package incheon.com.security;

import incheon.com.security.vo.LoginVO;
import org.springframework.core.MethodParameter;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.annotation.AuthenticationPrincipal;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.web.bind.support.WebDataBinderFactory;
import org.springframework.web.context.request.NativeWebRequest;
import org.springframework.web.method.support.HandlerMethodArgumentResolver;
import org.springframework.web.method.support.ModelAndViewContainer;

/**
 * fileName       : CustomAuthenticationPrincipalResolver
 * author         : crlee
 * date           : 2023/07/13
 * description    :
 * ===========================================================
 * DATE              AUTHOR             NOTE
 * -----------------------------------------------------------
 * 2023/07/13        crlee       최초 생성
 */
public class CustomAuthenticationPrincipalResolver implements HandlerMethodArgumentResolver {

    @Override
    public boolean supportsParameter(MethodParameter parameter) {
        return parameter.hasParameterAnnotation(AuthenticationPrincipal.class) &&
                parameter.getParameterType().equals(LoginVO.class);
    }

    @Override
    public Object resolveArgument(MethodParameter parameter, ModelAndViewContainer mavContainer,
                                  NativeWebRequest webRequest, WebDataBinderFactory binderFactory) throws Exception {

        Authentication authentication = SecurityContextHolder.getContext().getAuthentication();
        if (authentication == null ||
                authentication.getPrincipal() == null ||
                "anonymousUser".equals(authentication.getPrincipal()) 
        ) {
            return new LoginVO();
        }

        return authentication.getPrincipal();
    }
}