Error Handling

async function handlePTT(channelId: string) {
  const result = await talker.startTalking(channelId);

  if (result.success) {
    // PTT started successfully
    updateUI('talking');
    return;
  }

  // Handle different error codes
  switch (result.code) {
    case 'not_connected':
      // SDK will auto-reconnect
      showToast('Connecting to server...');
      waitForConnection();
      break;

    case 'no_user_id':
      // Developer error - missing userId
      console.error('Configuration error:', result.message);
      break;

    case 'already_talking':
      // Not really an error - already in PTT session
      break;

    case 'channel_busy':
      // Someone else is talking on this channel
      showToast('Channel is busy. Please wait for the current speaker to finish.');
      break;

    case 'error':
      // Show error to user
      showError(result.message);
      break;
  }
}

class ConnectionManager {
  private pendingAction: (() => Promise) | null = null;

  constructor(private talker: TalkerClient) {
    talker.on('connection_change', ({ connected }) => {
      if (connected && this.pendingAction) {
        this.pendingAction();
        this.pendingAction = null;
      }
    });
  }

  async startTalkingWithRetry(channelId: string) {
    const result = await this.talker.startTalking(channelId);

    if (!result.success && result.code === 'not_connected') {
      // Queue the action to retry when connected
      this.pendingAction = () => this.talker.startTalking(channelId);
      showUI('connecting');
    }
  }
}

async function requestMicrophoneAccess(): Promise {
  try {
    const stream = await navigator.mediaDevices.getUserMedia({ audio: true });
    // Success - stop the stream
    stream.getTracks().forEach(track => track.stop());
    return true;
  } catch (error) {
    handleMicrophoneError(error);
    return false;
  }
}

function handleMicrophoneError(error: Error) {
  switch (error.name) {
    case 'NotAllowedError':
      showError(
        'Microphone access denied. Please allow microphone access in your browser settings.',
        { showSettingsButton: true }
      );
      break;

    case 'NotFoundError':
      showError(
        'No microphone found. Please connect a microphone and try again.'
      );
      break;

    case 'NotReadableError':
      showError(
        'Microphone is in use by another application. Please close other apps using the microphone.'
      );
      break;

    case 'OverconstrainedError':
      showError(
        'Could not find a suitable microphone. Please try a different device.'
      );
      break;

    default:
      showError(`Microphone error: ${error.message}`);
  }
}

// Monitor online/offline status
window.addEventListener('online', () => {
  showToast('Back online');
  talker.reconnect();
});

window.addEventListener('offline', () => {
  showToast('You are offline. PTT will resume when connected.');
});

// Check before important operations
async function performAction() {
  if (!navigator.onLine) {
    showError('No internet connection. Please check your network.');
    return;
  }

  // Proceed with action...
}

async function createChannel(name: string, participants: string[]) {
  try {
    const channel = await talker.createChannel({
      name,
      participants,
      workspaceId: 'workspace-id',
    });
    return channel;
  } catch (error) {
    if (error.response) {
      // Server responded with error
      switch (error.response.status) {
        case 400:
          showError('Invalid channel configuration');
          break;
        case 401:
          showError('Session expired. Please log in again.');
          handleLogout();
          break;
        case 403:
          showError('You do not have permission to create channels');
          break;
        case 429:
          showError('Too many requests. Please wait and try again.');
          break;
        default:
          showError('Server error. Please try again later.');
      }
    } else if (error.request) {
      // Network error
      showError('Network error. Please check your connection.');
    } else {
      // Other error
      showError('An error occurred: ' + error.message);
    }
    throw error;
  }
}

class TalkerErrorHandler {
  private errorCallbacks: ((error: Error) => void)[] = [];

  onError(callback: (error: Error) => void) {
    this.errorCallbacks.push(callback);
    return () => {
      this.errorCallbacks = this.errorCallbacks.filter(cb => cb !== callback);
    };
  }

  handleError(error: Error, context?: string) {
    console.error(`[Talker Error${context ? ` - ${context}` : ''}]:`, error);

    // Log to error tracking service
    this.logToService(error, context);

    // Notify all listeners
    this.errorCallbacks.forEach(cb => cb(error));
  }

  private logToService(error: Error, context?: string) {
    // Send to Sentry, LogRocket, etc.
    if (typeof Sentry !== 'undefined') {
      Sentry.captureException(error, {
        extra: { context },
      });
    }
  }
}

// Usage
const errorHandler = new TalkerErrorHandler();

errorHandler.onError((error) => {
  showToast(`Error: ${error.message}`, 'error');
});

const ERROR_MESSAGES: Record = {
  // Connection errors
  'not_connected': 'Connecting to server. Please wait...',
  'connection_timeout': 'Connection timed out. Retrying...',
  'connection_failed': 'Could not connect to server. Please check your internet.',

  // PTT errors
  'no_user_id': 'User not authenticated. Please refresh the page.',
  'already_talking': 'Already in a call.',
  'channel_busy': 'Channel is busy. Someone else is talking.',
  'microphone_denied': 'Microphone access denied. Please enable in settings.',

  // General errors
  'network_error': 'Network error. Please check your connection.',
  'server_error': 'Server error. Please try again later.',
  'unknown_error': 'Something went wrong. Please try again.',
};

function getErrorMessage(code: string, fallback?: string): string {
  return ERROR_MESSAGES[code] || fallback || ERROR_MESSAGES['unknown_error'];
}

// Usage
const result = await talker.startTalking(channelId);
if (!result.success) {
  showToast(getErrorMessage(result.code, result.message));
}

interface ErrorBannerProps {
  error: string | null;
  onRetry?: () => void;
  onDismiss?: () => void;
}

function ErrorBanner({ error, onRetry, onDismiss }: ErrorBannerProps) {
  if (!error) return null;

  return (
    <div className="error-banner">
      <span className="error-icon">⚠️</span>
      <span className="error-message">{error}</span>
      <div className="error-actions">
        {onRetry && (
          <button onClick={onRetry}>Retry</button>
        )}
        {onDismiss && (
          <button onClick={onDismiss}>Dismiss</button>
        )}
      </div>
    </div>
  );
}