Update money interop

NGUtech · Aug 30, 2020 · 5c16dfe · 5c16dfe
1 parent 009af82
commit 5c16dfe
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Showing 2 changed files with 15 additions and 23 deletions.
diff --git a/composer.lock b/composer.lock
diff --git a/src/ValueObject/Bitcoin.php b/src/ValueObject/Bitcoin.php
@@ -10,16 +10,18 @@
 
 use Daikon\Interop\Assertion;
 use Daikon\Interop\InvalidArgumentException;
-use Daikon\Interop\MakeEmptyInterface;
 use Daikon\Money\ValueObject\Money;
 use NGUtech\Bitcoin\Service\SatoshiCurrencies;
 
-final class Bitcoin extends Money implements MakeEmptyInterface
+final class Bitcoin extends Money
 {
-    /** @param string $value */
+    /** @param null|string $value */
     public static function fromNative($value): self
     {
-        Assertion::string($value, 'Must be a string.');
+        Assertion::nullOrString($value, 'Must be a string.');
+        if ($value === null) {
+            return new self;
+        }
 
         if (!preg_match('/^(?<amount>-?\d+)\s?(?<currency>M?SAT|BTC|XBT)$/i', $value, $matches)) {
             throw new InvalidArgumentException('Invalid amount.');
@@ -32,14 +34,4 @@ public static function zero($currency = null): self
     {
         return self::fromNative('0'.($currency ?? SatoshiCurrencies::MSAT));
     }
-
-    public static function makeEmpty(): self
-    {
-        return self::zero();
-    }
-
-    public function isEmpty(): bool
-    {
-        return $this->isZero();
-    }
 }