import { MockBLEManager } from '@/services/ble/MockBLEManager';
import type { BulkOperationResult, BulkWiFiResult } from '@/services/ble/types';

// Increase timeout for bulk operations (they take time due to mock delays)
jest.setTimeout(15000);

describe('Bulk BLE Operations', () => {
  let bleManager: MockBLEManager;

  beforeEach(() => {
    bleManager = new MockBLEManager();
  });

  afterEach(async () => {
    await bleManager.cleanup();
  });

  describe('bulkDisconnect', () => {
    it('should disconnect multiple devices successfully', async () => {
      // Setup: Connect devices first
      const device1 = 'mock-743';
      const device2 = 'mock-769';

      await bleManager.connectDevice(device1);
      await bleManager.connectDevice(device2);

      // Verify connected
      expect(bleManager.isDeviceConnected(device1)).toBe(true);
      expect(bleManager.isDeviceConnected(device2)).toBe(true);

      // Test: Bulk disconnect
      const results = await bleManager.bulkDisconnect([device1, device2]);

      // Verify results
      expect(results).toHaveLength(2);
      expect(results[0]).toMatchObject({
        deviceId: device1,
        success: true,
      });
      expect(results[1]).toMatchObject({
        deviceId: device2,
        success: true,
      });

      // Verify disconnected
      expect(bleManager.isDeviceConnected(device1)).toBe(false);
      expect(bleManager.isDeviceConnected(device2)).toBe(false);
    });

    it('should handle partial failures gracefully', async () => {
      const validDevice = 'mock-743';
      const invalidDevice = 'non-existent-device';

      await bleManager.connectDevice(validDevice);

      const results = await bleManager.bulkDisconnect([validDevice, invalidDevice]);

      expect(results).toHaveLength(2);

      // Valid device should succeed
      expect(results[0].success).toBe(true);
      expect(results[0].deviceId).toBe(validDevice);

      // Invalid device may succeed (disconnect is idempotent) or report no error
      // This is okay - disconnecting already-disconnected device is not an error
      expect(results[1].deviceId).toBe(invalidDevice);
    });

    it('should return empty array for empty input', async () => {
      const results = await bleManager.bulkDisconnect([]);
      expect(results).toEqual([]);
    });
  });

  describe('bulkReboot', () => {
    it('should reboot multiple devices successfully', async () => {
      const device1 = 'mock-743';
      const device2 = 'mock-769';

      const results = await bleManager.bulkReboot([device1, device2]);

      expect(results).toHaveLength(2);
      expect(results[0]).toMatchObject({
        deviceId: device1,
        success: true,
      });
      expect(results[1]).toMatchObject({
        deviceId: device2,
        success: true,
      });

      // After reboot, devices should be disconnected
      expect(bleManager.isDeviceConnected(device1)).toBe(false);
      expect(bleManager.isDeviceConnected(device2)).toBe(false);
    });

    it('should connect before rebooting if device is not connected', async () => {
      const deviceId = 'mock-743';

      // Device not connected initially
      expect(bleManager.isDeviceConnected(deviceId)).toBe(false);

      const results = await bleManager.bulkReboot([deviceId]);

      expect(results).toHaveLength(1);
      expect(results[0].success).toBe(true);
    });

    it('should return empty array for empty input', async () => {
      const results = await bleManager.bulkReboot([]);
      expect(results).toEqual([]);
    });
  });

  describe('bulkSetWiFi', () => {
    it('should configure WiFi for multiple devices successfully', async () => {
      const devices = [
        { id: 'mock-743', name: 'WP_497_81a14c' },
        { id: 'mock-769', name: 'WP_523_81aad4' },
      ];
      const ssid = 'TestNetwork';
      const password = 'testPassword123';

      const results = await bleManager.bulkSetWiFi(devices, ssid, password);

      expect(results).toHaveLength(2);
      expect(results[0]).toMatchObject({
        deviceId: devices[0].id,
        deviceName: devices[0].name,
        success: true,
      });
      expect(results[1]).toMatchObject({
        deviceId: devices[1].id,
        deviceName: devices[1].name,
        success: true,
      });

      // Devices should be disconnected after reboot
      expect(bleManager.isDeviceConnected(devices[0].id)).toBe(false);
      expect(bleManager.isDeviceConnected(devices[1].id)).toBe(false);
    });

    it('should call progress callback for each device', async () => {
      const devices = [
        { id: 'mock-743', name: 'WP_497_81a14c' },
        { id: 'mock-769', name: 'WP_523_81aad4' },
      ];
      const ssid = 'TestNetwork';
      const password = 'testPassword123';

      const progressEvents: Array<{
        deviceId: string;
        status: string;
      }> = [];

      const onProgress = (
        deviceId: string,
        status: 'connecting' | 'configuring' | 'rebooting' | 'success' | 'error'
      ) => {
        progressEvents.push({ deviceId, status });
      };

      await bleManager.bulkSetWiFi(devices, ssid, password, onProgress);

      // Should have progress events for both devices
      const device1Events = progressEvents.filter(e => e.deviceId === devices[0].id);
      const device2Events = progressEvents.filter(e => e.deviceId === devices[1].id);

      // Each device should go through: connecting -> configuring -> rebooting -> success
      expect(device1Events.length).toBeGreaterThanOrEqual(4);
      expect(device2Events.length).toBeGreaterThanOrEqual(4);

      expect(device1Events.map(e => e.status)).toContain('connecting');
      expect(device1Events.map(e => e.status)).toContain('configuring');
      expect(device1Events.map(e => e.status)).toContain('rebooting');
      expect(device1Events.map(e => e.status)).toContain('success');
    });

    it('should handle errors and continue with remaining devices', async () => {
      const devices = [
        { id: 'mock-743', name: 'WP_497_81a14c' },
        { id: 'invalid-device', name: 'InvalidDevice' },
        { id: 'mock-769', name: 'WP_523_81aad4' },
      ];
      const ssid = 'TestNetwork';
      const password = 'testPassword123';

      const results = await bleManager.bulkSetWiFi(devices, ssid, password);

      expect(results).toHaveLength(3);

      // First device should succeed
      expect(results[0].success).toBe(true);

      // Invalid device should fail
      // (Note: MockBLEManager might still succeed, but real implementation would fail)
      // We're just checking the structure is correct
      expect(results[1].deviceId).toBe('invalid-device');

      // Third device should still be processed
      expect(results[2].deviceId).toBe('mock-769');
    }, 20000); // 20 second timeout for 3 devices

    it('should return empty array for empty input', async () => {
      const results = await bleManager.bulkSetWiFi([], 'TestSSID', 'password');
      expect(results).toEqual([]);
    });

    it('should handle sequential processing correctly', async () => {
      const devices = [
        { id: 'mock-743', name: 'WP_497_81a14c' },
        { id: 'mock-769', name: 'WP_523_81aad4' },
      ];
      const ssid = 'TestNetwork';
      const password = 'testPassword123';

      const startTime = Date.now();
      await bleManager.bulkSetWiFi(devices, ssid, password);
      const endTime = Date.now();

      // Mock delays: connect (800ms) + config (1200ms) + reboot (600ms) = 2600ms per device
      // For 2 devices sequentially: ~5200ms minimum
      const duration = endTime - startTime;

      // Should take at least 4000ms (allowing some margin for test environment)
      expect(duration).toBeGreaterThanOrEqual(4000);
    });
  });

  describe('Bulk operation error handling', () => {
    it('should include error messages in failed results', async () => {
      // This test is more meaningful with RealBLEManager, but we can verify the structure
      const devices = [
        { id: 'mock-743', name: 'WP_497_81a14c' },
      ];

      const results = await bleManager.bulkSetWiFi(devices, '', ''); // Empty credentials

      expect(results).toHaveLength(1);
      if (!results[0].success) {
        expect(results[0].error).toBeDefined();
        expect(typeof results[0].error).toBe('string');
      }
    });

    it('should maintain device name in all result objects', async () => {
      const devices = [
        { id: 'mock-743', name: 'WP_497_81a14c' },
        { id: 'mock-769', name: 'WP_523_81aad4' },
      ];

      const results = await bleManager.bulkDisconnect(devices.map(d => d.id));

      results.forEach((result, index) => {
        expect(result.deviceName).toBeDefined();
        expect(typeof result.deviceName).toBe('string');
      });
    });
  });

  describe('Integration: Multiple bulk operations in sequence', () => {
    it('should handle multiple bulk operations on the same devices', async () => {
      const devices = [
        { id: 'mock-743', name: 'WP_497_81a14c' },
        { id: 'mock-769', name: 'WP_523_81aad4' },
      ];

      // Operation 1: Bulk WiFi config
      const wifiResults = await bleManager.bulkSetWiFi(
        devices,
        'Network1',
        'password1'
      );
      expect(wifiResults.every(r => r.success)).toBe(true);

      // Operation 2: Connect again and reconfigure
      const reconfigResults = await bleManager.bulkSetWiFi(
        devices,
        'Network2',
        'password2'
      );
      expect(reconfigResults.every(r => r.success)).toBe(true);

      // Operation 3: Bulk reboot
      const rebootResults = await bleManager.bulkReboot(devices.map(d => d.id));
      expect(rebootResults.every(r => r.success)).toBe(true);
    }, 30000); // 30 second timeout for multiple sequential operations
  });
});