import { IAuthenticationService } from '../ports/IAuthenticationService';
import { Result } from '../../shared/result/Result';
import { BrowserAuthenticationState } from '../../domain/value-objects/BrowserAuthenticationState';

/**
 * Use case for verifying browser shows authenticated page state.
 * Combines cookie validation with page content verification.
 */
export class VerifyAuthenticatedPageUseCase {
  constructor(
    private readonly authService: IAuthenticationService
  ) {}
  
  async execute(): Promise<Result<BrowserAuthenticationState>> {
    try {
      const result = await this.authService.verifyPageAuthentication();
      
      if (result.isErr()) {
        return Result.err(result.error);
      }
      
      const browserState = result.unwrap();
      
      // Log verification result
      if (browserState.isFullyAuthenticated()) {
        // Success case - no logging needed in use case
      } else if (browserState.requiresReauthentication()) {
        // Requires re-auth - caller should handle
      }
      
      return Result.ok(browserState);
    } catch (error) {
      const message = error instanceof Error ? error.message : String(error);
      return Result.err(new Error(`Page verification failed: ${message}`));
    }
  }
}