Auth redirects, language switch, basic profile

exam/react/src/api/Api.ts

@@ -6,8 +6,9 @@ const BASE = 'https://khofmann.userpage.fu-berlin.de/phpCourse/exam/api/';
 let instance: ApiImpl;
 
 class ApiImpl {
-  //FIXME: PRIVATE when reauth token exists
-  public token?: string;
+  private token?: string;
+  private refreshToken?: string;
+  private self?: User;
 
   constructor() {
     if (instance) {
@@ -19,18 +20,26 @@ class ApiImpl {
   }
 
   public hasAuth = () => this.token !== undefined;
+  public isAdmin = () => this.hasAuth() && this.self?.isAdmin;
+  public getAuthenticatedUser = () => this.self;
+  public getCurrentSession = () => [this.token, this.refreshToken];
 
-  //FIXME: Currently returns Auth token, switch to reauth token
-  public logIn = async (email: string, password: string): Promise<[User, string]> => {
+  public logIn = async (email: string, password: string): Promise<void> => {
     const { user, token } = await (await this.post('login', { email, password })).json();
+    this.self = user;
+    this.isAdmin = user.isAdmin;
     this.token = token;
-
-    return [user, token];
   };
 
   public logOut = async (): Promise<boolean> => {
-    this.token = undefined;
-    return await (await this.postAuth('logout')).json();
+    try {
+      return await (await this.postAuth('logout')).json();
+    } catch {
+      return false;
+    } finally {
+      this.self = undefined;
+      this.token = undefined;
+    }
   };
 
   public posts = async (page?: number): Promise<PostListNonAuth | PostListAuth> => {
@@ -41,6 +50,10 @@ class ApiImpl {
     return await (await this.get(url)).json();
   };
 
+  public user = async (id?: number): Promise<User> => {
+    return await (await this.getAuth(`users/${id ?? this.self?.id}`)).json();
+  };
+
   private post = async (
     endpoint: string,
     body: Record<string, unknown> | undefined = undefined,