import type { OrderData } from './types';

const API_URL = import.meta.env.VITE_API_URL || '/api';

export const login = async (email: string, password: string): Promise<boolean> => {
  try {
    const response = await fetch(`${API_URL}/login`, {
      method: 'POST',
      headers: {
        'Content-Type': 'application/json',
      },
      body: JSON.stringify({ email, password }),
    });

    if (response.ok) {
      const data = await response.json();
      localStorage.setItem('auth_token', data.token);
      return true;
    }
    return false;
  } catch (error) {
    console.error('Login failed', error);
    return false;
  }
};

export const logout = () => {
  localStorage.removeItem('auth_token');
  window.location.href = '/#/login';
};

export const isAuthenticated = (): boolean => {
  return !!localStorage.getItem('auth_token');
};

export const fetchData = async (): Promise<OrderData[]> => {
    try {
        const token = localStorage.getItem('auth_token');
        const response = await fetch(`${API_URL}/data`, {
            headers: {
                'Authorization': `Bearer ${token}`
            }
        });
        if (response.status === 401 || response.status === 403) {
            logout();
            return [];
        }
        if (!response.ok) return [];
        return await response.json();
    } catch (error) {
        console.error("Fetch failed", error);
        return [];
    }
};