Merge pull request #144 from amirfaramarzi/master

add new features(getFirstDayOfWeek , getFirstDayOfMonth , getFirstDayOfYear)
morilog · Apr 14, 2022 · 825f462 · 825f462
2 parents aa5fd58 + 61e105d
commit 825f462
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diff --git a/src/Jalalian.php b/src/Jalalian.php
@@ -123,6 +123,45 @@ public static function fromDateTime($dateTime, \DateTimeZone $timeZone = null):
 
         return static::fromCarbon(new Carbon($dateTime, $timeZone));
     }
+
+    public function getFirstDayOfWeek(): Jalalian
+    {
+        return (new static(
+            $this->getYear(),
+            $this->getMonth(),
+            $this->getDay(),
+            $this->getHour(),
+            $this->getMinute(),
+            $this->getSecond(),
+            $this->getTimezone()
+        ))->subDays($this->getDayOfWeek());
+    }
+
+    public function getFirstDayOfMonth(): Jalalian
+    {
+        return new static(
+            $this->getYear(),
+            $this->getMonth(),
+            1,
+            $this->getHour(),
+            $this->getMinute(),
+            $this->getSecond(),
+            $this->getTimezone()
+        );
+    }
+
+    public function getFirstDayOfYear(): Jalalian
+    {
+        return new static(
+            $this->getYear(),
+            1,
+            1,
+            $this->getHour(),
+            $this->getMinute(),
+            $this->getSecond(),
+            $this->getTimezone()
+        );
+    }
 
     public function getMonthDays()
     {

diff --git a/tests/JalalianTest.php b/tests/JalalianTest.php
@@ -129,4 +129,49 @@ public function testGetWeekOfMonth()
         $jDate = new Jalalian(1395, 7, 20);
         $this->assertEquals($jDate->getWeekOfMonth(), 4);
     }
+
+    public function testGetFirstDayOfWeek()
+    {
+        $jDate = new Jalalian(1401, 1, 23);
+        $this->assertEquals($jDate->getFirstDayOfWeek()->format('Y-m-d'), '1401-01-20');
+
+        $jDate = new Jalalian(1395, 4, 24);
+        $this->assertEquals($jDate->getFirstDayOfWeek()->format('Y-m-d'), '1395-04-19');
+
+        $jDate = new Jalalian(1398, 11, 7);
+        $this->assertEquals($jDate->getFirstDayOfWeek()->format('Y-m-d'), '1398-11-05');
+
+        $jDate = new Jalalian(1400, 8, 19);
+        $this->assertEquals($jDate->getFirstDayOfWeek()->format('Y-m-d'), '1400-08-15');
+    }
+
+    public function testGetFirstDayOfMonth()
+    {
+        $jDate = new Jalalian(1401, 1, 23);
+        $this->assertEquals($jDate->getFirstDayOfMonth()->format('Y-m-d'), '1401-01-01');
+
+        $jDate = new Jalalian(1390, 5, 14);
+        $this->assertEquals($jDate->getFirstDayOfMonth()->format('Y-m-d'), '1390-05-01');
+
+        $jDate = new Jalalian(1399, 2, 29);
+        $this->assertEquals($jDate->getFirstDayOfMonth()->format('Y-m-d'), '1399-02-01');
+
+        $jDate = new Jalalian(1398, 10, 10);
+        $this->assertEquals($jDate->getFirstDayOfMonth()->format('Y-m-d'), '1398-10-01');
+    }
+
+    public function testGetFirstDayOfYear()
+    {
+        $jDate = new Jalalian(1401, 6, 11);
+        $this->assertEquals($jDate->getFirstDayOfYear()->format('Y-m-d'), '1401-01-01');
+
+        $jDate = new Jalalian(1399, 11, 28);
+        $this->assertEquals($jDate->getFirstDayOfYear()->format('Y-m-d'), '1399-01-01');
+
+        $jDate = new Jalalian(1394, 1, 12);
+        $this->assertEquals($jDate->getFirstDayOfYear()->format('Y-m-d'), '1394-01-01');
+
+        $jDate = new Jalalian(1393, 9, 5);
+        $this->assertEquals($jDate->getFirstDayOfYear()->format('Y-m-d'), '1393-01-01');
+    }
 }