(function() {
	if (typeof jQuery === 'undefined') {
		console.warn('SSO async check: jQuery is not loaded');
		return;
	}
	
	if (window._ssoCheckDone === true) {
		return;
	}
	window._ssoCheckDone = true;
	
	var serverAppUrl = 'https://nsso.ewha.ac.kr/sso';
	var loginUrl = '/_custom/ewha/sso/login.jsp';
	
	// 원래 접근하려던 페이지 URL (세션에서 가져온 값 또는 현재 페이지 URL)
	var originalUrlElement = document.getElementById('sso-original-url');
	var originalUrl = originalUrlElement ? originalUrlElement.getAttribute('data-original-url') : null;
	var currentUrl = (originalUrl && originalUrl !== '' && originalUrl !== 'null') ? originalUrl : (window.location.pathname + window.location.search);
	
	// contextPath 제거
	var contextPath = '';
	if (contextPath && contextPath !== '' && currentUrl.startsWith(contextPath)) {
		currentUrl = currentUrl.substring(contextPath.length());
	}
	
	// SSO 인증 상태 확인 (비동기)
	$.ajax({
		url: serverAppUrl + '/api/ewha/auth/status',
		method: 'POST',
		dataType: 'json',
		xhrFields: {
			withCredentials: true
		},
		timeout: 2000,
		error: function(xhr, status, error) {
			console.log('SSO async check: Not logged in or error occurred');
			window._ssoCheckDone = false;
		},
		success: function(response) {
			var result = response.result;
			
			if (result === true || result == true) {
				console.log('SSO async check: Logged in - redirecting to SSO login flow');
				var finalLoginUrl = loginUrl + '?returnUrl=' + encodeURIComponent(currentUrl);
				window.location.href = finalLoginUrl;
			} else {
				console.log('SSO async check: Not logged in');
				window._ssoCheckDone = false;
			}
		}
	});
})();