package com.hx.mybatis.aes.springbean;

import com.gitee.sunchenbin.mybatis.actable.annotation.Column;
import com.gitee.sunchenbin.mybatis.actable.annotation.Table;
import com.hx.common.annotations.MysqlHexAes;
import com.hx.common.dao.CommonMapper;
import com.hx.common.service.CommonService;
import com.hx.exception.ServiceException;
import com.hx.mybatisTool.SqlSentence;
import com.hx.util.StringUtils;
import com.hx.util.mysql.aes.MysqlHexAesTool;

import javax.annotation.PostConstruct;
import java.lang.reflect.Field;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;

public class InitMysqlData {

    /**
     * 项目启动就执行后就执行该方法
     */
    @PostConstruct
    public static void initData(String packPath, CommonService commonService){

        //项目启动的时候填入
        if(!StringUtils.isEmpty(packPath)){
            Set<Class<?>> classes = VariableAesKey.classData(packPath);
            Map<String,String> aesKeysFild = new HashMap<>();
            boolean isAes = false;
            String tableName = null;
            String fildName = null;
            String fildValue = null;

            SqlSentence sqlSentence = new SqlSentence();
            Map<String,Object> values = new HashMap<>();

            for(Class<?> cl:classes){
                //表名称
                boolean hasAnnotation = cl.isAnnotationPresent(Table.class);
                if(!hasAnnotation){
                    continue;
                }
                Table table = cl.getAnnotation(Table.class);
                tableName = table.name();

                aesKeysFild = new HashMap<>();
                isAes = false;

                // 取得本类的全部属性
                Field[] fields = cl.getDeclaredFields();
                fields = VariableAesKey.getPatentFields(fields,cl);
                for (Field field:fields) {
                    fildName = null;
                    // 判断方法中是否有指定注解类型的注解
                    hasAnnotation = field.isAnnotationPresent(MysqlHexAes.class);
                    if (hasAnnotation) {
                        // 根据注解类型返回方法的指定类型注解
                        MysqlHexAes mysqlHexAes = field.getAnnotation(MysqlHexAes.class);

                        //String aesKeyField = mysqlHexAes.aesKeyField();
                        String aesKey = mysqlHexAes.aesKey();

                        if(StringUtils.isEmpty(aesKey)){
                            aesKey = VariableAesKey.AES_KEY;
                            if(StringUtils.isEmpty(aesKey)){
                                throw new RuntimeException("mysql的AES秘钥不能为空:"+field.getName());
                            }
                        }

                        hasAnnotation = field.isAnnotationPresent(Column.class);
                        if(hasAnnotation){
                            Column column = field.getAnnotation(Column.class);
                            fildName = column.name();
                        }
                        if(StringUtils.isEmpty(fildName)){
                            fildName = field.getName();
                        }

                        sqlSentence.sqlSentence("SELECT id,"+fildName+" FROM "+tableName,values);
                        List<Map<String,Object>> list = commonService.selectListMap(CommonMapper.class,sqlSentence);
                        for(Map<String,Object> map:list){
                            fildValue = (String)map.get(fildName);
                            System.out.println("fildValue:"+fildValue);
                            if(StringUtils.isEmpty(fildValue)){
                                continue;
                            }
                            if(fildValue.length()%32==0 && MysqlHexAesTool.isHexStrValid(fildValue)){
                                continue;
                            }
                            values.clear();
                            values.put("id",map.get("id"));
                            values.put("filedData",fildValue);
                            sqlSentence.sqlSentence("UPDATE "+tableName+" SET "+fildName+" = #{m.filedData} WHERE id = #{m.id}",values);
                            if(commonService.updateSentence(sqlSentence)!=1){
                                throw new ServiceException("更新超过1条，更新失败！");
                            }
                        }
                    }
                }
            }
        }
    }


}