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<?php |
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/* |
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* This file is part of the EasyBanglaDate package. |
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* |
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* Copyright (c) 2015 Roni Saha |
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* |
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* This source file is subject to the MIT license that is bundled |
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* with this source code in the file LICENSE. |
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*/ |
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namespace EasyBanglaDate\Tools; |
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class Converter |
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{ |
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public static function getEnglishTimeFromBanglaDate(\DateTime $time, $bnDateArray, $morning ) |
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{ |
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self::adjustYearAndMonth($time, $bnDateArray, $morning); |
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$currentBnDate = self::getBengaliDateMonthYear($time, $morning); |
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$diff = self::getDiffInDays($currentBnDate, $bnDateArray); |
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if($diff == 0) { |
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return $time; |
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} |
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$time->modify(sprintf('%+d day', $diff)); |
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return self::getEnglishTimeFromBanglaDate($time, $bnDateArray, $morning); |
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} |
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private static function getArrayValueDifference($lhs, $rhs) |
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{ |
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$ret = array(); |
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foreach (array('year', 'month', 'day') as $key) { |
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$ret[$key] = $rhs[$key] - $lhs[$key]; |
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} |
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return $ret; |
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} |
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/** |
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* @param \DateTime $time |
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* @param int $morning |
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* @return array |
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*/ |
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public static function getBengaliDateMonthYear(\DateTime $time, $morning) |
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{ |
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$enMonth = $time->format('n'); |
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$day = (int)$time->format('j'); |
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$hour = (int)$time->format('G'); |
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list($bnDate, $bnMonth) = BanglaCalender::getBengaliDateAndMonth($enMonth, $day, $hour, $morning, $time->format('L')); |
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return array( |
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'year' => self::getBengaliYear($enMonth, $day, $hour, $morning, (int)$time->format('Y')), |
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'month' => $bnMonth, |
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'day' => $bnDate, |
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); |
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} |
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/** |
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* @param $enMonth |
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* @param $day |
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* @param $hour |
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* @param $morning |
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* @param $engYear |
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* @return int |
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*/ |
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private static function getBengaliYear($enMonth, $day, $hour, $morning, $engYear) |
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{ |
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if (self::isBeforeNewYear($enMonth, $day, $hour, $morning)) { |
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return $engYear - 594; |
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} |
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return $engYear - 593; |
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} |
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/** |
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* @param $enMonth |
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* @param $day |
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* @param $hour |
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* @param $morning |
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* @return bool |
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*/ |
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private static function isBeforeNewYear($enMonth, $day, $hour, $morning) |
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{ |
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return $enMonth < 4 || self::isAprilButBefore14th($enMonth, $day, $hour, $morning); |
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} |
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/** |
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* @param \DateTime $time |
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* @param $bnDateArray |
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* @param $morning |
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*/ |
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protected static function adjustYearAndMonth(\DateTime $time, $bnDateArray, $morning) |
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{ |
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$diffArray = self::getArrayValueDifference( |
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self::getBengaliDateMonthYear($time, $morning), |
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$bnDateArray |
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); |
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$time->modify(sprintf('%+d year %+d month', $diffArray['year'], $diffArray['month'])); |
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} |
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private static function getDiffInDays($lhs , $rhs) |
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{ |
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return self::getDaysFromDateArray($rhs) - self::getDaysFromDateArray($lhs); |
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} |
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private static function getDaysFromDateArray($arr) |
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{ |
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$days = $arr['year'] * 365.25; |
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if ($arr['month'] < 6) { |
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$days += ($arr['month'] * 31); |
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} else { |
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$days += (5 * 31) + (($arr['month'] - 5) * 30); |
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} |
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return $days + $arr['day']; |
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} |
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/** |
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* @param $enMonth |
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* @param $day |
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* @param $hour |
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* @param $morning |
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* @return bool |
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*/ |
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private static function isAprilButBefore14th($enMonth, $day, $hour, $morning) |
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{ |
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return ($enMonth == 4 && ($day < 14 || self::isBeforeMorningOf14thApril($day, $hour, $morning))); |
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} |
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/** |
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* @param $day |
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* @param $hour |
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* @param $morning |
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* @return bool |
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*/ |
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private static function isBeforeMorningOf14thApril($day, $hour, $morning) |
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{ |
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return ($day == 14 && $hour < $morning); |
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} |
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} |
ronisaha /
easy-bangla-date
