<?php 
/**
 * Sanitize Functions
 *
 * Used to validate the user input of the theme settings
 * Based on https://github.com/WPTRT/code-examples/blob/master/customizer/sanitization-callbacks.php
 *
 * @package Ananya
 * @since 1.0
 */
 
/**
 * Sanitize Radio Control Setting
 * @since 1.0.0
 */
function ananya_sanitize_radio( $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 radio box 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 );                
  
}

/**
 * Sanitize Checkbox Control Setting
 * @since 1.0.0
 */
function ananya_sanitize_checkbox( $input ){
     
    // Boolean check.
	return ( ( isset( $input ) && true === $input ) ? true : false );
}

/**
 * Sanitize Text Control Setting
 * @since 1.0.0
 */
function ananya_sanitize_text( $input ) {
    /**          
    * @var array[] $allowedtags Array of KSES allowed HTML elements.
    * @since 1.0.0
    */
        $allowedtags = array(
                 'a'          => array(
                         'href'  => true,
                         'title' => true,
                 ),
                 'abbr'       => array(
                         'title' => true,
                 ),
                 'acronym'    => array(
                         'title' => true,
                 ),
                 'b'          => array(),
                 'blockquote' => array(
                         'cite' => true,
                 ),
                 'br'         => array(),
                 'button'     => array(
                         'disabled' => true,
                         'name'     => true,
                         'type'     => true,
                         'value'    => true,
                 ),
                 'cite'       => array(),
                 'code'       => array(),
                 'del'        => array(
                         'datetime' => true,
                 ),
                 'em'         => array(),
                 'i'          => array(),
                 'q'          => array(
                         'cite' => true,
                 ),
                 's'          => array(),
                 'strike'     => array(),
                 'strong'     => array(),
        );
    return wp_kses( force_balance_tags( $input ), $allowedtags );
}

/**
 * Sanitize Select Control Setting
 * @since 1.0.0
 */
function ananya_sanitize_select( $input, $setting ) {
	
	// get all select options
	$options = $setting->manager->get_control( $setting->id )->choices;
	
	// return default if not valid
	return ( array_key_exists( $input, $options ) ? $input : $setting->default );
}