import { describe, it, expect, beforeAll, afterAll } from 'vitest';
import {
  PlaywrightAutomationAdapter,
  FixtureServer,
} from 'packages/infrastructure/adapters/automation';
import { InMemorySessionRepository } from 'packages/infrastructure/repositories/InMemorySessionRepository';
import { MockAutomationEngineAdapter } from 'packages/infrastructure/adapters/automation/engine/MockAutomationEngineAdapter';
import { MockBrowserAutomationAdapter } from 'packages/infrastructure/adapters/automation/engine/MockBrowserAutomationAdapter';
import { StartAutomationSessionUseCase } from 'packages/application/use-cases/StartAutomationSessionUseCase';
import { StepId } from 'packages/domain/value-objects/StepId';

describe('Workflow – hosted session end-to-end (fixture-backed)', () => {
  let server: FixtureServer;
  let adapter: PlaywrightAutomationAdapter;
  let baseUrl: string;

  beforeAll(async () => {
    server = new FixtureServer();
    const info = await server.start();
    baseUrl = info.url;

    adapter = new PlaywrightAutomationAdapter(
      {
        headless: true,
        timeout: 10_000,
        baseUrl,
        mode: 'mock',
      },
    );
    const connectResult = await adapter.connect();
    expect(connectResult.success).toBe(true);
  });

  afterAll(async () => {
    await adapter.disconnect();
    await server.stop();
  });

  function createFixtureEngine() {
    const repository = new InMemorySessionRepository();
    const engine = new MockAutomationEngineAdapter(adapter, repository);
    const useCase = new StartAutomationSessionUseCase(engine, adapter, repository);
    return { repository, engine, useCase };
  }

  it('runs 1–17 from use case and stops automation at manual Track Conditions (STOPPED_AT_STEP_18)', async () => {
    const { repository, engine, useCase } = createFixtureEngine();

    const config: any = {
      sessionName: 'Fixture E2E – full workflow',
      trackId: 'spa',
      carIds: ['dallara-f3'],
    };

    const dto = await useCase.execute(config);

    expect(dto.state).toBe('PENDING');
    expect(dto.currentStep).toBe(1);

    await engine.executeStep(StepId.create(1), config);

    const deadline = Date.now() + 60_000;
    let finalSession = null;

    // Poll repository until automation loop completes
    // MockAutomationEngineAdapter drives the step orchestrator internally.
    // Session should end in STOPPED_AT_STEP_18 after completing automated step 17.
    // eslint-disable-next-line no-constant-condition
    while (true) {
      const sessions = await repository.findAll();
      finalSession = sessions[0] ?? null;

      if (finalSession && finalSession.state.isStoppedAtStep18()) {
        break;
      }

      if (Date.now() > deadline) {
        throw new Error('Timed out waiting for automation workflow to complete');
      }

      await new Promise((resolve) => setTimeout(resolve, 250));
    }

    expect(finalSession).not.toBeNull();
    expect(finalSession!.state.isStoppedAtStep18()).toBe(true);
    expect(finalSession!.currentStep.value).toBe(17);
    expect(finalSession!.startedAt).toBeInstanceOf(Date);
    expect(finalSession!.completedAt).toBeInstanceOf(Date);
    expect(finalSession!.errorMessage).toBeUndefined();
  });

  it('marks session as FAILED on mid-flow automation error with diagnostics', async () => {
    const repository = new InMemorySessionRepository();
    const failingAdapter = new MockBrowserAutomationAdapter({
      simulateFailures: true,
      failureRate: 1.0,
    });
    await failingAdapter.connect();

    const engine = new MockAutomationEngineAdapter(
      failingAdapter as any,
      repository,
    );
    const useCase = new StartAutomationSessionUseCase(
      engine,
      failingAdapter as any,
      repository,
    );

    const config: any = {
      sessionName: 'Fixture E2E – failure workflow',
      trackId: 'spa',
      carIds: ['dallara-f3'],
    };

    const dto = await useCase.execute(config);

    expect(dto.state).toBe('PENDING');
    expect(dto.currentStep).toBe(1);

    await engine.executeStep(StepId.create(1), config);

    const deadline = Date.now() + 30_000;
    let finalSession = null;

    // Poll for failure state
    // eslint-disable-next-line no-constant-condition
    while (true) {
      const sessions = await repository.findAll();
      finalSession = sessions[0] ?? null;

      if (finalSession && finalSession.state.isFailed()) {
        break;
      }

      if (Date.now() > deadline) {
        throw new Error('Timed out waiting for automation workflow to fail');
      }

      await new Promise((resolve) => setTimeout(resolve, 200));
    }

    await failingAdapter.disconnect();

    expect(finalSession).not.toBeNull();
    expect(finalSession!.state.isFailed()).toBe(true);
    expect(finalSession!.errorMessage).toBeDefined();
  });
});