115 lines
2.9 KiB
PHP
115 lines
2.9 KiB
PHP
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<?php
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/**
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* Хелпер для работы с датой и временем
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*/
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abstract class Date
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{
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const MYSQL_FORMAT = 'Y-m-d H:i:s';
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const MYSQL_FORMAT_DATE = 'Y-m-d';
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const DEADLINE_DONE = 'Сдан';
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private static $endingPeriodFomat = '%d квартал %d';
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public static function getQuarterByMonth($month)
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{
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assert('$month>0');
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assert('$month<13');
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return ceil(($month)/3);
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}
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/**
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* 2030-06-20 => 2 квартал 2030
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* @param string $ep ending period
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* @param Clock|null $clock
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* @return string
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*/
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public static function getFormatedEndingPeriod($ep, Clock $clock = null)
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{
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if ($clock === null) {
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$clock = new RealtimeClock();
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}
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$curQuarter = self::getQuarterByMonth($clock->now()->format('m'));
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$curYear = (int)$clock->now()->format('Y');
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$parts = explode('-', $ep);
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if (count($parts) != 3) {
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return '';
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}
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$quarter = self::getQuarterByMonth((int)$parts[1]);
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$year = (int)$parts[0];
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if (
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$year < $curYear || $year == $curYear
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&& $quarter < $curQuarter
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) {
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return self::DEADLINE_DONE;
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}
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return sprintf(self::$endingPeriodFomat, $quarter, $year);
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}
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public static function parseDateTime($str)
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{
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return (int)strtotime($str);
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}
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public static function dateToMysql($time)
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{
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return date(self::MYSQL_FORMAT_DATE, $time);
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}
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public static function dateTimeToMysql($time)
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{
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return date(self::MYSQL_FORMAT, $time);
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}
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public static function getLastPeriodDate($ts)
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{
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$parts = explode('-', date('Y-m-d', $ts));
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$i = floor($parts[1]/4)+1;
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$lastDay = ($i == 1 && $i ==2) ? 30 : 31;
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$month = 3*$i;
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return $parts[0] . "-" . $month . "-". $lastDay;
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}
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public static function getDateForApi($date)
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{
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$ts = self::parseDateTime($date);
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return date('d.m.Y', $ts);
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}
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public static function getListDeadlines($count = 10)
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{
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$lastDay = [
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3 => 31, // март
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6 => 30, // июнь
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9 => 30, // сентябрь
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12 => 31, // декабрь
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];
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// предыдущий квартал: сдан
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$quarter = self::getQuarterByMonth((int)date('m')) -1;
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$year = (int)date('Y');
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if (!$quarter) {
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$quarter = 4;
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--$year;
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}
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$list = [];
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while ($count--) {
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$month = $quarter*3;
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$ts = mktime(0, 0, 0, $month, $lastDay[$month], $year);
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$formated = self::dateToMysql($ts);
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$list[$ts] = self::getFormatedEndingPeriod($formated);
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if (++$quarter > 4) {
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$quarter = 1;
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++$year;
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}
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}
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return $list;
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}
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}
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