import { create } from 'zustand';
import Cookies from 'js-cookie';
import type { AuthResponse } from '@/entities/auth';
import { REFRESH_TOKEN_COOKIE_KEY, TOKEN_COOKIE_KEY } from '@/shared/config/authTokens';

interface AuthState {
  accessToken: string | null;
  user: AuthResponse['user'] | null;
  isAuthenticated: boolean;
  
  // 액션
  setAuth: (data: AuthResponse) => void;
  logout: () => void;
}

/**
 * VibeRoom 전역 인증(Auth) 상태 저장소
 */
export const useAuthStore = create<AuthState>((set) => {
  const isClient = typeof window !== 'undefined';
  const savedToken = isClient ? Cookies.get(TOKEN_COOKIE_KEY) : null;

  return {
    accessToken: savedToken || null,
    user: null,
    isAuthenticated: !!savedToken,

    setAuth: (data: AuthResponse) => {
      const cookieOptions = { 
        secure: process.env.NODE_ENV === 'production',
        sameSite: 'strict' as const
      };

      // 1. Access Token 저장 (7일)
      Cookies.set(TOKEN_COOKIE_KEY, data.accessToken, { 
        ...cookieOptions,
        expires: 7 
      });
      
      // 2. Refresh Token 저장 (30일)
      if (data.refreshToken) {
        Cookies.set(REFRESH_TOKEN_COOKIE_KEY, data.refreshToken, { 
          ...cookieOptions,
          expires: 30 
        });
      }
      
      // 3. 상태 업데이트
      set({ 
        accessToken: data.accessToken, 
        user: data.user, 
        isAuthenticated: true 
      });
    },

    logout: () => {
      Cookies.remove(TOKEN_COOKIE_KEY);
      Cookies.remove(REFRESH_TOKEN_COOKIE_KEY);
      
      set({ 
        accessToken: null, 
        user: null, 
        isAuthenticated: false 
      });
    },
  };
});