Min and Max Order Amount for Woo Payment Gateways (Raihan): Añade compatibilidad con Bizum

<?php
/**
 * Min and Max Order Amount for Woo Payment Gateways (Raihan):
 * Añade compatibilidad con el método de pago Bizum
 * Nota: Requiere el plugin «WooCommerce Redsys Gateway Light» de José Conti
 */
add_filter( 'mmawpg_wc_settings_tab', function( $mmawpg_settings_array ) {
    unset( $mmawpg_settings_array['mmawpg_section_end'] );
    $mmawpg_settings_array['mmawpg_bizum_lite_min'] = array(
        'name' => esc_html__( 'Bizum (José Conti)', 'mmawpg' ),
        'type' => 'number',
        'desc' => esc_html__( 'Min amount', 'mmawpg' ),
        'id'   => 'mmawpg_bizum_lite_min',
        'custom_attributes' => array(
            'min'   => '0'
        ),
        'default' => '0',
        'placeholder' => '0'
    );
    $mmawpg_settings_array['mmawpg_bizum_lite_max'] = array(
        'type' => 'number',
        'desc' => esc_html__( 'Max amount', 'mmawpg' ),
        'id'   => 'mmawpg_bizum_lite_max',
        'custom_attributes' => array(
            'min'   => '0'
        ),
        'default' => '0',
        'placeholder' => '0',
    );
    $mmawpg_settings_array['mmawpg_section_end'] = array(
        'type' => 'sectionend',
        'id' => 'mmawpg_section_end_settings'
    );
    return $mmawpg_settings_array;
}, 10, 1 );
add_action('wp_ajax_mmawpg_ajax_action', 'ys_bizum_ajax_action_callback' );
add_action('wp_ajax_nopriv_mmawpg_ajax_action', 'ys_bizum_ajax_action_callback' );
function ys_bizum_ajax_action_callback(){
    if ( ( $mmawpg_payment_method = sanitize_text_field( $_POST['payment_type'] ) ) && $mmawpg_payment_method == 'bizumredsys' ) {
        // Nombre de la pasarela
        $GLOBALS['mmawpg_payment_method_title'] = 'Bizum';

        // Obtenemos el mínimo y máximo para Bizum
        $mmawpg_cod_min_amount = get_option( 'mmawpg_bizum_lite_min' );
        $mmawpg_cod_max_amount = get_option( 'mmawpg_bizum_lite_max' );

        // Establecemos el mínimo con base en el ajuste del envío
        $mmawpg_exc_shipping = get_option( 'mmawpg_exc_shipping_crg' );
        if( $mmawpg_exc_shipping == 'yes' ) {
            $GLOBALS['mmawpg_order_amount'] = WC()->cart->subtotal;
        } else {
            $GLOBALS['mmawpg_order_amount'] = WC()->cart->total;
        }
        // Llamamos a la clase principal del plugin para mostrar los avisos
        $mmawpg_main = new MMAWPG_Lite_Functions();
        if ( $mmawpg_cod_min_amount <= $mmawpg_cod_max_amount || $mmawpg_cod_max_amount == 0 ):
        if ( $mmawpg_cod_min_amount != 0 ):
        if ( $GLOBALS['mmawpg_order_amount'] < $mmawpg_cod_min_amount ){
            $mmawpg_main->mmawpg_print_notice( $mmawpg_cod_min_amount, 'min' );
        }
        endif;
        if ($mmawpg_cod_max_amount != 0):
        if ($mmawpg_cod_max_amount < $GLOBALS['mmawpg_order_amount']){
            $mmawpg_main->mmawpg_print_notice( $mmawpg_cod_max_amount, 'max' );
        }
        endif;
        endif;
    }
}