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<?php |
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namespace Imanghafoori\Helpers; |
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use Illuminate\Http\Exceptions\HttpResponseException; |
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use Symfony\Component\HttpFoundation\Response; |
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class Nullable |
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{ |
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private $result; |
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private $predicate = null; |
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private $message = []; |
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/** |
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* Nullable constructor. |
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* |
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* @param mixed $value |
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* @param array $message |
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* @param callable $predicate |
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*/ |
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public function __construct($value = null, array $message = [], $predicate = null) |
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{ |
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$this->result = $value; |
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$this->message = $message; |
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$this->predicate = $predicate; |
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} |
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public function getOr($default) |
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{ |
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$p = $this->getPredicate(); |
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if (!$p($this->result)) { |
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return $this->result; |
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} |
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if (is_callable($default)) { |
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return call_user_func_array($default, $this->message); |
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} |
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return $default; |
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} |
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public function getOrAbort($code, $message = '', array $headers = []) |
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{ |
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if (!is_null($this->result)) { |
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return $this->result; |
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} |
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abort($code, $message, $headers); |
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} |
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public function getOrSend($callable) |
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{ |
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if (!is_null($this->result)) { |
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return $this->result; |
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} |
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if (is_callable($callable)) { |
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$callable = call_user_func_array($callable, $this->message); |
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} |
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if (is_a($callable, Response::class)) { |
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$response = $callable; |
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} |
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if (isset($response)) { |
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throw new HttpResponseException($response); |
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} |
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throw new \InvalidArgumentException('You must provide a valid http response or a callable.'); |
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} |
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public function getOrThrow($exception, ...$parameters) |
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{ |
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if (!is_null($this->result)) { |
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return $this->result; |
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} |
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throw_if(true, $exception, ...$parameters); |
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} |
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public function onValue(callable $callable) |
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{ |
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if (! is_null($this->result)) { |
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return call_user_func_array($callable, [$this->result]); |
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} |
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} |
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private function getPredicate() |
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{ |
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if (is_callable($this->predicate)) { |
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return $this->predicate; |
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} |
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return function ($value) { |
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return is_null($value); |
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}; |
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} |
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} |
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imanghafoori1 /
laravel-nullable
