package com.poyee.base.controller;

import com.poyee.base.dto.BaseDto;
import com.poyee.base.dto.BaseReq;
import com.poyee.base.dto.UserInfo;
import com.poyee.base.service.BaseService;
import com.poyee.common.exception.AuthException;
import com.poyee.i18n.I18nUtils;
import com.poyee.util.DateUtils;
import com.poyee.util.ServletUtils;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;

import javax.servlet.http.HttpServletRequest;
import java.lang.reflect.Field;
import java.util.Date;
import java.util.Objects;

import static com.poyee.i18n.I18nMessageEnums.GET_USER_INFO_ERROR;
import static com.poyee.i18n.I18nMessageEnums.NO_PERMISSION;

/**
 *
 */
@Slf4j
public abstract class BaseController<S extends BaseService<T, R>, T extends BaseReq, R extends BaseDto> {

    @Autowired
    protected S baseService;

    /**
     * 日志
     * @param label
     * @param obj
     */
    public void console(String label, Object obj ){
        //当前操作用户 及 角色 ，操作时间
        String userName = "游客";
        String roleCode = "游客";
        try{
            UserInfo userInfo = ServletUtils.getUserInfo();
            String name = StringUtils.isNotBlank(userInfo.getDisplayName()) ? userInfo.getDisplayName() : userInfo.getSub();
            if(StringUtils.isBlank(name)){
                userName = StringUtils.isNotBlank(userInfo.getUserId()) ? "用户id："+userInfo.getUserId() : userName;
            }
            String role = userInfo.getRoleCode();
            if (StringUtils.isBlank(role)) {
                roleCode = userInfo.isMerchant() ? "商户" : roleCode;
            }
        } catch (Exception e) {
            log.error("当前用户[{}] 角色【{}】获取用户信息异常", userName, roleCode, e);
        } finally {
            log.info("{} {}\n" + " 当前用户[{}] 角色【{}】操作时间[{}] ", label, obj,
                     userName, roleCode , DateUtils.parseDateToStr(DateUtils.YYYY_MM_DD_HH_MM_SS, new Date()));
        }
    }

    /**
     * 检查商户权限
     * @param p
     * @param <P>
     */
    public <P extends BaseReq> void checkAndSetMerchantId(P p){
        try {
            UserInfo userInfo = ServletUtils.getUserInfo();
            if(userInfo.isMerchant()) {
                //解析 p 中的user_id
                if (Objects.nonNull(p)) {
                    Field merchantId = p.getClass().getDeclaredField("merchantId");
                    if (Objects.nonNull(merchantId)) {
                        merchantId.setAccessible(true);
                        String typeName = merchantId.getType().getName();
                        if (Objects.equals("java.lang.Long", typeName)) {
                            merchantId.set(p, Long.valueOf(userInfo.getMerchantId()));
                        } else if (Objects.equals("java.lang.Integer", typeName)) {
                            merchantId.set(p, userInfo.getMerchantId());
                        }
                    }
                }
            }
        } catch (NoSuchFieldException ne) {
            log.error("请求参数中无userId",ne);
            throw new AuthException(402, I18nUtils.get(NO_PERMISSION, "【权限不足】"));
        } catch (Exception e) {
            log.error("获取用户信息失败",e);
            throw new AuthException(I18nUtils.get(GET_USER_INFO_ERROR));
        }
    }
    /**
     * 获取request
     */
    public HttpServletRequest getRequest() {
        return ServletUtils.getRequest();
    }


}