import { DashboardService } from './dashboard.service';
import { PrismaService } from '../prisma/prisma.service';

describe('DashboardService', () => {
  let service: DashboardService;
  let prisma: {
    apiary: { count: jest.Mock };
    colony: { count: jest.Mock; findMany: jest.Mock };
    queen: { count: jest.Mock };
    task: { count: jest.Mock; findMany: jest.Mock };
    honeyBatch: { count: jest.Mock };
    stockItem: { findMany: jest.Mock };
  };

  beforeEach(() => {
    prisma = {
      apiary: { count: jest.fn().mockResolvedValue(2) },
      colony: {
        count: jest.fn().mockResolvedValue(5),
        findMany: jest.fn().mockResolvedValue([]),
      },
      queen: { count: jest.fn().mockResolvedValue(4) },
      task: {
        count: jest.fn().mockResolvedValue(3),
        findMany: jest.fn().mockResolvedValue([]),
      },
      honeyBatch: { count: jest.fn().mockResolvedValue(1) },
      stockItem: { findMany: jest.fn().mockResolvedValue([]) },
    };
    service = new DashboardService(prisma as unknown as PrismaService);
  });

  it('summary counts low-stock items below their minimum threshold', async () => {
    prisma.stockItem.findMany.mockResolvedValue([
      { id: 'item-1', quantity: 2, minThreshold: 5 },
      { id: 'item-2', quantity: 10, minThreshold: 5 },
    ]);

    const summary = await service.summary();

    expect(summary.stockItemsLowCount).toBe(1);
    expect(summary.apiariesActive).toBe(2);
    expect(summary.coloniesActive).toBe(5);
  });

  it('alerts flags overdue tasks, attention colonies, and low stock', async () => {
    prisma.task.findMany.mockResolvedValue([
      { id: 'task-1', title: 'Beute prüfen' },
    ]);
    prisma.colony.findMany.mockResolvedValue([
      { id: 'colony-1', code: 'V-001', status: 'WEAK' },
    ]);
    prisma.stockItem.findMany.mockResolvedValue([
      { id: 'item-1', name: 'Zuckerlösung', quantity: 2, minThreshold: 5 },
    ]);

    const alerts = await service.alerts();

    expect(alerts).toHaveLength(3);
    expect(alerts.map((alert) => alert.type)).toEqual([
      'OVERDUE_TASK',
      'COLONY_ATTENTION',
      'LOW_STOCK',
    ]);
  });
});