<?php
/**
 * Created by PhpStorm.
 * User: YSY3
 * Date: 2019/1/8
 * Time: 12:01
 */

namespace App\Services;


class DateServices
{
    public static $is_debug=0;
    public static $times=1;
    /**
     * 返回日的开始和结束
     *
     * @return array
     */
    public static function startEndFormat($data){

        $data=self::addTimes($data);
        if(self::$is_debug)
        {
            dump($data);
        }
        return $data;
    }
    /**
     * 多少分钟前到现在
     * @param $number
     * @return array
     */
    public static function lastMinute($number,$field='start_at')
    {
        $last_minute =date('Y-m-d H:i:s',strtotime('-'.$number.' minute'));
        $data= [
            'start_at'=>$last_minute,
            'end_at'=>date('Y-m-d H:i:s')
        ];
        return  $field?$data[$field]:$data;

    }

    /**
     * 增加时间戳
     */
    public static function addTimes($data){

        if(self::$times)
        {
            $data= [
                'start_at'=>$data['start_at'].' 00:00:00',
                'end_at'=>$data['end_at'].' 23:59:59'
            ];
        }
        return $data;
    }
    public static function timeStartEndFormat($date){
        $data= [
            'start_at'=>$date,
            'end_at'=>$date
        ];
        return self::startEndFormat($data);
    }

    /**
     *
     * @param $date
     * @return mixed
     */
    public static function weekStartEndFormat($date){
        $timestamp=strtotime($date);
        $data['start_at']=date('Y-m-d', strtotime("this week Monday", $timestamp));
        $data['end_at']=date('Y-m-d', strtotime("this week Sunday", $timestamp));
        return self::startEndFormat($data);

    }

    /**
     * 今天日期
     * @return array
     */
    public static function today()
    {
        $to_day=date('Y-m-d');
        return self::timeStartEndFormat($to_day);

    }

    public static function dayRender($date,$day,$type){
        return date('Y-m-d',strtotime($type.$day.' day',strtotime($date)));
    }
    public static function incrDay($date,$day=1){
        $date=$date?$date:date('Y-m-d');
        return self::dayRender($date,$day,'+');
    }
    public static function decrDay($date,$day=1){
        $date=$date?$date:date('Y-m-d');
        return self::dayRender($date,$day,'-');
    }

    /**
     * 返回昨日开始和结束的日期
     *
     * @return array
     */
    public static function yesterday()
    {
        $yesterday =date('Y-m-d',strtotime('-1 day'));
        return self::timeStartEndFormat($yesterday);
    }

    /**
     * 返回周的开始日期和结束日期
     * @param string $date
     * @return mixed
     */
    public static function week($date='')
    {

        $to_day=$date?$date:date('Y-m-d');
        return self::weekStartEndFormat($to_day);

    }

    /**
     * 返回上周开始和结束的日期
     *
     * @return array
     */
    public static function lastWeek($date='')
    {
        $date=$date?$date:date('Y-m-d');
        $timestamp=strtotime($date);
        $data['start_at']=date('Y-m-d', strtotime("last week Monday", $timestamp));
        $data['end_at']=date('Y-m-d', strtotime("last week Sunday", $timestamp));
        return self::startEndFormat($data);
    }

    /**
     * 返回月开始和结束的
     *
     * @return array
     */
    public static function month($date='')
    {
        $date=$date?$date:date('Y-m-d');
        $timestamp=strtotime($date);
        $firstday = strtotime(date('Y-m-01', $timestamp));
        $data['start_at']=date('Y-m-d', strtotime("0 month", $firstday));
        $data['end_at']=date('Y-m-d', strtotime("+1 month -1 day", $firstday));
        return self::startEndFormat($data);

    }

    /**
     * 返回上个月开始和结束的时间戳
     *
     * @return array
     */
    public static function lastMonth($date='')
    {
        $date=$date?$date:date('Y-m-d');
        $timestamp=strtotime($date);
        $firstday = strtotime(date('Y-m-01', $timestamp));
        $data['start_at']=date('Y-m-d', strtotime("-1 month", $firstday));
        $data['end_at']=date('Y-m-d', strtotime("+0 month -1 day", $firstday));
        return self::startEndFormat($data);

        return [$begin, $end];
    }

    /**
     * 返回年开始和结束的时间戳
     *
     * @return array
     */
    public static function year($date='')
    {
        $date=$date?$date:date('Y-m-d');
        $timestamp=strtotime($date);
        $firstday = strtotime(date('Y-01-01', $timestamp));
        $data['start_at']=date('Y-m-d', strtotime("0 year", $firstday));
        $data['end_at']=date('Y-m-d', strtotime("+1 year -1 day", $firstday));
        return self::startEndFormat($data);
    }

    /**
     * 返回去年开始和结束的时间戳
     *
     * @return array
     */
    public static function lastYear($date)
    {
        $date=$date?$date:date('Y-m-d');
        $timestamp=strtotime($date);
        $firstday = strtotime(date('Y-m-01', $timestamp));
        $data['start_at']=date('Y-m-d', strtotime("-1 year", $firstday));
        $data['end_at']=date('Y-m-d', strtotime("0 year -1 day", $firstday));
        return self::startEndFormat($data);
    }

    public static function diffDay($date1,$date2=''){

        $date2=$date2?$date2:date('Y-m-d');
        if($date1>$date2){
            $startTime = strtotime($date1);
            $endTime = strtotime($date2);
        }else{
            $startTime = strtotime($date2);
            $endTime = strtotime($date1);
        }
        $diff = $startTime-$endTime;
        $day = $diff/86400;

        return  abs(intval($day));
    }

    public static function dayOf()
    {

    }

    /**
     * 获取几天前零点到现在/昨日结束的时间戳
     *
     * @param int $day 天数
     * @param bool $now 返回现在或者昨天结束时间戳
     * @return array
     */
    public static function dayToNow($day = 1, $now = true)
    {
        $end = time();
        if (!$now) {
            list($foo, $end) = self::yesterday();
        }

        return [
            mktime(0, 0, 0, date('m'), date('d') - $day, date('Y')),
            $end
        ];
    }

    /**
     * 返回几天前的时间戳
     *
     * @param int $day
     * @return int
     */
    public static function daysAgo($day = 1)
    {
        $nowTime = time();
        return $nowTime - self::daysToSecond($day);
    }

    /**
     * 返回几天后的时间戳
     *
     * @param int $day
     * @return int
     */
    public static function daysAfter($day = 1)
    {
        $nowTime = time();
        return $nowTime + self::daysToSecond($day);
    }

    /**
     * 天数转换成秒数
     *
     * @param int $day
     * @return int
     */
    public static function daysToSecond($day = 1)
    {
        return $day * 86400;
    }

    /**
     * 周数转换成秒数
     *
     * @param int $week
     * @return int
     */
    public static function weekToSecond($week = 1)
    {
        return self::daysToSecond() * 7 * $week;
    }

    private static function startTimeToEndTime()
    {

    }

}