import { describe, it, expect, vi, type Mock } from 'vitest';
import { HandleAuthCallbackUseCase } from './HandleAuthCallbackUseCase';
import type { IdentityProviderPort } from '../ports/IdentityProviderPort';
import type { IdentitySessionPort } from '../ports/IdentitySessionPort';
import type { AuthCallbackCommandDTO } from '../dto/AuthCallbackCommandDTO';
import type { AuthenticatedUserDTO } from '../dto/AuthenticatedUserDTO';
import type { AuthSessionDTO } from '../dto/AuthSessionDTO';

describe('HandleAuthCallbackUseCase', () => {
  let provider: {
    completeAuth: Mock;
  };
  let sessionPort: {
    createSession: Mock;
    getCurrentSession: Mock;
    clearSession: Mock;
  };
  let useCase: HandleAuthCallbackUseCase;

  beforeEach(() => {
    provider = {
      completeAuth: vi.fn(),
    };
    sessionPort = {
      createSession: vi.fn(),
      getCurrentSession: vi.fn(),
      clearSession: vi.fn(),
    };

    useCase = new HandleAuthCallbackUseCase(
      provider as unknown as IdentityProviderPort,
      sessionPort as unknown as IdentitySessionPort,
    );
  });

  it('completes auth and creates a session', async () => {
    const command: AuthCallbackCommandDTO = {
      code: 'auth-code',
      state: 'state-123',
      redirectUri: 'https://app/callback',
    };

    const user: AuthenticatedUserDTO = {
      id: 'user-1',
      email: 'test@example.com',
      displayName: 'Test User',
    };

    const session: AuthSessionDTO = {
      user,
      issuedAt: Date.now(),
      expiresAt: Date.now() + 1000,
      token: 'session-token',
    };

    provider.completeAuth.mockResolvedValue(user);
    sessionPort.createSession.mockResolvedValue(session);

    const result = await useCase.execute(command);

    expect(provider.completeAuth).toHaveBeenCalledWith(command);
    expect(sessionPort.createSession).toHaveBeenCalledWith(user);
    expect(result).toEqual(session);
  });
});