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<?php |
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declare(strict_types=1); |
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namespace tkanstantsin\fileupload\saver; |
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use League\Flysystem\FilesystemInterface; |
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use tkanstantsin\fileupload\config\InvalidConfigException; |
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use tkanstantsin\fileupload\formatter\File; |
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use tkanstantsin\fileupload\model\IFile; |
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/** |
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* Class Saver allows store processed files. |
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* E.g. store uploaded files or cache cropped/prepared images. |
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* |
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* @todo add option to force rewriting existed file. |
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*/ |
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class Saver |
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{ |
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/** |
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* @var IFile |
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*/ |
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public $file; |
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/** |
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* Filesystem where file will be stored |
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* @var FilesystemInterface |
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*/ |
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public $filesystem; |
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/** |
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* File path in $filesystem |
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* @var string |
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*/ |
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public $path; |
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/** |
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* Saver constructor. |
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* @param IFile $file |
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* @param FilesystemInterface $filesystem |
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* @param string $path |
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* @throws InvalidConfigException |
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*/ |
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public function __construct(IFile $file, FilesystemInterface $filesystem, string $path) |
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{ |
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$this->file = $file; |
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$this->filesystem = $filesystem; |
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$this->path = $path; |
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if ($this->path === '') { |
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throw new InvalidConfigException('Saver path must be not empty'); |
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} |
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} |
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/** |
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* Copies, processes and saves file in $filesystem |
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* @param \tkanstantsin\fileupload\formatter\File $formatter |
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* @return bool |
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* @throws \InvalidArgumentException |
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* @throws \League\Flysystem\FileNotFoundException |
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*/ |
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public function save(File $formatter): bool |
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{ |
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$isCached = $this->isSaved(); |
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$isEmpty = $this->isEmpty(); |
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if ($isCached && !$isEmpty) { |
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return true; |
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} |
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if ($isEmpty) { |
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return false; |
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} |
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// checks if path is writable |
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// create new empty file or override existed one |
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// also caches empty result for non-formatted files |
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$this->filesystem->put($this->path, null); |
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$content = $formatter->getContent(); |
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if ($content === '') { |
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return false; |
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} |
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$saved = $this->write($content); |
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if ($saved) { |
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$formatter->afterCacheCallback(); |
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} |
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return $saved; |
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} |
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/** |
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* @return bool |
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*/ |
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protected function isEmpty(): bool |
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{ |
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return $this->filesystem->has($this->path) |
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&& $this->filesystem->getSize($this->path) === 0; |
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} |
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/** |
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* Checks if file is already in $path. |
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* @return bool |
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* @throws \League\Flysystem\FileNotFoundException |
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*/ |
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protected function isSaved(): bool |
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{ |
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return $this->filesystem->has($this->path) |
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&& $this->filesystem->getTimestamp($this->path) > $this->file->getUpdatedAt(); |
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} |
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/** |
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* Saves file into $filesystem |
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* @param $content |
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* @return bool |
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* @throws \InvalidArgumentException |
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*/ |
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protected function write($content): bool |
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{ |
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if ($content === false || $content === null) { |
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return false; |
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} |
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return \is_resource($content) |
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? $this->filesystem->putStream($this->path, $content) |
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: $this->filesystem->put($this->path, $content); |
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} |
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} |
t-kanstantsin /
fileupload
