<?php

namespace App\Services;

use App\Models\Post;

class PostMediaCacher extends MediaCacher
{
    public function cache(Post $post): void
    {
        $dirty = false;

        if ($resolved = $this->resolveUrl($post->image_url, "posts/images/{$post->id}")) {
            $post->image_url = $resolved;
            $dirty = true;
        }

        if ($resolved = $this->resolveUrl($post->video_url, "posts/videos/{$post->id}")) {
            $post->video_url = $resolved;
            $dirty = true;
        }

        if ($carousel = $post->carousel_images) {
            $changed = false;

            foreach ($carousel as $i => &$item) {
                if (! empty($item['url']) && $resolved = $this->resolveUrl($item['url'], "posts/carousel_images/{$post->id}/{$i}")) {
                    $item['url'] = $resolved;
                    $changed = true;
                }

                if (! empty($item['video_url']) && $resolved = $this->resolveUrl($item['video_url'], "posts/carousel_images/{$post->id}/{$i}-video")) {
                    $item['video_url'] = $resolved;
                    $changed = true;
                }
            }
            unset($item);

            if ($changed) {
                $post->carousel_images = $carousel;
                $dirty = true;
            }
        }

        if ($dirty) {
            $post->saveQuietly();
        }
    }
}