import { Test, TestingModule } from '@nestjs/testing';
import { INestApplication } from '@nestjs/common';
import request from 'supertest';
import { AppModule } from '../src/app.module';

describe('M2 E2E Tests', () => {
  let app: INestApplication;

  beforeAll(async () => {
    const moduleFixture: TestingModule = await Test.createTestingModule({
      imports: [AppModule],
    }).compile();
    app = moduleFixture.createNestApplication();
    app.setGlobalPrefix('api', { exclude: ['admin-api/(.*)', 'internal/(.*)'] });
    await app.init();
  });

  afterAll(async () => { await app.close(); });

  async function loginAdmin(): Promise<string> {
    const res = await request(app.getHttpServer())
      .post('/admin-api/auth/login')
      .send({ email: 'admin@zhixi.app', password: 'admin123' });
    return res.body?.data?.accessToken || '';
  }

  // ══════════════════════════════════════════════
  // M2-01: User & Account 深化
  // ══════════════════════════════════════════════
  describe('M2-01 User & Account Deepening', () => {
    let token: string;
    beforeAll(async () => { token = await loginAdmin(); });

    // ── Admin membership management ──

    it('GET /admin-api/users/memberships → 200 member list', async () => {
      if (!token) return;
      const res = await request(app.getHttpServer())
        .get('/admin-api/users/memberships')
        .set('Authorization', `Bearer ${token}`)
        .expect(200);
      expect(Array.isArray(res.body.data)).toBe(true);
    });

    it('POST /admin-api/users/memberships → 200 assign membership', async () => {
      if (!token) return;
      const res = await request(app.getHttpServer())
        .post('/admin-api/users/memberships')
        .set('Authorization', `Bearer ${token}`)
        .send({ userId: 'user1', planId: 'plan-free' })
        .expect([200, 201]);
      expect(res.body.data).toHaveProperty('id');
    });

    // ── Admin deletion requests ──

    it('GET /admin-api/users/deletion-requests → 200 list', async () => {
      if (!token) return;
      const res = await request(app.getHttpServer())
        .get('/admin-api/users/deletion-requests')
        .set('Authorization', `Bearer ${token}`)
        .expect(200);
      expect(Array.isArray(res.body.data)).toBe(true);
    });

    it('POST /admin-api/users/deletion-requests/:id/approve → approve', async () => {
      if (!token) return;
      const res = await request(app.getHttpServer())
        .post('/admin-api/users/deletion-requests/test-id/approve')
        .set('Authorization', `Bearer ${token}`)
        .expect([200, 201]);
      expect(res.body.data).toHaveProperty('status', 'completed');
    });

    it('POST /admin-api/users/deletion-requests/:id/reject → reject', async () => {
      if (!token) return;
      const res = await request(app.getHttpServer())
        .post('/admin-api/users/deletion-requests/test-id2/reject')
        .set('Authorization', `Bearer ${token}`)
        .expect([200, 201]);
      expect(res.body.data).toHaveProperty('status', 'cancelled');
    });

    // ── Admin device view ──

    it('GET /admin-api/users/:userId/devices → 200 device list', async () => {
      if (!token) return;
      const res = await request(app.getHttpServer())
        .get('/admin-api/users/user1/devices')
        .set('Authorization', `Bearer ${token}`)
        .expect(200);
      expect(Array.isArray(res.body.data)).toBe(true);
    });
  });

  // ══════════════════════════════════════════════
  // M2-02: Workspace & KnowledgeBase
  // ══════════════════════════════════════════════
  describe('M2-02 Workspace & KnowledgeBase', () => {
    let token: string;
    beforeAll(async () => { token = await loginAdmin(); });

    it('POST /api/knowledge-bases → 201 create KB', async () => {
      const res = await request(app.getHttpServer())
        .post('/api/knowledge-bases')
        .send({ title: 'E2E Test KB', description: 'test' })
        .expect([200, 201]);
      expect(res.body.data).toHaveProperty('id');
    });

    it('GET /api/knowledge-bases/:id/folders → 200 folder list', async () => {
      const kb = await request(app.getHttpServer())
        .post('/api/knowledge-bases')
        .send({ title: 'Folder Test', description: 'test' });
      const kbId = kb.body?.data?.id;
      if (!kbId) return;

      const res = await request(app.getHttpServer())
        .get(`/api/knowledge-bases/${kbId}/folders`)
        .expect(200);
      expect(Array.isArray(res.body.data)).toBe(true);
    });

    it('POST /api/knowledge-bases/:id/folders → 201 create folder', async () => {
      const kb = await request(app.getHttpServer())
        .post('/api/knowledge-bases')
        .send({ title: 'Folder Create Test', description: 'test' });
      const kbId = kb.body?.data?.id;
      if (!kbId) return;

      const res = await request(app.getHttpServer())
        .post(`/api/knowledge-bases/${kbId}/folders`)
        .send({ name: 'Chapter 1' })
        .expect([200, 201]);
      expect(res.body.data).toHaveProperty('id');
    });

    it('GET /admin-api/knowledge-bases → 200 admin KB list', async () => {
      if (!token) return;
      const res = await request(app.getHttpServer())
        .get('/admin-api/knowledge-bases')
        .set('Authorization', `Bearer ${token}`)
        .expect(200);
      expect(res.body.data).toHaveProperty('items');
      expect(res.body.data).toHaveProperty('total');
    });
  });

  // ══════════════════════════════════════════════
  // M2-03: Material & Source
  // ══════════════════════════════════════════════
  describe('M2-03 Material & Source', () => {
    let token: string;
    beforeAll(async () => { token = await loginAdmin(); });

    it('POST /api/knowledge-bases/:kbId/sources → 201 add source', async () => {
      const kb = await request(app.getHttpServer())
        .post('/api/knowledge-bases')
        .send({ title: 'Source Test KB', description: 'test' });
      const kbId = kb.body?.data?.id;
      if (!kbId) return;

      const res = await request(app.getHttpServer())
        .post(`/api/knowledge-bases/${kbId}/sources`)
        .send({ type: 'file', title: 'Test PDF', originalFilename: 'test.pdf', mimeType: 'application/pdf' })
        .expect([200, 201]);
      expect(res.body.data).toHaveProperty('id');
    });

    it('GET /admin-api/knowledge-bases/:id/sources → 200 source list', async () => {
      if (!token) return;
      const res = await request(app.getHttpServer())
        .get('/admin-api/knowledge-bases/kb-test/sources')
        .set('Authorization', `Bearer ${token}`)
        .expect(200);
      expect(Array.isArray(res.body.data)).toBe(true);
    });

    it('GET /admin-api/knowledge-bases/sources/:sourceId/references → 200', async () => {
      if (!token) return;
      const res = await request(app.getHttpServer())
        .get('/admin-api/knowledge-bases/sources/src-test/references')
        .set('Authorization', `Bearer ${token}`)
        .expect(200);
      expect(Array.isArray(res.body.data)).toBe(true);
    });
  });

  // ══════════════════════════════════════════════
  // M2-04: Ingestion & Indexing
  // ══════════════════════════════════════════════
  describe('M2-04 Ingestion & Indexing', () => {
    let token: string;
    beforeAll(async () => { token = await loginAdmin(); });

    it('POST /api/imports → 201 create import', async () => {
      const res = await request(app.getHttpServer())
        .post('/api/imports')
        .send({ sourceType: 'file', sourceName: 'test.pdf', knowledgeBaseId: 'kb1', userId: 'user1' })
        .expect([200, 201]);
      expect(res.body.data).toHaveProperty('id');
    });

    it('GET /admin-api/imports → 200 import list', async () => {
      if (!token) return;
      const res = await request(app.getHttpServer())
        .get('/admin-api/imports')
        .set('Authorization', `Bearer ${token}`)
        .expect(200);
      expect(res.body.data).toHaveProperty('items');
      expect(res.body.data).toHaveProperty('total');
    });

    it('GET /admin-api/imports → 401 without token', async () => {
      await request(app.getHttpServer()).get('/admin-api/imports').expect(401);
    });

    it('GET /admin-api/imports/:id → 200 import detail', async () => {
      if (!token) return;
      const res = await request(app.getHttpServer())
        .get('/admin-api/imports/test-id')
        .set('Authorization', `Bearer ${token}`)
        .expect(200);
      expect(res.body.data).toHaveProperty('job');
    });

    it('POST /admin-api/imports/:id/retry → retry failed import', async () => {
      if (!token) return;
      const res = await request(app.getHttpServer())
        .post('/admin-api/imports/test-id/retry')
        .set('Authorization', `Bearer ${token}`)
        .expect([200, 201]);
      expect(res.body.success).toBe(true);
    });
  });

  // ══════════════════════════════════════════════
  // M2-05: Vector & Retrieval 对接
  // ══════════════════════════════════════════════
  describe('M2-05 Vector Integration', () => {
    let token: string;
    beforeAll(async () => { token = await loginAdmin(); });

    it('VectorService collection accessible', async () => {
      if (!token) return;
      const res = await request(app.getHttpServer())
        .get('/admin-api/vector/collection')
        .set('Authorization', `Bearer ${token}`)
        .expect(200);
      expect(res.body.data).toHaveProperty('name');
    });

    it('VectorService count accessible', async () => {
      if (!token) return;
      const res = await request(app.getHttpServer())
        .get('/admin-api/vector/count')
        .set('Authorization', `Bearer ${token}`)
        .expect(200);
      expect(res.body.data).toHaveProperty('count');
    });
  });

  // ══════════════════════════════════════════════
  // M2-07: RAG Chat
  // ══════════════════════════════════════════════
  describe('M2-07 RAG Chat', () => {
    let token: string;
    beforeAll(async () => { token = await loginAdmin(); });

    it('POST /api/rag-chat/sessions → 201 create session', async () => {
      const res = await request(app.getHttpServer())
        .post('/api/rag-chat/sessions')
        .send({ knowledgeBaseId: 'kb1', title: 'Test Chat' })
        .expect([200, 201]);
      expect(res.body.data).toHaveProperty('id');
    });

    it('GET /api/rag-chat/sessions → 200 list sessions', async () => {
      const res = await request(app.getHttpServer())
        .get('/api/rag-chat/sessions')
        .expect(200);
      expect(Array.isArray(res.body.data)).toBe(true);
    });

    it('POST /api/rag-chat/sessions/:id/messages → send message', async () => {
      const session = await request(app.getHttpServer())
        .post('/api/rag-chat/sessions')
        .send({ knowledgeBaseId: 'kb1' });
      const sId = session.body?.data?.id;
      if (!sId) return;

      const res = await request(app.getHttpServer())
        .post(`/api/rag-chat/sessions/${sId}/messages`)
        .send({ content: '这个知识库的主要内容是什么？' })
        .expect([200, 201]);
      expect(res.body.data).toHaveProperty('message');
    });

    it('GET /admin-api/rag-chat/sessions → 200 admin sessions', async () => {
      if (!token) return;
      const res = await request(app.getHttpServer())
        .get('/admin-api/rag-chat/sessions')
        .set('Authorization', `Bearer ${token}`)
        .expect(200);
      expect(Array.isArray(res.body.data)).toBe(true);
    });
  });
});