Add getEastern member function

[packbundle] / Util / IntlUtil.php

diff --git a/Util/IntlUtil.php b/Util/IntlUtil.php
index 9f897e1e6b14654b328fc88969f91b65f4ebe62c..b37169d7007d8c6708bc64d6f664a7568d7917ec 100644 (file)
--- a/Util/IntlUtil.php
+++ b/Util/IntlUtil.php
@@ -22,6 +22,7 @@ class IntlUtil {
         * Format date
         */
        public function date(Environment $env, \DateTime $date, string $dateFormat = 'medium', string $timeFormat = 'medium', ?string $locale = null, \IntlTimeZone|\DateTimeZone|string|null $timezone = null, ?string $calendar = null, ?string $pattern = null) {
+               //Get converted date
                $date = twig_date_converter($env, $date, $timezone);
 
                //Set date and time formatters
@@ -33,6 +34,7 @@ class IntlUtil {
                        'full' => \IntlDateFormatter::FULL,
                ];
 
+               //Get formatter
                $formatter = \IntlDateFormatter::create(
                        $locale,
                        $formatters[$dateFormat],
@@ -42,6 +44,7 @@ class IntlUtil {
                        $pattern
                );
 
+               //Return formatted date
                return $formatter->format($date->getTimestamp());
        }
 
@@ -49,32 +52,78 @@ class IntlUtil {
         * Format number
         */
        public function number(int|float $number, $style = 'decimal', $type = 'default', ?string $locale = null) {
-               static $typeValues = array(
+               //Set types
+               static $types = [
                        'default' => NumberFormatter::TYPE_DEFAULT,
                        'int32' => NumberFormatter::TYPE_INT32,
                        'int64' => NumberFormatter::TYPE_INT64,
                        'double' => NumberFormatter::TYPE_DOUBLE,
                        'currency' => NumberFormatter::TYPE_CURRENCY,
-               );
+               ];
 
+               //Get formatter
                $formatter = $this->getNumberFormatter($locale, $style);
 
-               if (!isset($typeValues[$type])) {
-                       throw new SyntaxError(sprintf('The type "%s" does not exist. Known types are: "%s"', $type, implode('", "', array_keys($typeValues))));
+               //Without type
+               if (!isset($types[$type])) {
+                       throw new SyntaxError(sprintf('The type "%s" does not exist. Known types are: "%s"', $type, implode('", "', array_keys($types))));
                }
 
-               return $formatter->format($number, $typeValues[$type]);
+               //Return formatted number
+               return $formatter->format($number, $types[$type]);
        }
 
        /**
         * Format currency
         */
        public function currency(int|float $number, string $currency, ?string $locale = null) {
+               //Get formatter
                $formatter = $this->getNumberFormatter($locale, 'currency');
 
+               //Return formatted currency
                return $formatter->formatCurrency($number, $currency);
        }
 
+       /**
+        * Compute eastern for selected year
+        *
+        * @param string $year The eastern year
+        *
+        * @return DateTime The eastern date
+        */
+       public function getEastern(string $year): \DateTime {
+               //Set static results
+               static $results = [];
+
+               //Check if already computed
+               if (isset($results[$year])) {
+                       //Return computed eastern
+                       return $results[$year];
+               }
+
+               $d = (19 * ($year % 19) + 24) % 30;
+
+               $e = (2 * ($year % 4) + 4 * ($year % 7) + 6 * $d + 5) % 7;
+
+               $day = 22 + $d + $e;
+
+               $month = 3;
+
+               if ($day > 31) {
+                       $day = $d + $e - 9;
+                       $month = 4;
+               } elseif ($d == 29 && $e == 6) {
+                       $day = 10;
+                       $month = 4;
+               } elseif ($d == 28 && $e == 6) {
+                       $day = 18;
+                       $month = 4;
+               }
+
+               //Store eastern in data
+               return ($results[$year] = new \DateTime(sprintf('%04d-%02d-%02d', $year, $month, $day)));
+       }
+
        /**
         * Gets number formatter instance matching locale and style.
         *