<?php
/**
 * Customizer: Sanitization Callbacks
 *
 * This file demonstrates how to define sanitization callback functions for various data types.
 * 
 * @package   Bicycle Repair Shop
 * @copyright Copyright (c) 2015, WordPress Theme Review Team
 * @license   http://www.gnu.org/licenses/old-licenses/gpl-2.0.html GNU General Public License, v2 (or newer)
 */

/**
 * Checkbox sanitization callback example.
 * 
 * Sanitization callback for 'checkbox' type controls. This callback sanitizes `$checked`
 * as a boolean value, either TRUE or FALSE.
 *
 * @param bool $checked Whether the checkbox is checked.
 * @return bool Whether the checkbox is checked.
 */
function bicycle_repair_shop_sanitize_checkbox( $checked ) {
	// Boolean check.
	return ( ( isset( $checked ) && true == $checked ) ? true : false );
}

/**
 * HEX Color sanitization callback example.
 *
 * - Sanitization: hex_color
 * - Control: text, WP_Customize_Color_Control
 * 
 * Note: sanitize_hex_color_no_hash() can also be used here, depending on whether
 * or not the hash prefix should be stored/retrieved with the hex color value.
 * 
 * @see sanitize_hex_color() https://developer.wordpress.org/reference/functions/sanitize_hex_color/
 * @link sanitize_hex_color_no_hash() https://developer.wordpress.org/reference/functions/sanitize_hex_color_no_hash/
 *
 * @param string               $hex_color HEX color to sanitize.
 * @param WP_Customize_Setting $setting   Setting instance.
 * @return string The sanitized hex color if not null; otherwise, the setting default.
 */
function bicycle_repair_shop_sanitize_hex_color( $hex_color, $setting ) {
	// Sanitize $input as a hex value without the hash prefix.
	$hex_color = sanitize_hex_color( $hex_color );
	
	// If $input is a valid hex value, return it; otherwise, return the default.
	return ( ! is_null( $hex_color ) ? $hex_color : $setting->default );
}

function bicycle_repair_shop_sanitize_email( $email, $setting ) {
    // Strips out all characters that are not allowable in an email address.
    $email = sanitize_email( $email );
    
    // If $email is a valid email, return it; otherwise, return the default.
    return ( ! is_null( $email ) ? $email : $setting->default );
}

/*radio button sanitization*/
function bicycle_repair_shop_sanitize_choices( $input, $setting ) {
    global $wp_customize;
    $control = $wp_customize->get_control( $setting->id );
    if ( array_key_exists( $input, $control->choices ) ) {
        return $input;
    } else {
        return $setting->default;
    }
}

if ( ! function_exists( 'bicycle_repair_shop_sanitize_integer' ) ) {
    function bicycle_repair_shop_sanitize_integer( $input ) {
        return (int) $input;
    }
}

function bicycle_repair_shop_sanitize_select( $input, $setting ){
    //input must be a slug: lowercase alphanumeric characters, dashes and underscores are allowed only
    $input = sanitize_key($input);
    //get the list of possible select options
    $choices = $setting->manager->get_control( $setting->id )->choices;
    //return input if valid or return default option
    return ( array_key_exists( $input, $choices ) ? $input : $setting->default );
}