chore: add stricter typescript and fix type errors

Author: skyllo

src/peer.ts

@@ -266,7 +266,10 @@ export default class Peer {
   private addDataChannel(channel: RTCDataChannel) {
     // setup data channel events
     channel.onopen = () => this.emit('channelOpen', { channel });
-    channel.onerror = (error: RTCErrorEvent) => this.emit('channelError', { channel, error });
+    channel.onerror = (ev: Event) => {
+      const event = ev as RTCErrorEvent;
+      this.emit('channelError', { channel, event });
+    };
     channel.onclose = () => {
       this.channels.delete(channel.label);
       this.emit('channelClosed', { channel });

src/types.ts

@@ -27,7 +27,7 @@ export interface PeerEvents {
   // RTCDataChannel
   channelOpen: (data: { channel: RTCDataChannel }) => void;
   channelClosed: (data: { channel: RTCDataChannel }) => void;
-  channelError: (data: { channel: RTCDataChannel; error: RTCErrorEvent }) => void;
+  channelError: (data: { channel: RTCDataChannel; event: RTCErrorEvent }) => void;
   channelData: (data: {
     channel: RTCDataChannel;
     source: 'incoming' | 'outgoing';

src/utils.ts

@@ -20,7 +20,7 @@ export function randomHex(n: number) {
 
 export const filterTracksAV =
   (video: boolean, audio: boolean): FilterTracksFunc =>
-  (track: MediaStreamTrack) => {
+  (track) => {
     const isVideo = video && track?.kind === 'video';
     const isAudio = audio && track?.kind === 'audio';
     return isVideo || isAudio;

tsconfig.json

@@ -7,6 +7,8 @@
     "skipLibCheck": true,
     "sourceMap": true,
     "stripInternal": true,
+    "strictBindCallApply": true,
+    "strictFunctionTypes": true,
     "strictNullChecks": true,
     "esModuleInterop": true,
     "outDir": "dist",