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 HoneyBatchBody {
  amount: number | null;
  status: string;
}

interface BottlingBatchBody {
  id: string;
  totalAmount: number;
  lotNumber: string;
  warnings: unknown[];
}

interface RecordedEvent {
  type: string;
  payload: unknown;
  actorUserId: string | null;
}

describe('Bottling (e2e)', () => {
  let app: INestApplication<App>;
  let prisma: PrismaService;
  const beekeeperEmail = `bottling-e2e-beekeeper-${Date.now()}@example.com`;
  const password = 'SuperSecret123!';
  let beekeeperId: string;
  let beekeeperToken: string;
  // Removing a bottling needs bottling-batch:delete, which BEEKEEPER lacks.
  const adminEmail = `bottling-e2e-admin-${Date.now()}@example.com`;
  let adminId: string;
  let adminToken: string;
  let apiaryId: string;
  let colonyId: string;
  let harvestId: string;
  let extractionId: string;
  let honeyBatchId: string;
  let bottlingBatchId: string;
  const seenEventIds = new Set<string>();

  /**
   * The events recorded on the bottling since the last call, by type - one
   * request's events share a correlation id.
   */
  async function newEventsOf(id: string): Promise<RecordedEvent[]> {
    const events = (
      await prisma.domainEvent.findMany({
        where: { aggregateType: 'BottlingBatch', aggregateId: id },
        select: {
          id: true,
          type: true,
          payload: true,
          actorUserId: true,
          correlationId: true,
        },
      })
    ).filter((event) => !seenEventIds.has(event.id));
    events.forEach((event) => seenEventIds.add(event.id));
    expect(new Set(events.map((event) => event.correlationId)).size).toBe(1);
    return events
      .map(({ type, payload, actorUserId }) => ({ type, payload, actorUserId }))
      .sort((a, b) => a.type.localeCompare(b.type));
  }

  async function honeyBatchAmount(): Promise<number | null> {
    const response = await request(app.getHttpServer())
      .get(`/api/v1/honey-batches/${honeyBatchId}`)
      .set('Authorization', `Bearer ${beekeeperToken}`)
      .expect(200);
    return (response.body as HoneyBatchBody).amount;
  }

  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 admin = await prisma.user.create({
      data: {
        email: adminEmail,
        passwordHash,
        name: 'Admin',
        role: { connect: { key: 'ADMIN' } },
      },
    });
    adminId = admin.id;
    adminToken = (await login(app, adminEmail, 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;
    const harvest = await prisma.harvest.create({
      data: { apiaryId, date: new Date(), userId: beekeeperId },
    });
    harvestId = harvest.id;
    await prisma.harvestColony.create({ data: { harvestId, colonyId } });
    const extraction = await prisma.extraction.create({
      data: { date: new Date(), userId: beekeeperId },
    });
    extractionId = extraction.id;
    await prisma.extractionHarvest.create({
      data: { extractionId, harvestId },
    });
    const honeyBatch = await prisma.honeyBatch.create({
      data: {
        batchNumber: `HC-${Date.now()}`,
        extractionId,
        amount: 25,
        // The movement book keeps this batch: bookings need a start amount.
        initialAmount: 25,
        // Below the warning limit: this file expects no quality warning.
        waterContent: 17,
      },
    });
    honeyBatchId = honeyBatch.id;
  });

  afterAll(async () => {
    if (bottlingBatchId) {
      await prisma.domainEvent.deleteMany({
        where: {
          aggregateType: 'BottlingBatch',
          aggregateId: bottlingBatchId,
        },
      });
      await prisma.bottlingBatch.deleteMany({ where: { id: bottlingBatchId } });
    }
    await prisma.batchMovement.deleteMany({ where: { honeyBatchId } });
    await prisma.honeyBatch.deleteMany({ where: { id: honeyBatchId } });
    await prisma.extractionHarvest.deleteMany({ where: { extractionId } });
    await prisma.extraction.deleteMany({ where: { id: extractionId } });
    await prisma.harvestColony.deleteMany({ where: { harvestId } });
    await prisma.harvest.deleteMany({ where: { id: harvestId } });
    await prisma.colony.deleteMany({ where: { id: colonyId } });
    await prisma.apiary.deleteMany({ where: { id: apiaryId } });
    const userIds = [beekeeperId, adminId].filter(Boolean);
    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 app.close();
  });

  it('rejects a bottling amount exceeding the available honey batch amount', () => {
    return request(app.getHttpServer())
      .post('/api/v1/bottling-batches')
      .set('Authorization', `Bearer ${beekeeperToken}`)
      .send({
        honeyBatchId,
        date: new Date().toISOString(),
        jarSize: 500,
        jarCount: 1000,
        bestBeforeDate: new Date().toISOString(),
        lotNumber: `L-${Date.now()}`,
      })
      .expect(400);
  });

  it('bottles a honey batch and reduces its remaining amount', async () => {
    const response = await request(app.getHttpServer())
      .post('/api/v1/bottling-batches')
      .set('Authorization', `Bearer ${beekeeperToken}`)
      .send({
        honeyBatchId,
        date: new Date().toISOString(),
        jarSize: 500,
        jarCount: 50,
        bestBeforeDate: new Date().toISOString(),
        lotNumber: `L-${Date.now()}`,
      })
      .expect(201);
    const bottlingBatch = response.body as BottlingBatchBody;
    bottlingBatchId = bottlingBatch.id;
    expect(bottlingBatch.totalAmount).toBe(25);
    // The harvest behind the honey batch has no withdrawal window.
    expect(bottlingBatch.warnings).toEqual([]);

    const honeyBatchResponse = await request(app.getHttpServer())
      .get(`/api/v1/honey-batches/${honeyBatchId}`)
      .set('Authorization', `Bearer ${beekeeperToken}`)
      .expect(200);
    const honeyBatch = honeyBatchResponse.body as HoneyBatchBody;
    expect(honeyBatch.amount).toBe(0);
    expect(honeyBatch.status).toBe('BOTTLED');
    // The booking in the movement book, in grams, with its bottling.
    const movements = await prisma.batchMovement.findMany({
      where: { honeyBatchId },
    });
    expect(movements).toEqual([
      expect.objectContaining({
        type: 'BOTTLING',
        quantity: -25000,
        sourceBottlingBatchId: bottlingBatchId,
        userId: beekeeperId,
      }),
    ]);
  });

  it('bottling create records BatchBottled and StockChanged together', async () => {
    expect(await newEventsOf(bottlingBatchId)).toEqual([
      {
        type: 'BatchBottled',
        payload: { honeyBatchId },
        actorUserId: beekeeperId,
      },
      {
        type: 'StockChanged',
        payload: {
          bottlingBatchIds: [bottlingBatchId],
          productIds: [],
          rawMaterialKinds: [],
        },
        actorUserId: beekeeperId,
      },
    ]);
  });

  it('a correction records BottlingCorrected and StockChanged together', async () => {
    const corrected = await request(app.getHttpServer())
      .patch(`/api/v1/bottling-batches/${bottlingBatchId}`)
      .set('Authorization', `Bearer ${beekeeperToken}`)
      .send({ jarCount: 40 })
      .expect(200);
    expect((corrected.body as BottlingBatchBody).warnings).toEqual([]);

    // 10 jars of 500 g fewer: 5 kg go back to the honey batch.
    expect(await honeyBatchAmount()).toBe(5);
    expect(await newEventsOf(bottlingBatchId)).toEqual([
      {
        type: 'BottlingCorrected',
        payload: { honeyBatchId, removed: false },
        actorUserId: beekeeperId,
      },
      {
        type: 'StockChanged',
        payload: {
          bottlingBatchIds: [bottlingBatchId],
          productIds: [],
          rawMaterialKinds: [],
        },
        actorUserId: beekeeperId,
      },
    ]);
  });

  it('a removal records BottlingCorrected { removed: true } and StockChanged together', async () => {
    await request(app.getHttpServer())
      .delete(`/api/v1/bottling-batches/${bottlingBatchId}`)
      .set('Authorization', `Bearer ${adminToken}`)
      .expect(200);

    expect(await honeyBatchAmount()).toBe(25);
    expect(await newEventsOf(bottlingBatchId)).toEqual([
      {
        type: 'BottlingCorrected',
        payload: { honeyBatchId, removed: true },
        actorUserId: adminId,
      },
      {
        type: 'StockChanged',
        payload: {
          bottlingBatchIds: [bottlingBatchId],
          productIds: [],
          rawMaterialKinds: [],
        },
        actorUserId: adminId,
      },
    ]);
  });
});