import Location from '../../../src/models/Location';
import { createTestDatabase } from '../../setup';
import { Database } from 'sqlite3';

describe('Location Model', () => {
  let db: Database;
  let locationModel: Location;

  beforeEach(async () => {
    db = await createTestDatabase();
    locationModel = new Location(db);
  });

  afterEach((done) => {
    db.close(done);
  });

  describe('create', () => {
    it('should create a new location with all fields', async () => {
      const locationData = {
        address: '123 Main St, Grand Rapids, MI',
        latitude: 42.9634,
        longitude: -85.6681,
        description: 'Black ice present'
      };

      const result = await locationModel.create(locationData);

      expect(result).toMatchObject({
        id: 1,
        address: locationData.address,
        latitude: locationData.latitude,
        longitude: locationData.longitude,
        description: locationData.description
      });
    });

    it('should create a location with only required address field', async () => {
      const locationData = {
        address: 'Main St & Oak Ave'
      };

      const result = await locationModel.create(locationData);

      expect(result).toMatchObject({
        id: 1,
        address: locationData.address
      });
    });

    it('should handle undefined optional fields', async () => {
      const locationData = {
        address: 'Test Address',
        latitude: undefined,
        longitude: undefined,
        description: undefined
      };

      const result = await locationModel.create(locationData);

      expect(result).toMatchObject({
        id: 1,
        address: locationData.address
      });
    });
  });

  describe('getActive', () => {
    beforeEach(async () => {
      // Insert test data with different timestamps
      const now = new Date();
      const twoHoursAgo = new Date(now.getTime() - 2 * 60 * 60 * 1000);
      const fiftyHoursAgo = new Date(now.getTime() - 50 * 60 * 60 * 1000);

      // Active location (within 48 hours)
      await new Promise<void>((resolve, reject) => {
        db.run(
          'INSERT INTO locations (address, created_at) VALUES (?, ?)',
          ['Active Location', twoHoursAgo.toISOString()],
          (err) => err ? reject(err) : resolve()
        );
      });

      // Expired location (over 48 hours)
      await new Promise<void>((resolve, reject) => {
        db.run(
          'INSERT INTO locations (address, created_at) VALUES (?, ?)',
          ['Expired Location', fiftyHoursAgo.toISOString()],
          (err) => err ? reject(err) : resolve()
        );
      });

      // Persistent location (expired but persistent)
      await new Promise<void>((resolve, reject) => {
        db.run(
          'INSERT INTO locations (address, created_at, persistent) VALUES (?, ?, ?)',
          ['Persistent Location', fiftyHoursAgo.toISOString(), 1],
          (err) => err ? reject(err) : resolve()
        );
      });
    });

    it('should return only active and persistent locations', async () => {
      const activeLocations = await locationModel.getActive();

      expect(activeLocations).toHaveLength(2);
      expect(activeLocations.map(l => l.address)).toContain('Active Location');
      expect(activeLocations.map(l => l.address)).toContain('Persistent Location');
      expect(activeLocations.map(l => l.address)).not.toContain('Expired Location');
    });

    it('should respect custom hours threshold', async () => {
      const activeLocations = await locationModel.getActive(1); // 1 hour threshold

      expect(activeLocations).toHaveLength(1);
      expect(activeLocations[0].address).toBe('Persistent Location');
    });
  });

  describe('getAll', () => {
    beforeEach(async () => {
      await locationModel.create({ address: 'Location 1' });
      await locationModel.create({ address: 'Location 2' });
      await locationModel.create({ address: 'Location 3' });
    });

    it('should return all locations', async () => {
      const allLocations = await locationModel.getAll();

      expect(allLocations).toHaveLength(3);
      expect(allLocations.map(l => l.address)).toEqual(
        expect.arrayContaining(['Location 1', 'Location 2', 'Location 3'])
      );
    });

    it('should return locations in reverse chronological order', async () => {
      const allLocations = await locationModel.getAll();

      // Check that we have all locations and they're ordered by created_at DESC
      expect(allLocations).toHaveLength(3);

      // The query uses ORDER BY created_at DESC, so the most recent should be first
      // Since they're created in the same moment, check that ordering is consistent
      expect(allLocations[0]).toHaveProperty('id');
      expect(allLocations[1]).toHaveProperty('id');
      expect(allLocations[2]).toHaveProperty('id');
    });
  });

  describe('update', () => {
    let locationId: number;

    beforeEach(async () => {
      const location = await locationModel.create({
        address: 'Original Address',
        description: 'Original Description'
      });
      locationId = location.id;
    });

    it('should update a location successfully', async () => {
      const updateData = {
        address: 'Updated Address',
        latitude: 42.9634,
        longitude: -85.6681,
        description: 'Updated Description'
      };

      const result = await locationModel.update(locationId, updateData);

      expect(result.changes).toBe(1);
    });

    it('should return 0 changes for non-existent location', async () => {
      const updateData = {
        address: 'Updated Address'
      };

      const result = await locationModel.update(99999, updateData);

      expect(result.changes).toBe(0);
    });
  });

  describe('togglePersistent', () => {
    let locationId: number;

    beforeEach(async () => {
      const location = await locationModel.create({
        address: 'Test Location'
      });
      locationId = location.id;
    });

    it('should toggle persistent to true', async () => {
      const result = await locationModel.togglePersistent(locationId, true);

      expect(result.changes).toBe(1);
    });

    it('should toggle persistent to false', async () => {
      const result = await locationModel.togglePersistent(locationId, false);

      expect(result.changes).toBe(1);
    });

    it('should return 0 changes for non-existent location', async () => {
      const result = await locationModel.togglePersistent(99999, true);

      expect(result.changes).toBe(0);
    });
  });

  describe('delete', () => {
    let locationId: number;

    beforeEach(async () => {
      const location = await locationModel.create({
        address: 'To Be Deleted'
      });
      locationId = location.id;
    });

    it('should delete a location successfully', async () => {
      const result = await locationModel.delete(locationId);

      expect(result.changes).toBe(1);
    });

    it('should return 0 changes for non-existent location', async () => {
      const result = await locationModel.delete(99999);

      expect(result.changes).toBe(0);
    });
  });

  describe('cleanupExpired', () => {
    beforeEach(async () => {
      const now = new Date();
      const fiftyHoursAgo = new Date(now.getTime() - 50 * 60 * 60 * 1000);

      // Expired non-persistent location
      await new Promise<void>((resolve, reject) => {
        db.run(
          'INSERT INTO locations (address, created_at, persistent) VALUES (?, ?, ?)',
          ['Expired Non-Persistent', fiftyHoursAgo.toISOString(), 0],
          (err) => err ? reject(err) : resolve()
        );
      });

      // Expired persistent location
      await new Promise<void>((resolve, reject) => {
        db.run(
          'INSERT INTO locations (address, created_at, persistent) VALUES (?, ?, ?)',
          ['Expired Persistent', fiftyHoursAgo.toISOString(), 1],
          (err) => err ? reject(err) : resolve()
        );
      });

      // Recent location
      await locationModel.create({ address: 'Recent Location' });
    });

    it('should delete only expired non-persistent locations', async () => {
      const result = await locationModel.cleanupExpired();

      expect(result.changes).toBe(1);

      const remaining = await locationModel.getAll();
      expect(remaining).toHaveLength(2);
      expect(remaining.map(l => l.address)).toContain('Expired Persistent');
      expect(remaining.map(l => l.address)).toContain('Recent Location');
    });
  });
});