import { describe, it, expect, vi, beforeEach } from 'vitest';
import { StoresService } from './stores.service.js';

describe(StoresService.name, () => {
  const mockRepo = {
    findByHousehold: vi.fn(),
    findById: vi.fn(),
    create: vi.fn(),
    update: vi.fn(),
    deactivate: vi.fn(),
  };

  let service: StoresService;

  beforeEach(() => {
    vi.clearAllMocks();
    service = new StoresService({ storesRepository: mockRepo as never });
  });

  describe('list', () => {
    it('delegates to repository', async () => {
      const result = { data: [], pagination: { cursor: null, hasMore: false } };
      mockRepo.findByHousehold.mockResolvedValue(result);

      const response = await service.list('hh1', { limit: 20 });

      expect(response).toEqual(result);
      expect(mockRepo.findByHousehold).toHaveBeenCalledWith('hh1', { limit: 20 });
    });
  });

  describe('getById', () => {
    it('returns store when found', async () => {
      const store = { _id: 'st-1', name: 'Walgreens' };
      mockRepo.findById.mockResolvedValue(store);

      expect(await service.getById('st-1', 'hh1')).toEqual(store);
    });

    it('throws NotFoundError when not found', async () => {
      mockRepo.findById.mockResolvedValue(null);

      await expect(service.getById('missing', 'hh1')).rejects.toThrow('Store not found');
    });
  });

  describe('create', () => {
    it('delegates to repository', async () => {
      const store = { _id: 'st-1', name: 'CVS' };
      mockRepo.create.mockResolvedValue(store);

      const result = await service.create({ name: 'CVS', tags: [], isActive: true } as never, 'hh1', 'user-1');

      expect(result).toEqual(store);
      expect(mockRepo.create).toHaveBeenCalledWith(expect.anything(), 'hh1', 'user-1');
    });
  });

  describe('update', () => {
    it('updates and returns store', async () => {
      mockRepo.findById.mockResolvedValue({ _id: 'st-1' });
      const updated = { _id: 'st-1', name: 'CVS' };
      mockRepo.update.mockResolvedValue(updated);

      const result = await service.update('st-1', 'hh1', { name: 'CVS' });

      expect(result).toEqual(updated);
    });

    it('throws NotFoundError on initial lookup failure', async () => {
      mockRepo.findById.mockResolvedValue(null);

      await expect(service.update('missing', 'hh1', {})).rejects.toThrow('Store not found');
    });

    it('throws NotFoundError when update returns null', async () => {
      mockRepo.findById.mockResolvedValue({ _id: 'st-1' });
      mockRepo.update.mockResolvedValue(null);

      await expect(service.update('st-1', 'hh1', {})).rejects.toThrow('Store not found');
    });
  });

  describe('deactivate', () => {
    it('deactivates and returns store', async () => {
      mockRepo.findById.mockResolvedValue({ _id: 'st-1' });
      const deactivated = { _id: 'st-1', isActive: false };
      mockRepo.deactivate.mockResolvedValue(deactivated);

      const result = await service.deactivate('st-1', 'hh1');

      expect(result).toEqual(deactivated);
      expect(mockRepo.deactivate).toHaveBeenCalledWith('st-1', 'hh1');
    });

    it('throws NotFoundError when store not found', async () => {
      mockRepo.findById.mockResolvedValue(null);

      await expect(service.deactivate('missing', 'hh1')).rejects.toThrow('Store not found');
    });

    it('throws NotFoundError when deactivate returns null', async () => {
      mockRepo.findById.mockResolvedValue({ _id: 'st-1' });
      mockRepo.deactivate.mockResolvedValue(null);

      await expect(service.deactivate('st-1', 'hh1')).rejects.toThrow('Store not found');
    });
  });
});