create service to manage steam session

src/renderer/services/auth-user.service.ts

@@ -0,0 +1,31 @@
+import { ConfigurationService } from "./configuration.service";
+
+export class AuthUserService {
+
+    private static instance: AuthUserService;
+
+    private readonly configService: ConfigurationService;
+
+    private readonly STEAM_USERNAME_KEY = "STEAM-USERNAME";
+
+    public static getInstance(): AuthUserService{
+        if(!AuthUserService.instance){ AuthUserService.instance = new AuthUserService() }
+        return AuthUserService.instance;
+    }
+
+    private constructor(){
+        this.configService = ConfigurationService.getInstance();
+    }
+
+    public sessionExist(): boolean{
+        return !!this.configService.get(this.STEAM_USERNAME_KEY);
+    }
+
+    public setSteamSession(username: string, stay = true): void{
+        this.configService.set(this.STEAM_USERNAME_KEY, username, stay);
+    }
+
+    public getSteamUsername(): string{ return this.configService.get(this.STEAM_USERNAME_KEY); }
+
+    public deleteSteamSession(): void { this.configService.delete(this.STEAM_USERNAME_KEY); }
+}