import { create } from 'zustand';
import { persist } from 'zustand/middleware';

/**
 * 用户信息接口
 */
export interface User {
  id: number;
  email: string;
  full_name: string;
  role: string;
  permissions: string[];
  company_id: number;
}

/**
 * 认证状态接口
 */
interface AuthState {
  user: User | null;
  token: string | null;
  isAuthenticated: boolean;
  
  // Actions
  login: (user: User, token: string) => void;
  logout: () => void;
  setUser: (user: User) => void;
  updateUser: (userData: Partial<User>) => void;
}

/**
 * 认证状态 Store
 * 使用 localStorage 持久化
 */
export const useAuthStore = create<AuthState>()(
  persist(
    (set) => ({
      user: null,
      token: null,
      isAuthenticated: false,

      login: (user, token) => {
        // 保存到 localStorage
        if (typeof window !== 'undefined') {
          localStorage.setItem('auth_token', token);
          localStorage.setItem('company_id', String(user.company_id));
        }
        
        set({
          user,
          token,
          isAuthenticated: true,
        });
      },

      logout: () => {
        // 清除 localStorage
        if (typeof window !== 'undefined') {
          localStorage.removeItem('auth_token');
          localStorage.removeItem('company_id');
          // 清除 cookie
          document.cookie = 'auth_token=; path=/; max-age=0; SameSite=Lax';
          document.cookie = 'company_id=; path=/; max-age=0; SameSite=Lax';
        }
        
        set({
          user: null,
          token: null,
          isAuthenticated: false,
        });
      },

      setUser: (user) => {
        set({ user, isAuthenticated: true });
      },

      updateUser: (userData) => {
        set((state) => ({
          user: state.user ? { ...state.user, ...userData } : null,
        }));
      },
    }),
    {
      name: 'auth-storage',
      partialize: (state) => ({
        user: state.user,
        token: state.token,
        isAuthenticated: state.isAuthenticated,
      }),
    }
  )
);