package core.service;

import core.dao.BaseDao1;
import core.dao.BaseDao2;
import core.util.DBAction;
import db.model.AbstractModel;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.springframework.stereotype.Service;

import javax.annotation.Resource;
import java.io.Serializable;

/**
 * Created by reborn on 2017/7/28.
 */
@Service
public class BaseService {

    protected Logger log=LogManager.getLogger();
    @Resource
    protected BaseDao1 baseDao1;

    @Resource
    protected BaseDao2 baseDao2;

    public<T extends AbstractModel> String curd(DBAction action, T command) {
        Class<T> tClass = (Class<T>) command.getClass();
        try {
            switch (action) {
                case C:
                case U:
                    baseDao1.saveOrUpdate(command);
                    break;
                case R:
                    if(command.primaryKey()!=null) {
                        T model = baseDao1.get(tClass, command.primaryKey());
                        return model == null ? "找不到主键=" + command.primaryKey() + "" : model.toString();
                    }else{
                        throw new RuntimeException(command.getClass()+".primaryKey()方法返回null");
                    }
                case D:
                    if(command.getCheckeds()==null) {
                        baseDao1.delete(tClass, command.primaryKey());
                    }else{
                        for (Serializable checked:command.getCheckeds()){
                            baseDao1.delete(tClass,checked);
                        }
                    }
                    break;
            }
            return action.getEn() + " success";
        } catch (Exception e) {
            log.error((command.tableNote()==null?command.getClass():command.tableNote()) + "进行" + action.getCh() + "操作失败，原因是：" + e.getMessage());
        }
        return action.getEn() + " fail";
    }


}