Fixed and optimized LocalTime

LocalTime.php

@@ -44,9 +44,9 @@ final class LocalTime
     public static function fromDateTime(DateTimeInterface $dateTime): self
     {
         return new self(
-            $dateTime->format('H'),
-            $dateTime->format('i'),
-            $dateTime->format('s')
+            (int) $dateTime->format('H'),
+            (int) $dateTime->format('i'),
+            (int) $dateTime->format('s')
         );
     }
 
@@ -55,9 +55,9 @@ final class LocalTime
      * @param string $minute [0:59]
      * @param string $second [0:59]
      */
-    public function __construct(string $hour, string $minute, string $second)
+    public function __construct(int $hour, int $minute, int $second)
     {
-        if (!$this->isValidTime((int) $hour, (int) $minute, (int) $second)) {
+        if (!$this->isValidTime($hour, $minute, $second)) {
             throw new InvalidArgumentException(sprintf(
                 'Invalid time: %d-%d-%d',
                 $hour,
@@ -76,16 +76,67 @@ final class LocalTime
         return $this->hour;
     }
 
+    public function withHour(int $hour): self
+    {
+        if ($hour < 0 || $hour > 23) {
+            throw new InvalidArgumentException(sprintf(
+                'Invalid time: %d-%d-%d',
+                $hour,
+                $this->minute,
+                $this->second
+            ));
+        }
+
+        $clone = clone $this;
+        $clone->hour = $hour;
+
+        return $clone;
+    }
+
     public function getMinute(): string
     {
         return $this->minute;
     }
 
+    public function withMinute(int $minute): self
+    {
+        if ($minute < 0 || $minute > 59) {
+            throw new InvalidArgumentException(sprintf(
+                'Invalid time: %d-%d-%d',
+                $this->hour,
+                $minute,
+                $this->second
+            ));
+        }
+
+        $clone = clone $this;
+        $clone->minute = $minute;
+
+        return $clone;
+    }
+
     public function getSecond(): string
     {
         return $this->second;
     }
 
+    public function withSecond(int $second): self
+    {
+        if ($second < 0 || $second > 59) {
+            throw new InvalidArgumentException(sprintf(
+                'Invalid time: %d-%d-%d',
+                $this->hour,
+                $this->minute,
+                $second
+            ));
+        }
+
+        $clone = clone $this;
+        $clone->second = $second;
+
+        return $clone;
+    }
+
     public function toDateTime($timezone = null): DateTimeImmutable
     {
         if (null === $timezone) {
@@ -104,7 +155,7 @@ final class LocalTime
         return DateTimeImmutable::createFromFormat(
             'H:i:s',
             sprintf(
-                '%s:%s:%s',
+                '%02d:%02d:%02d',
                 $this->hour,
                 $this->minute,
                 $this->second