Safari Shims

/**
 * Shims local streams API for Safari browsers
 * Ensures proper local stream handling and events
 * @param window - Browser window object
 */
function shimLocalStreamsAPI(window: Window): void;

/**
 * Shims remote streams API for Safari browsers
 * Ensures proper remote stream handling and events
 * @param window - Browser window object
 */
function shimRemoteStreamsAPI(window: Window): void;

import adapter from 'webrtc-adapter';

const pc = new RTCPeerConnection();

// Remote stream handling (automatically shimmed)
pc.ontrack = (event) => {
  console.log('Received remote track:', event.track.kind);
  
  // Streams array is properly populated in Safari
  if (event.streams && event.streams.length > 0) {
    const remoteStream = event.streams[0];
    videoElement.srcObject = remoteStream;
  }
};

/**
 * Shims callbacks API for Safari browsers
 * Provides legacy callback compatibility for older Safari versions
 * @param window - Browser window object
 */
function shimCallbacksAPI(window: Window): void;

import adapter from 'webrtc-adapter';

const pc = new RTCPeerConnection();

// Legacy callback style (automatically shimmed to work in Safari)
pc.createOffer(
  (offer) => {
    console.log('Offer created successfully');
    pc.setLocalDescription(offer);
  },
  (error) => {
    console.error('Failed to create offer:', error);
  },
  { offerToReceiveAudio: true, offerToReceiveVideo: true }
);

/**
 * Shims getUserMedia for Safari browsers
 * Provides consistent media access API for Safari
 * @param window - Browser window object
 */
function shimGetUserMedia(window: Window): void;

import adapter from 'webrtc-adapter';

// getUserMedia works consistently in Safari (automatically shimmed)
navigator.mediaDevices.getUserMedia({
  video: { width: 640, height: 480 },
  audio: { echoCancellation: true }
})
.then((stream) => {
  console.log('Media access granted');
  localVideo.srcObject = stream;
})
.catch((error) => {
  console.error('Media access denied:', error);
});

/**
 * Normalizes media constraints for Safari requirements
 * Converts constraints to Safari-compatible format
 * @param constraints - MediaStreamConstraints to normalize
 */
function shimConstraints(constraints: MediaStreamConstraints): void;

/**
 * Shims RTCIceServer URLs for Safari browsers
 * Converts STUN/TURN URLs to Safari-compatible format
 * @param window - Browser window object
 */
function shimRTCIceServerUrls(window: Window): void;

import adapter from 'webrtc-adapter';

// ICE server configuration works in Safari (automatically shimmed)
const pc = new RTCPeerConnection({
  iceServers: [
    { urls: 'stun:stun.l.google.com:19302' },
    { 
      urls: ['turn:turn.example.com:3478'],
      username: 'user',
      credential: 'pass'
    }
  ]
});

/**
 * Shims track event transceiver information for Safari
 * Ensures proper transceiver data in ontrack events
 * @param window - Browser window object
 */
function shimTrackEventTransceiver(window: Window): void;

/**
 * Shims legacy createOffer behavior for Safari
 * Handles older Safari createOffer implementation differences
 * @param window - Browser window object
 */
function shimCreateOfferLegacy(window: Window): void;

/**
 * Shims AudioContext for Safari browsers
 * Ensures consistent audio processing capabilities
 * @param window - Browser window object
 */
function shimAudioContext(window: Window): void;

import adapter from 'webrtc-adapter';

// Audio context works consistently (automatically shimmed)
const audioContext = new (window.AudioContext || window.webkitAudioContext)();

// Process audio from WebRTC stream
function processAudio(stream) {
  const source = audioContext.createMediaStreamSource(stream);
  const analyser = audioContext.createAnalyser();
  source.connect(analyser);
  
  // Audio processing works consistently across browsers
}

interface ISafariShim {
  shimLocalStreamsAPI: (window: Window) => void;
  shimRemoteStreamsAPI: (window: Window) => void;
  shimCallbacksAPI: (window: Window) => void;
  shimGetUserMedia: (window: Window) => void;
  shimConstraints: (constraints: MediaStreamConstraints) => void;
  shimRTCIceServerUrls: (window: Window) => void;
  shimTrackEventTransceiver: (window: Window) => void;
  shimCreateOfferLegacy: (window: Window) => void;
  shimAudioContext: (window: Window) => void;
}

// Check Unified Plan support
if (adapter.browserDetails.supportsUnifiedPlan) {
  console.log('Safari supports Unified Plan');
  // Use modern transceiver-based API
} else {
  console.log('Safari uses Plan-B');
  // Use legacy stream-based API
}