import { NotFoundException } from '@nestjs/common';
import { ColoniesService } from './colonies.service';
import { PrismaService } from '../prisma/prisma.service';
import { AuditLogService } from '../audit/audit-log.service';

describe('ColoniesService', () => {
  let service: ColoniesService;
  let tx: {
    colony: { create: jest.Mock; update: jest.Mock; findUnique: jest.Mock };
    colonyApiaryHistory: { create: jest.Mock };
    colonyLineage: { create: jest.Mock };
  };
  let prisma: {
    colony: {
      findMany: jest.Mock;
      findUnique: jest.Mock;
      create: jest.Mock;
      update: jest.Mock;
    };
    colonyApiaryHistory: { findMany: jest.Mock };
    queenColonyHistory: { findMany: jest.Mock };
    colonyLineage: { findMany: jest.Mock };
    $transaction: jest.Mock;
  };
  let auditLog: { record: jest.Mock };

  const parentColony = {
    id: 'colony-1',
    code: 'V-001',
    apiaryId: 'apiary-1',
    status: 'ACTIVE',
    deactivatedAt: null,
  };

  beforeEach(() => {
    tx = {
      colony: { create: jest.fn(), update: jest.fn(), findUnique: jest.fn() },
      colonyApiaryHistory: { create: jest.fn() },
      colonyLineage: { create: jest.fn() },
    };
    prisma = {
      colony: {
        findMany: jest.fn(),
        findUnique: jest.fn(),
        create: jest.fn(),
        update: jest.fn(),
      },
      colonyApiaryHistory: { findMany: jest.fn() },
      queenColonyHistory: { findMany: jest.fn() },
      colonyLineage: { findMany: jest.fn() },
      $transaction: jest.fn((callback: (txArg: typeof tx) => unknown) =>
        callback(tx),
      ),
    };
    auditLog = { record: jest.fn().mockResolvedValue(undefined) };
    service = new ColoniesService(
      prisma as unknown as PrismaService,
      auditLog as unknown as AuditLogService,
    );
  });

  it('findById throws NotFoundException when missing', async () => {
    prisma.colony.findUnique.mockResolvedValue(null);
    await expect(service.findById('missing')).rejects.toBeInstanceOf(
      NotFoundException,
    );
  });

  it('move updates the apiary and records apiary history', async () => {
    prisma.colony.findUnique.mockResolvedValue(parentColony);
    tx.colony.update.mockResolvedValue({
      ...parentColony,
      apiaryId: 'apiary-2',
    });
    tx.colonyApiaryHistory.create.mockResolvedValue({});

    const result = await service.move(
      'colony-1',
      { apiaryId: 'apiary-2' },
      'user-1',
    );

    expect(result.apiaryId).toBe('apiary-2');
    const [[historyArg]] = tx.colonyApiaryHistory.create.mock.calls as [
      [{ data: { colonyId: string; apiaryId: string } }],
    ];
    expect(historyArg.data.colonyId).toBe('colony-1');
    expect(historyArg.data.apiaryId).toBe('apiary-2');
  });

  it('split creates a new colony and a SPLIT lineage entry', async () => {
    prisma.colony.findUnique.mockResolvedValue(parentColony);
    const child = { id: 'colony-2', code: 'V-001-A', apiaryId: 'apiary-1' };
    tx.colony.create.mockResolvedValue(child);
    tx.colonyLineage.create.mockResolvedValue({});

    const result = await service.split(
      'colony-1',
      { code: 'V-001-A', colonyType: 'NUCLEUS_COLONY' },
      'user-1',
    );

    expect(result).toEqual(child);
    const [[lineageArg]] = tx.colonyLineage.create.mock.calls as [
      [{ data: { type: string; fromColonyId: string; toColonyId: string } }],
    ];
    expect(lineageArg.data.type).toBe('SPLIT');
    expect(lineageArg.data.fromColonyId).toBe('colony-1');
    expect(lineageArg.data.toColonyId).toBe('colony-2');
  });

  it('merge marks the merged colony as MERGED and records a MERGE lineage entry', async () => {
    prisma.colony.findUnique
      .mockResolvedValueOnce(parentColony)
      .mockResolvedValueOnce({
        ...parentColony,
        id: 'colony-1',
      });
    tx.colony.findUnique.mockResolvedValue({
      id: 'colony-3',
      status: 'ACTIVE',
    });
    tx.colony.update.mockResolvedValue({});
    tx.colonyLineage.create.mockResolvedValue({});

    await service.merge(
      'colony-1',
      { mergedColonyIds: ['colony-3'] },
      'user-1',
    );

    const [[updateArg]] = tx.colony.update.mock.calls as [
      [{ where: { id: string }; data: { status: string } }],
    ];
    expect(updateArg.where.id).toBe('colony-3');
    expect(updateArg.data.status).toBe('MERGED');

    const [[lineageArg]] = tx.colonyLineage.create.mock.calls as [
      [{ data: { type: string; fromColonyId: string; toColonyId: string } }],
    ];
    expect(lineageArg.data.type).toBe('MERGE');
    expect(lineageArg.data.fromColonyId).toBe('colony-3');
    expect(lineageArg.data.toColonyId).toBe('colony-1');
  });

  it('dissolve sets status DISSOLVED and records DEACTIVATE', async () => {
    prisma.colony.findUnique.mockResolvedValue(parentColony);
    prisma.colony.update.mockResolvedValue({
      ...parentColony,
      status: 'DISSOLVED',
    });

    const result = await service.dissolve('colony-1', 'user-1');

    expect(result.status).toBe('DISSOLVED');
    expect(auditLog.record).toHaveBeenCalledWith(
      expect.objectContaining({ action: 'DEACTIVATE' }),
    );
  });
});