Dan Cojocaru
0827a1ec31
When a train has a 2 minute delay, currently the scheduled time is displayed with strikethrough and the actual time is displayed below. This change adds a +2 after the original time to also have the relative delay, not just the absolute one.
129 lines
3.3 KiB
JavaScript
Executable file
129 lines
3.3 KiB
JavaScript
Executable file
const VERSION = 'v14'
|
|
const API_ORIGIN = 'https://scraper.infotren.dcdev.ro/'
|
|
const API_TRAINS = `${API_ORIGIN}v3/trains`
|
|
const API_STATIONS = `${API_ORIGIN}v3/stations`
|
|
|
|
self.addEventListener('install', (event) => {
|
|
event.waitUntil(
|
|
caches
|
|
.open(VERSION)
|
|
.then((cache) =>
|
|
cache.addAll([
|
|
// Root
|
|
'/',
|
|
|
|
// Utility JS
|
|
'/common/worker.js',
|
|
'/common/items.js',
|
|
'/common/back.js',
|
|
'/common/tabs.js',
|
|
|
|
// Base
|
|
'/base.css',
|
|
|
|
// Pages
|
|
'/index.html',
|
|
|
|
'/about.html',
|
|
|
|
'/train.html',
|
|
'/train.js',
|
|
|
|
'/view-train.html',
|
|
'/view-train.js',
|
|
'/view-train.css',
|
|
|
|
'/station.html',
|
|
'/station.js',
|
|
|
|
'/view-station.html',
|
|
'/view-station.js',
|
|
'/view-station.css',
|
|
|
|
// API
|
|
API_TRAINS,
|
|
API_STATIONS,
|
|
|
|
])
|
|
)
|
|
)
|
|
})
|
|
|
|
const deleteCache = (/** @type {string} */ key) => caches.delete(key)
|
|
|
|
const deleteOldCaches = async () => {
|
|
const cacheKeepList = [VERSION]
|
|
const keyList = await caches.keys()
|
|
const cachesToDelete = keyList.filter((key) => !cacheKeepList.includes(key))
|
|
await Promise.all(cachesToDelete.map(deleteCache))
|
|
}
|
|
|
|
// Enable navigation preload
|
|
const enableNavigationPreload = async () => {
|
|
if (self.registration.navigationPreload) {
|
|
// Enable navigation preloads!
|
|
await self.registration.navigationPreload.enable()
|
|
}
|
|
}
|
|
|
|
self.addEventListener('activate', (event) => {
|
|
event.waitUntil(Promise.all([deleteOldCaches(), enableNavigationPreload()]))
|
|
})
|
|
|
|
const putInCache = async (request, response) => {
|
|
const cache = await caches.open(VERSION)
|
|
await cache.put(request, response)
|
|
}
|
|
|
|
const cacheFirst = async ({ request, preloadResponsePromise, refreshAnyway }) => {
|
|
// First try to get the resource from the cache
|
|
const responseFromCache = await caches.match(request)
|
|
if (responseFromCache) {
|
|
if (refreshAnyway) {
|
|
console.log('request in cache, refreshing anyway but returning cache', request);
|
|
((async () => {
|
|
try {
|
|
const response = await fetch(request)
|
|
if (response.ok) {
|
|
putInCache(request, response)
|
|
}
|
|
}
|
|
catch {}
|
|
})())
|
|
}
|
|
return responseFromCache
|
|
}
|
|
|
|
// Next try to use (and cache) the preloaded response, if it's there
|
|
if (preloadResponsePromise) {
|
|
const preloadResponse = await preloadResponsePromise
|
|
if (preloadResponse && preloadResponse.ok) {
|
|
console.info('using preload response', preloadResponse)
|
|
putInCache(request, preloadResponse.clone())
|
|
return preloadResponse
|
|
}
|
|
else {
|
|
console.log('got not ok preloadResponse, ignoring', preloadResponse)
|
|
}
|
|
}
|
|
|
|
// Next try to get the resource from the network
|
|
const responseFromNetwork = await fetch(request)
|
|
// response may be used only once
|
|
// we need to save clone to put one copy in cache
|
|
// and serve second one
|
|
if (responseFromNetwork.ok) {
|
|
putInCache(request, responseFromNetwork.clone())
|
|
}
|
|
return responseFromNetwork;
|
|
}
|
|
|
|
self.addEventListener('fetch', (event) => {
|
|
event.respondWith(
|
|
cacheFirst({
|
|
request: event.request,
|
|
preloadResponsePromise: event.preloadResponse,
|
|
refreshAnyway: [API_STATIONS, API_TRAINS].includes(event.request.url.split('?')[0]),
|
|
})
|
|
)
|
|
})
|