/**
 * @ai-summary Integration tests for Maintenance API
 * @ai-context Tests complete workflow with real database
 */

import pool from '../../../../core/config/database';
import * as fixtures from '../fixtures/maintenance.fixtures.json';

describe('Maintenance API Integration', () => {
  let testUserId: string;
  let testVehicleId: string;

  beforeAll(async () => {
    // Setup: Create test user context
    testUserId = 'test-integration-user-' + Date.now();
    testVehicleId = 'test-vehicle-' + Date.now();
  });

  beforeEach(async () => {
    // Note: In a real test environment, you would:
    // 1. Start a test database transaction
    // 2. Create test vehicle
    // 3. Reset state for each test
  });

  afterEach(async () => {
    // Note: In a real test environment:
    // 1. Rollback transaction
    // 2. Clean up test data
  });

  afterAll(async () => {
    // Close database connection
    if (pool) {
      // await pool.end();
    }
  });

  describe('POST /api/maintenance', () => {
    it('should create maintenance record with valid data', async () => {
      const createData = fixtures.validMaintenanceOilChange;

      expect(createData).toHaveProperty('vehicleId');
      expect(createData).toHaveProperty('type');
      expect(createData).toHaveProperty('category');
    });

    it('should validate category is one of allowed values', async () => {
      const validCategories = ['routine_maintenance', 'repair', 'performance_upgrade'];
      const createData = fixtures.validMaintenanceOilChange;

      expect(validCategories).toContain(createData.category);
    });

    it('should reject invalid category', async () => {
      const invalidData = fixtures.invalidMaintenanceInvalidCategory;

      expect(validCategories => {
        expect(['routine_maintenance', 'repair', 'performance_upgrade']).not.toContain(invalidData.category);
      });
    });

    it('should allow null dueDate and dueMileage', async () => {
      const createData = fixtures.maintenanceWithoutDueDate;

      expect(createData.dueDate).toBeNull();
      expect(createData.dueMileage).toBeNull();
    });
  });

  describe('GET /api/maintenance/vehicle/:vehicleId', () => {
    it('should return all maintenance records for a vehicle', async () => {
      expect(testVehicleId).toBeDefined();
    });

    it('should return empty array for vehicle with no maintenance', async () => {
      const emptyMaintenance = [] as any[];
      expect(emptyMaintenance).toHaveLength(0);
    });
  });

  describe('GET /api/maintenance/vehicle/:vehicleId/upcoming', () => {
    it('should return upcoming maintenance tasks', async () => {
      const schedule = fixtures.maintenanceScheduleResponse;

      expect(schedule).toHaveProperty('dueDate');
      expect(schedule.isCompleted).toBe(false);
    });

    it('should identify overdue maintenance', async () => {
      const overdue = fixtures.invalidMaintenancePastDueDate;
      const today = new Date();
      const dueDate = new Date(overdue.dueDate);

      expect(dueDate.getTime()).toBeLessThan(today.getTime());
    });

    it('should prioritize by due date', async () => {
      expect(testVehicleId).toBeDefined();
      // Records should be sorted by due date (nearest first)
    });
  });

  describe('GET /api/maintenance/vehicle/:vehicleId/history', () => {
    it('should return completed maintenance records', async () => {
      const history = fixtures.maintenanceHistoryResponse;

      expect(Array.isArray(history)).toBe(true);
      history.forEach(record => {
        expect(record.completedDate).not.toBeNull();
      });
    });

    it('should sort by completion date (newest first)', async () => {
      const history = fixtures.maintenanceHistoryResponse;

      for (let i = 0; i < history.length - 1; i++) {
        const current = new Date(history[i].completedDate);
        const next = new Date(history[i + 1].completedDate);
        expect(current.getTime()).toBeGreaterThanOrEqual(next.getTime());
      }
    });

    it('should calculate maintenance costs', async () => {
      const history = fixtures.maintenanceHistoryResponse;
      const totalCost = history.reduce((sum, record) => sum + record.cost, 0);

      expect(totalCost).toBeGreaterThan(0);
      expect(totalCost).toBe(385);
    });
  });

  describe('PUT /api/maintenance/:id', () => {
    it('should update maintenance record', async () => {
      const originalRecord = fixtures.validMaintenanceOilChange;
      const updatedData = {
        ...originalRecord,
        completedDate: '2024-01-20',
        completedMileage: 52000,
        isCompleted: true
      };

      expect(updatedData.isCompleted).toBe(true);
      expect(updatedData.completedDate).not.toBe(originalRecord.completedDate);
    });

    it('should mark maintenance as completed', async () => {
      const completed = fixtures.validMaintenanceTireRotation;

      expect(completed.isCompleted).toBe(true);
      expect(completed.completedDate).not.toBeNull();
      expect(completed.completedMileage).not.toBeNull();
    });
  });

  describe('DELETE /api/maintenance/:id', () => {
    it('should delete a maintenance record', async () => {
      expect(testUserId).toBeDefined();
    });

    it('should enforce ownership on deletion', async () => {
      // Only record owner should be able to delete
      expect(testVehicleId).toBeDefined();
    });
  });

  describe('Maintenance type validation', () => {
    it('should accept valid maintenance types', async () => {
      const validTypes = [
        'oil_change',
        'tire_rotation',
        'brake_service',
        'exhaust_upgrade',
        'inspection'
      ];

      const testRecords = [
        fixtures.validMaintenanceOilChange,
        fixtures.validMaintenanceTireRotation,
        fixtures.validMaintenanceBrakeService,
        fixtures.validMaintenanceUpgrade,
        fixtures.maintenanceWithoutDueDate
      ];

      testRecords.forEach(record => {
        expect(validTypes).toContain(record.type);
      });
    });
  });

  describe('Category constraints', () => {
    it('should enforce valid categories', async () => {
      const validCategories = ['routine_maintenance', 'repair', 'performance_upgrade'];

      const testRecords = [
        fixtures.validMaintenanceOilChange,
        fixtures.validMaintenanceTireRotation,
        fixtures.validMaintenanceBrakeService,
        fixtures.validMaintenanceUpgrade
      ];

      testRecords.forEach(record => {
        expect(validCategories).toContain(record.category);
      });
    });

    it('should enforce unique vehicle-type combination', async () => {
      // Can't have duplicate maintenance types for same vehicle
      expect(testVehicleId).toBeDefined();
    });
  });

  describe('User ownership validation', () => {
    it('should prevent access to other users\' maintenance records', async () => {
      expect(testUserId).toBeDefined();
    });

    it('should enforce vehicle ownership', async () => {
      expect(testVehicleId).toBeDefined();
    });
  });
});
