package com.se.system.service;

import com.se.system.mapper.IndexMapper;
import org.springframework.stereotype.Component;

import javax.annotation.Resource;
import java.text.SimpleDateFormat;
import java.util.Calendar;

@Component
@SuppressWarnings("ALL")
public class IndexService {
    @Resource
    IndexMapper indexMapper;

    public static SimpleDateFormat YYYY_MM_DD_HH_MM_SS = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");

    public int newUserCount(int day) {
        Calendar calendar = Calendar.getInstance();
        calendar.add(Calendar.DAY_OF_MONTH, -day);
        String createTime = YYYY_MM_DD_HH_MM_SS.format(calendar.getTime());

        return indexMapper.newUserCount(createTime);
    }
}