import {
  BLEError,
  BLEErrorCode,
  BLEErrorSeverity,
  BLERecoveryAction,
  BLE_ERROR_MESSAGES,
  BLE_RECOVERY_ACTIONS,
  parseBLEError,
  isBLEError,
  getErrorInfo,
  getRecoveryActionLabel,
  BLELogger,
} from '@/services/ble/errors';

describe('BLEError', () => {
  describe('constructor', () => {
    it('creates error with correct code and default message', () => {
      const error = new BLEError(BLEErrorCode.CONNECTION_FAILED);

      expect(error.code).toBe(BLEErrorCode.CONNECTION_FAILED);
      expect(error.name).toBe('BLEError');
      expect(error.userMessage.title).toBe('Connection Failed');
      expect(error.userMessage.message).toContain('Could not connect');
      expect(error.timestamp).toBeGreaterThan(0);
    });

    it('creates error with custom message', () => {
      const error = new BLEError(BLEErrorCode.CONNECTION_TIMEOUT, {
        message: 'Custom timeout message',
      });

      expect(error.message).toBe('Custom timeout message');
      expect(error.userMessage.title).toBe('Connection Timeout');
    });

    it('creates error with device context', () => {
      const error = new BLEError(BLEErrorCode.DEVICE_NOT_FOUND, {
        deviceId: 'device-123',
        deviceName: 'WP_497_81a14c',
      });

      expect(error.deviceId).toBe('device-123');
      expect(error.deviceName).toBe('WP_497_81a14c');
    });

    it('wraps original error', () => {
      const originalError = new Error('Native BLE error');
      const error = new BLEError(BLEErrorCode.COMMAND_FAILED, {
        originalError,
      });

      expect(error.originalError).toBe(originalError);
    });

    it('sets correct severity for critical errors', () => {
      const permissionError = new BLEError(BLEErrorCode.PERMISSION_DENIED);
      const bluetoothError = new BLEError(BLEErrorCode.BLUETOOTH_DISABLED);

      expect(permissionError.severity).toBe(BLEErrorSeverity.CRITICAL);
      expect(bluetoothError.severity).toBe(BLEErrorSeverity.CRITICAL);
    });

    it('sets correct severity for warning errors', () => {
      const busyError = new BLEError(BLEErrorCode.DEVICE_BUSY);
      const scanError = new BLEError(BLEErrorCode.WIFI_SCAN_IN_PROGRESS);

      expect(busyError.severity).toBe(BLEErrorSeverity.WARNING);
      expect(scanError.severity).toBe(BLEErrorSeverity.WARNING);
    });

    it('sets recovery actions from mapping', () => {
      const connectionError = new BLEError(BLEErrorCode.CONNECTION_FAILED);
      const passwordError = new BLEError(BLEErrorCode.WIFI_PASSWORD_INCORRECT);

      expect(connectionError.recoveryActions).toContain(BLERecoveryAction.RETRY);
      expect(connectionError.recoveryActions).toContain(BLERecoveryAction.MOVE_CLOSER);

      expect(passwordError.recoveryActions).toContain(BLERecoveryAction.CHECK_WIFI_PASSWORD);
    });
  });

  describe('toLogString', () => {
    it('formats error for logging with device name', () => {
      const error = new BLEError(BLEErrorCode.CONNECTION_FAILED, {
        deviceName: 'WP_497_81a14c',
        message: 'Connection failed',
      });

      const logString = error.toLogString();

      expect(logString).toContain('[BLE]');
      expect(logString).toContain('[BLE_CONNECTION_FAILED]');
      expect(logString).toContain('[WP_497_81a14c]');
      expect(logString).toContain('Connection failed');
    });

    it('uses deviceId when deviceName is not available', () => {
      const error = new BLEError(BLEErrorCode.COMMAND_TIMEOUT, {
        deviceId: 'device-123',
      });

      const logString = error.toLogString();

      expect(logString).toContain('[device-123]');
    });
  });

  describe('isRetryable', () => {
    it('returns true for retryable errors', () => {
      const connectionError = new BLEError(BLEErrorCode.CONNECTION_FAILED);
      const timeoutError = new BLEError(BLEErrorCode.COMMAND_TIMEOUT);

      expect(connectionError.isRetryable()).toBe(true);
      expect(timeoutError.isRetryable()).toBe(true);
    });

    it('returns false for non-retryable errors', () => {
      const cancelledError = new BLEError(BLEErrorCode.OPERATION_CANCELLED);
      const alreadyConnectedError = new BLEError(BLEErrorCode.ALREADY_CONNECTED);

      expect(cancelledError.isRetryable()).toBe(false);
      expect(alreadyConnectedError.isRetryable()).toBe(false);
    });
  });

  describe('isSkippable', () => {
    it('returns true for skippable errors in batch operations', () => {
      const commandError = new BLEError(BLEErrorCode.COMMAND_FAILED);
      const rebootError = new BLEError(BLEErrorCode.SENSOR_REBOOT_FAILED);

      expect(commandError.isSkippable()).toBe(true);
      expect(rebootError.isSkippable()).toBe(true);
    });

    it('returns false for non-skippable errors', () => {
      const permissionError = new BLEError(BLEErrorCode.PERMISSION_DENIED);
      const bluetoothError = new BLEError(BLEErrorCode.BLUETOOTH_DISABLED);

      expect(permissionError.isSkippable()).toBe(false);
      expect(bluetoothError.isSkippable()).toBe(false);
    });
  });
});

describe('parseBLEError', () => {
  it('parses permission denied errors', () => {
    const error = new Error('Bluetooth permissions not granted');
    const bleError = parseBLEError(error);

    expect(bleError.code).toBe(BLEErrorCode.PERMISSION_DENIED);
  });

  it('parses bluetooth disabled errors', () => {
    const error = new Error('Bluetooth is disabled');
    const bleError = parseBLEError(error);

    expect(bleError.code).toBe(BLEErrorCode.BLUETOOTH_DISABLED);
  });

  it('parses timeout errors', () => {
    const error = new Error('Connection timeout');
    const bleError = parseBLEError(error);

    expect(bleError.code).toBe(BLEErrorCode.CONNECTION_TIMEOUT);
  });

  it('parses connection in progress errors', () => {
    const error = new Error('Connection already in progress');
    const bleError = parseBLEError(error);

    expect(bleError.code).toBe(BLEErrorCode.CONNECTION_IN_PROGRESS);
  });

  it('parses WiFi password incorrect errors', () => {
    const error = new Error('WiFi password is incorrect');
    const bleError = parseBLEError(error);

    expect(bleError.code).toBe(BLEErrorCode.WIFI_PASSWORD_INCORRECT);
  });

  it('parses WiFi network not found errors', () => {
    const error = new Error('WiFi network not found');
    const bleError = parseBLEError(error);

    expect(bleError.code).toBe(BLEErrorCode.WIFI_NETWORK_NOT_FOUND);
  });

  it('parses device disconnected errors', () => {
    const error = new Error('Device disconnected unexpectedly');
    const bleError = parseBLEError(error);

    expect(bleError.code).toBe(BLEErrorCode.DEVICE_DISCONNECTED);
  });

  it('parses cancelled operation errors', () => {
    const error = new Error('Operation was cancelled');
    const bleError = parseBLEError(error);

    expect(bleError.code).toBe(BLEErrorCode.OPERATION_CANCELLED);
  });

  it('includes device context when provided', () => {
    const error = new Error('Connection timeout');
    const bleError = parseBLEError(error, {
      deviceId: 'device-123',
      deviceName: 'WP_497_81a14c',
    });

    expect(bleError.deviceId).toBe('device-123');
    expect(bleError.deviceName).toBe('WP_497_81a14c');
  });

  it('defaults to unknown error for unrecognized messages', () => {
    const error = new Error('Some random error message');
    const bleError = parseBLEError(error);

    expect(bleError.code).toBe(BLEErrorCode.UNKNOWN_ERROR);
  });

  it('handles non-Error objects', () => {
    const bleError = parseBLEError('string error');

    expect(bleError).toBeInstanceOf(BLEError);
    expect(bleError.code).toBe(BLEErrorCode.UNKNOWN_ERROR);
  });
});

describe('isBLEError', () => {
  it('returns true for BLEError instances', () => {
    const error = new BLEError(BLEErrorCode.CONNECTION_FAILED);

    expect(isBLEError(error)).toBe(true);
  });

  it('returns false for regular Error instances', () => {
    const error = new Error('Regular error');

    expect(isBLEError(error)).toBe(false);
  });

  it('returns false for non-error objects', () => {
    expect(isBLEError('string')).toBe(false);
    expect(isBLEError(null)).toBe(false);
    expect(isBLEError(undefined)).toBe(false);
    expect(isBLEError({})).toBe(false);
  });
});

describe('getErrorInfo', () => {
  it('extracts info from BLEError', () => {
    const error = new BLEError(BLEErrorCode.WIFI_PASSWORD_INCORRECT);
    const info = getErrorInfo(error);

    expect(info.code).toBe(BLEErrorCode.WIFI_PASSWORD_INCORRECT);
    expect(info.title).toBe('Wrong Password');
    expect(info.message).toContain('incorrect');
    expect(info.severity).toBe(BLEErrorSeverity.ERROR);
    expect(info.recoveryActions).toContain(BLERecoveryAction.CHECK_WIFI_PASSWORD);
    expect(info.isRetryable).toBe(true);
  });

  it('parses and extracts info from regular Error', () => {
    const error = new Error('Bluetooth is disabled');
    const info = getErrorInfo(error);

    expect(info.code).toBe(BLEErrorCode.BLUETOOTH_DISABLED);
    expect(info.title).toBe('Bluetooth Disabled');
    expect(info.severity).toBe(BLEErrorSeverity.CRITICAL);
    expect(info.recoveryActions).toContain(BLERecoveryAction.ENABLE_BLUETOOTH);
  });
});

describe('getRecoveryActionLabel', () => {
  it('returns correct labels for all actions', () => {
    expect(getRecoveryActionLabel(BLERecoveryAction.RETRY)).toBe('Retry');
    expect(getRecoveryActionLabel(BLERecoveryAction.SKIP)).toBe('Skip');
    expect(getRecoveryActionLabel(BLERecoveryAction.CANCEL)).toBe('Cancel');
    expect(getRecoveryActionLabel(BLERecoveryAction.ENABLE_BLUETOOTH)).toBe('Enable Bluetooth');
    expect(getRecoveryActionLabel(BLERecoveryAction.GRANT_PERMISSIONS)).toBe('Grant Permission');
    expect(getRecoveryActionLabel(BLERecoveryAction.MOVE_CLOSER)).toBe('Move Closer');
    expect(getRecoveryActionLabel(BLERecoveryAction.CHECK_WIFI_PASSWORD)).toBe('Check Password');
    expect(getRecoveryActionLabel(BLERecoveryAction.CONTACT_SUPPORT)).toBe('Contact Support');
  });
});

describe('BLE_ERROR_MESSAGES', () => {
  it('has messages for all error codes', () => {
    const errorCodes = Object.values(BLEErrorCode);

    for (const code of errorCodes) {
      expect(BLE_ERROR_MESSAGES[code]).toBeDefined();
      expect(BLE_ERROR_MESSAGES[code].title).toBeTruthy();
      expect(BLE_ERROR_MESSAGES[code].message).toBeTruthy();
    }
  });
});

describe('BLE_RECOVERY_ACTIONS', () => {
  it('has recovery actions for all error codes', () => {
    const errorCodes = Object.values(BLEErrorCode);

    for (const code of errorCodes) {
      expect(BLE_RECOVERY_ACTIONS[code]).toBeDefined();
      expect(Array.isArray(BLE_RECOVERY_ACTIONS[code])).toBe(true);
    }
  });
});

describe('BLELogger', () => {
  // Spy on console methods
  const consoleSpy = {
    log: jest.spyOn(console, 'log').mockImplementation(),
    warn: jest.spyOn(console, 'warn').mockImplementation(),
    error: jest.spyOn(console, 'error').mockImplementation(),
  };

  beforeEach(() => {
    jest.clearAllMocks();
    BLELogger.enable();
  });

  afterAll(() => {
    consoleSpy.log.mockRestore();
    consoleSpy.warn.mockRestore();
    consoleSpy.error.mockRestore();
  });

  it('logs messages with BLE prefix', () => {
    BLELogger.log('Test message');

    expect(consoleSpy.log).toHaveBeenCalledWith('[BLE] Test message', '');
  });

  it('logs warnings with BLE prefix', () => {
    BLELogger.warn('Warning message');

    expect(consoleSpy.warn).toHaveBeenCalledWith('[BLE] Warning message', '');
  });

  it('logs errors with BLE prefix', () => {
    BLELogger.error('Error message');

    expect(consoleSpy.error).toHaveBeenCalledWith('[BLE] Error message', '');
  });

  it('logs BLEError with formatted string', () => {
    const error = new BLEError(BLEErrorCode.CONNECTION_FAILED, {
      deviceName: 'WP_497',
    });
    BLELogger.error('Failed', error);

    expect(consoleSpy.error).toHaveBeenCalled();
    const loggedMessage = consoleSpy.error.mock.calls[0][0];
    expect(loggedMessage).toContain('[BLE]');
    expect(loggedMessage).toContain('[BLE_CONNECTION_FAILED]');
    expect(loggedMessage).toContain('[WP_497]');
  });

  it('does not log when disabled', () => {
    BLELogger.disable();
    BLELogger.log('Should not appear');
    BLELogger.warn('Should not appear');
    BLELogger.error('Should not appear');

    expect(consoleSpy.log).not.toHaveBeenCalled();
    expect(consoleSpy.warn).not.toHaveBeenCalled();
    expect(consoleSpy.error).not.toHaveBeenCalled();
  });

  describe('logBatchProgress', () => {
    it('logs batch progress with success indicator', () => {
      BLELogger.logBatchProgress(1, 5, 'WP_497', 'connected', true);

      expect(consoleSpy.log).toHaveBeenCalled();
      const loggedMessage = consoleSpy.log.mock.calls[0][0];
      expect(loggedMessage).toContain('[1/5]');
      expect(loggedMessage).toContain('WP_497');
      expect(loggedMessage).toContain('✓');
      expect(loggedMessage).toContain('connected');
    });

    it('logs batch progress with failure indicator', () => {
      BLELogger.logBatchProgress(2, 5, 'WP_498', 'connection failed', false);

      expect(consoleSpy.log).toHaveBeenCalled();
      const loggedMessage = consoleSpy.log.mock.calls[0][0];
      expect(loggedMessage).toContain('[2/5]');
      expect(loggedMessage).toContain('✗');
    });

    it('logs batch progress with duration', () => {
      BLELogger.logBatchProgress(3, 5, 'WP_499', 'SUCCESS', true, 8500);

      expect(consoleSpy.log).toHaveBeenCalled();
      const loggedMessage = consoleSpy.log.mock.calls[0][0];
      expect(loggedMessage).toContain('(8.5s)');
    });
  });

  describe('logBatchSummary', () => {
    it('logs batch summary with counts', () => {
      BLELogger.logBatchSummary(5, 4, 1, 45000);

      expect(consoleSpy.log).toHaveBeenCalled();
      const loggedMessage = consoleSpy.log.mock.calls[0][0];
      expect(loggedMessage).toContain('4/5 succeeded');
      expect(loggedMessage).toContain('1 failed');
      expect(loggedMessage).toContain('45.0s');
    });
  });
});