// SiYuan - Refactor your thinking
// Copyright (c) 2020-present, b3log.org
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <https://www.gnu.org/licenses/>.

package tools

import (
	"fmt"
	"time"

	"github.com/siyuan-note/siyuan/kernel/util"
)

var SystemTool = &Tool{
	Name:        "system",
	Description: "System info. Actions: version(), current_time(), workspace().",
	InputSchema: ToolSchema{
		Type: "object",
		Properties: map[string]Property{
			"action": {Type: "string", Description: "Operation", Enum: []string{"version", "current_time", "workspace"}},
		},
		Required: []string{"action"},
	},
	Handler: systemHandler,
}

func init() {
	register(SystemTool)
}

func systemHandler(args map[string]interface{}) (CallToolResult, error) {
	action, _ := args["action"].(string)
	switch action {
	case "version":
		return systemVersion(args)
	case "current_time":
		return systemCurrentTime(args)
	case "workspace":
		return systemWorkspace(args)
	}
	return CallToolResult{
		Content: []ContentItem{{Type: "text", Text: "unknown action '" + action + "', expected one of: [version, current_time, workspace]"}},
		IsError: true,
	}, nil
}

func systemVersion(args map[string]interface{}) (CallToolResult, error) {
	return CallToolResult{Content: []ContentItem{{Type: "text", Text: util.Ver}}}, nil
}

func systemCurrentTime(args map[string]interface{}) (CallToolResult, error) {
	ms := util.CurrentTimeMillis()
	t := time.UnixMilli(ms)
	return CallToolResult{Content: []ContentItem{{Type: "text", Text: t.Format(time.RFC3339)}}}, nil
}

func systemWorkspace(args map[string]interface{}) (CallToolResult, error) {
	return CallToolResult{Content: []ContentItem{{Type: "text", Text: fmt.Sprintf("Workspace: %s\nVersion: %s\nContainer: %s", util.WorkspaceDir, util.Ver, util.Container)}}}, nil
}