<?php
/**
 * Custom Sanitization Functions
 *
 * @link https://developer.wordpress.org/themes/theme-security/data-sanitization-escaping/
 */


// checkbox sanitization function
function prespa_sanitize_checkbox( $checked ) {
    // Boolean check.
    return ( ( isset( $checked ) && true == $checked ) ? true : false );
}

// select sanitization function
function prespa_sanitize_select( $input, $setting ) {
    // Ensure input is a slug.
    $input = sanitize_key( $input );
    // Get list of choices from the control associated with the setting.
    $choices = $setting->manager->get_control( $setting->id )->choices;
    // If the input is a valid key, return it; otherwise, return the default.
    return ( array_key_exists( $input, $choices ) ? $input : $setting->default );
}

// Allow html when adding Footer credits text in the theme customizer
function prespa_sanitize_html( $text ) {
	return wp_kses_post( force_balance_tags( $text ) );;
}

function prespa_sanitize_image( $image, $setting ) {
    /*
     * Array of valid image file types.
     *
     * The array includes image mime types that are included in wp_get_mime_types()
     */
    $mimes = array(
        'jpg|jpeg|jpe' => 'image/jpeg',
        'gif'          => 'image/gif',
        'png'          => 'image/png',
        'bmp'          => 'image/bmp',
        'tif|tiff'     => 'image/tiff',
        'ico'          => 'image/x-icon'
    );
    // Return an array with file extension and mime_type.
    $file = wp_check_filetype( $image, $mimes );
    // If $image has a valid mime_type, return it; otherwise, return the default.
    return ( $file['ext'] ? $image : '' );
}

function prespa_sanitize_url( $input ) {
    if ( strpos( $input, ',' ) !== false) {
        $input = explode( ',', $input );
    }
    if ( is_array( $input ) ) {
        foreach ($input as $key => $value) {
            $input[$key] = esc_url_raw( $value );
        }
        $input = implode( ',', $input );
    }
    else {
        $input = esc_url_raw( $input );
    }
    return $input;
}