80 lines
2.4 KiB
PHP
80 lines
2.4 KiB
PHP
<?php
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declare(strict_types=1);
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namespace App\Services\Upload;
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use Illuminate\Support\Facades\Storage;
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use Intervention\Image\ImageManager;
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use RuntimeException;
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final class PreviewService
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{
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private ?ImageManager $manager = null;
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public function __construct()
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{
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try {
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$this->manager = extension_loaded('gd') ? ImageManager::gd() : ImageManager::imagick();
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} catch (\Throwable $e) {
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$this->manager = null;
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}
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}
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public function generateFromImage(string $uploadId, string $sourcePath): array
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{
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if ($this->manager === null) {
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throw new RuntimeException('PreviewService requires Intervention Image.');
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}
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$disk = Storage::disk('local');
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if (! $disk->exists($sourcePath)) {
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return $this->generatePlaceholder($uploadId);
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}
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$absolute = $disk->path($sourcePath);
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$previewPath = "tmp/drafts/{$uploadId}/preview.webp";
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$thumbPath = "tmp/drafts/{$uploadId}/thumb.webp";
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$preview = $this->manager->read($absolute)->scaleDown(1280, 1280);
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$thumb = $this->manager->read($absolute)->cover(320, 320);
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$previewEncoded = (string) $preview->encode(new \Intervention\Image\Encoders\WebpEncoder(85));
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$thumbEncoded = (string) $thumb->encode(new \Intervention\Image\Encoders\WebpEncoder(82));
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$disk->put($previewPath, $previewEncoded);
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$disk->put($thumbPath, $thumbEncoded);
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return [
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'preview_path' => $previewPath,
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'thumb_path' => $thumbPath,
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];
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}
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public function generateFromArchive(string $uploadId, ?string $screenshotPath = null): array
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{
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if ($screenshotPath !== null && Storage::disk('local')->exists($screenshotPath)) {
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return $this->generateFromImage($uploadId, $screenshotPath);
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}
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return $this->generatePlaceholder($uploadId);
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}
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public function generatePlaceholder(string $uploadId): array
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{
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$disk = Storage::disk('local');
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$previewPath = "tmp/drafts/{$uploadId}/preview.webp";
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$thumbPath = "tmp/drafts/{$uploadId}/thumb.webp";
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// 1x1 transparent webp
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$tinyWebp = base64_decode('UklGRhoAAABXRUJQVlA4TA0AAAAvAAAAAAfQ//73v/+BiOh/AAA=');
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$disk->put($previewPath, $tinyWebp ?: '');
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$disk->put($thumbPath, $tinyWebp ?: '');
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return [
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'preview_path' => $previewPath,
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'thumb_path' => $thumbPath,
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];
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}
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}
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