refactor(web,server): use feature flags for oauth (#3928)

* refactor: oauth to use feature flags

* chore: open api

* chore: e2e test for authorize endpoint

web/src/routes/auth/login/+page.server.ts

@@ -1,5 +1,4 @@
 import { AppRoute } from '$lib/constants';
-import type { OAuthConfigResponseDto } from '@api';
 import { redirect } from '@sveltejs/kit';
 import type { PageServerLoad } from './$types';
 
@@ -10,23 +9,7 @@ export const load = (async ({ locals: { api } }) => {
     throw redirect(302, AppRoute.AUTH_REGISTER);
   }
 
-  let authConfig: OAuthConfigResponseDto = {
-    passwordLoginEnabled: true,
-    enabled: false,
-  };
-
-  try {
-    // TODO: Figure out how to get correct redirect URI server-side.
-    const { data } = await api.oauthApi.generateConfig({ oAuthConfigDto: { redirectUri: '/' } });
-    data.url = undefined;
-
-    authConfig = data;
-  } catch (err) {
-    console.error('[ERROR] login/+page.server.ts:', err);
-  }
-
   return {
-    authConfig,
     meta: {
       title: 'Login',
     },

web/src/routes/auth/login/+page.svelte

@@ -4,20 +4,22 @@
   import FullscreenContainer from '$lib/components/shared-components/fullscreen-container.svelte';
   import { AppRoute } from '$lib/constants';
   import { loginPageMessage } from '$lib/constants';
+  import { featureFlags } from '$lib/stores/feature-flags.store';
   import type { PageData } from './$types';
 
   export let data: PageData;
 </script>
 
-<FullscreenContainer title={data.meta.title} showMessage={!!loginPageMessage}>
-  <p slot="message">
-    <!-- eslint-disable-next-line svelte/no-at-html-tags -->
-    {@html loginPageMessage}
-  </p>
+{#if $featureFlags.loaded}
+  <FullscreenContainer title={data.meta.title} showMessage={!!loginPageMessage}>
+    <p slot="message">
+      <!-- eslint-disable-next-line svelte/no-at-html-tags -->
+      {@html loginPageMessage}
+    </p>
 
-  <LoginForm
-    authConfig={data.authConfig}
-    on:success={() => goto(AppRoute.PHOTOS, { invalidateAll: true })}
-    on:first-login={() => goto(AppRoute.AUTH_CHANGE_PASSWORD)}
-  />
-</FullscreenContainer>
+    <LoginForm
+      on:success={() => goto(AppRoute.PHOTOS, { invalidateAll: true })}
+      on:first-login={() => goto(AppRoute.AUTH_CHANGE_PASSWORD)}
+    />
+  </FullscreenContainer>
+{/if}