fix notification store timers

packages/client/src/store/notification.js

@@ -1,42 +1,33 @@
-import { writable, derived } from "svelte/store"
-import { generate } from "shortid"
+import { writable } from "svelte/store"
 
 const NOTIFICATION_TIMEOUT = 3000
 
 const createNotificationStore = () => {
-  const _notifications = writable([])
-  let block = false
+	const timeoutIds = new Set();
+  const _notifications = writable([], () => {
+		return () => {
+			// clear all the timers
+			timeoutIds.forEach(timeoutId => {
+				clearTimeout(timeoutId);
+			});
+			_notifications.set([]);
+		}
+	});
 
   const send = (message, type = "default") => {
-    if (block) {
-      return
-    }
+		let _id = id();
     _notifications.update(state => {
-      return [...state, { id: generate(), type, message }]
-    })
+      return [...state, { id: _id, type, message }]
+    });
+		const timeoutId = setTimeout(() => {
+			_notifications.update(state => {
+				return state.filter(({ id }) => id !== _id);
+			});
+		}, NOTIFICATION_TIMEOUT);
+		timeoutIds.add(timeoutId);
 	}
 
-  const blockNotifications = (timeout = 1000) => {
-    block = true
-    setTimeout(() => (block = false), timeout)
-  }
-
-  const notifications = derived(_notifications, ($_notifications, set) => {
-    set($_notifications)
-    if ($_notifications.length > 0) {
-      const timeout = setTimeout(() => {
-        _notifications.update(state => {
-          state.shift()
-          return state
-        })
-        set($_notifications)
-      }, NOTIFICATION_TIMEOUT)
-      return () => {
-        clearTimeout(timeout)
-      }
-    }
-  })
-  const { subscribe } = notifications
+  const { subscribe } = _notifications
 
   return {
     subscribe,
@@ -45,8 +36,11 @@ const createNotificationStore = () => {
     warning: msg => send(msg, "warning"),
     info: msg => send(msg, "info"),
     success: msg => send(msg, "success"),
-    blockNotifications,
   }
 }
 
+function id() {
+  return '_' + Math.random().toString(36).substr(2, 9);
+};
+
 export const notificationStore = createNotificationStore()