import { INestApplication } from '@nestjs/common';
import { withdrawalRangeText } from '../src/withdrawal/withdrawal-text';
import * as bcrypt from 'bcryptjs';
import request from 'supertest';
import { App } from 'supertest/types';
import { PrismaService } from '../src/prisma/prisma.service';
import { createTestApp } from './utils/create-test-app';
import { login } from './utils/api';

interface CalendarEventBody {
  id: string;
  type: string;
  title: string;
  date: string;
  endDate?: string;
  relatedType: string;
  relatedId: string;
}

describe('Calendar (e2e)', () => {
  let app: INestApplication<App>;
  let prisma: PrismaService;
  const beekeeperEmail = `calendar-e2e-beekeeper-${Date.now()}@example.com`;
  const password = 'SuperSecret123!';
  let beekeeperId: string;
  let beekeeperToken: string;
  let apiaryId: string;
  let colonyId: string;
  let taskId: string;
  let treatmentId: string;
  let colonyCode: string;
  let calendarOnlyRoleId: string;
  let calendarOnlyId: string;
  let calendarOnlyToken: string;

  beforeAll(async () => {
    app = await createTestApp();
    prisma = app.get(PrismaService);

    const passwordHash = await bcrypt.hash(password, 12);
    const beekeeper = await prisma.user.create({
      data: {
        email: beekeeperEmail,
        passwordHash,
        name: 'Beekeeper',
        role: { connect: { key: 'BEEKEEPER' } },
      },
    });
    beekeeperId = beekeeper.id;
    beekeeperToken = (await login(app, beekeeperEmail, password)).accessToken;

    const apiary = await prisma.apiary.create({
      data: { name: `Stand ${Date.now()}` },
    });
    apiaryId = apiary.id;
    const colony = await prisma.colony.create({
      data: {
        code: `V-${Date.now()}`,
        apiaryId,
        colonyType: 'PRODUCTION_COLONY',
      },
    });
    colonyId = colony.id;
    colonyCode = colony.code;
    // 2027-06-10 + 10 days: harvestable again from 2027-06-20.
    const treatment = await prisma.treatment.create({
      data: {
        colonyId,
        userId: beekeeperId,
        date: new Date('2027-06-10T00:00:00.000Z'),
        product: 'Oxuvar',
        withdrawalPeriodDays: 10,
      },
    });
    treatmentId = treatment.id;
    const calendarOnlyRole = await prisma.role.create({
      data: {
        key: `CAL_ONLY_${Date.now()}`,
        name: 'Nur Kalender',
        permissions: {
          create: [{ permission: { connect: { key: 'calendar:read' } } }],
        },
      },
    });
    calendarOnlyRoleId = calendarOnlyRole.id;
    const calendarOnly = await prisma.user.create({
      data: {
        email: `calendar-e2e-only-${Date.now()}@example.com`,
        passwordHash,
        name: 'Calendar only',
        roleId: calendarOnlyRoleId,
      },
    });
    calendarOnlyId = calendarOnly.id;
    calendarOnlyToken = (await login(app, calendarOnly.email, password))
      .accessToken;
    const task = await prisma.task.create({
      data: {
        title: `Kalendertest ${Date.now()}`,
        dueDate: new Date('2027-06-15'),
        createdByUserId: beekeeperId,
      },
    });
    taskId = task.id;
  });

  afterAll(async () => {
    await prisma.task.deleteMany({ where: { id: taskId } });
    await prisma.treatment.deleteMany({ where: { id: treatmentId } });
    await prisma.colony.deleteMany({ where: { id: colonyId } });
    await prisma.apiary.deleteMany({ where: { id: apiaryId } });
    const userIds = [beekeeperId, calendarOnlyId];
    await prisma.refreshToken.deleteMany({
      where: { userId: { in: userIds } },
    });
    await prisma.auditLog.deleteMany({ where: { userId: { in: userIds } } });
    await prisma.user.deleteMany({ where: { id: { in: userIds } } });
    await prisma.role.deleteMany({ where: { id: calendarOnlyRoleId } });
    await app.close();
  });

  it('rejects the request when from/to are missing', () => {
    return request(app.getHttpServer())
      .get('/api/v1/calendar')
      .set('Authorization', `Bearer ${beekeeperToken}`)
      .expect(400);
  });

  it('returns events for a task due within the queried range', async () => {
    const response = await request(app.getHttpServer())
      .get('/api/v1/calendar?from=2027-06-01&to=2027-06-30')
      .set('Authorization', `Bearer ${beekeeperToken}`)
      .expect(200);
    const events = response.body as CalendarEventBody[];
    expect(
      events.some(
        (event) =>
          event.type === 'TASK' && event.title.includes('Kalendertest'),
      ),
    ).toBe(true);
  });

  it('lists WITHDRAWAL as a span with endDate for users with treatments:read', async () => {
    const response = await request(app.getHttpServer())
      .get('/api/v1/calendar?from=2027-06-01&to=2027-06-30')
      .set('Authorization', `Bearer ${beekeeperToken}`)
      .expect(200);
    const events = response.body as CalendarEventBody[];

    const span = events.find(
      (event) =>
        event.type === 'WITHDRAWAL' && event.id === `withdrawal:${treatmentId}`,
    );
    expect(span).toMatchObject({
      title: `Wartezeit ${colonyCode} · Oxuvar`,
      context: colonyCode,
      product: 'Oxuvar',
      detail: withdrawalRangeText('2027-06-20'),
      relatedType: 'Colony',
      relatedId: colonyId,
    });
    expect(span?.date.slice(0, 10)).toBe('2027-06-10');
    // The last covered day, inclusive; 2027-06-20 is harvestable again.
    expect(span?.endDate?.slice(0, 10)).toBe('2027-06-19');
  });

  it('shows the span in a range that only touches the end of the window', async () => {
    const response = await request(app.getHttpServer())
      .get('/api/v1/calendar?from=2027-06-19&to=2027-06-25')
      .set('Authorization', `Bearer ${beekeeperToken}`)
      .expect(200);
    const events = response.body as CalendarEventBody[];

    expect(
      events.some((event) => event.id === `withdrawal:${treatmentId}`),
    ).toBe(true);
    const later = await request(app.getHttpServer())
      .get('/api/v1/calendar?from=2027-06-20&to=2027-06-25')
      .set('Authorization', `Bearer ${beekeeperToken}`)
      .expect(200);
    expect(
      (later.body as CalendarEventBody[]).some(
        (event) => event.id === `withdrawal:${treatmentId}`,
      ),
    ).toBe(false);
  });

  it('hides WITHDRAWAL from users without treatments:read', async () => {
    const response = await request(app.getHttpServer())
      .get('/api/v1/calendar?from=2027-06-01&to=2027-06-30')
      .set('Authorization', `Bearer ${calendarOnlyToken}`)
      .expect(200);

    expect(
      (response.body as CalendarEventBody[]).filter(
        (event) => event.type === 'WITHDRAWAL',
      ),
    ).toEqual([]);
  });

  it('lists TREATMENT events only for users with treatments:read', async () => {
    const asBeekeeper = await request(app.getHttpServer())
      .get('/api/v1/calendar?from=2027-06-01&to=2027-06-30')
      .set('Authorization', `Bearer ${beekeeperToken}`)
      .expect(200);
    const asCalendarOnly = await request(app.getHttpServer())
      .get('/api/v1/calendar?from=2027-06-01&to=2027-06-30')
      .set('Authorization', `Bearer ${calendarOnlyToken}`)
      .expect(200);

    const treatmentEvent = (body: unknown) =>
      (body as CalendarEventBody[]).filter(
        (event) => event.type === 'TREATMENT' && event.id === treatmentId,
      );
    expect(treatmentEvent(asBeekeeper.body)).toHaveLength(1);
    expect(treatmentEvent(asCalendarOnly.body)).toEqual([]);
  });

  it('rejects an invalid date range', () => {
    return request(app.getHttpServer())
      .get('/api/v1/calendar?from=nonsense&to=2027-06-30')
      .set('Authorization', `Bearer ${beekeeperToken}`)
      .expect(400);
  });
});