settings.isLanOnKillSwitchEnabled) TunnelConf.LAN_BYPASS_ALLOWED_IPS
-                    else emptyList()
-                KillSwitchEvent.Start(allowedIps)
+    private fun bounceOnPingFailed(): List<Pair<TunnelConf, Map<String, String?>>> {
+        return activeTunnels.entries
+            .filter { (tunnel, state) ->
+                tunnel.restartOnPingFailure &&
+                    (state.pingStates?.any { (key, pingState) ->
+                        pingState.failureReason == FailureReason.PingFailed
+                    } ?: false)
+            }
+            .map { (tunnel, state) ->
+                val peerMap =
+                    (state.statistics?.getPeers()?.associate { peerKey ->
+                        peerKey.toBase64() to state.statistics.peerStats(peerKey)?.resolvedEndpoint
+                    } ?: emptyMap())
+                Pair(tunnel, peerMap)
             }
-            else -> KillSwitchEvent.DoNothing
-        }
     }
 
     private fun isCurrentSSIDTrusted(): Boolean {

app/src/main/java/com/zaneschepke/wireguardautotunnel/domain/state/PingState.kt

@@ -0,0 +1,26 @@
+package com.zaneschepke.wireguardautotunnel.domain.state
+
+import com.zaneschepke.wireguardautotunnel.core.tunnel.TunnelMonitor.Companion.CLOUDFLARE_IPV4_IP
+
+enum class FailureReason {
+    NoConnectivity,
+    PingFailed,
+    NoResolvedEndpoint,
+    Timeout,
+    Unknown,
+}
+
+data class PingState(
+    val transmitted: Int = 0,
+    val received: Int = 0,
+    val packetLoss: Double = 0.0,
+    val rttMin: Double = 0.0,
+    val rttMax: Double = 0.0,
+    val rttAvg: Double = 0.0,
+    val rttStddev: Double = 0.0,
+    val isReachable: Boolean = false,
+    val lastSuccessfulPingMillis: Long? = null,
+    val lastPingAttemptMillis: Long? = null,
+    val failureReason: FailureReason? = null,
+    val pingTarget: String = CLOUDFLARE_IPV4_IP,
+)

app/src/main/java/com/zaneschepke/wireguardautotunnel/domain/state/TunnelState.kt

@@ -2,9 +2,12 @@ package com.zaneschepke.wireguardautotunnel.domain.state
 
 import com.zaneschepke.wireguardautotunnel.domain.enums.BackendState
 import com.zaneschepke.wireguardautotunnel.domain.enums.TunnelStatus
+import org.amnezia.awg.crypto.Key
 
 data class TunnelState(
     val status: TunnelStatus = TunnelStatus.Down,
     val backendState: BackendState = BackendState.INACTIVE,
     val statistics: TunnelStatistics? = null,
+    val pingStates: Map<Key, PingState>? = null,
+    val handshakeSuccessLogs: Boolean? = null,
 )

app/src/main/java/com/zaneschepke/wireguardautotunnel/domain/state/TunnelStatistics.kt

@@ -3,13 +3,24 @@ package com.zaneschepke.wireguardautotunnel.domain.state
 import org.amnezia.awg.crypto.Key
 
 abstract class TunnelStatistics {
-    @JvmRecord
-    data class PeerStats(
+    open class PeerStats(
         val rxBytes: Long,
         val txBytes: Long,
         val latestHandshakeEpochMillis: Long,
         val resolvedEndpoint: String,
-    )
+    ) {
+        // mimic data class copy
+        open fun copy(
+            rxBytes: Long = this.rxBytes,
+            txBytes: Long = this.txBytes,
+            latestHandshakeEpochMillis: Long = this.latestHandshakeEpochMillis,
+            resolvedEndpoint: String = this.resolvedEndpoint,
+        ): PeerStats = PeerStats(rxBytes, txBytes, latestHandshakeEpochMillis, resolvedEndpoint)
+
+        // Manual toString: Format like data class
+        override fun toString(): String =
+            "PeerStats(rxBytes=$rxBytes, txBytes=$txBytes, latestHandshakeEpochMillis=$latestHandshakeEpochMillis, resolvedEndpoint=$resolvedEndpoint)"
+    }
 
     abstract fun peerStats(peer: Key): PeerStats?
 

app/src/main/java/com/zaneschepke/wireguardautotunnel/ui/Route.kt

@@ -47,4 +47,6 @@ sealed class Route {
     @Serializable data object Logs : Route()
 
     @Serializable data object Sort : Route()
+
+    @Serializable data object TunnelMonitoring : Route()
 }

app/src/main/java/com/zaneschepke/wireguardautotunnel/ui/common/animation/ShimmerEffect.kt

@@ -1,10 +1,6 @@
 package com.zaneschepke.wireguardautotunnel.ui.common.animation
 
-import androidx.compose.animation.core.LinearEasing
-import androidx.compose.animation.core.animateFloat
-import androidx.compose.animation.core.infiniteRepeatable
-import androidx.compose.animation.core.rememberInfiniteTransition
-import androidx.compose.animation.core.tween
+import androidx.compose.animation.core.*
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.getValue
 import androidx.compose.ui.Modifier

app/src/main/java/com/zaneschepke/wireguardautotunnel/ui/common/button/ClickableIconButton.kt

@@ -3,11 +3,7 @@ package com.zaneschepke.wireguardautotunnel.ui.common.button
 import androidx.compose.foundation.clickable
 import androidx.compose.foundation.layout.Spacer
 import androidx.compose.foundation.layout.size
-import androidx.compose.material3.ButtonDefaults
-import androidx.compose.material3.Icon
-import androidx.compose.material3.MaterialTheme
-import androidx.compose.material3.Text
-import androidx.compose.material3.TextButton
+import androidx.compose.material3.*
 import androidx.compose.runtime.Composable
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.vector.ImageVector

app/src/main/java/com/zaneschepke/wireguardautotunnel/ui/common/button/SelectionItemButton.kt

@@ -2,18 +2,9 @@ package com.zaneschepke.wireguardautotunnel.ui.common.button
 
 import androidx.compose.foundation.clickable
 import androidx.compose.foundation.interaction.MutableInteractionSource
-import androidx.compose.foundation.layout.Arrangement
-import androidx.compose.foundation.layout.Row
-import androidx.compose.foundation.layout.fillMaxSize
-import androidx.compose.foundation.layout.fillMaxWidth
-import androidx.compose.foundation.layout.height
-import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.*
 import androidx.compose.foundation.shape.RoundedCornerShape
-import androidx.compose.material3.Card
-import androidx.compose.material3.CardDefaults
-import androidx.compose.material3.MaterialTheme
-import androidx.compose.material3.Text
-import androidx.compose.material3.ripple
+import androidx.compose.material3.*
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.remember
 import androidx.compose.ui.Alignment

app/src/main/java/com/zaneschepke/wireguardautotunnel/ui/common/config/SubmitConfigurationTextBox.kt

@@ -12,11 +12,7 @@ import androidx.compose.material3.Icon
 import androidx.compose.material3.IconButton
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Text
-import androidx.compose.runtime.Composable
-import androidx.compose.runtime.getValue
-import androidx.compose.runtime.mutableStateOf
-import androidx.compose.runtime.remember
-import androidx.compose.runtime.setValue
+import androidx.compose.runtime.*
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.platform.LocalFocusManager
 import androidx.compose.ui.platform.LocalSoftwareKeyboardController
@@ -32,6 +28,7 @@ fun SubmitConfigurationTextBox(
     hint: String,
     isErrorValue: (value: String?) -> Boolean,
     onSubmit: (value: String) -> Unit,
+    supportingText: @Composable (() -> Unit)? = null,
     keyboardOptions: KeyboardOptions =
         KeyboardOptions(capitalization = KeyboardCapitalization.None, imeAction = ImeAction.Done),
 ) {
@@ -49,6 +46,7 @@ fun SubmitConfigurationTextBox(
         value = stateValue,
         onValueChange = { stateValue = it },
         interactionSource = interactionSource,
+        supportingText = supportingText,
         label = {
             Text(
                 label,

app/src/main/java/com/zaneschepke/wireguardautotunnel/ui/common/dialog/InfoDialog.kt

@@ -1,10 +1,6 @@
 package com.zaneschepke.wireguardautotunnel.ui.common.dialog
 
-import androidx.compose.material3.AlertDialog
-import androidx.compose.material3.MaterialTheme
-import androidx.compose.material3.Surface
-import androidx.compose.material3.Text
-import androidx.compose.material3.TextButton
+import androidx.compose.material3.*
 import androidx.compose.runtime.Composable
 import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.unit.dp

app/src/main/java/com/zaneschepke/wireguardautotunnel/ui/common/dropdown/DropdownSelector.kt

@@ -1,4 +1,4 @@
-package com.zaneschepke.wireguardautotunnel.ui.common
+package com.zaneschepke.wireguardautotunnel.ui.common.dropdown
 
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Row
@@ -6,11 +6,7 @@ import androidx.compose.foundation.layout.height
 import androidx.compose.foundation.rememberScrollState
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.filled.ArrowDropDown
-import androidx.compose.material3.DropdownMenu
-import androidx.compose.material3.DropdownMenuItem
-import androidx.compose.material3.Icon
-import androidx.compose.material3.MaterialTheme
-import androidx.compose.material3.Text
+import androidx.compose.material3.*
 import androidx.compose.runtime.Composable
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
@@ -20,9 +16,9 @@ import com.zaneschepke.wireguardautotunnel.R
 
 @Composable
 fun <T> DropdownSelector(
-    currentValue: T,
-    options: List<T>,
-    onValueSelected: (T) -> Unit,
+    currentValue: T?,
+    options: List<T?>,
+    onValueSelected: (T?) -> Unit,
     modifier: Modifier = Modifier,
     label: @Composable (() -> Unit)? = null,
     isExpanded: Boolean = false,
@@ -33,7 +29,10 @@ fun <T> DropdownSelector(
         verticalAlignment = Alignment.CenterVertically,
     ) {
         if (label != null) label()
-        Text(text = currentValue.toString(), style = MaterialTheme.typography.bodyMedium)
+        Text(
+            text = currentValue?.toString() ?: stringResource(R.string._default),
+            style = MaterialTheme.typography.bodyMedium,
+        )
         Icon(Icons.Default.ArrowDropDown, contentDescription = stringResource(R.string.dropdown))
     }
     DropdownMenu(
@@ -44,11 +43,20 @@ fun <T> DropdownSelector(
         onDismissRequest = onDismiss,
     ) {
         options.forEach { option ->
+            if (option == null) {
+                return@forEach DropdownMenuItem(
+                    text = { Text(text = stringResource(R.string._default)) },
+                    onClick = {
+                        onValueSelected(null)
+                        onDismiss()
+                    },
+                )
+            }
             DropdownMenuItem(
                 text = { Text(text = option.toString()) },
                 onClick = {
                     onValueSelected(option)
-                    onDismiss() // Close dropdown after selection
+                    onDismiss()
                 },
             )
         }

app/src/main/java/com/zaneschepke/wireguardautotunnel/ui/common/dropdown/LabelledNumberDropdown.kt

@@ -0,0 +1,36 @@
+package com.zaneschepke.wireguardautotunnel.ui.common.dropdown
+
+import androidx.compose.runtime.*
+import com.zaneschepke.wireguardautotunnel.ui.common.button.surface.SelectionItem
+import com.zaneschepke.wireguardautotunnel.ui.common.button.surface.SurfaceSelectionGroupButton
+
+@Composable
+fun LabelledNumberDropdown(
+    title: @Composable () -> Unit,
+    description: (@Composable () -> Unit)? = null,
+    leading: @Composable () -> Unit,
+    onSelected: (Int?) -> Unit,
+    options: List<Int?>,
+    currentValue: Int?,
+) {
+    var isDropDownExpanded by remember { mutableStateOf(false) }
+    SurfaceSelectionGroupButton(
+        listOf(
+            SelectionItem(
+                leading = leading,
+                title = title,
+                description = description,
+                onClick = { isDropDownExpanded = true },
+                trailing = {
+                    DropdownSelector(
+                        currentValue = currentValue,
+                        options = options,
+                        onValueSelected = { num -> onSelected(num) },
+                        isExpanded = isDropDownExpanded,
+                        onDismiss = { isDropDownExpanded = false },
+                    )
+                },
+            )
+        )
+    )
+}

app/src/main/java/com/zaneschepke/wireguardautotunnel/ui/common/snackbar/CustomSnackbar.kt

@@ -1,12 +1,6 @@
 package com.zaneschepke.wireguardautotunnel.ui.common.snackbar
 
-import androidx.compose.foundation.layout.Arrangement
-import androidx.compose.foundation.layout.IntrinsicSize
-import androidx.compose.foundation.layout.Row
-import androidx.compose.foundation.layout.fillMaxWidth
-import androidx.compose.foundation.layout.height
-import androidx.compose.foundation.layout.padding
-import androidx.compose.foundation.layout.width
+import androidx.compose.foundation.layout.*
 import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.rounded.Info

app/src/main/java/com/zaneschepke/wireguardautotunnel/ui/navigation/components/currentNavBackStackEntryAsNavBarState.kt

@@ -163,6 +163,12 @@ fun currentNavBackStackEntryAsNavBarState(
                         route = Route.Display,
                     )
 
+                backStackEntry.isCurrentRoute(Route.TunnelMonitoring::class) ->
+                    NavBarState(
+                        topTitle = { Text(stringResource(R.string.tunnel_monitoring)) },
+                        route = Route.TunnelMonitoring,
+                    )
+
                 backStackEntry.isCurrentRoute(Route.WifiDetectionMethod::class) ->
                     NavBarState(
                         topTitle = { Text(stringResource(R.string.wifi_detection_method)) },

app/src/main/java/com/zaneschepke/wireguardautotunnel/ui/screens/autotunnel/AutoTunnelScreen.kt

@@ -9,11 +9,7 @@ import androidx.compose.foundation.verticalScroll
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.outlined.CheckCircle
 import androidx.compose.material.icons.outlined.Info
-import androidx.compose.material3.Button
-import androidx.compose.material3.Icon
-import androidx.compose.material3.MaterialTheme
-import androidx.compose.material3.Text
-import androidx.compose.material3.TextButton
+import androidx.compose.material3.*
 import androidx.compose.runtime.*
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier

app/src/main/java/com/zaneschepke/wireguardautotunnel/ui/screens/autotunnel/advanced/AutoTunnelAdvancedScreen.kt

@@ -6,13 +6,21 @@ import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.rememberScrollState
 import androidx.compose.foundation.verticalScroll
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.outlined.PauseCircle
+import androidx.compose.material3.Icon
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
+import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.unit.dp
-import com.zaneschepke.wireguardautotunnel.ui.screens.autotunnel.advanced.components.DebounceDelaySelector
+import com.zaneschepke.wireguardautotunnel.R
+import com.zaneschepke.wireguardautotunnel.ui.common.dropdown.LabelledNumberDropdown
 import com.zaneschepke.wireguardautotunnel.ui.state.AppUiState
 import com.zaneschepke.wireguardautotunnel.viewmodel.AppViewModel
+import com.zaneschepke.wireguardautotunnel.viewmodel.event.AppEvent
 
 @Composable
 fun AutoTunnelAdvancedScreen(appUiState: AppUiState, viewModel: AppViewModel) {
@@ -25,9 +33,22 @@ fun AutoTunnelAdvancedScreen(appUiState: AppUiState, viewModel: AppViewModel) {
                 .padding(vertical = 24.dp)
                 .padding(horizontal = 12.dp),
     ) {
-        DebounceDelaySelector(
-            currentDelay = appUiState.appSettings.debounceDelaySeconds,
-            onEvent = viewModel::handleEvent,
+        LabelledNumberDropdown(
+            title = {
+                Text(
+                    stringResource(R.string.debounce_delay),
+                    style =
+                        MaterialTheme.typography.bodyMedium.copy(
+                            color = MaterialTheme.colorScheme.onSurface
+                        ),
+                )
+            },
+            leading = { Icon(Icons.Outlined.PauseCircle, null) },
+            onSelected = { selected ->
+                viewModel.handleEvent(AppEvent.SetDebounceDelay(selected!!))
+            },
+            options = (0..10).toList(),
+            currentValue = appUiState.appSettings.debounceDelaySeconds,
         )
     }
 }

app/src/main/java/com/zaneschepke/wireguardautotunnel/ui/screens/autotunnel/advanced/components/DebounceDelaySelector.kt

@@ -1,50 +0,0 @@
-package com.zaneschepke.wireguardautotunnel.ui.screens.autotunnel.advanced.components
-
-import androidx.compose.material.icons.Icons
-import androidx.compose.material.icons.outlined.PauseCircle
-import androidx.compose.material3.Icon
-import androidx.compose.material3.MaterialTheme
-import androidx.compose.material3.Text
-import androidx.compose.runtime.Composable
-import androidx.compose.runtime.getValue
-import androidx.compose.runtime.mutableStateOf
-import androidx.compose.runtime.remember
-import androidx.compose.runtime.setValue
-import androidx.compose.ui.res.stringResource
-import com.zaneschepke.wireguardautotunnel.R
-import com.zaneschepke.wireguardautotunnel.ui.common.DropdownSelector
-import com.zaneschepke.wireguardautotunnel.ui.common.button.surface.SelectionItem
-import com.zaneschepke.wireguardautotunnel.ui.common.button.surface.SurfaceSelectionGroupButton
-import com.zaneschepke.wireguardautotunnel.viewmodel.event.AppEvent
-
-@Composable
-fun DebounceDelaySelector(currentDelay: Int, onEvent: (AppEvent) -> Unit) {
-    var isDropDownExpanded by remember { mutableStateOf(false) }
-
-    SurfaceSelectionGroupButton(
-        listOf(
-            SelectionItem(
-                leading = { Icon(Icons.Outlined.PauseCircle, contentDescription = null) },
-                title = {
-                    Text(
-                        stringResource(R.string.debounce_delay),
-                        style =
-                            MaterialTheme.typography.bodyMedium.copy(
-                                color = MaterialTheme.colorScheme.onSurface
-                            ),
-                    )
-                },
-                onClick = { isDropDownExpanded = true },
-                trailing = {
-                    DropdownSelector(
-                        currentValue = currentDelay,
-                        options = (0..10).toList(),
-                        onValueSelected = { num -> onEvent(AppEvent.SetDebounceDelay(num)) },
-                        isExpanded = isDropDownExpanded,
-                        onDismiss = { isDropDownExpanded = false },
-                    )
-                },
-            )
-        )
-    )
-}

app/src/main/java/com/zaneschepke/wireguardautotunnel/ui/screens/autotunnel/components/TrustNetworksTextBox.kt

@@ -1,12 +1,7 @@
 package com.zaneschepke.wireguardautotunnel.ui.screens.autotunnel.components
 
 import androidx.compose.foundation.interaction.MutableInteractionSource
-import androidx.compose.foundation.layout.Arrangement
-import androidx.compose.foundation.layout.Column
-import androidx.compose.foundation.layout.ExperimentalLayoutApi
-import androidx.compose.foundation.layout.FlowRow
-import androidx.compose.foundation.layout.fillMaxWidth
-import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.*
 import androidx.compose.foundation.text.KeyboardActions
 import androidx.compose.foundation.text.KeyboardOptions
 import androidx.compose.material.icons.Icons

app/src/main/java/com/zaneschepke/wireguardautotunnel/ui/screens/main/autotunnel/TunnelAutoTunnelScreen.kt

@@ -6,12 +6,7 @@ import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.rememberScrollState
 import androidx.compose.foundation.verticalScroll
-import androidx.compose.runtime.Composable
-import androidx.compose.runtime.LaunchedEffect
-import androidx.compose.runtime.getValue
-import androidx.compose.runtime.mutableStateOf
-import androidx.compose.runtime.remember
-import androidx.compose.runtime.setValue
+import androidx.compose.runtime.*
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.unit.dp
@@ -19,6 +14,7 @@ import com.zaneschepke.wireguardautotunnel.domain.model.AppSettings
 import com.zaneschepke.wireguardautotunnel.domain.model.TunnelConf
 import com.zaneschepke.wireguardautotunnel.ui.common.button.surface.SurfaceSelectionGroupButton
 import com.zaneschepke.wireguardautotunnel.ui.screens.main.autotunnel.components.MobileDataTunnelItem
+import com.zaneschepke.wireguardautotunnel.ui.screens.main.autotunnel.components.PingRestartItem
 import com.zaneschepke.wireguardautotunnel.ui.screens.main.autotunnel.components.WifiTunnelItem
 import com.zaneschepke.wireguardautotunnel.ui.screens.main.autotunnel.components.ethernetTunnelItem
 import com.zaneschepke.wireguardautotunnel.viewmodel.AppViewModel
@@ -45,6 +41,9 @@ fun TunnelAutoTunnelScreen(
         SurfaceSelectionGroupButton(
             items =
                 buildList {
+                    if (appSettings.isPingEnabled) {
+                        add(PingRestartItem(tunnelConf, viewModel))
+                    }
                     add(MobileDataTunnelItem(tunnelConf, viewModel))
                     add(ethernetTunnelItem(tunnelConf, viewModel))
                     add(

app/src/main/java/com/zaneschepke/wireguardautotunnel/ui/screens/main/autotunnel/components/PingRestartItem.kt

@@ -1,4 +1,4 @@
-package com.zaneschepke.wireguardautotunnel.ui.screens.main.tunneloptions.components
+package com.zaneschepke.wireguardautotunnel.ui.screens.main.autotunnel.components
 
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.outlined.NetworkPing
@@ -27,10 +27,10 @@ fun PingRestartItem(tunnelConf: TunnelConf, viewModel: AppViewModel): SelectionI
         },
         trailing = {
             ScaledSwitch(
-                checked = tunnelConf.isPingEnabled,
-                onClick = { viewModel.handleEvent(AppEvent.TogglePingTunnelEnabled(tunnelConf)) },
+                checked = tunnelConf.restartOnPingFailure,
+                onClick = { viewModel.handleEvent(AppEvent.ToggleRestartOnPingFailure(tunnelConf)) },
             )
         },
-        onClick = { viewModel.handleEvent(AppEvent.TogglePingTunnelEnabled(tunnelConf)) },
+        onClick = { viewModel.handleEvent(AppEvent.ToggleRestartOnPingFailure(tunnelConf)) },
     )
 }

app/src/main/java/com/zaneschepke/wireguardautotunnel/ui/screens/main/autotunnel/components/WifiTunnelItem.kt

@@ -1,10 +1,6 @@
 package com.zaneschepke.wireguardautotunnel.ui.screens.main.autotunnel.components
 
-import androidx.compose.foundation.layout.Arrangement
-import androidx.compose.foundation.layout.Row
-import androidx.compose.foundation.layout.fillMaxWidth
-import androidx.compose.foundation.layout.padding
-import androidx.compose.foundation.layout.size
+import androidx.compose.foundation.layout.*
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.outlined.Security
 import androidx.compose.material3.Icon

app/src/main/java/com/zaneschepke/wireguardautotunnel/ui/screens/main/components/TunnelImportSheet.kt

@@ -5,18 +5,8 @@ import androidx.compose.foundation.layout.Row
 import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.padding
 import androidx.compose.material.icons.Icons
-import androidx.compose.material.icons.filled.ContentPasteGo
-import androidx.compose.material.icons.filled.Create
-import androidx.compose.material.icons.filled.FileOpen
-import androidx.compose.material.icons.filled.Link
-import androidx.compose.material.icons.filled.QrCode
-import androidx.compose.material3.ExperimentalMaterial3Api
-import androidx.compose.material3.HorizontalDivider
-import androidx.compose.material3.Icon
-import androidx.compose.material3.MaterialTheme
-import androidx.compose.material3.ModalBottomSheet
-import androidx.compose.material3.Text
-import androidx.compose.material3.rememberModalBottomSheetState
+import androidx.compose.material.icons.filled.*
+import androidx.compose.material3.*
 import androidx.compose.runtime.Composable
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.platform.LocalContext

app/src/main/java/com/zaneschepke/wireguardautotunnel/ui/screens/main/components/TunnelList.kt

@@ -69,6 +69,7 @@ fun TunnelList(
                 isSelected = selected,
                 tunnel = tunnel,
                 tunnelState = tunnelState,
+                appSettings = appUiState.appSettings,
                 onTvClick = {
                     navController.navigate(Route.TunnelOptions(tunnel.id))
                     viewModel.handleEvent(AppEvent.ClearSelectedTunnels)
@@ -78,6 +79,7 @@ fun TunnelList(
                 },
                 onSwitchClick = { checked -> onToggleTunnel(tunnel, checked) },
                 isTv = isTv,
+                showDetailedStats = appUiState.appState.showDetailedPingStats,
                 modifier =
                     if (!isTv)
                         Modifier.combinedClickable(

app/src/main/java/com/zaneschepke/wireguardautotunnel/ui/screens/main/components/TunnelRowItem.kt

@@ -4,11 +4,7 @@ import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Row
 import androidx.compose.foundation.layout.size
 import androidx.compose.material.icons.Icons
-import androidx.compose.material.icons.rounded.Circle
-import androidx.compose.material.icons.rounded.Settings
-import androidx.compose.material.icons.rounded.SettingsEthernet
-import androidx.compose.material.icons.rounded.Smartphone
-import androidx.compose.material.icons.rounded.Star
+import androidx.compose.material.icons.rounded.*
 import androidx.compose.material3.Checkbox
 import androidx.compose.material3.Icon
 import androidx.compose.material3.IconButton
@@ -24,6 +20,7 @@ import androidx.compose.ui.semantics.semantics
 import androidx.compose.ui.unit.dp
 import com.zaneschepke.wireguardautotunnel.R
 import com.zaneschepke.wireguardautotunnel.domain.enums.TunnelStatus
+import com.zaneschepke.wireguardautotunnel.domain.model.AppSettings
 import com.zaneschepke.wireguardautotunnel.domain.model.TunnelConf
 import com.zaneschepke.wireguardautotunnel.domain.state.TunnelState
 import com.zaneschepke.wireguardautotunnel.ui.common.ExpandingRowListItem
@@ -36,10 +33,12 @@ fun TunnelRowItem(
     isSelected: Boolean,
     tunnel: TunnelConf,
     tunnelState: TunnelState,
+    appSettings: AppSettings,
     onTvClick: () -> Unit,
     onToggleSelectedTunnel: (TunnelConf) -> Unit,
     onSwitchClick: (Boolean) -> Unit,
     isTv: Boolean,
+    showDetailedStats: Boolean,
     modifier: Modifier = Modifier,
 ) {
     val context = LocalContext.current
@@ -113,7 +112,12 @@ fun TunnelRowItem(
         text = tunnel.tunName,
         expanded = {
             if (tunnelState.status != TunnelStatus.Down) {
-                TunnelStatisticsRow(tunnelState.statistics, tunnel)
+                TunnelStatisticsRow(
+                    tunnelState,
+                    tunnel,
+                    appSettings.isPingEnabled,
+                    showDetailedStats,
+                )
             }
         },
         trailing = {

app/src/main/java/com/zaneschepke/wireguardautotunnel/ui/screens/main/components/TunnelStatisticsRow.kt

@@ -4,106 +4,209 @@ import androidx.compose.animation.AnimatedVisibility
 import androidx.compose.foundation.layout.*
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Text
-import androidx.compose.runtime.Composable
-import androidx.compose.runtime.derivedStateOf
-import androidx.compose.runtime.getValue
-import androidx.compose.runtime.remember
+import androidx.compose.runtime.*
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.unit.dp
 import com.zaneschepke.wireguardautotunnel.R
 import com.zaneschepke.wireguardautotunnel.domain.model.TunnelConf
-import com.zaneschepke.wireguardautotunnel.domain.state.TunnelStatistics
+import com.zaneschepke.wireguardautotunnel.domain.state.TunnelState
 import com.zaneschepke.wireguardautotunnel.util.NumberUtils
 import com.zaneschepke.wireguardautotunnel.util.extensions.toThreeDecimalPlaceString
 
 @Composable
-fun TunnelStatisticsRow(statistics: TunnelStatistics?, tunnelConf: TunnelConf) {
-    val config = TunnelConf.configFromAmQuick(tunnelConf.wgQuick)
+fun TunnelStatisticsRow(
+    tunnelState: TunnelState,
+    tunnelConf: TunnelConf,
+    pingEnabled: Boolean,
+    showDetailedStats: Boolean,
+) {
+    val config = remember(tunnelConf) { TunnelConf.configFromAmQuick(tunnelConf.wgQuick) }
+    val peerText = stringResource(R.string.peer)
+    val handshakeText = stringResource(R.string.handshake)
+    val endpointText = stringResource(R.string.endpoint)
+    val neverText = stringResource(R.string.never)
+    val textStyle = MaterialTheme.typography.bodySmall
+    val textColor = MaterialTheme.colorScheme.outline
+
     Column(
         modifier = Modifier.fillMaxWidth().padding(start = 45.dp, bottom = 10.dp, end = 10.dp),
-        verticalArrangement = Arrangement.spacedBy(10.dp, Alignment.CenterVertically),
+        verticalArrangement = Arrangement.spacedBy(10.dp),
         horizontalAlignment = Alignment.Start,
     ) {
-        config.peers.forEach { peer ->
-            val peerId = remember { peer.publicKey.toBase64().subSequence(0, 3).toString() + "***" }
-            val endpoint =
-                remember(statistics) { statistics?.peerStats(peer.publicKey)?.resolvedEndpoint }
-            val peerRxMB by
-                remember(statistics) {
-                    derivedStateOf {
-                        statistics
-                            ?.peerStats(peer.publicKey)
-                            ?.rxBytes
-                            ?.let { NumberUtils.bytesToMB(it) }
-                            ?.toThreeDecimalPlaceString()
+        config.peers.forEachIndexed { index, peer ->
+            key(peer.publicKey.toBase64()) { // Key by peer ID to skip recomposition if unchanged
+                val peerStats =
+                    remember(tunnelState.statistics, peer, tunnelConf) {
+                        tunnelState.statistics?.peerStats(peer.publicKey)
                     }
-                }
-            val peerTxMB by
-                remember(statistics) {
-                    derivedStateOf {
-                        statistics
-                            ?.peerStats(peer.publicKey)
-                            ?.txBytes
-                            ?.let { NumberUtils.bytesToMB(it) }
-                            ?.toThreeDecimalPlaceString()
+                val peerId =
+                    remember(peer) {
+                        peer.publicKey.toBase64().subSequence(0, 3).toString() + "***"
                     }
-                }
-            val handshake by
-                remember(statistics) {
-                    derivedStateOf {
-                        statistics?.peerStats(peer.publicKey)?.latestHandshakeEpochMillis?.let {
-                            if (it == 0L) {
-                                null
-                            } else {
-                                "${NumberUtils.getSecondsBetweenTimestampAndNow(it)}"
+                val endpoint by
+                    remember(peerStats) { derivedStateOf { peerStats?.resolvedEndpoint } }
+                val peerRxMB by
+                    remember(peerStats) {
+                        derivedStateOf {
+                            peerStats
+                                ?.rxBytes
+                                ?.let { NumberUtils.bytesToMB(it) }
+                                ?.toThreeDecimalPlaceString() ?: "0.00"
+                        }
+                    }
+                val peerTxMB by
+                    remember(peerStats) {
+                        derivedStateOf {
+                            peerStats
+                                ?.txBytes
+                                ?.let { NumberUtils.bytesToMB(it) }
+                                ?.toThreeDecimalPlaceString() ?: "0.00"
+                        }
+                    }
+                val handshake by
+                    remember(peerStats) {
+                        derivedStateOf {
+                            peerStats?.latestHandshakeEpochMillis?.let {
+                                if (it == 0L) null
+                                else NumberUtils.getSecondsBetweenTimestampAndNow(it).toString()
                             }
                         }
                     }
-                }
-            Row(
-                verticalAlignment = Alignment.CenterVertically,
-                horizontalArrangement = Arrangement.spacedBy(16.dp, Alignment.Start),
-            ) {
-                Text(
-                    stringResource(R.string.peer).lowercase() + ": $peerId",
-                    style = MaterialTheme.typography.bodySmall,
-                    color = MaterialTheme.colorScheme.outline,
-                )
-                Text(
-                    stringResource(R.string.handshake) +
-                        ": ${if(handshake == null) stringResource(R.string.never) else handshake + " " + stringResource(R.string.sec)}",
-                    style = MaterialTheme.typography.bodySmall,
-                    color = MaterialTheme.colorScheme.outline,
-                )
-            }
-            Row(
-                verticalAlignment = Alignment.CenterVertically,
-                horizontalArrangement = Arrangement.spacedBy(16.dp, Alignment.Start),
-            ) {
-                Text(
-                    "rx: ${peerRxMB ?: 0.00} MB",
-                    style = MaterialTheme.typography.bodySmall,
-                    color = MaterialTheme.colorScheme.outline,
-                )
-                Text(
-                    "tx: ${peerTxMB ?: 0.00} MB",
-                    style = MaterialTheme.typography.bodySmall,
-                    color = MaterialTheme.colorScheme.outline,
-                )
-            }
-            if (endpoint != null) {
-                AnimatedVisibility(visible = true) {
+                val pingState by
+                    remember(tunnelState.pingStates) {
+                        derivedStateOf {
+                            tunnelState.pingStates?.getOrDefault(peer.publicKey, null)
+                        }
+                    }
+                val lastPingedSeconds by
+                    remember(peerStats) {
+                        derivedStateOf {
+                            pingState?.lastSuccessfulPingMillis?.let {
+                                NumberUtils.getSecondsBetweenTimestampAndNow(it)
+                            }
+                        }
+                    }
+
+                // Group peer stats in a column with internal spacing
+                Column(verticalArrangement = Arrangement.spacedBy(4.dp)) {
                     Row(
                         verticalAlignment = Alignment.CenterVertically,
-                        horizontalArrangement = Arrangement.spacedBy(16.dp, Alignment.Start),
+                        horizontalArrangement = Arrangement.spacedBy(16.dp),
+                    ) {
+                        Text("$peerText: $peerId", style = textStyle, color = textColor)
+                        Text(
+                            "$handshakeText: ${handshake?.let { stringResource(R.string.sec_ago_template, it)} ?: neverText}",
+                            style = textStyle,
+                            color = textColor,
+                        )
+                    }
+                    Row(
+                        verticalAlignment = Alignment.CenterVertically,
+                        horizontalArrangement = Arrangement.spacedBy(16.dp),
                     ) {
                         Text(
-                            stringResource(R.string.endpoint).lowercase() + ": $endpoint",
-                            style = MaterialTheme.typography.bodySmall,
-                            color = MaterialTheme.colorScheme.outline,
+                            stringResource(R.string.rx_template, peerRxMB),
+                            style = textStyle,
+                            color = textColor,
                         )
+                        Text(
+                            stringResource(R.string.tx_template, peerTxMB),
+                            style = textStyle,
+                            color = textColor,
+                        )
+                    }
+                    AnimatedVisibility(visible = endpoint != null) {
+                        Row(
+                            verticalAlignment = Alignment.CenterVertically,
+                            horizontalArrangement = Arrangement.spacedBy(16.dp),
+                        ) {
+                            Text("$endpointText: $endpoint", style = textStyle, color = textColor)
+                        }
+                    }
+                    AnimatedVisibility(visible = pingState != null && pingEnabled) {
+                        pingState?.let {
+                            Column(verticalArrangement = Arrangement.spacedBy(4.dp)) {
+                                Row(
+                                    verticalAlignment = Alignment.CenterVertically,
+                                    horizontalArrangement = Arrangement.spacedBy(16.dp),
+                                ) {
+                                    Text(
+                                        stringResource(
+                                            R.string.reachable_template,
+                                            stringResource(
+                                                if (it.isReachable) R.string._true
+                                                else R.string._false
+                                            ),
+                                        ),
+                                        style = textStyle,
+                                        color = textColor,
+                                    )
+                                    Text(
+                                        stringResource(
+                                            R.string.ping_target_template,
+                                            it.pingTarget,
+                                        ),
+                                        style = textStyle,
+                                        color = textColor,
+                                    )
+                                }
+                                if (showDetailedStats) {
+                                    Row(
+                                        verticalAlignment = Alignment.CenterVertically,
+                                        horizontalArrangement = Arrangement.spacedBy(16.dp),
+                                    ) {
+                                        Text(
+                                            stringResource(R.string.latency_template, it.rttAvg),
+                                            style = textStyle,
+                                            color = textColor,
+                                        )
+                                        Text(
+                                            stringResource(R.string.jitter_template, it.rttStddev),
+                                            style = textStyle,
+                                            color = textColor,
+                                        )
+                                    }
+                                    Row(
+                                        verticalAlignment = Alignment.CenterVertically,
+                                        horizontalArrangement = Arrangement.spacedBy(16.dp),
+                                    ) {
+                                        Text(
+                                            stringResource(
+                                                R.string.packets_sent_template,
+                                                it.transmitted,
+                                            ),
+                                            style = textStyle,
+                                            color = textColor,
+                                        )
+                                        Text(
+                                            stringResource(
+                                                R.string.packet_loss_template,
+                                                it.packetLoss,
+                                            ),
+                                            style = textStyle,
+                                            color = textColor,
+                                        )
+                                    }
+                                    Row(
+                                        verticalAlignment = Alignment.CenterVertically,
+                                        horizontalArrangement = Arrangement.spacedBy(16.dp),
+                                    ) {
+                                        Text(
+                                            stringResource(
+                                                R.string.ping_success_template,
+                                                lastPingedSeconds?.let { sec ->
+                                                    stringResource(R.string.sec_ago_template, sec)
+                                                } ?: neverText,
+                                            ),
+                                            style = textStyle,
+                                            color = textColor,
+                                        )
+                                    }
+                                }
+                            }
+                        }
                     }
                 }
             }

app/src/main/java/com/zaneschepke/wireguardautotunnel/ui/screens/main/components/UrlImportDialog.kt

@@ -7,11 +7,7 @@ import androidx.compose.material3.AlertDialog
 import androidx.compose.material3.OutlinedTextField
 import androidx.compose.material3.Text
 import androidx.compose.material3.TextButton
-import androidx.compose.runtime.Composable
-import androidx.compose.runtime.getValue
-import androidx.compose.runtime.mutableStateOf
-import androidx.compose.runtime.remember
-import androidx.compose.runtime.setValue
+import androidx.compose.runtime.*
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.unit.dp

app/src/main/java/com/zaneschepke/wireguardautotunnel/ui/screens/main/config/components/InterfaceDropdown.kt

@@ -5,12 +5,7 @@ import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.size
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.rounded.MoreVert
-import androidx.compose.material3.DropdownMenu
-import androidx.compose.material3.DropdownMenuItem
-import androidx.compose.material3.Icon
-import androidx.compose.material3.IconButton
-import androidx.compose.material3.MaterialTheme
-import androidx.compose.material3.Text
+import androidx.compose.material3.*
 import androidx.compose.runtime.Composable
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.draw.shadow

app/src/main/java/com/zaneschepke/wireguardautotunnel/ui/screens/main/config/components/InterfaceFields.kt

@@ -9,11 +9,7 @@ import androidx.compose.foundation.text.KeyboardOptions
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.rounded.ContentCopy
 import androidx.compose.material.icons.rounded.Refresh
-import androidx.compose.material3.Icon
-import androidx.compose.material3.IconButton
-import androidx.compose.material3.MaterialTheme
-import androidx.compose.material3.OutlinedTextField
-import androidx.compose.material3.Text
+import androidx.compose.material3.*
 import androidx.compose.runtime.Composable
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.platform.LocalSoftwareKeyboardController

app/src/main/java/com/zaneschepke/wireguardautotunnel/ui/screens/main/config/components/InterfaceSection.kt

@@ -1,19 +1,11 @@
 package com.zaneschepke.wireguardautotunnel.ui.screens.main.config.components
 
 import androidx.compose.foundation.focusGroup
-import androidx.compose.foundation.layout.Arrangement
-import androidx.compose.foundation.layout.Column
-import androidx.compose.foundation.layout.Row
-import androidx.compose.foundation.layout.fillMaxWidth
-import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.*
 import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Surface
-import androidx.compose.runtime.Composable
-import androidx.compose.runtime.getValue
-import androidx.compose.runtime.mutableStateOf
-import androidx.compose.runtime.remember
-import androidx.compose.runtime.setValue
+import androidx.compose.runtime.*
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.res.stringResource

app/src/main/java/com/zaneschepke/wireguardautotunnel/ui/screens/main/config/components/PeersSection.kt

@@ -2,28 +2,13 @@ package com.zaneschepke.wireguardautotunnel.ui.screens.main.config.components
 
 import androidx.compose.foundation.background
 import androidx.compose.foundation.focusGroup
-import androidx.compose.foundation.layout.Arrangement
-import androidx.compose.foundation.layout.Column
-import androidx.compose.foundation.layout.Row
-import androidx.compose.foundation.layout.fillMaxWidth
-import androidx.compose.foundation.layout.padding
-import androidx.compose.foundation.layout.size
+import androidx.compose.foundation.layout.*
 import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.rounded.Delete
 import androidx.compose.material.icons.rounded.MoreVert
-import androidx.compose.material3.DropdownMenu
-import androidx.compose.material3.DropdownMenuItem
-import androidx.compose.material3.Icon
-import androidx.compose.material3.IconButton
-import androidx.compose.material3.MaterialTheme
-import androidx.compose.material3.Surface
-import androidx.compose.material3.Text
-import androidx.compose.runtime.Composable
-import androidx.compose.runtime.getValue
-import androidx.compose.runtime.mutableStateOf
-import androidx.compose.runtime.remember
-import androidx.compose.runtime.setValue
+import androidx.compose.material3.*
+import androidx.compose.runtime.*
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.draw.shadow

app/src/main/java/com/zaneschepke/wireguardautotunnel/ui/screens/main/splittunnel/SplitTunnelViewModel.kt

@@ -18,11 +18,7 @@ import dagger.hilt.android.qualifiers.ApplicationContext
 import java.text.Collator
 import java.util.*
 import javax.inject.Inject
-import kotlinx.coroutines.flow.MutableStateFlow
-import kotlinx.coroutines.flow.SharingStarted
-import kotlinx.coroutines.flow.StateFlow
-import kotlinx.coroutines.flow.stateIn
-import kotlinx.coroutines.flow.update
+import kotlinx.coroutines.flow.*
 import kotlinx.coroutines.launch
 
 @HiltViewModel

app/src/main/java/com/zaneschepke/wireguardautotunnel/ui/screens/main/splittunnel/components/AppListItem.kt

@@ -2,11 +2,7 @@ package com.zaneschepke.wireguardautotunnel.ui.screens.main.splittunnel.componen
 
 import android.content.pm.PackageManager
 import androidx.compose.foundation.Image
-import androidx.compose.foundation.layout.Arrangement
-import androidx.compose.foundation.layout.Row
-import androidx.compose.foundation.layout.fillMaxWidth
-import androidx.compose.foundation.layout.padding
-import androidx.compose.foundation.layout.size
+import androidx.compose.foundation.layout.*
 import androidx.compose.material3.Checkbox
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.remember

app/src/main/java/com/zaneschepke/wireguardautotunnel/ui/screens/main/splittunnel/components/AppListSection.kt

@@ -1,12 +1,7 @@
 package com.zaneschepke.wireguardautotunnel.ui.screens.main.splittunnel.components
 
 import androidx.compose.foundation.interaction.MutableInteractionSource
-import androidx.compose.foundation.layout.Arrangement
-import androidx.compose.foundation.layout.Column
-import androidx.compose.foundation.layout.PaddingValues
-import androidx.compose.foundation.layout.fillMaxWidth
-import androidx.compose.foundation.layout.height
-import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.*
 import androidx.compose.foundation.lazy.LazyColumn
 import androidx.compose.foundation.lazy.items
 import androidx.compose.foundation.text.KeyboardActions

app/src/main/java/com/zaneschepke/wireguardautotunnel/ui/screens/main/splittunnel/components/SplitOptionsSelector.kt

@@ -8,12 +8,7 @@ import androidx.compose.foundation.layout.size
 import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.outlined.Check
-import androidx.compose.material3.Icon
-import androidx.compose.material3.MaterialTheme
-import androidx.compose.material3.MultiChoiceSegmentedButtonRow
-import androidx.compose.material3.SegmentedButton
-import androidx.compose.material3.SegmentedButtonDefaults
-import androidx.compose.material3.Text
+import androidx.compose.material3.*
 import androidx.compose.runtime.Composable
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.platform.LocalContext

app/src/main/java/com/zaneschepke/wireguardautotunnel/ui/screens/main/tunneloptions/TunnelOptionsScreen.kt

@@ -10,6 +10,7 @@ import androidx.compose.runtime.*
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.unit.dp
+import com.zaneschepke.wireguardautotunnel.domain.model.AppSettings
 import com.zaneschepke.wireguardautotunnel.domain.model.TunnelConf
 import com.zaneschepke.wireguardautotunnel.ui.common.SectionDivider
 import com.zaneschepke.wireguardautotunnel.ui.common.button.surface.SurfaceSelectionGroupButton
@@ -25,6 +26,7 @@ fun TunnelOptionsScreen(
     tunnelConf: TunnelConf,
     viewModel: AppViewModel,
     appViewState: AppViewState,
+    appSettings: AppSettings,
 ) {
     val isTv = LocalIsAndroidTV.current
 
@@ -36,7 +38,10 @@ fun TunnelOptionsScreen(
         // Show authorization prompt if needed
         if (showAuthPrompt) {
             AuthorizationPromptWrapper(
-                onDismiss = { showAuthPrompt = false },
+                onDismiss = {
+                    showAuthPrompt = false
+                    viewModel.handleEvent(AppEvent.SetShowModal(AppViewState.ModalType.NONE))
+                },
                 onSuccess = {
                     showAuthPrompt = false
                     isAuthorized = true
@@ -72,15 +77,9 @@ fun TunnelOptionsScreen(
                     SplitTunnelingItem(tunnelConf),
                 )
         )
-        SectionDivider()
-        SurfaceSelectionGroupButton(
-            items =
-                buildList {
-                    add(PingRestartItem(tunnelConf, viewModel))
-                    if (tunnelConf.isPingEnabled) {
-                        add(PingConfigItem(tunnelConf, viewModel))
-                    }
-                }
-        )
+        if (appSettings.isPingEnabled) {
+            SectionDivider()
+            SurfaceSelectionGroupButton(items = listOf(pingConfigItem(tunnelConf, viewModel)))
+        }
     }
 }

app/src/main/java/com/zaneschepke/wireguardautotunnel/ui/screens/main/tunneloptions/components/PingConfigItem.kt

@@ -1,72 +0,0 @@
-package com.zaneschepke.wireguardautotunnel.ui.screens.main.tunneloptions.components
-
-import androidx.compose.foundation.layout.Arrangement
-import androidx.compose.foundation.layout.Column
-import androidx.compose.foundation.text.KeyboardOptions
-import androidx.compose.runtime.Composable
-import androidx.compose.ui.res.stringResource
-import androidx.compose.ui.text.input.ImeAction
-import androidx.compose.ui.text.input.KeyboardType
-import androidx.compose.ui.unit.dp
-import com.zaneschepke.wireguardautotunnel.R
-import com.zaneschepke.wireguardautotunnel.domain.model.TunnelConf
-import com.zaneschepke.wireguardautotunnel.ui.common.button.surface.SelectionItem
-import com.zaneschepke.wireguardautotunnel.ui.common.config.SubmitConfigurationTextBox
-import com.zaneschepke.wireguardautotunnel.util.Constants
-import com.zaneschepke.wireguardautotunnel.util.extensions.isValidIpv4orIpv6Address
-import com.zaneschepke.wireguardautotunnel.viewmodel.AppViewModel
-import com.zaneschepke.wireguardautotunnel.viewmodel.event.AppEvent
-
-@Composable
-fun PingConfigItem(tunnelConf: TunnelConf, viewModel: AppViewModel): SelectionItem {
-    return SelectionItem(
-        title = {},
-        description = {
-            Column(verticalArrangement = Arrangement.spacedBy(16.dp)) {
-                SubmitConfigurationTextBox(
-                    value = tunnelConf.pingIp,
-                    label = stringResource(R.string.set_custom_ping_ip),
-                    hint = stringResource(R.string.default_ping_ip),
-                    isErrorValue = { it?.isNotBlank() == true && !it.isValidIpv4orIpv6Address() },
-                    onSubmit = { ip ->
-                        viewModel.handleEvent(AppEvent.SetTunnelPingIp(tunnelConf, ip))
-                    },
-                )
-                SubmitConfigurationTextBox(
-                    value = tunnelConf.pingInterval?.let { (it / 1000).toString() },
-                    label = stringResource(R.string.set_custom_ping_internal),
-                    hint =
-                        "(${stringResource(R.string.optional_default)} ${Constants.PING_INTERVAL / 1000})",
-                    keyboardOptions =
-                        KeyboardOptions(
-                            keyboardType = KeyboardType.Number,
-                            imeAction = ImeAction.Done,
-                        ),
-                    isErrorValue = {
-                        it?.toLongOrNull()?.let { value -> value >= Long.MAX_VALUE / 1000 } ?: false
-                    },
-                    onSubmit = { interval ->
-                        viewModel.handleEvent(AppEvent.SetTunnelPingInterval(tunnelConf, interval))
-                    },
-                )
-                SubmitConfigurationTextBox(
-                    value = tunnelConf.pingCooldown?.let { (it / 1000).toString() },
-                    label = stringResource(R.string.set_custom_ping_cooldown),
-                    hint =
-                        "(${stringResource(R.string.optional_default)} ${Constants.PING_COOLDOWN / 1000})",
-                    keyboardOptions =
-                        KeyboardOptions(
-                            keyboardType = KeyboardType.Number,
-                            imeAction = ImeAction.Done,
-                        ),
-                    isErrorValue = {
-                        it?.toLongOrNull()?.let { value -> value >= Long.MAX_VALUE / 1000 } ?: false
-                    },
-                    onSubmit = { cooldown ->
-                        viewModel.handleEvent(AppEvent.SetTunnelPingCooldown(tunnelConf, cooldown))
-                    },
-                )
-            }
-        },
-    )
-}

app/src/main/java/com/zaneschepke/wireguardautotunnel/ui/screens/main/tunneloptions/components/QrCodeDialog.kt

@@ -2,30 +2,13 @@ package com.zaneschepke.wireguardautotunnel.ui.screens.main.tunneloptions.compon
 
 import androidx.compose.foundation.Image
 import androidx.compose.foundation.background
-import androidx.compose.foundation.layout.Arrangement
-import androidx.compose.foundation.layout.Column
-import androidx.compose.foundation.layout.fillMaxWidth
-import androidx.compose.foundation.layout.padding
-import androidx.compose.foundation.layout.size
+import androidx.compose.foundation.layout.*
 import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.outlined.Check
 import androidx.compose.material.icons.outlined.VpnKey
-import androidx.compose.material3.AlertDialog
-import androidx.compose.material3.Icon
-import androidx.compose.material3.MaterialTheme
-import androidx.compose.material3.MultiChoiceSegmentedButtonRow
-import androidx.compose.material3.SegmentedButton
-import androidx.compose.material3.SegmentedButtonDefaults
-import androidx.compose.material3.Surface
-import androidx.compose.material3.Text
-import androidx.compose.material3.TextButton
-import androidx.compose.runtime.Composable
-import androidx.compose.runtime.DisposableEffect
-import androidx.compose.runtime.getValue
-import androidx.compose.runtime.mutableStateOf
-import androidx.compose.runtime.remember
-import androidx.compose.runtime.setValue
+import androidx.compose.material3.*
+import androidx.compose.runtime.*
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.Color
@@ -38,15 +21,7 @@ import com.zaneschepke.wireguardautotunnel.R
 import com.zaneschepke.wireguardautotunnel.domain.enums.ConfigType
 import com.zaneschepke.wireguardautotunnel.domain.model.TunnelConf
 import com.zaneschepke.wireguardautotunnel.util.extensions.setScreenBrightness
-import io.github.alexzhirkevich.qrose.options.QrBallShape
-import io.github.alexzhirkevich.qrose.options.QrBrush
-import io.github.alexzhirkevich.qrose.options.QrErrorCorrectionLevel
-import io.github.alexzhirkevich.qrose.options.QrFrameShape
-import io.github.alexzhirkevich.qrose.options.QrOptions
-import io.github.alexzhirkevich.qrose.options.QrPixelShape
-import io.github.alexzhirkevich.qrose.options.circle
-import io.github.alexzhirkevich.qrose.options.roundCorners
-import io.github.alexzhirkevich.qrose.options.solid
+import io.github.alexzhirkevich.qrose.options.*
 import io.github.alexzhirkevich.qrose.rememberQrCodePainter
 
 @Composable

app/src/main/java/com/zaneschepke/wireguardautotunnel/ui/screens/main/tunneloptions/components/pingConfigItem.kt

@@ -0,0 +1,40 @@
+package com.zaneschepke.wireguardautotunnel.ui.screens.main.tunneloptions.components
+
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Column
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.unit.dp
+import com.zaneschepke.wireguardautotunnel.R
+import com.zaneschepke.wireguardautotunnel.domain.model.TunnelConf
+import com.zaneschepke.wireguardautotunnel.ui.common.button.surface.SelectionItem
+import com.zaneschepke.wireguardautotunnel.ui.common.config.SubmitConfigurationTextBox
+import com.zaneschepke.wireguardautotunnel.util.extensions.isValidIpv4orIpv6Address
+import com.zaneschepke.wireguardautotunnel.viewmodel.AppViewModel
+import com.zaneschepke.wireguardautotunnel.viewmodel.event.AppEvent
+
+@Composable
+fun pingConfigItem(tunnelConf: TunnelConf, viewModel: AppViewModel): SelectionItem {
+    return SelectionItem(
+        title = {},
+        description = {
+            Column(verticalArrangement = Arrangement.spacedBy(16.dp)) {
+                SubmitConfigurationTextBox(
+                    value = tunnelConf.pingTarget,
+                    label = stringResource(R.string.set_custom_ping_target),
+                    hint = stringResource(R.string.ip_or_hostname),
+                    isErrorValue = {
+                        it?.isNotBlank() == true &&
+                            !it.isValidIpv4orIpv6Address() &&
+                            !android.util.Patterns.DOMAIN_NAME.matcher(it).matches()
+                    },
+                    supportingText = { Text(stringResource(R.string.ping_target_description)) },
+                    onSubmit = { ip ->
+                        viewModel.handleEvent(AppEvent.SetTunnelPingTarget(tunnelConf, ip))
+                    },
+                )
+            }
+        },
+    )
+}

app/src/main/java/com/zaneschepke/wireguardautotunnel/ui/screens/settings/SettingsScreen.kt

@@ -20,15 +20,7 @@ import com.zaneschepke.wireguardautotunnel.ui.common.button.surface.SurfaceSelec
 import com.zaneschepke.wireguardautotunnel.ui.navigation.LocalIsAndroidTV
 import com.zaneschepke.wireguardautotunnel.ui.navigation.LocalNavController
 import com.zaneschepke.wireguardautotunnel.ui.screens.autotunnel.components.AdvancedSettingsItem
-import com.zaneschepke.wireguardautotunnel.ui.screens.settings.components.AppShortcutsItem
-import com.zaneschepke.wireguardautotunnel.ui.screens.settings.components.KernelModeItem
-import com.zaneschepke.wireguardautotunnel.ui.screens.settings.components.LocalLoggingItem
-import com.zaneschepke.wireguardautotunnel.ui.screens.settings.components.PinLockItem
-import com.zaneschepke.wireguardautotunnel.ui.screens.settings.components.ReadLogsItem
-import com.zaneschepke.wireguardautotunnel.ui.screens.settings.components.RestartAtBootItem
-import com.zaneschepke.wireguardautotunnel.ui.screens.settings.components.alwaysOnVpnItem
-import com.zaneschepke.wireguardautotunnel.ui.screens.settings.components.appearanceItem
-import com.zaneschepke.wireguardautotunnel.ui.screens.settings.components.killSwitchItem
+import com.zaneschepke.wireguardautotunnel.ui.screens.settings.components.*
 import com.zaneschepke.wireguardautotunnel.ui.state.AppUiState
 import com.zaneschepke.wireguardautotunnel.viewmodel.AppViewModel
 
@@ -63,7 +55,8 @@ fun SettingsScreen(uiState: AppUiState, viewModel: AppViewModel) {
         SurfaceSelectionGroupButton(
             items =
                 buildList {
-                    add(AppShortcutsItem(uiState, viewModel))
+                    add(tunnelMonitoringItem())
+                    add(appShortcutsItem(uiState, viewModel))
                     if (!isTv) add(alwaysOnVpnItem(uiState, viewModel))
                     add(killSwitchItem())
                     add(RestartAtBootItem(uiState, viewModel))
@@ -81,7 +74,7 @@ fun SettingsScreen(uiState: AppUiState, viewModel: AppViewModel) {
         )
         SectionDivider()
         if (!isTv) {
-            SurfaceSelectionGroupButton(items = listOf(KernelModeItem(uiState, viewModel)))
+            SurfaceSelectionGroupButton(items = listOf(kernelModeItem(uiState, viewModel)))
             SectionDivider()
         }
         SurfaceSelectionGroupButton(

app/src/main/java/com/zaneschepke/wireguardautotunnel/ui/screens/settings/components/appShortcutItem.kt

@@ -15,7 +15,7 @@ import com.zaneschepke.wireguardautotunnel.viewmodel.AppViewModel
 import com.zaneschepke.wireguardautotunnel.viewmodel.event.AppEvent
 
 @Composable
-fun AppShortcutsItem(uiState: AppUiState, viewModel: AppViewModel): SelectionItem {
+fun appShortcutsItem(uiState: AppUiState, viewModel: AppViewModel): SelectionItem {
     return SelectionItem(
         leading = { Icon(Icons.Filled.AppShortcut, contentDescription = null) },
         trailing = {

app/src/main/java/com/zaneschepke/wireguardautotunnel/ui/screens/settings/components/kernelModeItem.kt

@@ -15,7 +15,7 @@ import com.zaneschepke.wireguardautotunnel.viewmodel.AppViewModel
 import com.zaneschepke.wireguardautotunnel.viewmodel.event.AppEvent
 
 @Composable
-fun KernelModeItem(uiState: AppUiState, viewModel: AppViewModel): SelectionItem {
+fun kernelModeItem(uiState: AppUiState, viewModel: AppViewModel): SelectionItem {
     return SelectionItem(
         leading = { Icon(Icons.Outlined.Code, contentDescription = null) },
         title = {

app/src/main/java/com/zaneschepke/wireguardautotunnel/ui/screens/settings/components/tunnelMonitoringItem.kt

@@ -0,0 +1,31 @@
+package com.zaneschepke.wireguardautotunnel.ui.screens.settings.components
+
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.outlined.MonitorHeart
+import androidx.compose.material3.Icon
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.res.stringResource
+import com.zaneschepke.wireguardautotunnel.R
+import com.zaneschepke.wireguardautotunnel.ui.Route
+import com.zaneschepke.wireguardautotunnel.ui.common.button.ForwardButton
+import com.zaneschepke.wireguardautotunnel.ui.common.button.surface.SelectionItem
+import com.zaneschepke.wireguardautotunnel.ui.navigation.LocalNavController
+
+@Composable
+fun tunnelMonitoringItem(): SelectionItem {
+    val navController = LocalNavController.current
+    return SelectionItem(
+        leading = { Icon(Icons.Outlined.MonitorHeart, null) },
+        trailing = { ForwardButton { navController.navigate(Route.TunnelMonitoring) } },
+        title = {
+            Text(
+                text = stringResource(R.string.tunnel_monitoring),
+                style =
+                    MaterialTheme.typography.bodyMedium.copy(MaterialTheme.colorScheme.onSurface),
+            )
+        },
+        onClick = { navController.navigate(Route.TunnelMonitoring) },
+    )
+}

app/src/main/java/com/zaneschepke/wireguardautotunnel/ui/screens/settings/logs/LogsScreen.kt

@@ -6,14 +6,7 @@ import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.lazy.rememberLazyListState
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Text
-import androidx.compose.runtime.Composable
-import androidx.compose.runtime.LaunchedEffect
-import androidx.compose.runtime.getValue
-import androidx.compose.runtime.mutableIntStateOf
-import androidx.compose.runtime.mutableStateOf
-import androidx.compose.runtime.remember
-import androidx.compose.runtime.setValue
-import androidx.compose.runtime.snapshotFlow
+import androidx.compose.runtime.*
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.res.stringResource

app/src/main/java/com/zaneschepke/wireguardautotunnel/ui/screens/settings/logs/components/LogsBottomSheet.kt

@@ -7,12 +7,7 @@ import androidx.compose.foundation.layout.padding
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.filled.Delete
 import androidx.compose.material.icons.filled.FolderZip
-import androidx.compose.material3.ExperimentalMaterial3Api
-import androidx.compose.material3.HorizontalDivider
-import androidx.compose.material3.Icon
-import androidx.compose.material3.MaterialTheme
-import androidx.compose.material3.ModalBottomSheet
-import androidx.compose.material3.Text
+import androidx.compose.material3.*
 import androidx.compose.runtime.Composable
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.res.stringResource

app/src/main/java/com/zaneschepke/wireguardautotunnel/ui/screens/settings/monitoring/TunnelMonitoringScreen.kt

@@ -0,0 +1,117 @@
+package com.zaneschepke.wireguardautotunnel.ui.screens.settings.monitoring
+
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.rememberScrollState
+import androidx.compose.foundation.verticalScroll
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.outlined.Replay
+import androidx.compose.material.icons.outlined.Timer
+import androidx.compose.material.icons.outlined.TimerOff
+import androidx.compose.material3.Icon
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Text
+import androidx.compose.runtime.*
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.unit.dp
+import com.zaneschepke.wireguardautotunnel.R
+import com.zaneschepke.wireguardautotunnel.ui.common.button.surface.SurfaceSelectionGroupButton
+import com.zaneschepke.wireguardautotunnel.ui.common.dropdown.LabelledNumberDropdown
+import com.zaneschepke.wireguardautotunnel.ui.screens.settings.monitoring.components.detailedPingStatsItem
+import com.zaneschepke.wireguardautotunnel.ui.screens.settings.monitoring.components.enablePingMonitoringItem
+import com.zaneschepke.wireguardautotunnel.ui.state.AppUiState
+import com.zaneschepke.wireguardautotunnel.viewmodel.AppViewModel
+import com.zaneschepke.wireguardautotunnel.viewmodel.event.AppEvent
+
+@Composable
+fun TunnelMonitoringScreen(uiState: AppUiState, viewModel: AppViewModel) {
+    val pingInterval: Int by
+        remember(uiState.appSettings) {
+            mutableIntStateOf(uiState.appSettings.tunnelPingIntervalSeconds)
+        }
+    val pingAttempts: Int by
+        remember(uiState.appSettings) { mutableIntStateOf(uiState.appSettings.tunnelPingAttempts) }
+    val pingTimeout: Int? by
+        remember(uiState.appSettings) {
+            mutableStateOf(uiState.appSettings.tunnelPingTimeoutSeconds)
+        }
+
+    Column(
+        horizontalAlignment = Alignment.Start,
+        verticalArrangement = Arrangement.spacedBy(12.dp, Alignment.Top),
+        modifier =
+            Modifier.fillMaxSize()
+                .verticalScroll(rememberScrollState())
+                .padding(vertical = 24.dp)
+                .padding(horizontal = 12.dp),
+    ) {
+        SurfaceSelectionGroupButton(listOf(enablePingMonitoringItem(uiState, viewModel)))
+        if (uiState.appSettings.isPingEnabled) {
+            LabelledNumberDropdown(
+                title = {
+                    Text(
+                        text = stringResource(R.string.tunnel_ping_interval),
+                        style =
+                            MaterialTheme.typography.bodyMedium.copy(
+                                color = MaterialTheme.colorScheme.onSurface
+                            ),
+                    )
+                },
+                leading = { Icon(Icons.Outlined.Timer, contentDescription = null) },
+                currentValue = pingInterval,
+                onSelected = { selected ->
+                    viewModel.handleEvent(AppEvent.SetPingInterval(selected!!))
+                },
+                options = (10..60).step(10).toList(),
+            )
+            LabelledNumberDropdown(
+                title = {
+                    Text(
+                        text = stringResource(R.string.attempts_per_interval),
+                        style =
+                            MaterialTheme.typography.bodyMedium.copy(
+                                color = MaterialTheme.colorScheme.onSurface
+                            ),
+                    )
+                },
+                leading = { Icon(Icons.Outlined.Replay, contentDescription = null) },
+                currentValue = pingAttempts,
+                onSelected = { selected ->
+                    viewModel.handleEvent(AppEvent.SetPingAttempts(selected!!))
+                },
+                options = (1..5).toList(),
+            )
+            LabelledNumberDropdown(
+                title = {
+                    Text(
+                        text = stringResource(R.string.ping_timeout),
+                        style =
+                            MaterialTheme.typography.bodyMedium.copy(
+                                color = MaterialTheme.colorScheme.onSurface
+                            ),
+                    )
+                },
+                leading = { Icon(Icons.Outlined.TimerOff, contentDescription = null) },
+                currentValue = pingTimeout,
+                description = {
+                    Text(
+                        text = stringResource(R.string.timeout_all_attempts),
+                        style =
+                            MaterialTheme.typography.bodySmall.copy(
+                                color = MaterialTheme.colorScheme.outline
+                            ),
+                    )
+                },
+                onSelected = { selected ->
+                    viewModel.handleEvent(AppEvent.SetPingTimeout(selected))
+                },
+                options = (10..20).toList() + null,
+            )
+            SurfaceSelectionGroupButton(listOf(detailedPingStatsItem(uiState, viewModel)))
+        }
+    }
+}

app/src/main/java/com/zaneschepke/wireguardautotunnel/ui/screens/settings/monitoring/components/detailedPingStatsItem.kt

@@ -0,0 +1,36 @@
+package com.zaneschepke.wireguardautotunnel.ui.screens.settings.monitoring.components
+
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.outlined.QueryStats
+import androidx.compose.material3.Icon
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.res.stringResource
+import com.zaneschepke.wireguardautotunnel.R
+import com.zaneschepke.wireguardautotunnel.ui.common.button.ScaledSwitch
+import com.zaneschepke.wireguardautotunnel.ui.common.button.surface.SelectionItem
+import com.zaneschepke.wireguardautotunnel.ui.state.AppUiState
+import com.zaneschepke.wireguardautotunnel.viewmodel.AppViewModel
+import com.zaneschepke.wireguardautotunnel.viewmodel.event.AppEvent
+
+@Composable
+fun detailedPingStatsItem(uiState: AppUiState, viewModel: AppViewModel): SelectionItem {
+    return SelectionItem(
+        leading = { Icon(Icons.Outlined.QueryStats, contentDescription = null) },
+        title = {
+            Text(
+                text = stringResource(R.string.display_detailed_ping_stats),
+                style =
+                    MaterialTheme.typography.bodyMedium.copy(MaterialTheme.colorScheme.onSurface),
+            )
+        },
+        trailing = {
+            ScaledSwitch(
+                checked = uiState.appState.showDetailedPingStats,
+                onClick = { viewModel.handleEvent(AppEvent.ToggleShowDetailedPingStats) },
+            )
+        },
+        onClick = { viewModel.handleEvent(AppEvent.ToggleShowDetailedPingStats) },
+    )
+}

app/src/main/java/com/zaneschepke/wireguardautotunnel/ui/screens/settings/monitoring/components/enablePingMonitoringItem.kt

@@ -0,0 +1,36 @@
+package com.zaneschepke.wireguardautotunnel.ui.screens.settings.monitoring.components
+
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.outlined.NetworkPing
+import androidx.compose.material3.Icon
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.res.stringResource
+import com.zaneschepke.wireguardautotunnel.R
+import com.zaneschepke.wireguardautotunnel.ui.common.button.ScaledSwitch
+import com.zaneschepke.wireguardautotunnel.ui.common.button.surface.SelectionItem
+import com.zaneschepke.wireguardautotunnel.ui.state.AppUiState
+import com.zaneschepke.wireguardautotunnel.viewmodel.AppViewModel
+import com.zaneschepke.wireguardautotunnel.viewmodel.event.AppEvent
+
+@Composable
+fun enablePingMonitoringItem(uiState: AppUiState, viewModel: AppViewModel): SelectionItem {
+    return SelectionItem(
+        leading = { Icon(Icons.Outlined.NetworkPing, contentDescription = null) },
+        trailing = {
+            ScaledSwitch(
+                checked = uiState.appSettings.isPingEnabled,
+                onClick = { viewModel.handleEvent(AppEvent.TogglePingMonitoring) },
+            )
+        },
+        title = {
+            Text(
+                text = stringResource(R.string.monitoring_ping),
+                style =
+                    MaterialTheme.typography.bodyMedium.copy(MaterialTheme.colorScheme.onSurface),
+            )
+        },
+        onClick = { viewModel.handleEvent(AppEvent.TogglePingMonitoring) },
+    )
+}

app/src/main/java/com/zaneschepke/wireguardautotunnel/ui/screens/support/SupportScreen.kt

@@ -12,12 +12,8 @@ import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.StrokeCap
 import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.res.stringResource
-import androidx.compose.ui.text.LinkAnnotation
-import androidx.compose.ui.text.SpanStyle
-import androidx.compose.ui.text.TextLinkStyles
-import androidx.compose.ui.text.buildAnnotatedString
+import androidx.compose.ui.text.*
 import androidx.compose.ui.text.style.TextDecoration
-import androidx.compose.ui.text.withLink
 import androidx.compose.ui.unit.dp
 import androidx.hilt.navigation.compose.hiltViewModel
 import androidx.lifecycle.compose.collectAsStateWithLifecycle

app/src/main/java/com/zaneschepke/wireguardautotunnel/ui/screens/support/components/GeneralSupportOptions.kt

@@ -1,9 +1,6 @@
 package com.zaneschepke.wireguardautotunnel.ui.screens.support.components
 
 import androidx.compose.material.icons.Icons
-import androidx.compose.material.icons.filled.Balance
-import androidx.compose.material.icons.filled.Book
-import androidx.compose.material.icons.filled.Policy
 import androidx.compose.material.icons.outlined.Balance
 import androidx.compose.material.icons.outlined.Book
 import androidx.compose.material.icons.outlined.Policy

app/src/main/java/com/zaneschepke/wireguardautotunnel/ui/screens/support/components/UpdateSection.kt

@@ -2,9 +2,7 @@ package com.zaneschepke.wireguardautotunnel.ui.screens.support.components
 
 import androidx.compose.foundation.layout.Column
 import androidx.compose.material.icons.Icons
-import androidx.compose.material.icons.filled.CloudDownload
 import androidx.compose.material.icons.outlined.CloudDownload
-import androidx.compose.material.icons.rounded.CloudDownload
 import androidx.compose.material3.Icon
 import androidx.compose.runtime.Composable
 import androidx.compose.ui.res.stringResource

app/src/main/java/com/zaneschepke/wireguardautotunnel/ui/screens/support/license/LicenseScreen.kt

@@ -5,12 +5,7 @@ import android.content.Context
 import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.material3.CircularProgressIndicator
-import androidx.compose.runtime.Composable
-import androidx.compose.runtime.LaunchedEffect
-import androidx.compose.runtime.getValue
-import androidx.compose.runtime.mutableStateOf
-import androidx.compose.runtime.remember
-import androidx.compose.runtime.setValue
+import androidx.compose.runtime.*
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.platform.LocalContext

app/src/main/java/com/zaneschepke/wireguardautotunnel/util/Constants.kt

@@ -27,9 +27,10 @@ object Constants {
     const val SUBSCRIPTION_TIMEOUT = 5_000L
 
     const val DEFAULT_PING_IP = "1.1.1.1"
-    const val PING_TIMEOUT = 5_000L
-    const val PING_INTERVAL = 60_000L
-    const val PING_COOLDOWN = PING_INTERVAL * 60 // one hour
+    const val PING_TIMEOUT: Int = 5_000
+
+    const val PING_ATTEMPTS: Int = 3
+    const val PING_INTERVAL = 30
 
     val amProperties = listOf("Jc", "Jmin", "Jmax", "S1", "S2", "H1", "H2", "H3", "H4")
     const val QR_CODE_NAME_PROPERTY = "# Name ="

app/src/main/java/com/zaneschepke/wireguardautotunnel/util/extensions/Extensions.kt

@@ -5,6 +5,8 @@ import com.zaneschepke.wireguardautotunnel.data.entity.TunnelConfig
 import com.zaneschepke.wireguardautotunnel.domain.model.TunnelConf
 import java.math.BigDecimal
 import java.text.DecimalFormat
+import kotlin.math.pow
+import kotlin.math.roundToInt
 
 fun BigDecimal.toThreeDecimalPlaceString(): String {
     val df = DecimalFormat("#.###")
@@ -28,3 +30,12 @@ fun <T> MutableList<T>.addAllUnique(elements: Collection<T>, comparator: (T, T)
 fun <T, R : Comparable<R>> List<T>.isSortedBy(selector: (T) -> R): Boolean {
     return zipWithNext().all { (a, b) -> selector(a) <= selector(b) }
 }
+
+fun Int.toMillis(): Long {
+    return this * 1_000L
+}
+
+fun Double.round(decimals: Int): Double {
+    val factor = 10.0.pow(decimals)
+    return (this * factor).roundToInt() / factor
+}

app/src/main/java/com/zaneschepke/wireguardautotunnel/util/extensions/TunnelExtensions.kt

@@ -2,17 +2,15 @@ package com.zaneschepke.wireguardautotunnel.util.extensions
 
 import androidx.compose.ui.graphics.Color
 import com.wireguard.android.backend.BackendException
-import com.wireguard.config.Peer
-import com.zaneschepke.wireguardautotunnel.domain.enums.BackendError
 import com.zaneschepke.wireguardautotunnel.domain.enums.BackendState
 import com.zaneschepke.wireguardautotunnel.domain.enums.HandshakeStatus
 import com.zaneschepke.wireguardautotunnel.domain.enums.TunnelStatus
+import com.zaneschepke.wireguardautotunnel.domain.events.BackendError
 import com.zaneschepke.wireguardautotunnel.domain.state.TunnelStatistics
 import com.zaneschepke.wireguardautotunnel.ui.theme.SilverTree
 import com.zaneschepke.wireguardautotunnel.ui.theme.Straw
 import com.zaneschepke.wireguardautotunnel.util.Constants
 import com.zaneschepke.wireguardautotunnel.util.NumberUtils
-import java.net.InetAddress
 import org.amnezia.awg.backend.Backend
 import org.amnezia.awg.backend.Tunnel
 import org.amnezia.awg.config.Config
@@ -40,18 +38,6 @@ fun TunnelStatistics.PeerStats.handshakeStatus(): HandshakeStatus {
     }
 }
 
-fun Peer.isReachable(): Boolean {
-    val host =
-        if (this.endpoint.isPresent) {
-            this.endpoint.get().host
-        } else {
-            Constants.DEFAULT_PING_IP
-        }
-    Timber.d("Checking reachability of peer: $host")
-    val reachable = InetAddress.getByName(host).isReachable(Constants.PING_TIMEOUT.toInt())
-    return reachable
-}
-
 fun TunnelStatistics?.asColor(): Color {
     return this?.mapPeerStats()
         ?.map { it.value?.handshakeStatus() }

app/src/main/java/com/zaneschepke/wireguardautotunnel/util/network/NetworkUtils.kt

@@ -0,0 +1,84 @@
+package com.zaneschepke.wireguardautotunnel.util.network
+
+import com.marsounjan.icmp4a.Icmp
+import com.marsounjan.icmp4a.Icmp4a
+import com.zaneschepke.wireguardautotunnel.util.extensions.round
+import java.io.IOException
+import java.time.Instant
+import kotlin.math.sqrt
+import kotlinx.coroutines.*
+import kotlinx.coroutines.flow.catch
+import kotlinx.coroutines.flow.collect
+import kotlinx.coroutines.flow.onEach
+import timber.log.Timber
+
+class NetworkUtils(private val ioDispatcher: CoroutineDispatcher) {
+
+    /**
+     * Performs a ping with stats, wrapped in a coroutine for async execution. Dynamically handles
+     * IPv4/ICMP or IPv6/ICMPv6 based on the host.
+     *
+     * @param host The host to ping (domain, IPv4, or IPv6 address).
+     * @param count Number of ping attempts.
+     * @param timeoutMillis Overall timeout in milliseconds for the entire operation.
+     * @return PingStats if successful, with isReachable set based on whether any packets were
+     *   received, and lastSuccessfulPingMillis set to the approximate epoch millis of the last
+     *   successful ping response.
+     * @throws IOException on failure (e.g., unknown host or other errors).
+     * @throws TimeoutCancellationException on timeout.
+     */
+    suspend fun pingWithStats(
+        host: String,
+        count: Int,
+        timeoutMillis: Long = (count * 2000L),
+    ): PingStats {
+        return withTimeout(timeoutMillis) {
+            withContext(ioDispatcher) {
+                val icmp = Icmp4a()
+                val stats = PingStats()
+                val rttList = mutableListOf<Double>()
+                var received = 0
+                var lastSuccessTime: Long? = null
+
+                icmp
+                    .pingInterval(host, count = count, intervalMillis = 500)
+                    .onEach { status ->
+                        when (val result = status.result) {
+                            is Icmp.PingResult.Success -> {
+                                received++
+                                rttList.add(result.ms.toDouble())
+                                lastSuccessTime = Instant.now().toEpochMilli()
+                            }
+                            is Icmp.PingResult.Failed -> {
+                                Timber.w("Ping failed with result: ${result.message}")
+                            }
+                        }
+                    }
+                    .catch {
+                        when (it) {
+                            is CancellationException -> Timber.d("Ping completed")
+                            else -> throw it
+                        }
+                    }
+                    .collect()
+
+                if (rttList.isNotEmpty()) {
+                    stats.transmitted = count
+                    stats.received = received
+                    stats.packetLoss = ((count - received).toDouble().round(2) / count) * 100
+                    stats.rttMin = rttList.minOrNull()?.round(2) ?: 0.0
+                    stats.rttAvg = rttList.average().round(2)
+                    stats.rttMax = rttList.maxOrNull()?.round(2) ?: 0.0
+                    val mean = stats.rttAvg
+                    stats.rttStddev =
+                        sqrt(rttList.map { (it - mean) * (it - mean) }.average()).round(2)
+                    stats.isReachable = received > 0
+                    stats.lastSuccessfulPingMillis = lastSuccessTime
+                } else {
+                    stats.isReachable = false
+                }
+                stats
+            }
+        }
+    }
+}

app/src/main/java/com/zaneschepke/wireguardautotunnel/util/network/PingStats.kt

@@ -0,0 +1,26 @@
+package com.zaneschepke.wireguardautotunnel.util.network
+
+data class PingStats(
+    var transmitted: Int = 0,
+    var received: Int = 0,
+    var packetLoss: Double = 0.0, // percentage
+    var rttMin: Double = 0.0,
+    var rttAvg: Double = 0.0,
+    var rttMax: Double = 0.0,
+    var rttStddev: Double = 0.0,
+    var isReachable: Boolean = false,
+    var lastSuccessfulPingMillis: Long? = null,
+) {
+    fun handleOffline(): PingStats {
+        return copy(
+            transmitted = 0,
+            received = 0,
+            packetLoss = 0.0,
+            rttMin = 0.0,
+            rttAvg = 0.0,
+            rttMax = 0.0,
+            rttStddev = 0.0,
+            isReachable = false,
+        )
+    }
+}