TanvirHasan19 · November 3, 2025 10:27
diff --git a/functions.php b/functions.php
 // ==============================================================================
 // LPFW Percentage Limit - Limit Points Redemption to Percentage of Cart Value
 // ==============================================================================
 add_action('admin_footer', function() {
    $screen = get_current_screen();
    if (!$screen || (strpos($screen->id, 'woocommerce') === false && strpos($screen->id, 'acfw') === false)) {
        return;
    }
    ?>
    <script type="text/javascript">
    jQuery(document).ready(function($) {
        function injectInlineField() {
            if ($('#lpfw_inline_percentage_field').length > 0) {
                return; // Already added
            }
            
            // Look for ANY form table or settings container
            var $container = $('table.form-table, .acfw-settings-content, .lpfw-settings-content, #wpbody-content .wrap').first();
            
            if ($container.length > 0) {
                var fieldHtml = '<div id="lpfw_inline_percentage_field" style="margin: 20px 0; padding: 20px; background: #f0f8ff; border: 2px solid #2271b1; border-radius: 5px;">' +
                    '<h3 style="margin: 0 0 10px 0; color: #2271b1;">🎯 Points Redemption Percentage Limit</h3>' +
                    '<p style="margin: 0 0 10px 0;"><strong>Maximum percentage of cart value payable with points:</strong></p>' +
                    '<input type="number" id="lpfw_inline_input" value="<?php echo esc_js(get_option('lpfw_max_points_redeem_percentage', 50)); ?>" min="0" max="100" step="1" style="width: 100px; padding: 8px; font-size: 16px;" /> % ' +
                    '<button type="button" id="lpfw_inline_save" class="button button-primary">Save Setting</button>' +
                    '<p style="margin: 10px 0 0 0; color: #666; font-size: 13px;">Controls how much of an order can be paid with loyalty points. Example: 50 = up to 50% of cart total.</p>' +
                    '<div id="lpfw_inline_msg" style="margin-top: 10px;"></div>' +
                '</div>';
                
                if ($container.prop('tagName') === 'TABLE') {
                    $container.before(fieldHtml);
                } else {
                    $container.prepend(fieldHtml);
                }
                
                // Save handler
                $('#lpfw_inline_save').on('click', function() {
                    var val = $('#lpfw_inline_input').val();
                    $.post(ajaxurl, {
                        action: 'lpfw_save_percentage_limit',
                        value: val,
                        nonce: '<?php echo wp_create_nonce('lpfw_percentage_nonce'); ?>'
                    }, function(res) {
                        if (res.success) {
                            $('#lpfw_inline_msg').html('<span style="color: green; font-weight: bold;">✅ Saved successfully!</span>').fadeOut(3000);
                        }
                    });
                });
            }
        }
        
        // Try multiple times
        setTimeout(injectInlineField, 100);
        setTimeout(injectInlineField, 500);
        setTimeout(injectInlineField, 1500);
    });
    </script>
    <?php
 }, 999);

 // AJAX handler to save the percentage value
 add_action('wp_ajax_lpfw_save_percentage_limit', function() {
    check_ajax_referer('lpfw_percentage_nonce', 'nonce');
    
    if (!current_user_can('manage_woocommerce')) {
        wp_send_json_error('Permission denied');
    }
    
    $value = floatval($_POST['value']);
    $value = max(0, min(100, $value)); // Clamp between 0-100
    
    update_option('lpfw_max_points_redeem_percentage', $value);
    
    wp_send_json_success(array('value' => $value));
 });

 // Set percentage (change 50 to your desired percentage)
 if ( ! defined( 'LPFW_MAX_POINTS_REDEEM_PERCENTAGE' ) ) {
    define( 'LPFW_MAX_POINTS_REDEEM_PERCENTAGE', 50 ); // 50% of cart value
 }

 // Get the maximum percentage setting
 function lpfw_get_max_points_redeem_percentage() {
    return defined( 'LPFW_MAX_POINTS_REDEEM_PERCENTAGE' ) 
        ? floatval( LPFW_MAX_POINTS_REDEEM_PERCENTAGE ) 
        : floatval( get_option( 'lpfw_max_points_redeem_percentage', 50 ) );
 }

 // Calculate maximum points allowed based on cart percentage
 function lpfw_calculate_max_points_by_percentage( $cart_subtotal ) {
    $max_percentage = lpfw_get_max_points_redeem_percentage();
    
    if ( $max_percentage <= 0 || $max_percentage >= 100 ) {
        return PHP_INT_MAX; // No limit
    }
    
    $max_cart_value_redeemable = ( $cart_subtotal * $max_percentage ) / 100;
    $redeem_ratio = (int) get_option( 'acfw_loyalprog_redeem_points_ratio', 10 );
    
    return intval( $max_cart_value_redeemable * $redeem_ratio );
 }

 // Limit store credits amount based on cart percentage
 add_filter( 'acfw_store_credits_redeem_amount', 'lpfw_limit_store_credits_by_cart_percentage', 10, 2 );

 function lpfw_limit_store_credits_by_cart_percentage( $amount, $cart_total ) {
    $max_percentage = lpfw_get_max_points_redeem_percentage();
    
    if ( $max_percentage <= 0 || $max_percentage >= 100 ) {
        return $amount;
    }
    
    $max_amount_redeemable = ( $cart_total * $max_percentage ) / 100;
    return min( $amount, $max_amount_redeemable );
 }

 // Validate points redemption percentage limit
 add_filter( 'acfw_is_valid_store_credits_redeem_amount', 'lpfw_validate_points_percentage_limit', 10, 3 );

 function lpfw_validate_points_percentage_limit( $is_valid, $amount, $cart_total ) {
    if ( true !== $is_valid ) {
        return $is_valid;
    }
    
    $max_percentage = lpfw_get_max_points_redeem_percentage();
    
    if ( $max_percentage <= 0 || $max_percentage >= 100 ) {
        return $is_valid;
    }
    
    $max_amount_redeemable = ( $cart_total * $max_percentage ) / 100;
    
    if ( $amount > $max_amount_redeemable ) {
        return new WP_Error(
            'lpfw_points_exceed_percentage_limit',
            sprintf(
                __( 'You can only use points to pay for up to %s%% of your order total (maximum %s).', 'loyalty-program-for-woocommerce' ),
                $max_percentage,
                wc_price( $max_amount_redeemable )
            ),
            array(
                'status'                => 400,
                'amount'                => $amount,
                'max_amount_redeemable' => $max_amount_redeemable,
                'cart_total'            => $cart_total,
            )
        );
    }
    
    return $is_valid;
 }

 // ==============================================================================
 // END LPFW Percentage Limit
 // ==============================================================================
	// ==============================================================================
	// LPFW Percentage Limit - Limit Points Redemption to Percentage of Cart Value
	// ==============================================================================
	add_action('admin_footer', function() {
	$screen = get_current_screen();
	if (!$screen \|\| (strpos($screen->id, 'woocommerce') === false && strpos($screen->id, 'acfw') === false)) {
	return;
	}
	?>
	<script type="text/javascript">
	jQuery(document).ready(function($) {
	function injectInlineField() {
	if ($('#lpfw_inline_percentage_field').length > 0) {
	return; // Already added
	}

	// Look for ANY form table or settings container
	var $container = $('table.form-table, .acfw-settings-content, .lpfw-settings-content, #wpbody-content .wrap').first();

	if ($container.length > 0) {
	var fieldHtml = '<div id="lpfw_inline_percentage_field" style="margin: 20px 0; padding: 20px; background: #f0f8ff; border: 2px solid #2271b1; border-radius: 5px;">' +
	'<h3 style="margin: 0 0 10px 0; color: #2271b1;">🎯 Points Redemption Percentage Limit</h3>' +
	'<p style="margin: 0 0 10px 0;"><strong>Maximum percentage of cart value payable with points:</strong></p>' +
	'<input type="number" id="lpfw_inline_input" value="<?php echo esc_js(get_option('lpfw_max_points_redeem_percentage', 50)); ?>" min="0" max="100" step="1" style="width: 100px; padding: 8px; font-size: 16px;" /> % ' +
	'<button type="button" id="lpfw_inline_save" class="button button-primary">Save Setting</button>' +
	'<p style="margin: 10px 0 0 0; color: #666; font-size: 13px;">Controls how much of an order can be paid with loyalty points. Example: 50 = up to 50% of cart total.</p>' +
	'<div id="lpfw_inline_msg" style="margin-top: 10px;"></div>' +
	'</div>';

	if ($container.prop('tagName') === 'TABLE') {
	$container.before(fieldHtml);
	} else {
	$container.prepend(fieldHtml);
	}

	// Save handler
	$('#lpfw_inline_save').on('click', function() {
	var val = $('#lpfw_inline_input').val();
	$.post(ajaxurl, {
	action: 'lpfw_save_percentage_limit',
	value: val,
	nonce: '<?php echo wp_create_nonce('lpfw_percentage_nonce'); ?>'
	}, function(res) {
	if (res.success) {
	$('#lpfw_inline_msg').html('<span style="color: green; font-weight: bold;">✅ Saved successfully!</span>').fadeOut(3000);
	}
	});
	});
	}
	}

	// Try multiple times
	setTimeout(injectInlineField, 100);
	setTimeout(injectInlineField, 500);
	setTimeout(injectInlineField, 1500);
	});
	</script>
	<?php
	}, 999);

	// AJAX handler to save the percentage value
	add_action('wp_ajax_lpfw_save_percentage_limit', function() {
	check_ajax_referer('lpfw_percentage_nonce', 'nonce');

	if (!current_user_can('manage_woocommerce')) {
	wp_send_json_error('Permission denied');
	}

	$value = floatval($_POST['value']);
	$value = max(0, min(100, $value)); // Clamp between 0-100

	update_option('lpfw_max_points_redeem_percentage', $value);

	wp_send_json_success(array('value' => $value));
	});

	// Set percentage (change 50 to your desired percentage)
	if ( ! defined( 'LPFW_MAX_POINTS_REDEEM_PERCENTAGE' ) ) {
	define( 'LPFW_MAX_POINTS_REDEEM_PERCENTAGE', 50 ); // 50% of cart value
	}

	// Get the maximum percentage setting
	function lpfw_get_max_points_redeem_percentage() {
	return defined( 'LPFW_MAX_POINTS_REDEEM_PERCENTAGE' )
	? floatval( LPFW_MAX_POINTS_REDEEM_PERCENTAGE )
	: floatval( get_option( 'lpfw_max_points_redeem_percentage', 50 ) );
	}

	// Calculate maximum points allowed based on cart percentage
	function lpfw_calculate_max_points_by_percentage( $cart_subtotal ) {
	$max_percentage = lpfw_get_max_points_redeem_percentage();

	if ( $max_percentage <= 0 \|\| $max_percentage >= 100 ) {
	return PHP_INT_MAX; // No limit
	}

	$max_cart_value_redeemable = ( $cart_subtotal * $max_percentage ) / 100;
	$redeem_ratio = (int) get_option( 'acfw_loyalprog_redeem_points_ratio', 10 );

	return intval( $max_cart_value_redeemable * $redeem_ratio );
	}

	// Limit store credits amount based on cart percentage
	add_filter( 'acfw_store_credits_redeem_amount', 'lpfw_limit_store_credits_by_cart_percentage', 10, 2 );

	function lpfw_limit_store_credits_by_cart_percentage( $amount, $cart_total ) {
	$max_percentage = lpfw_get_max_points_redeem_percentage();

	if ( $max_percentage <= 0 \|\| $max_percentage >= 100 ) {
	return $amount;
	}

	$max_amount_redeemable = ( $cart_total * $max_percentage ) / 100;
	return min( $amount, $max_amount_redeemable );
	}

	// Validate points redemption percentage limit
	add_filter( 'acfw_is_valid_store_credits_redeem_amount', 'lpfw_validate_points_percentage_limit', 10, 3 );

	function lpfw_validate_points_percentage_limit( $is_valid, $amount, $cart_total ) {
	if ( true !== $is_valid ) {
	return $is_valid;
	}

	$max_percentage = lpfw_get_max_points_redeem_percentage();

	if ( $max_percentage <= 0 \|\| $max_percentage >= 100 ) {
	return $is_valid;
	}

	$max_amount_redeemable = ( $cart_total * $max_percentage ) / 100;

	if ( $amount > $max_amount_redeemable ) {
	return new WP_Error(
	'lpfw_points_exceed_percentage_limit',
	sprintf(
	__( 'You can only use points to pay for up to %s%% of your order total (maximum %s).', 'loyalty-program-for-woocommerce' ),
	$max_percentage,
	wc_price( $max_amount_redeemable )
	),
	array(
	'status' => 400,
	'amount' => $amount,
	'max_amount_redeemable' => $max_amount_redeemable,
	'cart_total' => $cart_total,
	)
	);
	}

	return $is_valid;
	}

	// ==============================================================================
	// END LPFW Percentage Limit
	// ==============================================================================
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