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<?php

    namespace Deliverist\Builder\Commands;

    use Deliverist\Builder\Builder;
    use Deliverist\Builder\InvalidArgumentException;
    use Deliverist\Builder\ICommand;
    use Nette\Utils\FileSystem;


    class Copy implements ICommand
    {
        /**
         * @param  Builder
         * @param  string|string[]
         * @param  string|NULL
         */
        public function run(Builder $builder, $source = NULL, $destination = NULL)
        {
            if (!isset($source)) {
                throw new InvalidArgumentException("Missing parameter 'source'.");
            }

            $paths = array();

            if (is_array($source)) {
                $paths = $source;

            } else {
                if ($destination === NULL) {
                    throw new InvalidArgumentException("Missing parameter 'destination'.");
                }

                $paths[$source] = $destination;
            }

            foreach ($paths as $sourcePath => $destinationPath) {
                $builder->log("Copying '$sourcePath' destination '$destinationPath'.");
                FileSystem::copy($builder->getPath($sourcePath), $builder->getPath($destinationPath), FALSE);
            }
        }
    }