AyeCode / invoicing

    return apply_filters( 'wpinv_is_discount_maxed_out', $return, $code_id );

}

function wpinv_discount_is_min_met( $code_id = null ) {

    $discount = wpinv_get_discount( $code_id );

    $return   = false;

    if ( $discount ) {

        $min         = (float)wpinv_get_discount_min_total( $code_id );

        $cart_amount = (float)wpinv_get_cart_discountable_subtotal( $code_id );

        if ( !$min > 0 || $cart_amount >= $min ) {

            // Minimum has been met

            $return = true;

        } else {

            wpinv_set_error( 'wpinv-discount-error', sprintf( __( 'Minimum invoice of %s not met.', 'invoicing' ), wpinv_price( wpinv_format_amount( $min ) ) ) );

        }

    }

    return apply_filters( 'wpinv_is_discount_min_met', $return, $code_id );

}

function wpinv_discount_is_max_met( $code_id = null ) {

    $discount = wpinv_get_discount( $code_id );

    return apply_filters( 'wpinv_is_discount_min_met', $return, $code_id );

}

function wpinv_discount_is_max_met( $code_id = null ) {

    $discount = wpinv_get_discount( $code_id );

    $return   = false;

    if ( $discount ) {

        $max         = (float)wpinv_get_discount_max_total( $code_id );

        $cart_amount = (float)wpinv_get_cart_discountable_subtotal( $code_id );

        if ( !$max > 0 || $cart_amount <= $max ) {

            // Minimum has been met

            $return = true;

        } else {

            wpinv_set_error( 'wpinv-discount-error', sprintf( __( 'Maximum invoice of %s not met.', 'invoicing' ), wpinv_price( wpinv_format_amount( $max ) ) ) );

        }

    }

    return apply_filters( 'wpinv_is_discount_max_met', $return, $code_id );

}

function wpinv_discount_is_single_use( $code_id = 0 ) {

    $single_use = get_post_meta( $code_id, '_wpi_discount_is_single_use', true );