import { INestApplication } from '@nestjs/common';
import { JwtService } from '@nestjs/jwt';
import { Test } from '@nestjs/testing';
import * as request from 'supertest';
import { configureApp } from '../src/app.setup';
import { AppModule } from '../src/app.module';
import { AiSimulationClient } from '../src/modules/simulations/ai-simulation.client';
import { PrismaService } from '../src/prisma/prisma.service';

describe('Simulations (e2e)', () => {
  let app: INestApplication;
  let jwtService: JwtService;
  let prisma: PrismaService;
  const execute = jest.fn();
  const getResult = jest.fn();

  async function signToken() {
    return jwtService.signAsync({
      sub: 1,
      stylistId: '1',
      email: 'stylist@example.com',
      username: 'Ogawa',
    });
  }

  beforeAll(async () => {
    execute.mockReset();
    getResult.mockReset();

    const moduleRef = await Test.createTestingModule({
      imports: [AppModule],
    })
      .overrideProvider(AiSimulationClient)
      .useValue({ execute, getResult })
      .compile();

    app = moduleRef.createNestApplication();
    configureApp(app);
    await app.init();
    jwtService = app.get(JwtService);
    prisma = app.get(PrismaService);
  });

  afterAll(async () => {
    await prisma.aiHairSimulationTask.deleteMany({
      where: {
        taskId: {
          startsWith: 'sim-e2e-task-',
        },
      },
    });
    await prisma.aiHairSimulation.deleteMany({
      where: {
        simulateRemark: {
          startsWith: 'sim-e2e-',
        },
      },
    });
    await prisma.hairTemplate.deleteMany({
      where: {
        templateName: {
          startsWith: 'sim-e2e-',
        },
      },
    });
    await prisma.customer.deleteMany({
      where: {
        name: {
          startsWith: 'sg-',
        },
      },
    });
    await app.close();
  });

  it('/api/v1/simulations (POST) creates an anonymous simulation', async () => {
    const token = await signToken();
    const uniqueSuffix = Date.now();
    const template = await prisma.hairTemplate.create({
      data: {
        templateName: `sim-e2e-template-${uniqueSuffix}`,
        coverUrl: '',
        status: 'PUBLIC',
        category: 'SHORT',
        tags: '',
        description: null,
        modelUrl: '',
        clothesUrl: '',
        backgroundUrl: '',
        refHairUrl: '',
        hairstylistId: BigInt(1),
        templateUrl: `https://cdn.example.com/${uniqueSuffix}.zip`,
        isSystemTemplate: 'NO',
      } as never,
    });
    execute.mockResolvedValueOnce({
      taskId: `sim-e2e-task-${uniqueSuffix}`,
    });

    const response = await request(app.getHttpServer())
      .post('/api/v1/simulations')
      .set('Authorization', `Bearer ${token}`)
      .send({
        originImage: 'https://cdn.example.com/origin.jpg',
        templateIds: [template.id.toString()],
        simulateRemark: `sim-e2e-${uniqueSuffix}`,
      });

    expect(response.status).toBe(201);

    expect(execute).toHaveBeenCalledWith(
      template.templateUrl,
      'https://cdn.example.com/origin.jpg',
    );
    expect(response.body.data).toEqual({
      simulationId: expect.any(String),
    });
  });

  it('/api/v1/simulations/:id (GET) returns task detail for the owner', async () => {
    const token = await signToken();
    const uniqueSuffix = `${Date.now()}-detail`;
    const template = await prisma.hairTemplate.create({
      data: {
        templateName: `sim-e2e-template-${uniqueSuffix}`,
        coverUrl: 'https://cdn.example.com/cover.png',
        status: 'PUBLIC',
        category: 'MEDIUM',
        tags: 'airy',
        description: 'detail template',
        modelUrl: '',
        clothesUrl: '',
        backgroundUrl: '',
        refHairUrl: '',
        hairstylistId: BigInt(1),
        templateUrl: `https://cdn.example.com/${uniqueSuffix}.zip`,
        isSystemTemplate: 'NO',
      } as never,
    });
    execute.mockResolvedValueOnce({
      taskId: `sim-e2e-task-${uniqueSuffix}`,
    });

    const created = await request(app.getHttpServer())
      .post('/api/v1/simulations')
      .set('Authorization', `Bearer ${token}`)
      .send({
        originImage: 'https://cdn.example.com/origin-detail.jpg',
        templateIds: [template.id.toString()],
        simulateRemark: `sim-e2e-${uniqueSuffix}`,
      })
      .expect(201);

    const response = await request(app.getHttpServer())
      .get(`/api/v1/simulations/${created.body.data.simulationId}`)
      .set('Authorization', `Bearer ${token}`)
      .expect(200);

    expect(response.body.data).toMatchObject({
      id: created.body.data.simulationId,
      createdAt: expect.any(String),
      originImage: 'https://cdn.example.com/origin-detail.jpg',
      totalTaskCount: 1,
      processingTaskCount: 1,
      successTaskCount: 0,
      failedTaskCount: 0,
      overallStatus: 'PROCESSING',
      tasks: [
        expect.objectContaining({
          templateId: template.id.toString(),
          templateName: template.templateName,
          templateCategory: template.category,
          templateSource: 'STYLIST',
          taskStatus: 'PROCESSING',
          resultImages: [],
        }),
      ],
    });
  });

  it('/api/v1/simulations/customer/:customerId/gallery (GET) returns flattened result cards', async () => {
    const token = await signToken();
    const uniqueSuffix = `${Date.now()}-gallery`;
    const customer = await prisma.customer.create({
      data: {
        hairstylistId: BigInt(1),
        name: `sg-${Date.now()}`,
        namePronunciation: '',
        phone: `090-${String(Date.now()).slice(-4)}-3333`,
        email: '',
        avatar: 'https://cdn.example.com/customer.png',
        expectContact: 'LINE',
        planDate: new Date(),
        nextFollowDate: new Date(),
      } as never,
    });
    const template = await prisma.hairTemplate.create({
      data: {
        templateName: `sim-e2e-template-${uniqueSuffix}`,
        coverUrl: 'https://cdn.example.com/cover.png',
        status: 'PUBLIC',
        category: 'SHORT',
        tags: 'airy',
        description: 'gallery template',
        modelUrl: '',
        clothesUrl: '',
        backgroundUrl: '',
        refHairUrl: '',
        hairstylistId: BigInt(1),
        templateUrl: `https://cdn.example.com/${uniqueSuffix}.zip`,
        isSystemTemplate: 'NO',
      } as never,
    });
    execute.mockResolvedValueOnce({
      taskId: `sim-e2e-task-${uniqueSuffix}`,
    });

    const created = await request(app.getHttpServer())
      .post('/api/v1/simulations')
      .set('Authorization', `Bearer ${token}`)
      .send({
        customerId: customer.id.toString(),
        originImage: 'https://cdn.example.com/origin-gallery.jpg',
        templateIds: [template.id.toString()],
        simulateRemark: `sim-e2e-${uniqueSuffix}`,
      })
      .expect(201);

    await prisma.aiHairSimulationTask.updateMany({
      where: {
        simulationId: BigInt(created.body.data.simulationId),
      },
      data: {
        taskStatus: 'SUCCESSES',
        resultImages: JSON.stringify([
          'https://cdn.example.com/gallery-2.png',
          'https://cdn.example.com/gallery-1.png',
        ]),
      } as never,
    });

    const response = await request(app.getHttpServer())
      .get(`/api/v1/simulations/customer/${customer.id}/gallery`)
      .set('Authorization', `Bearer ${token}`);

    expect(response.status).toBe(200);
    expect(response.body.data.items).toEqual(
      expect.arrayContaining([
        expect.objectContaining({
          simulationId: created.body.data.simulationId,
          imageUrl: 'https://cdn.example.com/gallery-2.png',
          templateName: template.templateName,
          taskStatus: 'SUCCESSES',
        }),
        expect.objectContaining({
          simulationId: created.body.data.simulationId,
          imageUrl: 'https://cdn.example.com/gallery-1.png',
          templateName: template.templateName,
          taskStatus: 'SUCCESSES',
        }),
      ]),
    );
  });
});