import { create } from 'zustand';

const ACCESS_TOKEN_KEY = 'access_token';

const getStoredAccessToken = () => {
  if (typeof window === 'undefined') return null;
  return localStorage.getItem(ACCESS_TOKEN_KEY);
};

interface AuthState {
  accessToken: string | null;
  isAuthenticated: boolean;
  setAccessToken: (accessToken: string) => void;
  logout: () => void;
}

export const useAuthStore = create<AuthState>()((set) => ({
  accessToken: getStoredAccessToken(),
  isAuthenticated: !!getStoredAccessToken(),
  setAccessToken: (accessToken) => {
    if (typeof window !== 'undefined') {
      localStorage.setItem(ACCESS_TOKEN_KEY, accessToken);
    }

    set({
      accessToken,
      isAuthenticated: true,
    });
  },
  logout: () => {
    if (typeof window !== 'undefined') {
      localStorage.removeItem(ACCESS_TOKEN_KEY);
    }

    set({
      accessToken: null,
      isAuthenticated: false,
    });
  },
}));