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196 lines (132 loc) · 4.04 KB
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// client-side
// service worker/client communication channel
let workerChannel;
let workerInstallPromise;
let workerClientId;
// setup worker channel
async function setupWorkerChannel() {
// register service worker
workerInstallPromise = navigator.serviceWorker.register('/service-worker.js');
await workerInstallPromise;
let numOfRequests = 0;
async function pingWorkerForClientId() {
// get client ID from worker
let resp = await axios.get('/worker/getClientId', '', true);
try {
resp = JSON.parse(resp);
} catch(e) {
resp = '';
console.log('%c[Client] Pinged ServiceWorker for installation', 'color: #80868b');
}
if (numOfRequests < 100) {
if (!resp || !resp.clientId) {
numOfRequests++;
return await pingWorkerForClientId();
} else {
return resp.clientId;
}
} else {
return null;
}
}
// ping worker for client ID
workerInstallPromise = pingWorkerForClientId();
workerClientId = await workerInstallPromise;
workerInstallPromise = null;
// create worker channel
workerChannel = new BroadcastChannel('worker-channel');
// add worker channel listener
workerChannel.addEventListener('message', async (event) => {
// if message is for current client
if (event.data.toClient === workerClientId) {
// if recived request
if (event.data.type === 'request') {
// send request to /live-view/live-view.js
// for handling
const {fileContent, respStatus} =
await handleLiveViewRequest(event.data.url);
// send response back to worker
workerChannel.postMessage({
url: event.data.url,
resp: fileContent,
respStatus: (respStatus ?? 200),
fromClient: workerClientId,
type: 'response'
});
} else if (event.data.type === 'reload') { // if recived reload request
// reload page
window.location.reload();
} else if (event.data.type === 'message') { // if recived message
// log message
console.debug(event.data.message);
}
}
});
window.addEventListener('load', () => {
if (getStorage('workerDevLogs')) {
workerChannel.postMessage({
type: 'enableDevLogs'
});
}
if (window.location.hostname === 'dev.codeit.codes') {
workerChannel.postMessage({
type: 'updateWorker'
});
}
});
}
// enable service worker logs
function enableWorkerLogs() {
setStorage('workerDevLogs', 'true');
window.location.reload();
}
try {
axios = axios;
} catch(e) {
window.axios = null;
}
axios = {
'get': (url, token, noParse) => {
return new Promise((resolve, reject) => {
try {
var xmlhttp = new XMLHttpRequest();
xmlhttp.onreadystatechange = function () {
if (this.readyState == 4 && String(this.status).startsWith('2')) {
try {
if (!noParse) {
resolve(JSON.parse(this.responseText));
} else {
resolve(this.responseText);
}
} catch(e) {
resolve();
}
} else if (this.responseText) {
try {
if (!noParse) {
resolve(JSON.parse(this.responseText));
} else {
resolve(this.responseText);
}
} catch(e) {}
}
};
xmlhttp.onerror = function () {
if (this.responseText) {
try {
if (!noParse) {
resolve(JSON.parse(this.responseText));
} else {
resolve(this.responseText);
}
} catch(e) {}
}
};
xmlhttp.open('GET', url, true);
xmlhttp.send();
} catch(e) { reject(e) }
});
}
};
// setup worker channel
setupWorkerChannel();