package com.xcong.excoin.configurations.interceptor;

import com.xcong.excoin.common.LoginUserUtils;
import com.xcong.excoin.common.contants.AppContants;
import com.xcong.excoin.common.system.base.BaseEntity;
import com.xcong.excoin.modules.member.entity.MemberEntity;
import lombok.extern.slf4j.Slf4j;
import org.apache.ibatis.executor.Executor;
import org.apache.ibatis.mapping.MappedStatement;
import org.apache.ibatis.mapping.SqlCommandType;
import org.apache.ibatis.plugin.*;
import org.apache.ibatis.session.defaults.DefaultSqlSession;
import org.springframework.stereotype.Component;

import java.util.*;

/**
 * mybatis拦截器，自动注入创建人、创建时间、修改人、修改时间
 *
 * @author wzy
 * @date 2020-05-13
 **/
@Slf4j
@Component
@Intercepts({@Signature(type = Executor.class, method = "update", args = {MappedStatement.class, Object.class})})
public class MybatisInterceptor implements Interceptor {
    @Override
    public Object intercept(Invocation invocation) throws Throwable {
        MappedStatement mappedStatement = (MappedStatement) invocation.getArgs()[0];
        SqlCommandType sqlCommandType = mappedStatement.getSqlCommandType();

        Object parameter = invocation.getArgs()[1];
        if (parameter == null) {
            return invocation.proceed();
        }

        if (SqlCommandType.INSERT == sqlCommandType) {
            if (parameter instanceof DefaultSqlSession.StrictMap) {
                Map map = (Map) parameter;
                List list = (List) map.get("list");
                for (Object o : list) {
                    injectForInsert(o);
                }
            } else {
                injectForInsert(parameter);
            }
        }

        if (SqlCommandType.UPDATE == sqlCommandType) {
            if (parameter instanceof DefaultSqlSession.StrictMap) {
                Map map = (Map) parameter;
                List list = (List) map.get("list");
                for (Object o : list) {
                    injectForUpdate(o);
                }
            } else {
                injectForUpdate(parameter);
            }
        }

        return invocation.proceed();
    }

    @Override
    public Object plugin(Object o) {
        return Plugin.wrap(o, this);
    }

    @Override
    public void setProperties(Properties properties) {

    }

    public void injectForInsert(Object o) {
        MemberEntity member = LoginUserUtils.getUser();
        if (o instanceof BaseEntity) {
            BaseEntity baseEntity = (BaseEntity) o;
            if (member != null) {
                String by = member.getPhone() != null ? member.getPhone() : member.getEmail();
                baseEntity.setCreateBy(by);
                baseEntity.setUpdateBy(by);
            } else {
                baseEntity.setCreateBy(AppContants.SYSTEM_USER);
                baseEntity.setUpdateBy(AppContants.SYSTEM_USER);
            }
            baseEntity.setCreateTime(new Date());
            baseEntity.setUpdateTime(new Date());
        }
    }

    public void injectForUpdate(Object o) {
        MemberEntity member = LoginUserUtils.getUser();
        if (o instanceof BaseEntity) {
            BaseEntity baseEntity = (BaseEntity) o;
            if (member != null) {
                String by = member.getPhone() != null ? member.getPhone() : member.getEmail();
                baseEntity.setUpdateBy(by);
            } else {
                baseEntity.setUpdateBy(AppContants.SYSTEM_USER);
            }
            baseEntity.setUpdateTime(new Date());
        }
    }
}