<?php

if (!defined('ABSPATH')) { exit; }

if (!class_exists('AIEO_Post_Duplicator', false)) {

class AIEO_Post_Duplicator {

    
    const ACTION = 'aieo_duplicate_post';

    
    public static function supported_types() {
        return apply_filters('aieo_duplicatable_post_types', array(
            'aieo_popup', 'aieo_competition', 'aieo_event', 'aieo_store', 'faq',
        ));
    }

    
    private static function skip_map() {
        return array(
            
            '*' => array('_edit_lock', '_edit_last', '_wp_old_slug', '_wp_old_date'),

            'aieo_popup' => array(
                
                
                '_aieo_pop_surface',
                
                
                
                '_aieo_pop_test',
            ),

            'aieo_competition' => array(
                
                
                '_aieo_comp_tnp_list_id',
                
                '_aieo_comp_winners_announcement',
                
                
                
                
                
                
                
                '_aieo_comp_gf_form_id',
            ),

            'aieo_event' => array(
                
                '_aieo_event_gf_form_id',
            ),

            'aieo_store' => array(
                
                
                
                '_aieo_grv_location_id',
            ),
        );
    }

    
    public static function skip_keys($post_type) {
        $map  = self::skip_map();
        $keys = array_merge(
            isset($map['*']) ? $map['*'] : array(),
            isset($map[$post_type]) ? $map[$post_type] : array()
        );
        return (array) apply_filters('aieo_duplicate_skip_meta', $keys, $post_type);
    }

    public static function register() {
        static $done = false;
        if ($done) { return; }
        $done = true;
        add_action('admin_post_' . self::ACTION, array(__CLASS__, 'handle'));
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        add_filter('post_row_actions', array(__CLASS__, 'row_action'), 10, 2);
        add_filter('page_row_actions', array(__CLASS__, 'row_action'), 10, 2);
    }

    
    public static function row_action($actions, $post) {
        if (!($post instanceof WP_Post) || !in_array($post->post_type, self::supported_types(), true)) {
            return $actions;
        }
        
        
        $type = get_post_type_object($post->post_type);
        $cap  = ($type && isset($type->cap->edit_posts)) ? $type->cap->edit_posts : 'edit_posts';
        if (!current_user_can($cap)) {
            return $actions;
        }
        $actions['aieo_duplicate'] = '<a href="' . esc_url(self::url($post->ID)) . '">'
            . esc_html__('Duplicate', 'ai-eshop-optimizer') . '</a>';
        return $actions;
    }

    
    public static function url($post_id) {
        return wp_nonce_url(
            add_query_arg(
                array('action' => self::ACTION, 'post' => (int) $post_id),
                admin_url('admin-post.php')
            ),
            self::ACTION . '_' . (int) $post_id
        );
    }

    
    public static function duplicate($post_id) {
        $post = get_post((int) $post_id);
        if (!$post) { return new WP_Error('aieo_dup_missing', __('That item no longer exists.', 'ai-eshop-optimizer')); }

        $title = trim((string) $post->post_title);
        if ($title === '') { $title = __('(no title)', 'ai-eshop-optimizer'); }

        $new_id = wp_insert_post(array(
            'post_type'      => $post->post_type,
            
            'post_status'    => 'draft',
            'post_title'     => sprintf(
                
                __('%s (copy)', 'ai-eshop-optimizer'), $title
            ),
            'post_content'   => $post->post_content,
            'post_excerpt'   => $post->post_excerpt,
            'post_parent'    => $post->post_parent,
            'menu_order'     => $post->menu_order,
            'comment_status' => $post->comment_status,
            'ping_status'    => $post->ping_status,
            'post_author'    => get_current_user_id(),
            'post_name'      => '', 
        ), true);

        if (is_wp_error($new_id)) { return $new_id; }

        $skip = self::skip_keys($post->post_type);
        foreach (get_post_meta($post->ID) as $key => $values) {
            if (in_array($key, $skip, true)) { continue; }
            foreach ((array) $values as $v) {
                
                
                add_post_meta($new_id, $key, maybe_unserialize($v));
            }
        }

        foreach (get_object_taxonomies($post->post_type) as $tax) {
            $terms = wp_get_object_terms($post->ID, $tax, array('fields' => 'ids'));
            if (!is_wp_error($terms) && $terms) {
                wp_set_object_terms($new_id, $terms, $tax);
            }
        }

        
        do_action('aieo_post_duplicated', $new_id, $post->ID, $post->post_type);

        return $new_id;
    }

    
    public static function handle() {
        $pid = isset($_GET['post']) ? (int) $_GET['post'] : 0;
        check_admin_referer(self::ACTION . '_' . $pid);

        $post = $pid > 0 ? get_post($pid) : null;
        if (!$post || !in_array($post->post_type, self::supported_types(), true)) {
            wp_die(esc_html__('That item cannot be duplicated.', 'ai-eshop-optimizer'), '', array('response' => 400));
        }
        $cap = defined('AIEO_CAPABILITY') ? AIEO_CAPABILITY : 'manage_options';
        if (!current_user_can($cap) || !current_user_can('edit_post', $pid)) {
            wp_die(esc_html__('You are not allowed to duplicate this item.', 'ai-eshop-optimizer'), '', array('response' => 403));
        }

        $new_id = self::duplicate($pid);
        if (is_wp_error($new_id)) {
            wp_die(esc_html($new_id->get_error_message()), '', array('response' => 500));
        }

        
        
        wp_safe_redirect(get_edit_post_link($new_id, ''));
        exit;
    }
}

}