import { beforeEach, describe, expect, it, mock, vi } from 'bun:test';
import { Hono } from 'hono';

const db = {
  group: {
    findUnique: mock(),
    findFirst: mock(),
    update: mock(),
    count: mock(),
  },
  attendee: {
    findMany: mock(),
    findFirst: mock(),
    create: mock(),
    count: mock(),
  },
};

mock.module('@/lib/prisma', () => ({
  default: db,
  getPrismaClient: mock(),
  UnitOfWork: class {},
}));

import prisma from '@/lib/prisma';
import { groupsRoutes } from '@/modules/groups';

const teacherId = 'teacher-1';
const mockGroup = {
  id: 'group-1',
  name: 'Taller de Pintura',
  description: 'Acuarelas para principiantes',
  createdById: teacherId,
  inviteToken: 'pintura-token-xyz',
  createdAt: new Date('2026-09-01T10:00:00.000Z'),
  updatedAt: new Date('2026-09-01T10:00:00.000Z'),
  days: ['MONDAY'],
  time: '18:00',
  capacity: 20,
  price: 1500,
  billingType: 'MONTHLY',
  dueDay: 10,
  members: [],
};

function makeApp(userValue: unknown) {
  const app = new Hono();
  app.use('*', async (c, next) => {
    c.set('user', userValue as never);
    await next();
  });
  app.route('/groups', groupsRoutes);
  return app;
}

describe('attendee incorporation & invite-token in groups', () => {
  beforeEach(() => {
    vi.clearAllMocks();
  });

  describe('GET /groups/:groupId/invite-token', () => {
    it('returns existing invite token and url', async () => {
      prisma.group.findUnique.mockResolvedValue(mockGroup as never);

      const app = makeApp({ id: teacherId });
      const res = await app.request('/groups/group-1/invite-token');

      expect(res.status).toBe(200);
      const data = await res.json();
      expect(data.token).toBe('pintura-token-xyz');
      expect(data.inviteUrl).toContain('/join/pintura-token-xyz');
    });

    it('generates a new token if group did not have one', async () => {
      prisma.group.findUnique.mockResolvedValue({
        ...mockGroup,
        inviteToken: null,
      } as never);
      prisma.group.update.mockResolvedValue({} as never);

      const app = makeApp({ id: teacherId });
      const res = await app.request('/groups/group-1/invite-token');

      expect(res.status).toBe(200);
      const data = await res.json();
      expect(data.token).toBeDefined();
      expect(data.token.length).toBeGreaterThan(5);
      expect(prisma.group.update).toHaveBeenCalled();
    });

    it('rejects user without access to the group', async () => {
      prisma.group.findUnique.mockResolvedValue(mockGroup as never);

      const app = makeApp({ id: 'other-user' });
      const res = await app.request('/groups/group-1/invite-token');

      expect(res.status).toBe(403);
    });
  });

  describe('POST /groups/:groupId/attendees (individual quick add)', () => {
    it('creates an attendee for the group', async () => {
      prisma.group.findUnique.mockResolvedValue(mockGroup as never);
      prisma.attendee.findFirst.mockResolvedValue(null);
      prisma.attendee.create.mockResolvedValue({
        id: 'att-1',
        groupId: 'group-1',
        fullName: 'Martín Gómez',
        email: 'martin@example.com',
        phone: '+5491133445566',
        guardianName: null,
        guardianPhone: null,
        notes: 'Viene con su hermano',
        createdAt: new Date('2026-09-18T10:00:00.000Z'),
        updatedAt: new Date('2026-09-18T10:00:00.000Z'),
      } as never);

      const app = makeApp({ id: teacherId });
      const res = await app.request('/groups/group-1/attendees', {
        method: 'POST',
        headers: { 'Content-Type': 'application/json' },
        body: JSON.stringify({
          firstName: 'Martín',
          lastName: 'Gómez',
          phone: '+54 9 11 3344-5566',
          email: 'martin@example.com',
          notes: 'Viene con su hermano',
        }),
      });

      expect(res.status).toBe(201);
      const data = await res.json();
      expect(data.fullName).toBe('Martín Gómez');
      expect(data.phone).toBe('+5491133445566');
      expect(prisma.attendee.create).toHaveBeenCalledWith({
        data: {
          groupId: 'group-1',
          fullName: 'Martín Gómez',
          phone: '+5491133445566',
          email: 'martin@example.com',
          notes: 'Viene con su hermano',
        },
      });
    });

    it('rejects duplicate phone number in individual add', async () => {
      prisma.group.findUnique.mockResolvedValue(mockGroup as never);
      prisma.attendee.findFirst.mockResolvedValue({ id: 'att-existing' } as never);

      const app = makeApp({ id: teacherId });
      const res = await app.request('/groups/group-1/attendees', {
        method: 'POST',
        headers: { 'Content-Type': 'application/json' },
        body: JSON.stringify({
          firstName: 'Martín',
          lastName: 'Gómez',
          phone: '1133445566',
        }),
      });

      expect(res.status).toBe(409);
      expect(prisma.attendee.create).not.toHaveBeenCalled();
    });
  });

  describe('POST /groups/:groupId/attendees/bulk (bulk import)', () => {
    it('imports multiple attendees, skipping duplicates and reporting counts', async () => {
      prisma.group.findUnique.mockResolvedValue(mockGroup as never);
      // Simular que ya existe un alumno con teléfono '11111111'
      prisma.attendee.findMany.mockResolvedValue([
        { phone: '11111111' },
      ] as never);

      prisma.attendee.create.mockImplementation(async ({ data }: { data: any }) => ({
        id: `att-${Math.random()}`,
        ...data,
        guardianName: null,
        guardianPhone: null,
        createdAt: new Date('2026-09-18T10:00:00.000Z'),
        updatedAt: new Date('2026-09-18T10:00:00.000Z'),
      }));

      const app = makeApp({ id: teacherId });
      const res = await app.request('/groups/group-1/attendees/bulk', {
        method: 'POST',
        headers: { 'Content-Type': 'application/json' },
        body: JSON.stringify({
          attendees: [
            { firstName: 'Ana', lastName: 'García', phone: '22222222' },
            { firstName: 'Pedro', lastName: 'López', phone: '33333333' },
            { firstName: 'Duplicado', lastName: 'Existente', phone: '11111111' }, // Ya existe en BD
            { firstName: 'Duplicado', lastName: 'EnLote', phone: '22222222' }, // Duplicado dentro del lote
          ],
        }),
      });

      expect(res.status).toBe(201);
      const data = await res.json();
      expect(data.totalProcessed).toBe(4);
      expect(data.createdCount).toBe(2);
      expect(data.duplicatesCount).toBe(2);
      expect(data.message).toBe('2 alumnos agregados con éxito, 2 duplicados omitidos.');
      expect(prisma.attendee.create).toHaveBeenCalledTimes(2);
    });
  });

  describe('GET /groups/:groupId/attendees', () => {
    it('lists attendees filtered by groupId', async () => {
      prisma.attendee.findMany.mockResolvedValue([
        {
          id: 'att-1',
          groupId: 'group-1',
          fullName: 'Ana García',
          email: null,
          phone: '22222222',
          guardianName: null,
          guardianPhone: null,
          notes: null,
          createdAt: new Date('2026-09-18T10:00:00.000Z'),
          updatedAt: new Date('2026-09-18T10:00:00.000Z'),
        },
      ] as never);
      prisma.attendee.count.mockResolvedValue(1);

      const app = makeApp({ id: teacherId });
      const res = await app.request('/groups/group-1/attendees');

      expect(res.status).toBe(200);
      const data = await res.json();
      expect(data.data.length).toBe(1);
      expect(data.data[0].fullName).toBe('Ana García');
      expect(prisma.attendee.findMany).toHaveBeenCalledWith({
        where: { groupId: 'group-1' },
        skip: 0,
        take: 10,
        orderBy: { createdAt: 'desc' },
      });
    });
  });
});