<?php
/**
 * @package AKSRT
 */

namespace AKSRT\Core;

defined('ABSPATH') || exit;

/**
 * Featured cover (image / slide / video) for front-end submit.
 */
trait FrontSubmitFeatured {

    /**
     * @param array<string, mixed> $data
     */
    private function save_featured_meta(int $post_id, array $data, int $user_id): void {
        if (empty($data['featured_data']) && empty($data['featured_type'])) {
            return;
        }

        $featured = $data['featured_data'] ?? null;
        if (is_string($featured)) {
            $decoded = json_decode(wp_unslash($featured), true);
            $featured = is_array($decoded) ? $decoded : null;
        }
        if (!is_array($featured)) {
            // Flat payload: featured_type + fields.
            $featured = [
                'type' => sanitize_key((string) ($data['featured_type'] ?? '')),
                'data' => $data['featured_payload'] ?? $data,
            ];
        }

        $type = sanitize_key((string) ($featured['type'] ?? ''));
        $payload = is_array($featured['data'] ?? null) ? $featured['data'] : $featured;

        $post_meta = get_post_meta($post_id, DomainModel::POST_META_KEY, true);
        if (!is_array($post_meta)) {
            $post_meta = DomainModel::default_post_meta();
        }

        switch ($type) {
            case 'video':
                if (!$this->user_can_cap('new_post_video_cover', $user_id) && !$this->user_can_cap('new_post_image_cover', $user_id)) {
                    return;
                }
                $video = esc_url_raw((string) ($payload['url'] ?? $payload['video'] ?? ''));
                $pic   = esc_url_raw((string) ($payload['pic'] ?? $payload['poster'] ?? $payload['cover'] ?? ''));
                $post_meta['featured_video'] = $video;
                $post_meta['featured_slide'] = '';
                if ($pic !== '') {
                    $post_meta['thumbnail_url'] = $pic;
                    $post_meta['cover_images']  = $pic;
                    $this->maybe_set_thumbnail_url($post_id, $pic);
                }
                break;

            case 'slide':
                if (!$this->user_can_cap('new_post_slide_cover', $user_id) && !$this->user_can_cap('new_post_image_cover', $user_id)) {
                    return;
                }
                $ids  = $payload['ids'] ?? $payload['slides'] ?? $payload['images'] ?? [];
                $urls = [];
                if (is_string($ids)) {
                    $ids = array_filter(array_map('trim', explode(',', $ids)));
                }
                if (is_array($ids)) {
                    foreach ($ids as $item) {
                        if (is_array($item)) {
                            $u = esc_url_raw((string) ($item['url'] ?? ''));
                            if ($u !== '') {
                                $urls[] = $u;
                            } elseif (!empty($item['id'])) {
                                $src = wp_get_attachment_image_url((int) $item['id'], 'full');
                                if ($src) {
                                    $urls[] = $src;
                                }
                            }
                        } elseif (is_numeric($item)) {
                            $src = wp_get_attachment_image_url((int) $item, 'full');
                            if ($src) {
                                $urls[] = $src;
                            }
                        } else {
                            $u = esc_url_raw((string) $item);
                            if ($u !== '') {
                                $urls[] = $u;
                            }
                        }
                    }
                }
                $post_meta['featured_slide'] = implode(',', $urls);
                $post_meta['featured_video'] = '';
                if (!empty($urls[0])) {
                    $post_meta['thumbnail_url'] = $urls[0];
                    $post_meta['cover_images']  = $urls[0];
                    $this->maybe_set_thumbnail_url($post_id, $urls[0]);
                }
                break;

            case 'image':
                if (!$this->user_can_cap('new_post_image_cover', $user_id)) {
                    return;
                }
                $url = esc_url_raw((string) ($payload['url'] ?? $payload['image'] ?? ''));
                $id  = absint($payload['id'] ?? 0);
                if ($url === '' && $id > 0) {
                    $src = wp_get_attachment_image_url($id, 'full');
                    if ($src) {
                        $url = $src;
                    }
                }
                $post_meta['featured_video'] = '';
                $post_meta['featured_slide'] = '';
                if ($url !== '') {
                    $post_meta['thumbnail_url'] = $url;
                    $post_meta['cover_images']  = $url;
                    if ($id > 0) {
                        set_post_thumbnail($post_id, $id);
                    } else {
                        $this->maybe_set_thumbnail_url($post_id, $url);
                    }
                }
                break;

            case 'close':
            case 'none':
            case 'clear':
                $post_meta['featured_video'] = '';
                $post_meta['featured_slide'] = '';
                $post_meta['thumbnail_url']  = '';
                $post_meta['cover_images']   = '';
                delete_post_thumbnail($post_id);
                break;

            default:
                return;
        }

        update_post_meta($post_id, DomainModel::POST_META_KEY, $post_meta);
    }

    private function maybe_set_thumbnail_url(int $post_id, string $url): void {
        if ($url === '') {
            return;
        }
        // Prefer attachment if URL is local media.
        $attach_id = attachment_url_to_postid($url);
        if ($attach_id > 0) {
            set_post_thumbnail($post_id, $attach_id);
            return;
        }
        $this->set_thumbnail_from_url($post_id, $url);
    }
}