1 files changed, 48 insertions, 0 deletions

diff --git a/fe/src/stores/auth.ts b/fe/src/stores/auth.ts
new file mode 100644
index 0000000..7e70cda
--- /dev/null
+++ b/fe/src/stores/auth.ts
@@ -0,0 +1,48 @@
+import type { Invalidator, Subscriber, Unsubscriber } from 'svelte/store';
+import { writable, derived } from 'svelte/store';
+
+type Nullable<T> = T | null;
+
+interface User {
+    uuid: string;
+    username: string;
+}
+
+interface TokenStore {
+    subscribe: (run: Subscriber<Nullable<string>>, invalidate: Invalidator<Nullable<string>>) => Unsubscriber,
+    authenticate: (newToken: string) => void,
+    unauthenticate: () => void
+}
+
+function createTokenStore(): TokenStore {
+    const storedToken = localStorage.getItem("token");
+    const { subscribe, set } = writable<string | null>(storedToken); 
+
+    function authenticate(newToken: string): void {
+        try {
+            localStorage.setItem("token", newToken);
+            set(newToken);
+        } catch (e) {
+            console.error('error', e);
+        }
+    }
+
+    function unauthenticate(): void {
+        localStorage.removeItem("token");
+        set(null);
+    }
+
+    return {
+        subscribe, 
+        authenticate,
+        unauthenticate
+    };
+}
+
+function onTokenChange ($token: Nullable<string>): boolean { 
+    return $token ? true : false;
+}
+
+export const token = createTokenStore();
+export const authenticated = derived(token, onTokenChange);
+export const user = writable<User | null>(null);