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 { PrismaService } from '../src/prisma/prisma.service';
import { GcsStorageDriver } from '../src/modules/storage/gcs-storage.driver';
import { STORAGE_DRIVER } from '../src/modules/storage/storage.constants';

const { AppModule } = require('../src/app.module');

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

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

  beforeAll(async () => {
    upload.mockReset();
    upload.mockResolvedValue(undefined);

    const moduleRef = await Test.createTestingModule({
      imports: [AppModule],
    })
      .overrideProvider(STORAGE_DRIVER)
      .useValue({ upload })
      .overrideProvider(GcsStorageDriver)
      .useValue({ upload })
      .compile();

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

  afterAll(async () => {
    await prisma.aiHairSimulation.deleteMany({
      where: {
        simulateRemark: {
          startsWith: 'app-e2e-customer-summary-',
        },
      },
    });
    await prisma.customer.deleteMany({
      where: {
        name: {
          startsWith: 'e2e-',
        },
      },
    });
    await app.close();
  });

  it('/api/v1/health (GET)', async () => {
    const response = await request(app.getHttpServer()).get('/api/v1/health').expect(200);

    expect(response.body).toEqual({
      ok: true,
      data: {
        status: 'ok',
        timestamp: expect.any(String),
        services: {
          database: expect.any(String),
          redis: expect.any(String),
        },
      },
      error: null,
    });
  });

  it('/api/v1/unknown (GET)', async () => {
    const response = await request(app.getHttpServer()).get('/api/v1/unknown').expect(404);

    expect(response.body).toEqual({
      ok: false,
      data: null,
      error: {
        code: 'HTTP_404',
        message: expect.any(String),
      },
    });
  });

  it('/api/v1/auth/stylist/login (POST) validates request body', async () => {
    const response = await request(app.getHttpServer())
      .post('/api/v1/auth/stylist/login')
      .send({ email: 'bad-email', password: '' })
      .expect(400);

    expect(response.body.ok).toBe(false);
    expect(response.body.data).toBeNull();
    expect(response.body.error.code).toBe('HTTP_400');
  });

  it('/api/v1/auth/stylist/login (POST) returns invalid credentials when no matching account exists', async () => {
    const response = await request(app.getHttpServer())
      .post('/api/v1/auth/stylist/login')
      .send({ email: 'missing-app-e2e@example.com', password: 'Passw0rd!' })
      .expect(401);

    expect(response.body).toEqual({
      ok: false,
      data: null,
      error: {
        code: 'AUTH_INVALID_CREDENTIALS',
        message: '邮箱或密码错误',
      },
    });
  });

  it('/api/v1/customers (GET) requires authentication', async () => {
    const response = await request(app.getHttpServer())
      .get('/api/v1/customers')
      .expect(401);

    expect(response.body).toEqual({
      ok: false,
      data: null,
      error: {
        code: 'AUTH_UNAUTHORIZED',
        message: '未登录或登录已失效',
      },
    });
  });

  it('/api/v1/customers (POST) creates a customer using the redesigned fields', async () => {
    const token = await signToken();
    const uniqueSuffix = Date.now();
    const customerName = `e2e-c-${uniqueSuffix}`;

    const response = await request(app.getHttpServer())
      .post('/api/v1/customers')
      .set('Authorization', `Bearer ${token}`)
      .send({
        name: customerName,
        phone: `090-${String(uniqueSuffix).slice(-4)}-0000`,
        namePronunciation: 'さとう みさき',
        expectContact: 'LINE',
        hairLength: 'MEDIUM',
        hairTexture: 'NORMAL',
        planDate: '2026-06-28',
        nextFollowDate: '2026-07-12',
        visitPurpose: 'CONSULT_SIM',
        trouble: '发量少',
        consultContent: '希望有轻盈感',
        expectLook: '自然层次感',
        followContent: '确认褪色情况并提醒护理',
      })
      .expect(201);

    expect(response.body.ok).toBe(true);
    expect(response.body.data.name).toBe(customerName);
    expect(response.body.data.namePronunciation).toBe('さとう みさき');
    expect(response.body.data.avatar).toBe(
      'https://storage.googleapis.com/aitori-public/style/sample/066c7ba22ea149268444bc2d919d5b97.png',
    );
    expect(response.body.data.followContent).toBe('确认褪色情况并提醒护理');
  });

  it('/api/v1/customers (GET) returns paginated customers using plan_date semantics', async () => {
    const token = await signToken();
    const uniqueSuffix = `${Date.now()}-list`;
    const customerName = `e2e-l-${uniqueSuffix}`;

    await prisma.customer.create({
      data: {
        hairstylistId: BigInt(1),
        name: customerName,
        namePronunciation: '',
        phone: `090-${String(Date.now()).slice(-4)}-1111`,
        email: '',
        avatar:
          'https://storage.googleapis.com/aitori-public/style/sample/066c7ba22ea149268444bc2d919d5b97.png',
        expectContact: 'LINE',
        hairLength: 'MEDIUM',
        hairTexture: 'NORMAL',
        planDate: new Date(),
        nextFollowDate: new Date(),
      } as never,
    });

    const response = await request(app.getHttpServer())
      .get(`/api/v1/customers?page=1&pageSize=20&q=e2e-l-&visitStatus=TODAY&hairLength=MEDIUM`)
      .set('Authorization', `Bearer ${token}`)
      .expect(200);

    expect(response.body.ok).toBe(true);
    expect(response.body.data).toEqual({
      items: expect.any(Array),
      total: expect.any(Number),
      page: 1,
      pageSize: 20,
    });
  });

  it('/api/v1/customers/summary (GET) returns customer summary', async () => {
    const token = await signToken();
    const uniqueSuffix = `${Date.now()}-summary`;
    const customerName = `e2e-s-${uniqueSuffix}`;
    const customer = await prisma.customer.create({
      data: {
        hairstylistId: BigInt(1),
        name: customerName,
        namePronunciation: '',
        phone: `090-${String(Date.now()).slice(-4)}-2222`,
        email: '',
        avatar:
          'https://storage.googleapis.com/aitori-public/style/sample/066c7ba22ea149268444bc2d919d5b97.png',
        expectContact: 'LINE',
        planDate: new Date(),
        nextFollowDate: new Date(),
      } as never,
    });

    await prisma.aiHairSimulation.create({
      data: {
        customerId: customer.id,
        hairstylistId: BigInt(1),
        originImage: (customer as unknown as { avatar: string }).avatar,
        simulateRemark: `app-e2e-customer-summary-${uniqueSuffix}`,
      },
    });

    const response = await request(app.getHttpServer())
      .get('/api/v1/customers/summary')
      .set('Authorization', `Bearer ${token}`)
      .expect(200);

    expect(response.body.ok).toBe(true);
    expect(response.body.data).toEqual({
      total: expect.any(Number),
      today: expect.any(Number),
      followUp: expect.any(Number),
      simulated: expect.any(Number),
    });
  });

  it('/api/v1/customers/:id (GET) returns customer detail', async () => {
    const token = await signToken();
    const uniqueSuffix = Date.now();
    const customerName = `e2e-d-${uniqueSuffix}`;

    const created = await request(app.getHttpServer())
      .post('/api/v1/customers')
      .set('Authorization', `Bearer ${token}`)
      .send({
        name: customerName,
        phone: `091-${String(uniqueSuffix).slice(-4)}-3333`,
        recommendVisitDate: '2026-07-22',
        nextFollowDate: '2026-07-15',
        followContent: '请提前确认发色退色情况',
      })
      .expect(201);

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

    expect(detail.body.ok).toBe(true);
    expect(detail.body.data.name).toBe(customerName);
    expect(detail.body.data.visitFrequencyLabel).toBe('未记录');
    expect(detail.body.data.followContent).toBe('请提前确认发色退色情况');
  });

  it('/api/v1/customers/:id (PATCH) updates customer detail', async () => {
    const token = await signToken();
    const uniqueSuffix = Date.now();
    const customerName = `e2e-u-${uniqueSuffix}`;

    const created = await request(app.getHttpServer())
      .post('/api/v1/customers')
      .set('Authorization', `Bearer ${token}`)
      .send({
        name: customerName,
        phone: `092-${String(uniqueSuffix).slice(-4)}-4444`,
      })
      .expect(201);

    const updated = await request(app.getHttpServer())
      .patch(`/api/v1/customers/${created.body.data.id}`)
      .set('Authorization', `Bearer ${token}`)
      .send({
        name: `${customerName}-updated`,
        phone: `093-${String(uniqueSuffix).slice(-4)}-5555`,
        hairLength: 'LONG',
        hairTexture: 'CURLY',
        followContent: '更新后的跟进内容',
      })
      .expect(200);

    expect(updated.body.ok).toBe(true);
    expect(updated.body.data.name).toBe(`${customerName}-updated`);
    expect(updated.body.data.phone).toBe(`093-${String(uniqueSuffix).slice(-4)}-5555`);
    expect(updated.body.data.hairLength).toBe('LONG');
    expect(updated.body.data.followContent).toBe('更新后的跟进内容');
  });

  it('/api/v1/templates (GET) returns an empty list envelope', async () => {
    const response = await request(app.getHttpServer())
      .get('/api/v1/templates')
      .expect(200);

    expect(response.body).toEqual({
      ok: true,
      data: {
        items: [],
        total: 0,
      },
      error: null,
    });
  });

  it('/api/v1/simulations (POST) validates create payload', async () => {
    await request(app.getHttpServer())
      .post('/api/v1/simulations')
      .send({})
      .expect(400);
  });

  it('/api/v1/storage/upload (POST) uploads a file and returns a public url', async () => {
    const response = await request(app.getHttpServer())
      .post('/api/v1/storage/upload')
      .field('type', 'template')
      .attach('file', Buffer.from('hello'), {
        filename: 'look.png',
        contentType: 'image/png',
      })
      .expect(201);

    expect(upload).toHaveBeenCalledWith(
      expect.objectContaining({
        objectKey: expect.stringMatching(/^stylist\/template\/.+\.png$/),
        contentType: 'image/png',
      }),
    );
    expect(response.body.ok).toBe(true);
    expect(response.body.data.objectKey).toMatch(/^stylist\/template\/.+\.png$/);
    expect(response.body.data.url).toBe(
      `https://storage.googleapis.com/aitori-public/${response.body.data.objectKey}`,
    );
  });

  it('/api/v1/storage/upload (POST) rejects requests without a file', async () => {
    const response = await request(app.getHttpServer())
      .post('/api/v1/storage/upload')
      .field('type', 'template')
      .expect(400);

    expect(response.body).toEqual({
      ok: false,
      data: null,
      error: {
        code: 'HTTP_400',
        message: '请选择要上传的文件',
      },
    });
  });

  it('/api/v1/storage/upload (POST) validates type', async () => {
    const response = await request(app.getHttpServer())
      .post('/api/v1/storage/upload')
      .field('type', '../template')
      .attach('file', Buffer.from('hello'), {
        filename: 'look.png',
        contentType: 'image/png',
      })
      .expect(400);

    expect(response.body).toEqual({
      ok: false,
      data: null,
      error: {
        code: 'HTTP_400',
        message: '上传类型不合法',
      },
    });
  });
});