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<?php

    namespace Donut\Twitter;

    use Donut\Message;
    use Donut\Helpers;


    class Tweet
    {
        /** @var string */
        private $text;

        /** @var string|NULL */
        private $media;


        /**
         * @param  string
         * @param  string|NULL
         */
        public function __construct($text, $media)
        {
            $text = Helpers::stripWhitespace($text);

            if ($text === '') {
                throw new \Donut\InvalidArgumentException('No text of tweet.');
            }

            $this->text = $text;
            $this->media = $media;
        }


        /**
         * @return string
         */
        public function getText()
        {
            return $this->text;
        }


        /**
         * @return string|NULL
         */
        public function getMedia()
        {
            return $this->media;
        }


        /**
         * @return array
         */
        public function toArray()
        {
            return array(
                'text' => $this->text,
                'media' => $this->media,
            );
        }


        /**
         * @param  array
         * @return static
         * @throws \RuntimeException
         */
        public static function fromArray(array $data)
        {
            return new static(
                isset($data['text']) ? $data['text'] : NULL, // TODO: exception
                isset($data['media']) ? $data['media'] : NULL
            );
        }
    }