package com.zy.asrs.task.handler;

import com.zy.asrs.task.AbstractHandler;
import com.zy.asrs.task.core.ReturnT;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.transaction.interceptor.TransactionAspectSupport;

/**
 * Created by vincent on 2020/7/7
 */
@Service
public class OverYearLogHandler extends AbstractHandler<String> {

    @Autowired
    private JdbcTemplate jdbcTemplate;

    @Transactional
    public ReturnT<String> start() {
        try {
            batchDelete("asr_stk_hplc", 180);
            batchDelete("asr_wrk_detl_log", 360);
            batchDelete("asr_wrk_mast_log", 360);
            batchDelete("cust_wait_pakin_log", 360);
        } catch (Exception e) {
            e.printStackTrace();
            TransactionAspectSupport.currentTransactionStatus().setRollbackOnly();
            return FAIL.setMsg(e.getMessage());
        }
        return SUCCESS;
    }

    private void batchDelete(String tableName, int days) {
        int batchSize = 1000;
        int affected;
        do {
            String sql = String.format(
                    "WITH cte AS (SELECT TOP (%d) * FROM %s WHERE dateadd(day, %d, appe_time) <= getdate()) DELETE FROM cte",
                    batchSize, tableName, days
            );
            affected = jdbcTemplate.update(sql);
        } while (affected > 0);
    }


}