1 files changed, 140 insertions, 113 deletions

diff --git a/assets/root/sw.js.bvr b/assets/root/sw.js.bvr
index a44a6fc..45ac9dd 100644
--- a/assets/root/sw.js.bvr
+++ b/assets/root/sw.js.bvr
@@ -6,79 +6,79 @@ const static_cache_name = "site-static-<@?g app_version@>-<@?u 0 7 ?g latest_com
 // sw.js NE SME BITI CACHAN, ker vsebuje verzijo!
 
 const assets = [
-    "/css/materialize.min.css",
-    "/css/fontawesome.min.css",
-    "/css/materialicons.css",
-    "/css/styles.css",
-    "/css/fullcalendar/custom.css",
-    "/css/fullcalendar/daygrid/main.min.css",
-    "/css/fullcalendar/core/main.min.css",
-    "/css/fullcalendar/timegrid/main.min.css",
-
-    "/fonts/fa-solid-900.eot",
-    "/fonts/fa-solid-900.woff2",
-    "/fonts/fa-brands-400.woff2",
-    "/fonts/fa-regular-400.eot",
-    "/fonts/fa-regular-400.woff2",
-    "/fonts/fa-brands-400.eot",
-    "/fonts/materialicons.woff2",
-
-    "/img/avatars/asijanec.png",
-    "/img/avatars/rstular.png",
-    "/img/icons/icon_384.png",
-    "/img/icons/icon_192.png",
-    "/img/icons/icon_72.png",
-    "/img/icons/icon_144.png",
-    "/img/icons/icon_512.png",
-    "/img/icons/icon_96.png",
-    "/img/icons/icon_48.png",
-
-    "/js/timetable.js",
-    "/js/gradings.js",
-    "/js/messaging.js",
-    "/js/privacypolicy.js",
-    "/js/teachers.js",
-    "/js/tos.js",
-    "/js/login.js",
-    "/js/app.js",
-    "/js/meals.js",
-    "/js/settings.js",
+	"/css/materialize.min.css",
+	"/css/fontawesome.min.css",
+	"/css/materialicons.css",
+	"/css/styles.css",
+	"/css/fullcalendar/custom.css",
+	"/css/fullcalendar/daygrid/main.min.css",
+	"/css/fullcalendar/core/main.min.css",
+	"/css/fullcalendar/timegrid/main.min.css",
+
+	"/fonts/fa-solid-900.eot",
+	"/fonts/fa-solid-900.woff2",
+	"/fonts/fa-brands-400.woff2",
+	"/fonts/fa-regular-400.eot",
+	"/fonts/fa-regular-400.woff2",
+	"/fonts/fa-brands-400.eot",
+	"/fonts/materialicons.woff2",
+
+	"/img/avatars/asijanec.png",
+	"/img/avatars/rstular.png",
+	"/img/icons/icon_384.png",
+	"/img/icons/icon_192.png",
+	"/img/icons/icon_72.png",
+	"/img/icons/icon_144.png",
+	"/img/icons/icon_512.png",
+	"/img/icons/icon_96.png",
+	"/img/icons/icon_48.png",
+
+	"/js/timetable.js",
+	"/js/gradings.js",
+	"/js/messaging.js",
+	"/js/privacypolicy.js",
+	"/js/teachers.js",
+	"/js/tos.js",
+	"/js/login.js",
+	"/js/app.js",
+	"/js/meals.js",
+	"/js/settings.js",
 	"/js/lang/bundle.js",
 	"/js/setup-storage.js",
 
-    "/js/lib/materialize.min.js",
-    "/js/lib/jquery.min.js",
-    "/js/lib/localforage.min.js",
-    "/js/lib/xss.js",
-    "/js/lib/mergedeep.js",
-
-    "/js/lib/fullcalendar/daygrid/main.min.js",
-    "/js/lib/fullcalendar/core/main.min.js",
-    "/js/lib/fullcalendar/timegrid/main.min.js",
-    "/js/grades.js",
-    "/js/about.js",
-    "/js/logout.js",
-    "/js/initialize.js",
-    "/js/absences.js",
-    "/js/changelog.js",
-
-    "/pages/timetable.html",
-    "/pages/teachers.html",
-    "/pages/absences.html",
-    "/pages/about.html",
-    "/pages/changelog.html",
-    "/pages/messaging.html",
-    "/pages/gradings.html",
-    "/pages/grades.html",
-    "/pages/privacypolicy.html",
-    "/pages/tos.html",
-    "/pages/meals.html",
-    "/pages/settings.html",
-
-    "/manifest.json",
-    "/index.html",
-    "/login.html",
-    "/logout.html",
+	"/js/lib/materialize.min.js",
+	"/js/lib/jquery.min.js",
+	"/js/lib/localforage.min.js",
+	"/js/lib/xss.js",
+	"/js/lib/mergedeep.js",
+
+	"/js/lib/fullcalendar/daygrid/main.min.js",
+	"/js/lib/fullcalendar/core/main.min.js",
+	"/js/lib/fullcalendar/timegrid/main.min.js",
+	"/js/grades.js",
+	"/js/about.js",
+	"/js/logout.js",
+	"/js/initialize.js",
+	"/js/absences.js",
+	"/js/changelog.js",
+
+	"/pages/timetable.html",
+	"/pages/teachers.html",
+	"/pages/absences.html",
+	"/pages/about.html",
+	"/pages/changelog.html",
+	"/pages/messaging.html",
+	"/pages/gradings.html",
+	"/pages/grades.html",
+	"/pages/privacypolicy.html",
+	"/pages/tos.html",
+	"/pages/meals.html",
+	"/pages/settings.html",
+
+	"/manifest.json",
+	"/index.html",
+	"/login.html",
+	"/logout.html",
 	"/favicon.png",
 	"/pages/jitsi.html",
 	"/js/jitsi.js",
@@ -93,58 +93,85 @@ const assets = [
 importScripts("/js/lib/localforage.min.js");
 importScripts("/js/setup-storage.js");
 self.addEventListener("install", (evt) => {
-    // Add localforage.clear() if storage purge is required
-    evt.waitUntil(
-        // localforage.clear()
-				setupStorage()
-    );
-
-    evt.waitUntil(
-        caches.open(static_cache_name).then((cache) => {
-            cache.addAll(assets);
-        })
-    );
+	// Add localforage.clear() if storage purge is required
+	evt.waitUntil(
+		// localforage.clear()
+		setupStorage()
+	);
+
+	evt.waitUntil(
+		caches.open(static_cache_name).then((cache) => {
+			cache.addAll(assets);
+		})
+	);
 });
 
 // Delete old caches
 self.addEventListener("activate", evt => {
-    evt.waitUntil(
-        caches.keys().then((keys) => {
-            return Promise.all(keys
-                .filter(key => key !== static_cache_name)
-                .map(key => caches.delete(key))
-            );
-        })
-    );
+	evt.waitUntil(
+		caches.keys().then((keys) => {
+			return Promise.all(keys
+				.filter(key => key !== static_cache_name)
+				.map(key => caches.delete(key))
+			);
+		})
+	);
 });
 
+async function sw_asynclycheckversion (data) {
+	try {
+		var names = await caches.keys();
+		console.log("[sw.js] checkversion: ***** checkversion v0 for BežiApp ***** hello, world!");
+		if(!(data.valid_cache_name == undefined || data.valid_cache_name == null || data.valid_cache_name == "")) {
+			var valid_cache_name = data.valid_cache_name;
+			console.log("[sw.js] checkversion: requested version (cachename) " + valid_cache_name);
+		} else {
+			var valid_cache_name = static_cache_name;
+			console.log("[sw.js] checkversion: no version to keep specified, using current "+valid_cache_name+", but that makes no sense to me.");
+		}
+		console.log("[sw.js] checkversion: deleting caches that don't match that cache name ...");
+		for (let name of names) {
+			if(valid_cache_name != name) {
+				caches.delete(name);
+				console.log("[sw.js] checkversion: done requesting delete of cache " + name);
+			}
+		}
+		console.log("[sw.js] checkversion: done, exiting!");
+	} catch (e) {
+		console.log("[sw.js] checkversion: !!! ERRORS! (caught)");
+	}
+}
+
 self.addEventListener("message", event => {
 
-    if (event.data) {
-        let data = JSON.parse(event.data); // parse the message back to JSON
-        if (data.action == "addtocache") { // check the action
-            event.waitUntil(
-                caches.open(static_cache_name).then(function (cache) {
-                    try {
-                        return cache.add([data.url]);
-                    }
-                    catch (error) {
-                        console.error("[sw.js] error: " + error);
-                    }
-                })
-            );
-        } else if (data.action == "deletecaches") {
-            caches.keys().then(function (names) {
-                for (let name of names)
-                    console.log("[sw.js] deleting cache named " + name);
-                caches.delete(name);
-            });
-        }
-    }
+	if (event.data) {
+		let data = JSON.parse(event.data); // parse the message back to JSON
+		if (data.action == "addtocache") { // check the action
+			event.waitUntil(
+				caches.open(static_cache_name).then(function (cache) {
+					try {
+						return cache.add([data.url]);
+					}
+					catch (error) {
+						console.error("[sw.js] error: " + error);
+					}
+				})
+			);
+		} else if (data.action == "deletecaches") {
+			caches.keys().then(function (names) {
+				for (let name of names) {
+					console.log("[sw.js] deleting cache named " + name);
+					caches.delete(name);
+				}
+			});
+		} else if (data.action.startsWith("checkversion")) {
+			sw_asynclycheckversion(data);
+		}
+	}
 });
 
 self.addEventListener("fetch", (evt) => {
-    evt.respondWith(caches.match(evt.request).then((cache_res) => {
-        return cache_res || fetch(evt.request);
-    }))
+	evt.respondWith(caches.match(evt.request).then((cache_res) => {
+		return cache_res || fetch(evt.request);
+	}))
 });