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<?php |
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declare(strict_types=1); |
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namespace AhmadMayahi\Vision\Support; |
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use AhmadMayahi\Vision\Contracts\File as FileContract; |
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use AhmadMayahi\Vision\Exceptions\FileException; |
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use AhmadMayahi\Vision\Exceptions\UnsupportedFileTypeException; |
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use Exception; |
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use SplFileInfo; |
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use SplFileObject; |
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class File implements FileContract |
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{ |
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/** |
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* @param string|resource|SplFileInfo|SplFileObject $file Input file |
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* @param null|string $tempDirPath Full path to temporary directory |
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*/ |
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public function __construct(private $file, private ?string $tempDirPath = null) |
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{ |
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} |
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/** |
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* Generates vision compatible to be used as a file input in Google\Cloud\Vision\V1\ImageAnnotatorClient |
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* |
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* @return resource|string |
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* @throws FileException |
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*/ |
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public function toVisionFile() |
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{ |
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if (is_resource($this->file)) { |
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return $this->file; |
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} |
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if ($this->file instanceof SplFileInfo) { |
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$fileObj = $this->file->openFile(); |
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return (string) $fileObj->fread($this->file->getSize()); |
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} |
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if ($this->isGoogleStoragePath()) { |
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return (string) $this->file; |
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} |
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if (file_exists($this->file)) { |
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return (string) file_get_contents($this->file); |
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} |
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throw new FileException('File not found or not compatible!'); |
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} |
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public function getLocalPathname(): string |
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{ |
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if ($this->isGoogleStoragePath()) { |
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throw new Exception('Google Storage is not supported for this operation!'); |
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} |
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if (is_resource($this->file)) { |
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return $this->getStreamFilePath(); |
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} |
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if ($this->file instanceof SplFileInfo) { |
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return $this->file->getPathname(); |
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} |
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if (file_exists($this->file)) { |
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return $this->file; |
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} |
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throw new FileException('Cannot get the local file path'); |
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} |
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public function getStreamFilePath(): string |
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{ |
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if (false === $this->isResource()) { |
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throw new FileException('File is not resource!'); |
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} |
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$tempFile = $this->createTempFile(); |
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$this->saveStream($tempFile); |
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return $tempFile; |
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} |
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private function createTempFile(): string |
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{ |
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return tempnam($this->getTempDir(), sha1(uniqid())); |
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} |
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private function saveStream(string $tempFile) |
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{ |
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if (false === file_put_contents($tempFile, stream_get_contents($this->file))) { |
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throw new FileException('Could not write teo temp file: '.$tempFile); |
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} |
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} |
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public function getContents() |
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{ |
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if ($this->isGoogleStoragePath()) { |
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throw new UnsupportedFileTypeException('Google Storage is not supported!'); |
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} |
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if ($this->isLocalFile()) { |
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return file_get_contents($this->file); |
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} |
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if (is_resource($this->file)) { |
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return stream_get_contents($this->file); |
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} |
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if ($this->file instanceof SplFileInfo) { |
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return file_get_contents($this->file->getPathname()); |
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} |
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} |
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public function isGoogleStoragePath(): bool |
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{ |
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return is_string($this->file) && str_starts_with($this->file, 'gs://'); |
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} |
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public function isResource(): bool |
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{ |
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return is_resource($this->file); |
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} |
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public function isLocalFile(): bool |
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{ |
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return is_string($this->file) && file_exists($this->file); |
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} |
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private function getTempDir(): string |
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{ |
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return $this->tempDirPath ?? sys_get_temp_dir(); |
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} |
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} |
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ahmadmayahi /
php-google-vision
