advanced settings

var gulp = require('gulp');
var minifycss = require('gulp-minify-css');
var htmlmin = require('gulp-html-minifier-terser');
var htmlclean = require('gulp-htmlclean');
var terser = require('gulp-terser');

// Compress the css file
const minify_css = () => (
    gulp.src(['./public/**/*.css'])
        .pipe(minifycss())
        .pipe(gulp.dest('./public'))
);

// Compress html file
const minify_html = () => (
    gulp.src(['./public/**/*.html','!./public/{lib,lib/**}'])
        .pipe(htmlclean())
        .pipe(htmlmin({
            removeComments: true,
            minifyJS: true,
            minifyCSS: true,
            minifyURLs: true,
        }))
        .pipe(gulp.dest('./public'))
)

// Compress the js file
const minify_js = () => (
    gulp.src(['./public/**/*.js','!./public/**/*.min.js','!./public/{lib,lib/**}'] )
        .pipe(terser())
        .pipe(gulp.dest('./public'))
)

module.exports = {
    minify_html: minify_html,
    minify_css: minify_css,
    minify_js: minify_js
};
gulp.task('one', gulp.parallel(
    minify_html,
    minify_css,
    minify_js
))

gulp.task('default', gulp.series('one'));

importScripts('https://unpkg.com/workbox-cdn@5.1.3/workbox/workbox-sw.js');

workbox.setConfig({
    modulePathPrefix:'https://unpkg.com/workbox-cdn@5.1.3/workbox/'
});

const {core, precaching, routing, strategies, expiration, cacheableResponse, backgroundSync} = workbox;
const {CacheFirst, NetworkFirst, NetworkOnly, StaleWhileRevalidate} = strategies;
const {ExpirationPlugin} = expiration;
const {CacheableResponsePlugin} = cacheableResponse;

const cacheSuffixVersion ='-000010', // The cache version number is extremely important. You must modify the cache version number when publishing web pages after modifying static files
    maxEntries = 100;

self.addEventListener('activate', (event) => {
    event.waitUntil(
        caches.keys().then((keys) => {
            return Promise.all(keys.map((key) => {
                if (!key.includes(cacheSuffixVersion)) return caches.delete(key);
            }));
        })
    );
});


core.setCacheNameDetails({
    prefix:'volantis', // extremely important, draw up a name by yourself
    suffix: cacheSuffixVersion
});

core.skipWaiting();
core.clientsClaim();
precaching.cleanupOutdatedCaches();

/*
 * Precache
 *-Static Assets
 */
precaching.precacheAndRoute( // Extremely important defines the static file to be cached for the first time
    [
        {url:'/css/first.css', revision: null },
        {url:'/css/style.css', revision: null },
        {url:'/js/app.js', revision: null },
    ],
);

/*
 * Cache File From CDN
 *
 * Method: CacheFirst
 * cacheName: static-immutable
 * cacheTime: 30d
 */

// cdn.jsdelivr.net-cors enabled
routing.registerRoute(
    /.*cdn\.jsdelivr\.net/,
    new CacheFirst({
        cacheName:'static-immutable' + cacheSuffixVersion,
        fetchOptions: {
            mode:'cors',
            credentials:'omit'
        },
        plugins: [
            new ExpirationPlugin({
                maxAgeSeconds: 30 * 24 * 60 * 60,
                purgeOnQuotaError: true
            })
        ]
    })
);

// m7.music.126.net-cors enabled
routing.registerRoute(
    /.*m7\.music\.126\.net/,
    new CacheFirst({
        cacheName:'static-immutable' + cacheSuffixVersion,
        fetchOptions: {
            mode:'cors',
            credentials:'omit'
        },
        plugins: [
            new ExpirationPlugin({
                maxAgeSeconds: 30 * 24 * 60 * 60,
                purgeOnQuotaError: true
            })
        ]
    })
);

/*
 * No Cache
 *
 * Method: networkOnly
 */
routing.registerRoute(
    /.*baidu\.com.*/,
    new NetworkOnly()
);
/*
 * Others img fonts
 * Method: staleWhileRevalidate
 */
routing.registerRoute(
    // Cache image fonts files
    /.*\.(?:png|jpg|jpeg|svg|gif|webp|ico|eot|ttf|woff|woff2|mp3)/,
    new StaleWhileRevalidate()
);

/*
 * Static Assets
 * Method: staleWhileRevalidate
 */
routing.registerRoute(
    // Cache CSS files
    /.*\.(css|js)/,
    // Use cache but update in the background ASAP
    new StaleWhileRevalidate()
);

/*
 * sw.js-Revalidate every time
 * staleWhileRevalidate
 */
routing.registerRoute(
    '/sw.js', // this file name
    new StaleWhileRevalidate()
);

/*
 * Default-Serve as it is
 * networkFirst
 */
routing.setDefaultHandler(
    new NetworkFirst({
        networkTimeoutSeconds: 3
    })
);