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 ColonyStatsBody {
  byStatus: { status: string; count: number }[];
  lossesByYear: Record<string, number>;
}

interface QueenStatsBody {
  totalActive: number;
  evaluationAverages: { queenId: string; honeyYield: number }[];
}

interface ApiaryStatsBody {
  apiaryId: string;
  totalHoneyKg: number;
}

interface VarroaStatsBody {
  measurements: { colonyId: string; miteCount: number }[];
}

interface HoneyStatsBody {
  totalHarvestKg: number;
  yieldPerApiary: Record<string, number>;
}

interface FeedingStatsBody {
  byColony: Record<string, number>;
}

describe('Statistics (e2e)', () => {
  let app: INestApplication<App>;
  let prisma: PrismaService;
  const beekeeperEmail = `statistics-e2e-beekeeper-${Date.now()}@example.com`;
  const password = 'SuperSecret123!';
  let beekeeperId: string;
  let beekeeperToken: string;
  let apiaryId: string;
  let colonyId: string;
  let queenId: string;
  let evaluationId: string;
  let varroaId: string;
  let treatmentId: string;
  let feedingId: string;
  let harvestId: 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: `Statistik-Stand ${Date.now()}` },
    });
    apiaryId = apiary.id;
    const colony = await prisma.colony.create({
      data: {
        code: `V-STAT-${Date.now()}`,
        apiaryId,
        colonyType: 'PRODUCTION_COLONY',
      },
    });
    colonyId = colony.id;
    const queen = await prisma.queen.create({
      data: { code: `K-STAT-${Date.now()}` },
    });
    queenId = queen.id;
    const evaluation = await prisma.queenEvaluation.create({
      data: {
        queenId,
        colonyId,
        date: new Date('2026-05-01'),
        colonyStrength: 4,
        gentleness: 4,
        combBuild: 4,
        swarmingTendency: 2,
        broodPattern: 4,
        honeyYield: 5,
        userId: beekeeperId,
      },
    });
    evaluationId = evaluation.id;
    const varroa = await prisma.varroaMeasurement.create({
      data: {
        colonyId,
        userId: beekeeperId,
        date: new Date('2026-06-01'),
        method: 'POWDERED_SUGAR',
        miteCount: 3,
      },
    });
    varroaId = varroa.id;
    const treatment = await prisma.treatment.create({
      data: {
        colonyId,
        userId: beekeeperId,
        date: new Date('2026-06-05'),
        product: 'Ameisensaeure',
      },
    });
    treatmentId = treatment.id;
    const feeding = await prisma.feeding.create({
      data: {
        colonyId,
        userId: beekeeperId,
        date: new Date('2026-09-01'),
        feedType: 'SUGAR_WATER',
        amount: 7,
        unit: 'l',
      },
    });
    feedingId = feeding.id;
    const harvest = await prisma.harvest.create({
      data: {
        apiaryId,
        userId: beekeeperId,
        date: new Date('2026-07-01'),
        netWeight: 12,
      },
    });
    harvestId = harvest.id;
  });

  afterAll(async () => {
    await prisma.harvest.deleteMany({ where: { id: harvestId } });
    await prisma.feeding.deleteMany({ where: { id: feedingId } });
    await prisma.treatment.deleteMany({ where: { id: treatmentId } });
    await prisma.varroaMeasurement.deleteMany({ where: { id: varroaId } });
    await prisma.queenEvaluation.deleteMany({ where: { id: evaluationId } });
    await prisma.queen.deleteMany({ where: { id: queenId } });
    await prisma.colony.deleteMany({ where: { id: colonyId } });
    await prisma.apiary.deleteMany({ where: { id: apiaryId } });
    await prisma.refreshToken.deleteMany({ where: { userId: beekeeperId } });
    await prisma.auditLog.deleteMany({ where: { userId: beekeeperId } });
    await prisma.user.deleteMany({ where: { id: beekeeperId } });
    await app.close();
  });

  it('returns colony status breakdown', async () => {
    const response = await request(app.getHttpServer())
      .get('/api/v1/statistics/colonies')
      .set('Authorization', `Bearer ${beekeeperToken}`)
      .expect(200);
    const body = response.body as ColonyStatsBody;
    expect(
      body.byStatus.some((row) => row.status === 'ACTIVE' && row.count >= 1),
    ).toBe(true);
  });

  it('returns queen evaluation averages including the fixture queen', async () => {
    const response = await request(app.getHttpServer())
      .get('/api/v1/statistics/queens')
      .set('Authorization', `Bearer ${beekeeperToken}`)
      .expect(200);
    const body = response.body as QueenStatsBody;
    const row = body.evaluationAverages.find(
      (entry) => entry.queenId === queenId,
    );
    expect(row?.honeyYield).toBe(5);
  });

  it('returns per-apiary honey totals including the fixture harvest', async () => {
    const response = await request(app.getHttpServer())
      .get('/api/v1/statistics/apiaries')
      .set('Authorization', `Bearer ${beekeeperToken}`)
      .expect(200);
    const body = response.body as ApiaryStatsBody[];
    const row = body.find((entry) => entry.apiaryId === apiaryId);
    expect(row?.totalHoneyKg).toBe(12);
  });

  it('returns varroa measurements including the fixture value', async () => {
    const response = await request(app.getHttpServer())
      .get('/api/v1/statistics/varroa')
      .set('Authorization', `Bearer ${beekeeperToken}`)
      .expect(200);
    const body = response.body as VarroaStatsBody;
    expect(
      body.measurements.some(
        (entry) => entry.colonyId === colonyId && entry.miteCount === 3,
      ),
    ).toBe(true);
  });

  it('returns honey yield aggregates including the fixture apiary', async () => {
    const response = await request(app.getHttpServer())
      .get('/api/v1/statistics/honey')
      .set('Authorization', `Bearer ${beekeeperToken}`)
      .expect(200);
    const body = response.body as HoneyStatsBody;
    expect(body.yieldPerApiary[apiaryId]).toBe(12);
  });

  it('returns feeding totals per colony including the fixture value', async () => {
    const response = await request(app.getHttpServer())
      .get('/api/v1/statistics/feeding')
      .set('Authorization', `Bearer ${beekeeperToken}`)
      .expect(200);
    const body = response.body as FeedingStatsBody;
    expect(body.byColony[colonyId]).toBe(7);
  });
});