From b850336d3b5cc0b634fa6304200bdbcfa90722db Mon Sep 17 00:00:00 2001
From: Christian Kraus <github@hanzi.cc>
Date: Mon, 29 Oct 2018 18:08:32 +0100
Subject: [PATCH] Use correct easter date for BR

---
 src/Provider/AbstractEaster.php |  3 +++
 src/Provider/BR.php             | 19 +++++--------------
 2 files changed, 8 insertions(+), 14 deletions(-)

diff --git a/src/Provider/AbstractEaster.php b/src/Provider/AbstractEaster.php
index b3de8bb..63bcbd8 100644
--- a/src/Provider/AbstractEaster.php
+++ b/src/Provider/AbstractEaster.php
@@ -66,6 +66,8 @@ protected function getEasterDates($year, $orthodox = false)
         $saturday->modify('-1 days');
         $ascensionDay = clone $easterSunday;
         $ascensionDay->modify('+39 days');
+        $shroveTuesday = clone $easterSunday;
+        $shroveTuesday->modify('-47 days');
 
 
         $pentecostSunday = clone $easterSunday;
@@ -78,6 +80,7 @@ protected function getEasterDates($year, $orthodox = false)
         $corpusChristi->modify('+60 days');
 
         return array(
+            'shroveTuesday' => $shroveTuesday,
             'maundyThursday' => $maundyThursday,
             'easterSunday' => $easterSunday,
             'easterMonday' => $easterMonday,
diff --git a/src/Provider/BR.php b/src/Provider/BR.php
index df83ef7..b76f4ed 100644
--- a/src/Provider/BR.php
+++ b/src/Provider/BR.php
@@ -2,9 +2,7 @@
 
 namespace Checkdomain\Holiday\Provider;
 
-use DateInterval;
 use DateTime;
-use DateTimeImmutable;
 
 /**
  * Brazilian Holiday Provider
@@ -13,7 +11,7 @@
  * @see http://www.planalto.gov.br/ccivil_03/leis/l6802.htm
  * @see https://pt.wikipedia.org/wiki/Feriados_no_Brasil
  */
-class BR extends AbstractProvider
+class BR extends AbstractEaster
 {
     const STATE_AC = 'Acre';
     const STATE_AL = 'Alagoas';
@@ -48,8 +46,7 @@ class BR extends AbstractProvider
      */
     public function getHolidaysByYear($year)
     {
-        // Easter
-        $easter = DateTimeImmutable::createFromFormat('U', easter_date($year));
+        $easter = $this->getEasterDates($year);
 
         $holidays = array(
             // National Fixed
@@ -62,9 +59,9 @@ public function getHolidaysByYear($year)
             '11-15' => $this->createData('Proclamação da República'),
             '12-25' => $this->createData('Natal'),
             // National Variable (and Optional)
-            $easter->sub(new DateInterval('P47D'))->format(self::DATE_FORMAT) => $this->createData('Carnaval'),
-            $easter->sub(new DateInterval('P2D'))->format(self::DATE_FORMAT)  => $this->createData('Sexta-Feira Santa'),
-            $easter->add(new DateInterval('P60D'))->format(self::DATE_FORMAT) => $this->createData('Corpus Christi'),
+            $easter['shroveTuesday']->format(self::DATE_FORMAT) => $this->createData('Carnaval'),
+            $easter['goodFriday']->format(self::DATE_FORMAT)  => $this->createData('Sexta-Feira Santa'),
+            $easter['corpusChristi']->format(self::DATE_FORMAT) => $this->createData('Corpus Christi'),
         );
 
         // Acre State
@@ -144,12 +141,6 @@ public function getHolidaysByYear($year)
         // Rio de Janeiro State
         $this->setHolidayForState($holidays, '04-23', self::STATE_RJ, 'São Jorge');
         $this->setHolidayForState($holidays, '11-20', self::STATE_RJ, 'Dia da Consciência Negra');
-        $this->setHolidayForState(
-            $holidays,
-            $easter->sub(new DateInterval('P47D'))->format(self::DATE_FORMAT),
-            self::STATE_RJ,
-            'Carnaval'
-        );
 
         // Rio Grande do Norte State
         $this->setHolidayForState($holidays, '10-03', self::STATE_RN, 'Mártires de Cunhaú e Uruaçu');