Added basic userstore

src/lib/UserStore.js

@@ -0,0 +1,61 @@
+import { writable } from 'svelte/store';
+import localForage from 'localforage';
+
+const userStore = () => {
+    const state = {
+        token: undefined,
+        username: undefined,
+        isLoggedIn: false,
+        refreshInterval: undefined
+    };
+
+    const { subscribe, set, update } = writable(state);
+
+    const methods = {
+        init() {
+            localForage.config({
+                name: 'linkylinky',
+                version: 1.0,
+                storeName: 'linkylinky_dashboard',
+                description: 'linkylinky Dashboard'
+            });
+        },
+        login(authresponse) {
+            update((state) => {
+                state.token = authresponse.token;
+                state.isLoggedIn = true;
+                //
+                localForage.setItem("userdata", state);
+                //
+                state.refreshInterval = setInterval(() => {
+                    //this.refreshAuth();
+                    // 2min
+                }, 2 * 60000);
+                //
+                return state;
+            });
+        },
+        logout() {
+            update((state) => {
+                state.isLoggedIn = false;
+                state.token = undefined;
+                //
+                clearInterval(state.refreshInterval);
+                state.refreshInterval = undefined;
+                localForage.clear();
+                //
+                return state;
+            });
+            location.replace("/");
+        }
+    };
+
+    return {
+        subscribe,
+        set,
+        update,
+        state,
+        ...methods
+    };
+};
+export default userStore();

src/routes/__layout.svelte

@@ -1,6 +1,15 @@
 <script>
 	import '../app.postcss';
 	import Sidebar from '$lib/Sidebar.svelte';
+	import UserStore from '$lib/UserStore';
+
+	$: isLoggedIn = false;
+
+	UserStore.init();
+	const unsubscribe = UserStore.subscribe((value) => {
+		isLoggedIn = value.isLoggedIn;
+	});
+	onDestroy(unsubscribe);
 </script>
 
 <div style="min-height: 640px;" class="bg-white dark:bg-gray-800">