shellphone.app/app/phone-calls/hooks/use-make-call.ts

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import { useEffect, useState } from "react";
import { useMutation } from "blitz";
import { Call, Device, TwilioError } from "@twilio/voice-sdk";
import getToken from "../mutations/get-token";
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type Params = {
recipient: string;
onHangUp?: () => void;
};
export default function useMakeCall({ recipient, onHangUp }: Params) {
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const [outgoingConnection, setOutgoingConnection] = useState<Call | null>(null);
const [device, setDevice] = useState<Device | null>(null);
const [getTokenMutation] = useMutation(getToken);
const [state, setState] = useState<State>("initial");
useEffect(() => {
(async () => {
const token = await getTokenMutation();
const device = new Device(token, {
codecPreferences: [Call.Codec.Opus, Call.Codec.PCMU],
sounds: {
[Device.SoundName.Disconnect]: undefined, // TODO
},
});
device.register();
setDevice(device);
})();
}, [getTokenMutation]);
useEffect(() => {
if (!device) {
return;
}
device.on("error", onDeviceError);
device.on("registered", onDeviceRegistered);
device.on("incoming", onDeviceIncoming);
return () => {
device.off("error", onDeviceError);
device.off("registered", onDeviceRegistered);
device.off("incoming", onDeviceIncoming);
};
}, [device]);
return {
makeCall,
sendDigits,
hangUp,
state,
};
async function makeCall() {
if (!device) {
console.error("no device initialized, can't make the call");
return;
}
if (state !== "ready") {
console.error("not a good time", state);
return;
}
setState("calling");
const params = { To: recipient };
const outgoingConnection = await device.connect({ params });
setOutgoingConnection(outgoingConnection);
// @ts-ignore
window.ddd = outgoingConnection;
// TODO: setState("call_in_progress");
// TODO: remove event listeners
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outgoingConnection.on("cancel", () => setState("call_ended"));
outgoingConnection.on("disconnect", () => setState("call_ending"));
outgoingConnection.on("error", (error) => {
console.error("call error", error);
alert(error);
});
}
function sendDigits(digits: string) {
return outgoingConnection?.sendDigits(digits);
}
function hangUp() {
setState("call_ending");
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outgoingConnection?.reject();
device?.disconnectAll();
device?.destroy();
onHangUp?.();
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}
function onDeviceError(error: TwilioError.TwilioError, call?: Call) {
console.error("device error", error);
alert(error);
}
function onDeviceRegistered() {
setState("ready");
}
function onDeviceIncoming(call: Call) {
// TODO
console.log("call", call);
console.log("Incoming connection from " + call.parameters.From);
let archEnemyPhoneNumber = "+12093373517";
if (call.parameters.From === archEnemyPhoneNumber) {
call.reject();
console.log("It's your nemesis. Rejected call.");
} else {
// accept the incoming connection and start two-way audio
call.accept();
}
}
}
type State = "initial" | "ready" | "calling" | "call_in_progress" | "call_ending" | "call_ended";