import { INestApplication } from '@nestjs/common';
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 FeedingBody {
  id: string;
  colonyId: string;
}

interface FeedingSummaryEntry {
  unit: string;
  totalAmount: number;
}

interface BulkFeedingBody {
  bulkId: string;
  records: (FeedingBody & {
    feedType: string;
    amount: number;
    unit: string;
    batchNumber: string | null;
    userId: string;
  })[];
}

describe('Feedings (e2e)', () => {
  let app: INestApplication<App>;
  let prisma: PrismaService;
  const staffEmail = `feedings-e2e-staff-${Date.now()}@example.com`;
  const readonlyEmail = `feedings-e2e-readonly-${Date.now()}@example.com`;
  const password = 'SuperSecret123!';
  let staffId: string;
  let readonlyId: string;
  let staffToken: string;
  let readonlyToken: string;
  let apiaryId: string;
  let colonyId: string;
  let feedingId: string;

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

    const passwordHash = await bcrypt.hash(password, 12);
    const staff = await prisma.user.create({
      data: {
        email: staffEmail,
        passwordHash,
        name: 'Staff',
        role: { connect: { key: 'STAFF' } },
      },
    });
    staffId = staff.id;
    const readonly = await prisma.user.create({
      data: {
        email: readonlyEmail,
        passwordHash,
        name: 'Readonly',
        role: { connect: { key: 'READONLY' } },
      },
    });
    readonlyId = readonly.id;
    staffToken = (await login(app, staffEmail, password)).accessToken;
    readonlyToken = (await login(app, readonlyEmail, 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;
  });

  afterAll(async () => {
    const feedingIds = (
      await prisma.feeding.findMany({
        where: { colonyId },
        select: { id: true },
      })
    ).map((feeding) => feeding.id);
    await prisma.domainEvent.deleteMany({
      where: { aggregateType: 'Feeding', aggregateId: { in: feedingIds } },
    });
    await prisma.feeding.deleteMany({ where: { colonyId } });
    await prisma.colony.deleteMany({ where: { id: colonyId } });
    await prisma.apiary.deleteMany({ where: { id: apiaryId } });
    await prisma.refreshToken.deleteMany({
      where: { userId: { in: [staffId, readonlyId] } },
    });
    await prisma.auditLog.deleteMany({
      where: { userId: { in: [staffId, readonlyId] } },
    });
    await prisma.user.deleteMany({
      where: { id: { in: [staffId, readonlyId] } },
    });
    await app.close();
  });

  it('rejects create for a READONLY user', () => {
    return request(app.getHttpServer())
      .post('/api/v1/feedings')
      .set('Authorization', `Bearer ${readonlyToken}`)
      .send({
        colonyId,
        date: new Date().toISOString(),
        feedType: 'SUGAR_WATER',
        amount: 2,
        unit: 'l',
      })
      .expect(403);
  });

  it('lets a STAFF user record a feeding', async () => {
    const response = await request(app.getHttpServer())
      .post('/api/v1/feedings')
      .set('Authorization', `Bearer ${staffToken}`)
      .send({
        colonyId,
        date: new Date().toISOString(),
        feedType: 'SUGAR_WATER',
        amount: 2.5,
        unit: 'l',
      })
      .expect(201);
    feedingId = (response.body as FeedingBody).id;
    expect(feedingId).toEqual(expect.any(String));
  });

  it('wrote the audit entry and FeedingRecorded together with the feeding', async () => {
    expect(
      await prisma.auditLog.count({
        where: {
          entityType: 'Feeding',
          entityId: feedingId,
          action: 'CREATE',
          userId: staffId,
        },
      }),
    ).toBe(1);
    const events = await prisma.domainEvent.findMany({
      where: { aggregateType: 'Feeding', aggregateId: feedingId },
    });
    expect(events).toHaveLength(1);
    expect(events[0]).toEqual(
      expect.objectContaining({
        type: 'FeedingRecorded',
        actorUserId: staffId,
        payload: { colonyId },
      }),
    );
  });

  it('records FeedingCorrected on an edit', async () => {
    await request(app.getHttpServer())
      .patch(`/api/v1/feedings/${feedingId}`)
      .set('Authorization', `Bearer ${staffToken}`)
      .send({ notes: 'korrigiert' })
      .expect(200);

    const corrections = await prisma.domainEvent.findMany({
      where: {
        aggregateType: 'Feeding',
        aggregateId: feedingId,
        type: 'FeedingCorrected',
      },
    });
    expect(corrections).toHaveLength(1);
    expect(corrections[0].payload).toEqual({ colonyId });
  });

  it('lists feedings for the colony', async () => {
    const response = await request(app.getHttpServer())
      .get(`/api/v1/colonies/${colonyId}/feedings`)
      .set('Authorization', `Bearer ${readonlyToken}`)
      .expect(200);
    const feedings = response.body as FeedingBody[];
    expect(feedings.some((entry) => entry.id === feedingId)).toBe(true);
  });

  it('summarizes total fed amount per unit', async () => {
    const response = await request(app.getHttpServer())
      .get(`/api/v1/colonies/${colonyId}/feedings/summary`)
      .set('Authorization', `Bearer ${readonlyToken}`)
      .expect(200);
    const summary = response.body as FeedingSummaryEntry[];
    const litersEntry = summary.find((entry) => entry.unit === 'l');
    expect(litersEntry?.totalAmount).toBe(2.5);
  });

  describe('POST /feedings/bulk', () => {
    const suffix = Date.now();
    const shared = {
      date: '2026-09-01',
      feedType: 'FEED_SYRUP',
      product: 'Apiinvert',
      amount: 10,
      unit: 'kg',
      batchNumber: 'L-2026-09',
    };
    let bulkColonyIds: string[];
    let endedColonyId: string;

    const postBulk = (token: string, body: object) =>
      request(app.getHttpServer())
        .post('/api/v1/feedings/bulk')
        .set('Authorization', `Bearer ${token}`)
        .send(body);

    const storedFeedings = () =>
      prisma.feeding.count({
        where: { colonyId: { in: [...bulkColonyIds, endedColonyId] } },
      });

    beforeAll(async () => {
      const colonyAt = async (
        code: string,
        status: 'ACTIVE' | 'SOLD' = 'ACTIVE',
      ) =>
        (
          await prisma.colony.create({
            data: {
              code: `${code}-${suffix}`,
              apiaryId,
              colonyType: 'PRODUCTION_COLONY',
              status,
            },
          })
        ).id;
      bulkColonyIds = [await colonyAt('FB-1'), await colonyAt('FB-2')];
      endedColonyId = await colonyAt('FB-X', 'SOLD');
    });

    afterAll(async () => {
      const colonyIds = [...bulkColonyIds, endedColonyId];
      const feedingIds = (
        await prisma.feeding.findMany({
          where: { colonyId: { in: colonyIds } },
          select: { id: true },
        })
      ).map((feeding) => feeding.id);
      await prisma.domainEvent.deleteMany({
        where: { aggregateType: 'Feeding', aggregateId: { in: feedingIds } },
      });
      await prisma.feeding.deleteMany({
        where: { colonyId: { in: colonyIds } },
      });
      await prisma.colony.deleteMany({ where: { id: { in: colonyIds } } });
    });

    it('bulk creates one feeding per colony with the shared fields', async () => {
      const response = await postBulk(staffToken, {
        ...shared,
        colonyIds: bulkColonyIds,
      }).expect(201);

      const { bulkId, records } = response.body as BulkFeedingBody;
      expect(records.map((record) => record.colonyId)).toEqual(bulkColonyIds);
      for (const record of records) {
        expect(record).toEqual(
          expect.objectContaining({
            feedType: 'FEED_SYRUP',
            amount: 10,
            unit: 'kg',
            batchNumber: 'L-2026-09',
            userId: staffId,
          }),
        );
      }
      expect(
        await prisma.domainEvent.count({
          where: {
            type: 'FeedingRecorded',
            payload: { path: ['bulkId'], equals: bulkId },
          },
        }),
      ).toBe(2);
      expect(
        await prisma.auditLog.count({
          where: {
            entityType: 'Feeding',
            action: 'CREATE',
            entityId: { in: records.map((record) => record.id) },
          },
        }),
      ).toBe(2);
    });

    it('bulk rejects the whole batch when one colony has ended and names it', async () => {
      const before = await storedFeedings();

      const response = await postBulk(staffToken, {
        ...shared,
        colonyIds: [...bulkColonyIds, endedColonyId],
      }).expect(400);

      expect(
        (response.body as { invalidColonyIds: string[] }).invalidColonyIds,
      ).toEqual([endedColonyId]);
      expect(await storedFeedings()).toBe(before);
    });

    it('bulk rejects a duplicate colony', () =>
      postBulk(staffToken, {
        ...shared,
        colonyIds: [bulkColonyIds[0], bulkColonyIds[0]],
      }).expect(400));

    it('bulk rejects a role without feedings:create', () =>
      postBulk(readonlyToken, { ...shared, colonyIds: bulkColonyIds }).expect(
        403,
      ));
  });
});