absolutePathToPublicDirectory = $app->getProjectDir() . "/public"; $this->relativeThumbsDirectory = "data/storage/thumbs"; $this->absoluteThumbsDirectory = "$this->absolutePathToPublicDirectory/$this->relativeThumbsDirectory"; } public static function create(): static { return new static(); } public function sizeOperation(SizeOperation $sizeOperation): static { $this->sizeOperation = $sizeOperation; return $this; } public function fromRelativePath(string $path): static { $this->sourceRelativePath = $path; $this->sourceAbsolutePath = "$this->absolutePathToPublicDirectory/$this->sourceRelativePath"; if (!is_file($this->sourceAbsolutePath)) { // Pokud není obrázek nalezen, pokusíme se nastavit no-image. $this->sourceRelativePath = "assets/images/frontend/no-image.png"; $this->sourceAbsolutePath = "$this->absolutePathToPublicDirectory/$this->sourceRelativePath"; } if (!is_file($this->sourceAbsolutePath)) { throw new ImageNotFoundException("Obrázek: '$this->sourceAbsolutePath' se nepodařilo najít!"); } return $this; } public function getThumbnailPath(): string { $this->build(); return $this->composeThumbnailUrl(); } public function width(int $width): static { $this->width = $width; return $this; } public function height(int $height): static { $this->height = $height; return $this; } public function getPictureHtmlTag(): string { $this->build(); $alt = htmlspecialchars((string)$this->alt); $webpThumbnailUrl = $this->composeWebpThumbnailUrl(); $thumbnailUrl = $this->composeThumbnailUrl(); $width = $this->width ?? 200; $height = $this->height ?? 200; return << HTML; } public function alt(string $alt): static { $this->alt = $alt; return $this; } protected function build(): bool { if (!$this->sourceAbsolutePath) { throw new UnsetImagePathException("Pro vygenerování thumbnailu musí být nastavena cesta!"); } $thumbnailAbsolutePath = $this->composeAbsoluteThumbnailFilePath(); $webpThumbnailAbsolutePath = $this->composeAbsoluteWebpThumbnailFilePath(); $thumbnailExists = is_file($thumbnailAbsolutePath); $webpThumbnailExists = is_file($webpThumbnailAbsolutePath); if ($thumbnailExists && $webpThumbnailExists) { return true; } $image = $this->getImageManager()->read($this->sourceAbsolutePath); $originalWidth = $image->width(); $originalHeight = $image->height(); $image = match ($this->sizeOperation) { SizeOperation::RESIZE => $image->resize($this->width, $this->height), SizeOperation::SCALE_KEEP_ASCPECT_RATIO => $image->scale($this->width, $this->height), SizeOperation::COVER => $image->cover(width: $this->width ?? $originalWidth, height: $this->height ?? $originalHeight), SizeOperation::CONTAIN => $image->contain(width: $this->width ?? $originalWidth, height: $this->height ?? $originalHeight), }; if (!$thumbnailExists) { $this->saveImage(image: $image, path: $thumbnailAbsolutePath); } if (!$webpThumbnailExists) { $webp = $image->toWebp(); $this->saveImage(image: $webp, path: $webpThumbnailAbsolutePath); } return true; } protected function composeAbsoluteThumbnailFilePath(): string { return "$this->absoluteThumbsDirectory/{$this->composeRelativeThumbnailFilePath()}"; } protected function composeRelativeThumbnailFilePath(): string { $width = (string)($this->width ?? "default"); $height = (string)($this->height ?? "default"); return "{$this->sizeOperation->value}-$width-$height/$this->sourceRelativePath"; } protected function composeAbsoluteWebpThumbnailFilePath(): string { return "{$this->composeAbsoluteThumbnailFilePath()}." . self::THUMBNAIL_EXTENSION; } protected function getImageManager(): \Intervention\Image\ImageManager { if ($this->imageManager === null) { $this->imageManager = new \Intervention\Image\ImageManager(new \Intervention\Image\Drivers\Gd\Driver()); } return $this->imageManager; } protected function saveImage(\Intervention\Image\Interfaces\ImageInterface|\Intervention\Image\Interfaces\EncodedImageInterface $image, string $path): void { $directory = dirname($path); if (!is_dir($directory)) { $result = mkdir($directory, 0755, recursive: true); if (!$result) { throw new UnableToCreateThumbnailDirectoryException("Nepodařilo se vytvořit adresář: '$directory'!"); } } $image->save($path); } protected function composeThumbnailUrl(): string { return "/$this->relativeThumbsDirectory/{$this->composeRelativeThumbnailFilePath()}"; } protected function composeWebpThumbnailUrl(): string { return "{$this->composeThumbnailUrl()}." . self::THUMBNAIL_EXTENSION; } }