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import { writable } from 'svelte/store';
import { PUBLIC_WSS_URL } from '$env/static/public';
export const isStreaming = writable(false);
export const isLCMRunning = writable(false);
export enum LCMLiveStatus {
INIT = "init",
CONNECTED = "connected",
DISCONNECTED = "disconnected",
}
interface lcmLive {
streamId: string | null;
status: LCMLiveStatus
}
const initialState: lcmLive = {
streamId: null,
status: LCMLiveStatus.INIT
};
export const lcmLiveState = writable(initialState);
let websocket: WebSocket | null = null;
export const lcmLiveActions = {
async start() {
return new Promise((resolve, reject) => {
try {
const websocketURL = PUBLIC_WSS_URL ? PUBLIC_WSS_URL : `${window.location.protocol === "https:" ? "wss" : "ws"
}:${window.location.host}/ws`;
websocket = new WebSocket(websocketURL);
websocket.onopen = () => {
console.log("Connected to websocket");
};
websocket.onclose = () => {
lcmLiveState.update((state) => ({
...state,
status: LCMLiveStatus.DISCONNECTED
}));
console.log("Disconnected from websocket");
isLCMRunning.set(false);
};
websocket.onerror = (err) => {
console.error(err);
};
websocket.onmessage = (event) => {
const data = JSON.parse(event.data);
console.log("WS: ", data);
switch (data.status) {
case "success":
break;
case "start":
const streamId = data.userId;
lcmLiveState.update((state) => ({
...state,
status: LCMLiveStatus.CONNECTED,
streamId: streamId,
}));
isLCMRunning.set(true);
resolve(streamId);
break;
case "timeout":
console.log("timeout");
isLCMRunning.set(false);
lcmLiveState.update((state) => ({
...state,
status: LCMLiveStatus.DISCONNECTED,
streamId: null,
}));
reject("timeout");
case "error":
console.log(data.message);
isLCMRunning.set(false);
lcmLiveState.update((state) => ({
...state,
status: LCMLiveStatus.DISCONNECTED,
streamId: null,
}));
reject(data.message);
}
};
} catch (err) {
console.error(err);
isLCMRunning.set(false);
lcmLiveState.update((state) => ({
...state,
status: LCMLiveStatus.DISCONNECTED,
streamId: null,
}));
reject(err);
}
});
},
send(data: Blob | { [key: string]: any }) {
if (websocket && websocket.readyState === WebSocket.OPEN) {
if (data instanceof Blob) {
websocket.send(data);
} else {
websocket.send(JSON.stringify(data));
}
} else {
console.log("WebSocket not connected");
}
},
async stop() {
if (websocket) {
websocket.close();
}
websocket = null;
lcmLiveState.set({ status: LCMLiveStatus.DISCONNECTED, streamId: null });
isLCMRunning.set(false)
},
}; |