доставка в плавающем

app/helpers.php

@@ -36,6 +36,44 @@ function versioned_asset(string $path): string
     return $assetPath . $querySeparator . filemtime($publicPath);
 }
 
+function public_asset_exists(string $path): bool
+{
+    $assetPath = '/' . ltrim(strtok($path, '?') ?: $path, '/');
+
+    return is_file(base_path('public' . $assetPath));
+}
+
+function optimized_image_path(?string $path, string $mode = 'preview'): string
+{
+    $assetPath = trim((string) $path);
+    if ($assetPath === '' || !str_starts_with($assetPath, '/assets/uploads/old/products/')) {
+        return $assetPath;
+    }
+
+    $assetPath = '/' . ltrim(strtok($assetPath, '?') ?: $assetPath, '/');
+    $directory = rtrim(str_replace('\\', '/', dirname($assetPath)), '/');
+    $filename = basename($assetPath);
+    $isFull = str_starts_with($filename, 'full_');
+    $baseFilename = $isFull ? substr($filename, 5) : $filename;
+
+    $candidates = $mode === 'detail'
+        ? [$baseFilename, 'thumb_' . $baseFilename]
+        : ['thumb_' . $baseFilename, $baseFilename];
+
+    foreach ($candidates as $candidate) {
+        if ($candidate === '' || $candidate === $filename) {
+            continue;
+        }
+
+        $candidatePath = $directory . '/' . $candidate;
+        if (public_asset_exists($candidatePath)) {
+            return $candidatePath;
+        }
+    }
+
+    return $assetPath;
+}
+
 function view(string $template, array $data = []): void
 {
     View::render($template, $data);