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frontend/src/api/auth.ts

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+/**
+ * Authentication API endpoints
+ * Handles user login, registration, and logout operations
+ */
+
+import { apiClient } from './client';
+import type { LoginRequest, RegisterRequest, AuthResponse, User, SendVerifyCodeRequest, SendVerifyCodeResponse, PublicSettings } from '@/types';
+
+/**
+ * Store authentication token in localStorage
+ */
+export function setAuthToken(token: string): void {
+  localStorage.setItem('auth_token', token);
+}
+
+/**
+ * Get authentication token from localStorage
+ */
+export function getAuthToken(): string | null {
+  return localStorage.getItem('auth_token');
+}
+
+/**
+ * Clear authentication token from localStorage
+ */
+export function clearAuthToken(): void {
+  localStorage.removeItem('auth_token');
+  localStorage.removeItem('auth_user');
+}
+
+/**
+ * User login
+ * @param credentials - Username and password
+ * @returns Authentication response with token and user data
+ */
+export async function login(credentials: LoginRequest): Promise<AuthResponse> {
+  const { data } = await apiClient.post<AuthResponse>('/auth/login', credentials);
+
+  // Store token and user data
+  setAuthToken(data.access_token);
+  localStorage.setItem('auth_user', JSON.stringify(data.user));
+
+  return data;
+}
+
+/**
+ * User registration
+ * @param userData - Registration data (username, email, password)
+ * @returns Authentication response with token and user data
+ */
+export async function register(userData: RegisterRequest): Promise<AuthResponse> {
+  const { data } = await apiClient.post<AuthResponse>('/auth/register', userData);
+
+  // Store token and user data
+  setAuthToken(data.access_token);
+  localStorage.setItem('auth_user', JSON.stringify(data.user));
+
+  return data;
+}
+
+/**
+ * Get current authenticated user
+ * @returns User profile data
+ */
+export async function getCurrentUser(): Promise<User> {
+  const { data } = await apiClient.get<User>('/auth/me');
+  return data;
+}
+
+/**
+ * User logout
+ * Clears authentication token and user data from localStorage
+ */
+export function logout(): void {
+  clearAuthToken();
+  // Optionally redirect to login page
+  // window.location.href = '/login';
+}
+
+/**
+ * Check if user is authenticated
+ * @returns True if user has valid token
+ */
+export function isAuthenticated(): boolean {
+  return getAuthToken() !== null;
+}
+
+/**
+ * Get public settings (no auth required)
+ * @returns Public settings including registration and Turnstile config
+ */
+export async function getPublicSettings(): Promise<PublicSettings> {
+  const { data } = await apiClient.get<PublicSettings>('/settings/public');
+  return data;
+}
+
+/**
+ * Send verification code to email
+ * @param request - Email and optional Turnstile token
+ * @returns Response with countdown seconds
+ */
+export async function sendVerifyCode(request: SendVerifyCodeRequest): Promise<SendVerifyCodeResponse> {
+  const { data } = await apiClient.post<SendVerifyCodeResponse>('/auth/send-verify-code', request);
+  return data;
+}
+
+export const authAPI = {
+  login,
+  register,
+  getCurrentUser,
+  logout,
+  isAuthenticated,
+  setAuthToken,
+  getAuthToken,
+  clearAuthToken,
+  getPublicSettings,
+  sendVerifyCode,
+};
+
+export default authAPI;