'use client';

import { useAuthContext } from '@/contexts/authProvider';
import { useMemberContext } from '@/contexts/memberProvider';
import { fetchLogout } from '@/lib/api/auth';
import { fetchMemberInfo } from '@/lib/api/account';
import { getAccessToken } from '@/lib/utils/server';
import { decodeAccessToken, throwError } from '@/lib/utils/client';

export default function useAuth()
{
    const { isAuthenticated, isLoading, setIsAuthenticated, checkAuth } = useAuthContext();
	const { member, setMember } = useMemberContext();

	// 로그인
	const login = async (rememberMe: boolean) => {
		const accessToken = await getAccessToken();
		if (!accessToken) {
			return;
		}

		const tokenData = decodeAccessToken(accessToken);
		if (!tokenData) {
			return;
		}

		try {
			const res = await fetchMemberInfo();
			throwError(res);

			setIsAuthenticated(true);
			setMember(res.data);

			localStorage.setItem('rememberMe', rememberMe.toString());
			localStorage.setItem("member", JSON.stringify(res.data));

			location.replace('/');
		} catch (err) {
			console.error('로그인 처리 중 오류:', err);
		}
    };

	// 로그아웃
	const logout = async () => {
        const res = await fetchLogout();

		if (res.success) {
			setIsAuthenticated(false);

			alert('로그아웃 되었습니다.');
			localStorage.setItem('rememberMe', "false");
			localStorage.removeItem('member');

			location.replace('/');
		}
	};

	// 로그인 여부 확인
	const isLoggedIn = async () => {
		const res = await checkAuth();

		if (!res) {
			if (confirm('로그인 후 이용해주세요.\n\n로그인 하시겠습니까?')) {
				location.href = '/login';
			} else {
				return false;
			}
		} else {
			return true;
		}
	};

   	return { isAuthenticated, isLoading, login, logout, member, isLoggedIn };
}