ui: Redirect to main website if not connected

ui/src/lib/stores/usersession.ts

@@ -0,0 +1,16 @@
+import { writable, type Writable } from 'svelte/store';
+import type { User } from '$lib/model/user';
+
+export const userSession: Writable<null | User> = writable(null);
+
+export async function refreshUserSession() {
+    const res = await fetch('/api/auth', {headers: {'Accept': 'application/json'}})
+    if (res.status == 200) {
+        const user = new User(await res.json());
+        userSession.update(user);
+        return user
+    } else {
+        userSession.set(null);
+        throw new Error((await res.json()).errmsg);
+    }
+}

ui/src/routes/+layout.ts

@@ -1,5 +1,6 @@
 import type { Load } from '@sveltejs/kit';
 
+import { refreshUserSession } from '$lib/stores/usersession';
 import { config as tsConfig, locale, loadTranslations } from '$lib/translations';
 
 export const ssr = false;
@@ -9,5 +10,10 @@ export const load: Load = async({ url }) => {
 
     await loadTranslations(initLocale, url.pathname);
 
+    // Load user session if any
+    try {
+        await refreshUserSession();
+    } catch {}
+
     return {};
 }

ui/src/routes/+page.svelte

@@ -1,2 +0,0 @@
-<h1>Welcome to SvelteKit</h1>
-<p>Visit <a href="https://kit.svelte.dev">kit.svelte.dev</a> to read the documentation</p>

ui/src/routes/+page.ts

@@ -0,0 +1,16 @@
+import { redirect } from '@sveltejs/kit';
+import type { Load } from '@sveltejs/kit';
+import { get_store_value } from 'svelte/internal';
+
+import { userSession } from '$lib/stores/usersession';
+import { config as tsConfig, locale } from '$lib/translations';
+
+export const load: Load = async() => {
+    // If not connected, redirect to main website in the right language
+    if (!get_store_value(userSession)) {
+        const initLocale = locale.get() || window.navigator.language || window.navigator.languages[0] || tsConfig.fallbackLocale;
+        throw redirect(302, '/' + initLocale);
+    }
+
+    return {};
+}

ui/src/routes/en/+page.ts

@@ -0,0 +1,6 @@
+import { redirect } from '@sveltejs/kit';
+import type { Load } from '@sveltejs/kit';
+
+export const load: Load = async() => {
+    throw redirect(302, '/join');
+}

ui/src/routes/fr/+page.ts

@@ -0,0 +1,6 @@
+import { redirect } from '@sveltejs/kit';
+import type { Load } from '@sveltejs/kit';
+
+export const load: Load = async() => {
+    throw redirect(302, '/join');
+}