move automation out of core

apps/companion/main/automation/application/use-cases/ClearSessionUseCase.ts

@@ -0,0 +1,48 @@
+import { Result } from '@gridpilot/shared/result/Result';
+import type { AuthenticationServicePort } from '../ports/AuthenticationServicePort';
+import type { Logger } from '@core/shared/application';
+
+/**
+ * Use case for clearing the user's session (logout).
+ * 
+ * Removes stored browser context and cookies, effectively logging
+ * the user out. The next automation attempt will require re-authentication.
+ */
+export class ClearSessionUseCase {
+  constructor(
+    private readonly authService: AuthenticationServicePort,
+    private readonly logger: Logger, // Inject Logger
+  ) {}
+
+  /**
+   * Execute the session clearing.
+   * 
+   * @returns Result indicating success or failure
+   */
+  async execute(): Promise<Result<void>> {
+    this.logger.debug('Attempting to clear user session.', {
+      useCase: 'ClearSessionUseCase'
+    });
+    try {
+      const result = await this.authService.clearSession();
+
+      if (result.isOk()) {
+        this.logger.info('User session cleared successfully.', {
+          useCase: 'ClearSessionUseCase'
+        });
+      } else {
+        this.logger.warn('Failed to clear user session.', {
+          useCase: 'ClearSessionUseCase',
+          error: result.error,
+        });
+      }
+      return result;
+    } catch (error) {
+      const err = error instanceof Error ? error : new Error(String(error));
+      this.logger.error('Error clearing user session.', err, {
+        useCase: 'ClearSessionUseCase'
+      });
+      return Result.err(err);
+    }
+  }
+}