package com.imyeyu.api.annotation;

import com.imyeyu.api.modules.common.service.SettingService;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import lombok.RequiredArgsConstructor;
import org.springframework.context.annotation.Lazy;
import org.springframework.lang.NonNull;
import org.springframework.stereotype.Component;
import org.springframework.web.method.HandlerMethod;
import org.springframework.web.servlet.HandlerInterceptor;

import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.List;

/**
 * 启用配置注解处理器
 *
 * @author 夜雨
 * @since 2023-07-15 10:01
 */
@Component
@RequiredArgsConstructor(onConstructor_ = {@Lazy})
public class EnableSettingInterceptor implements HandlerInterceptor {

	private final SettingService service;

	public boolean preHandle(@NonNull HttpServletRequest req, @NonNull HttpServletResponse resp, @NonNull Object handler) throws InvocationTargetException, IllegalAccessException {
		if (handler instanceof HandlerMethod handlerMethod) {
			EnableSetting annotation = handlerMethod.getMethodAnnotation(EnableSetting.class);
			if (annotation == null) {
				return true;
			}
			EnableSetting.Logic logic = annotation.logic();
			List<Boolean> valueList = new ArrayList<>();
			for (Method method : annotation.getClass().getMethods()) {
				if (method.getName().equals("message")) {
					continue;
				}
				Enum<?>[] enums = (Enum<?>[]) method.invoke(annotation);
				for (Enum<?> anEnum : enums) {
					valueList.add(service.getSystem(anEnum).isTrue());
				}
			}
			if (logic == EnableSetting.Logic.AND) {
				return valueList.stream().allMatch(Boolean::booleanValue);
			} else {
				return valueList.stream().anyMatch(Boolean::booleanValue);
			}
		}
		return true;
	}
}