<?php

class AceAceCustomizerSectionsOrder {

    function __construct()
    {
        add_action( 'customize_controls_enqueue_scripts', array( $this, 'sections_order_script' ) );
        add_action( 'customize_register', array( $this, 'sections_order_register_control' ) );
        add_filter( 'section_priority', array( $this, 'sections_order_section_priority' ), 10, 2 );
        add_action( 'customize_preview_init', array( $this, 'sections_order_refresh_positions' ), 1 );
    }

    /**
     * Function to enqueue sections order main script.
     */
    function sections_order_script() {
        wp_enqueue_script( 'customizer-sections-order-script', ACE_DIR_URL . 'inc/theme-customizer/customizer-controls/customizer-sections-order/js/customizer-sections-order.js', array( 'jquery', 'jquery-ui-sortable' ), Ace::VERSION, true );
        $control_settings = array(
            'sections_container' => '#accordion-panel-your_panel_name > ul, #sub-accordion-panel-your_panel_name', // Edit this
            'blocked_items'      => '#accordion-section-blocked_section1, #accordion-section-blocked_section2, #accordion-section-blocked_section3', // Edit this
            'saved_data_input'   => '#customize-control-sections_order input', // Edit this
        );
        wp_localize_script( 'customizer-sections-order-script', 'control_settings', $control_settings );
        wp_enqueue_style( 'customizer-sections-order-style', ACE_DIR_URL . 'inc/theme-customizer/customizer-controls/customizer-sections-order/css/customizer-sections-order-style.css', array( 'dashicons' ), Ace::VERSION );
    }
    
    
    /**
     * Register input for sections order.
     *
     * @param object $wp_customize Customizer object.
     */
    function sections_order_register_control( $wp_customize ) {
    
        $wp_customize->add_setting(
            'sections_order', array(
                'sanitize_callback' => 'sanitize_sections_order',
            )
        );
    
        $wp_customize->add_control(
            'sections_order', array( // Edit this
                'section'  => 'your_section_name', // Edit this
                'type'     => 'hidden',
                'priority' => 80,
            )
        );
    
    }
    
    
    /**
     * Function for returning section priority
     *
     * @param int    $value Default priority.
     * @param string $key Section id.
     *
     * @return int
     */
    function sections_order_section_priority( $value, $key = '' ) {
        $orders = get_theme_mod( 'sections_order' );
        if ( ! empty( $orders ) ) {
            $json = json_decode( $orders );
            if ( isset( $json->$key ) ) {
                return $json->$key;
            }
        }
    
        return $value;
    }
    
    
    /**
     * Function to refresh customize preview when changing sections order
     */
    function sections_order_refresh_positions() {
        $section_order         = get_theme_mod( 'sections_order' ); // Edit this
        $section_order_decoded = json_decode( $section_order, true );
        if ( ! empty( $section_order_decoded ) ) {
            remove_all_actions( 'theme_sections' );
            foreach ( $section_order_decoded as $k => $priority ) {
                if ( function_exists( $k ) ) {
                    add_action( 'theme_sections', $k, $priority );
                }
            }
        }
    }
    
    /**
     * Function to sanitize sections order control
     *
     * @param string $input Sections order in json format.
     */
    function sanitize_sections_order( $input ) {
    
        $json = json_decode( $input, true );
        foreach ( $json as $section => $priority ) {
            if ( ! is_string( $section ) || ! is_int( $priority ) ) {
                return false;
            }
        }
        $filter_empty = array_filter( $json, 'check_not_empty' );
        return json_encode( $filter_empty );
    }
    
    /**
     * Function to filter json empty elements.
     *
     * @param int $val Element of json decoded.
     *
     * @return bool
     */
    function check_not_empty( $val ) {
        return ! empty( $val );
    }
    
}

new AceAceCustomizerSectionsOrder();