Indexing Hooks

add_filter('celersearch_indexable_post_statuses', function($statuses, $post) {
    // Add 'archived' status for custom post types
    if ($post->post_type === 'document') {
        $statuses[] = 'archived';
    }
    return $statuses;
}, 10, 2);

add_filter('celersearch_searchable_post_content', function($content, $post) {
    // Add ACF field content
    $custom_content = get_field('additional_content', $post->ID);
    if ($custom_content) {
        $content .= ' ' . $custom_content;
    }
    return $content;
}, 10, 2);

add_filter('celersearch_searchable_product_content', function($content, $post) {
    // Add product specifications
    $specs = get_post_meta($post->ID, 'specifications', true);
    if ($specs) {
        $content .= ' ' . $specs;
    }
    return $content;
}, 10, 2);

add_filter('celersearch_searchable_post_records', function($records, $post) {
    // Add custom data to all records
    foreach ($records as $record) {
        $data = $record->get_indexable_data();
        $data['reading_time'] = calculate_reading_time($post->post_content);
        // Note: You'll need to create a new record with modified data
    }
    return $records;
}, 10, 2);

// Only affects 'page' post type
add_filter('celersearch_searchable_post_page_records', function($records, $post) {
    // Page-specific customization
    return $records;
}, 10, 2);

add_filter('celersearch_searchable_product_records', function($records, $post) {
    // Add product-specific data
    return $records;
}, 10, 2);

// Only affects the 'product' post type
add_filter('celersearch_searchable_product_product_records', function($records, $post) {
    // Product-specific customization
    return $records;
}, 10, 2);

add_filter('celersearch_searchable_order_records', function($records, $order) {
    // Add order-specific data
    return $records;
}, 10, 2);

add_filter('celersearch_searchable_post_shared_attributes', function($attrs, $post) {
    // Add custom fields
    $attrs['views'] = (int) get_post_meta($post->ID, 'views', true);
    $attrs['rating'] = (float) get_post_meta($post->ID, 'rating', true);

    // Add computed fields
    $attrs['has_video'] = has_shortcode($post->post_content, 'video');

    return $attrs;
}, 10, 2);

add_filter('celersearch_searchable_post_product_shared_attributes', function($attrs, $post) {
    // Product-specific attributes
    $attrs['brand'] = get_post_meta($post->ID, 'brand', true);
    return $attrs;
}, 10, 2);

add_filter('celersearch_searchable_product_shared_attributes', function($attrs, $post) {
    $product = wc_get_product($post);

    // Add custom product data
    $attrs['is_bestseller'] = get_post_meta($post->ID, 'bestseller', true);
    $attrs['warranty'] = get_post_meta($post->ID, 'warranty_months', true);

    return $attrs;
}, 10, 2);

add_filter('celersearch_searchable_product_product_shared_attributes', function($attrs, $post) {
    $attrs['brand'] = get_post_meta($post->ID, 'brand', true);
    return $attrs;
}, 10, 2);

add_filter('celersearch_searchable_order_attributes', function($attrs, $order) {
    // Add custom order data
    $attrs['sales_rep'] = $order->get_meta('assigned_sales_rep');
    return $attrs;
}, 10, 2);

add_filter('celersearch_filterable_attribute_labels', function($labels) {
    // Add custom attribute label
    $labels['taxonomies.genre'] = 'Genre';

    // Rename an existing label
    $labels['taxonomies.category'] = 'Topic';

    return $labels;
});

add_filter('celersearch_posts_index_settings', function($settings, $index) {
    return $settings
        ->searchable_attributes([
            'title',
            'content',
            'excerpt',
            'custom_field',  // Add custom field
        ])
        ->filterable_attributes([
            'taxonomies.category.slug',
            'author.display_name',
            'status',
            'views',  // Add custom filter
        ])
        ->sortable_attributes([
            'created_at',
            'views',    // Add custom sort
            'rating',
        ]);
}, 10, 2);

add_filter('celersearch_products_index_settings', function($settings, $index) {
    return $settings
        ->sortable_attributes([
            'price',
            'sale_price',
            'popularity',
            'rating',
        ]);
}, 10, 2);

add_filter('celersearch_orders_index_settings', function($settings, $index) {
    return $settings
        ->filterable_attributes([
            'status',
            'customer.email',
            'sales_rep',
        ]);
}, 10, 2);

add_filter('celersearch_posts_available_searchable_attributes', function($attributes, $index) {
    $attributes[] = [
        'name'  => 'subtitle',
        'label' => 'Subtitle',
        'group' => 'Content',
    ];

    return $attributes;
}, 10, 2);

add_filter('celersearch_posts_available_filterable_attributes', function($attributes, $index) {
    $attributes[] = ['name' => 'views', 'label' => 'View count', 'group' => 'Custom'];
    return $attributes;
}, 10, 2);

add_filter('celersearch_posts_available_sortable_attributes', function($attributes, $index) {
    $attributes[] = ['name' => 'views', 'label' => 'View count', 'group' => 'Custom'];
    return $attributes;
}, 10, 2);

add_filter('celersearch_products_available_searchable_attributes', function($attributes, $index) {
    $attributes[] = ['name' => 'brand', 'label' => 'Brand', 'group' => 'Custom'];
    return $attributes;
}, 10, 2);

add_filter('celersearch_products_available_filterable_attributes', function($attributes, $index) {
    $attributes[] = ['name' => 'warranty_months', 'label' => 'Warranty (months)', 'group' => 'Custom'];
    return $attributes;
}, 10, 2);

add_filter('celersearch_products_available_sortable_attributes', function($attributes, $index) {
    $attributes[] = ['name' => 'total_sales', 'label' => 'Total sales', 'group' => 'Custom'];
    return $attributes;
}, 10, 2);

add_filter('celersearch_indexable_items_batch_size', function($size) {
    return 50;  // Filter default: 15
});

add_filter('celersearch_products_indexable_items_batch_size', function($size) {
    return 25;  // Products are heavier, use smaller batches
});

add_filter('celersearch_product_variations', function($variations, $product) {
    // Add variation-specific data
    foreach ($variations as &$var) {
        $var['custom_attr'] = get_post_meta($var['id'], 'custom', true);
    }
    return $variations;
}, 10, 2);

add_filter('celersearch_post_images_sizes', function($sizes) {
    // Only index these sizes
    return ['thumbnail', 'medium', 'large'];
});

add_filter('celersearch_get_post_images', function($images, $post_id) {
    // Add gallery images
    $gallery = get_post_meta($post_id, 'gallery_images', true);
    if ($gallery) {
        foreach ($gallery as $image_id) {
            $images[] = wp_get_attachment_image_src($image_id, 'large')[0];
        }
    }
    return $images;
}, 10, 2);

add_filter('celersearch_strip_patterns', function($patterns) {
    // Add pattern to strip custom shortcode
    $patterns[] = '/\[my_shortcode[^\]]*\]/';
    return $patterns;
});

add_filter('celersearch_get_post_object_id', function($id, $post_id, $index) {
    // Use custom ID format
    return 'post_' . $post_id . '_chunk_' . $index;
}, 10, 3);

add_filter('celersearch_searchable_post_types', function($post_types) {
    // Add a custom post type
    $post_types['event'] = 'event';

    // Remove attachments
    unset($post_types['attachment']);

    return $post_types;
});

add_filter('celersearch_supported_indices', function($indices) {
    $indices[] = [
        'name'   => 'Events',
        'type'   => 'events',
        'model'  => MyPlugin\Indices\EventsIndex::class,
        'fields' => [
            [
                'label'    => 'Event Types',
                'name'     => 'event_types',
                'type'     => 'dropdown',
                'options'  => fn() => [...],
                'multiple' => true,
            ],
        ],
    ];
    return $indices;
});

add_filter('celersearch_index_browse_list_fields', function($fields, $index) {
    // Show the price column for product indices
    $fields[] = 'price';

    return $fields;
}, 10, 2);

add_action('celersearch_rebuilt_items', function($index_slug) {
    // Clear caches, send notification, etc.
    wp_cache_delete('search_stats', 'celersearch');

    // Log completion
    error_log("Index {$index_slug} rebuilt at " . date('Y-m-d H:i:s'));
});

add_action('celersearch_before_get_candidate_objects', function($item) {
    // Pre-processing, caching, etc.
});

add_action('celersearch_after_get_candidate_objects', function($item) {
    // Post-processing, cleanup, etc.
});