minor tweaks

calling.js

@@ -0,0 +1,64 @@
+import { CallClient } from "@azure/communication-calling";
+import { AzureCommunicationTokenCredential } from '@azure/communication-common';
+
+const userToken = document.getElementById("token-input"); 
+const submitToken = document.getElementById("token-submit");
+
+const calleeInput = document.getElementById("callee-id-input");
+
+const callButton = document.getElementById("call-button");
+const hangUpButton = document.getElementById("hang-up-button");
+
+let call;
+let callAgent;
+let tokenCredential;
+
+
+submitToken.addEventListener("click", async () => {
+    const callClient = new CallClient();
+    const userTokenCredential = userToken.value;
+        try {
+            tokenCredential = new AzureCommunicationTokenCredential(userTokenCredential);
+            callAgent = await callClient.createCallAgent(tokenCredential);
+            callAgent.on('incomingCall', incomingCallHandler);
+
+            callButton.disabled = false;
+            submitToken.disabled = true;
+        } catch(error) {
+            window.alert("Please submit a valid token!");
+        }
+})
+
+callButton.addEventListener("click", () => {
+    // start a call
+    const userToCall = calleeInput.value;
+    call = callAgent.startCall(
+        [{ id: userToCall }],
+        {}
+    );
+
+    // toggle button states
+    hangUpButton.disabled = false;
+    callButton.disabled = true;
+});
+
+hangUpButton.addEventListener("click", () => {
+    // end the current call
+    call.hangUp({ forEveryone: true });
+
+    // toggle button states
+    hangUpButton.disabled = true;
+    callButton.disabled = false;
+});
+
+const incomingCallHandler = async (args) => {
+    const incomingCall = args.incomingCall;
+    console.log("CALL ACCEPTED")
+    // Accept the call
+    await incomingCall.accept();
+
+    // Subscribe to callEnded event and get the call end reason
+    incomingCall.on('callEnded', args => {
+        console.log(args.callEndReason);
+    });
+};