<?php

namespace Modules\Stylist\Services;

use Illuminate\Filesystem\Filesystem;
use Modules\Stylist\Theme\Theme;

final class ThemeOptimizer
{
    public function __construct(private readonly Filesystem $files) {}

    public function optimize(Theme $theme): array
    {
        $result = ['css' => 0, 'js' => 0, 'images' => 0];
        foreach (['css' => 'css', 'js' => 'js'] as $type => $folder) {
            $directory = $theme->path().'/'.$folder;
            if (! $this->files->isDirectory($directory)) continue;
            foreach ($this->files->files($directory) as $file) {
                if ($file->getExtension() !== $type || str_ends_with($file->getFilename(), '.min.'.$type)) continue;
                $content = $file->getContents();
                $content = preg_replace('!/\*.*?\*/!s', '', $content) ?? $content;
                $content = preg_replace('/\s+/', ' ', $content) ?? $content;
                $content = preg_replace('/\s*([{}:;,>])\s*/', '$1', $content) ?? $content;
                $target = $file->getPath().'/'.$file->getBasename('.'.$type).'.min.'.$type;
                $this->files->put($target, trim($content));
                $result[$type]++;
            }
        }
        if (function_exists('imagewebp')) {
            foreach (['images', 'icons'] as $folder) {
                $directory = $theme->path().'/'.$folder;
                if (! $this->files->isDirectory($directory)) continue;
                foreach ($this->files->files($directory) as $file) {
                    $ext = strtolower($file->getExtension());
                    if (! in_array($ext, ['jpg', 'jpeg', 'png'], true)) continue;
                    $image = $ext === 'png' ? @imagecreatefrompng($file->getPathname()) : @imagecreatefromjpeg($file->getPathname());
                    if ($image) { imagepalettetotruecolor($image); imagewebp($image, $file->getPath().'/'.$file->getBasename('.'.$ext).'.webp', 82); imagedestroy($image); $result['images']++; }
                }
            }
        }
        return $result;
    }
}