<?php
/**
* Class for the custom WP hooks.
*
* @package Merlin WP
*/

// Exit if accessed directly.
if ( ! defined( 'ABSPATH' ) ) {
    exit;
}

class Merlin_Hooks {
    /**
    * The class constructor.
    */
    public function __construct() {
        add_action( 'merlin_widget_settings_array', array( $this, 'fix_custom_menu_widget_ids' ) );
        add_action( 'import_start', array( $this, 'maybe_disable_creating_different_size_images_during_import' ) );
    }

    /**
    * Change the menu IDs in the custom menu widgets in the widget import data.
    * This solves the issue with custom menu widgets not having the correct (new) menu ID, because they
    * have the old menu ID from the export site.
    *
    * @param array $widget The widget settings array.
    */
    public function fix_custom_menu_widget_ids( $widget ) {
        // Skip (no changes needed), if this is not a custom menu widget.
        if ( ! array_key_exists( 'nav_menu', $widget ) || empty( $widget['nav_menu'] ) || ! is_int( $widget['nav_menu'] ) ) {
            return $widget;
        }

        // Get import data, with new menu IDs.
        $this->importer = new NtWPImporter\Importer( array( 'fetch_attachments' => true ) );
        $importer->restore_import_data_transient();

        $importer_mapping = $importer->get_mapping();
        $term_ids         = empty( $importer_mapping['term_id'] ) ? array() : $importer_mapping['term_id'];

        // Set the new menu ID for the widget.
        $widget['nav_menu'] = empty( $term_ids[ $widget['nav_menu'] ] ) ? $widget['nav_menu'] : $term_ids[ $widget['nav_menu'] ];

        return $widget;
    }

    /**
    * Wrapper function for the after all import action hook.
    *
    * @param int $selected_import_index The selected demo import index.
    */
    public function after_all_import_action( $selected_import_index ) {
        do_action( 'merlin_after_all_import', $selected_import_index );

        return true;
    }

    /**
    * Maybe disables generation of multiple image sizes (thumbnails) in the content import step.
    */
    public function maybe_disable_creating_different_size_images_during_import() {
        if ( ! apply_filters( 'merlin_regenerate_thumbnails_in_content_import', true ) ) {
            add_filter( 'intermediate_image_sizes_advanced', '__return_null' );
        }
    }
}