build: switch from yarn to npm to manage js dependencies and move js contents to root

yarn v1 is being deprecated and starts to have some issues

Signed-off-by: Thomas Citharel <tcit@tcit.fr>

src/services/push-subscription.ts

@@ -0,0 +1,60 @@
+import { apolloClient } from "@/vue-apollo";
+import { provideApolloClient, useQuery } from "@vue/apollo-composable";
+import { WEB_PUSH } from "../graphql/config";
+import { IConfig } from "../types/config.model";
+
+function urlBase64ToUint8Array(base64String: string): Uint8Array {
+  const padding = "=".repeat((4 - (base64String.length % 4)) % 4);
+  const base64 = (base64String + padding).replace(/-/g, "+").replace(/_/g, "/");
+
+  const rawData = window.atob(base64);
+  const outputArray = new Uint8Array(rawData.length);
+
+  for (let i = 0; i < rawData.length; ++i) {
+    outputArray[i] = rawData.charCodeAt(i);
+  }
+  return outputArray;
+}
+
+export async function subscribeUserToPush(): Promise<PushSubscription | null> {
+  const { onResult } = provideApolloClient(apolloClient)(() =>
+    useQuery<{ config: IConfig }>(WEB_PUSH)
+  );
+
+  return new Promise((resolve, reject) => {
+    onResult(async ({ data }) => {
+      if (data?.config?.webPush?.enabled && data?.config?.webPush?.publicKey) {
+        const subscribeOptions = {
+          userVisibleOnly: true,
+          applicationServerKey: urlBase64ToUint8Array(
+            data?.config?.webPush?.publicKey
+          ),
+        };
+        const registration = await navigator.serviceWorker.ready;
+        try {
+          const pushSubscription =
+            await registration.pushManager.subscribe(subscribeOptions);
+          console.debug("Received PushSubscription: ", pushSubscription);
+          resolve(pushSubscription);
+        } catch (e) {
+          console.error("Error while subscribing to push notifications", e);
+        }
+      }
+      reject(null);
+    });
+  });
+}
+
+export async function unsubscribeUserToPush(): Promise<string | undefined> {
+  console.debug("performing unsubscribeUserToPush");
+  const registration = await navigator.serviceWorker.ready;
+  console.debug("found registration", registration);
+  const subscription = await registration.pushManager?.getSubscription();
+  console.debug("found subscription", subscription);
+  if (subscription && (await subscription?.unsubscribe()) === true) {
+    console.debug("done unsubscription");
+    return subscription?.endpoint;
+  }
+  console.debug("went wrong");
+  return undefined;
+}