improve web push notifications

src/lib/push_notifications_plugin.js

@@ -0,0 +1,22 @@
+export default (store) => {
+  store.subscribe((mutation, state) => {
+    const vapidPublicKey = state.instance.vapidPublicKey
+    const webPushNotification = state.config.webPushNotifications
+    const permission = state.interface.notificationPermission === 'granted'
+    const user = state.users.currentUser
+
+    const isUserMutation = mutation.type === 'setCurrentUser'
+    const isVapidMutation = mutation.type === 'setInstanceOption' && mutation.payload.name === 'vapidPublicKey'
+    const isPermMutation = mutation.type === 'setNotificationPermission' && mutation.payload === 'granted'
+    const isUserConfigMutation = mutation.type === 'setOption' && mutation.payload.name === 'webPushNotifications'
+    const isVisibilityMutation = mutation.type === 'setOption' && mutation.payload.name === 'notificationVisibility'
+
+    if (isUserMutation || isVapidMutation || isPermMutation || isUserConfigMutation || isVisibilityMutation) {
+      if (user && vapidPublicKey && permission && webPushNotification) {
+        return store.dispatch('registerPushNotifications')
+      } else if (isUserConfigMutation && !webPushNotification) {
+        return store.dispatch('unregisterPushNotifications')
+      }
+    }
+  })
+}