Add additional services system (v0.5.0)

- Service CPT with pricing types: Included, Per Booking, Per Night
- ServiceCategory taxonomy with default categories
- Booking-services integration with service selector
- Real-time price calculation based on nights and quantity
- Services total and grand total display in booking admin

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

assets/js/admin.js

@@ -755,6 +755,185 @@
 		});
 	}
 
+	/**
+	 * Initialize service pricing type toggle.
+	 */
+	function initServicePricing() {
+		var $pricingTypeInputs = $('input[name="bnb_service_pricing_type"]');
+		var $priceRow = $('#bnb-service-price-row');
+		var $priceSuffix = $('#bnb-service-price-suffix');
+		var $priceDescription = $('#bnb-service-price-description');
+
+		if (!$pricingTypeInputs.length) {
+			return;
+		}
+
+		$pricingTypeInputs.on('change', function() {
+			var pricingType = $('input[name="bnb_service_pricing_type"]:checked').val();
+
+			if (pricingType === 'included') {
+				$priceRow.hide();
+			} else {
+				$priceRow.show();
+
+				if (pricingType === 'per_night') {
+					$priceSuffix.text(' / ' + (wpBnbAdmin.i18n.night || 'night'));
+					$priceDescription.text(wpBnbAdmin.i18n.perNightDescription || 'This price will be charged per night of the stay.');
+				} else {
+					$priceSuffix.text('');
+					$priceDescription.text(wpBnbAdmin.i18n.perBookingDescription || 'This price will be charged once for the booking.');
+				}
+			}
+		});
+	}
+
+	/**
+	 * Initialize booking services selector.
+	 */
+	function initBookingServices() {
+		var $servicesSelector = $('.bnb-services-selector');
+		var $servicesList = $servicesSelector.find('.bnb-services-list');
+		var $totalDisplay = $('#bnb-services-total-amount');
+
+		if (!$servicesSelector.length) {
+			return;
+		}
+
+		/**
+		 * Get current number of nights from booking form.
+		 *
+		 * @return {number} Number of nights.
+		 */
+		function getNights() {
+			var checkIn = $('#bnb_booking_check_in').val();
+			var checkOut = $('#bnb_booking_check_out').val();
+
+			if (checkIn && checkOut) {
+				var startDate = new Date(checkIn);
+				var endDate = new Date(checkOut);
+				var nights = Math.ceil((endDate - startDate) / (1000 * 60 * 60 * 24));
+				return Math.max(1, nights);
+			}
+
+			return parseInt($servicesSelector.data('nights'), 10) || 1;
+		}
+
+		/**
+		 * Calculate service line total.
+		 *
+		 * @param {jQuery} $item     Service item element.
+		 * @param {number} nights    Number of nights.
+		 * @return {number} Calculated price.
+		 */
+		function calculateServiceTotal($item, nights) {
+			var price = parseFloat($item.data('price')) || 0;
+			var pricingType = $item.data('pricing-type');
+			var quantity = parseInt($item.find('.bnb-service-qty-input').val(), 10) || 1;
+
+			if (pricingType === 'included') {
+				return 0;
+			}
+
+			if (pricingType === 'per_night') {
+				return price * quantity * nights;
+			}
+
+			return price * quantity;
+		}
+
+		/**
+		 * Update service line total display.
+		 *
+		 * @param {jQuery} $item Service item element.
+		 */
+		function updateServiceLineTotal($item) {
+			var nights = getNights();
+			var total = calculateServiceTotal($item, nights);
+			var $lineTotal = $item.find('.bnb-service-line-total');
+			var $totalValue = $item.find('.bnb-service-total-value');
+			var isSelected = $item.find('input[type="checkbox"]').is(':checked');
+			var pricingType = $item.data('pricing-type');
+
+			if (isSelected && pricingType !== 'included' && total > 0) {
+				$totalValue.text(formatPrice(total));
+				$lineTotal.show();
+			} else {
+				$lineTotal.hide();
+			}
+		}
+
+		/**
+		 * Update total services amount.
+		 */
+		function updateServicesTotal() {
+			var nights = getNights();
+			var total = 0;
+
+			$servicesList.find('.bnb-service-item').each(function() {
+				var $item = $(this);
+				var isSelected = $item.find('input[type="checkbox"]').is(':checked');
+
+				if (isSelected) {
+					total += calculateServiceTotal($item, nights);
+				}
+			});
+
+			$totalDisplay.text(formatPrice(total));
+		}
+
+		/**
+		 * Format price for display (simple formatting).
+		 *
+		 * @param {number} price Price value.
+		 * @return {string} Formatted price.
+		 */
+		function formatPrice(price) {
+			return parseFloat(price).toFixed(2);
+		}
+
+		// Handle service checkbox change.
+		$servicesList.on('change', 'input[type="checkbox"]', function() {
+			var $item = $(this).closest('.bnb-service-item');
+			var isSelected = $(this).is(':checked');
+
+			$item.toggleClass('selected', isSelected);
+
+			// Show/hide quantity input.
+			var $quantity = $item.find('.bnb-service-quantity');
+			if ($quantity.length) {
+				$quantity.toggle(isSelected);
+			}
+
+			updateServiceLineTotal($item);
+			updateServicesTotal();
+		});
+
+		// Handle quantity change.
+		$servicesList.on('change input', '.bnb-service-qty-input', function() {
+			var $item = $(this).closest('.bnb-service-item');
+			var maxQty = parseInt($item.data('max-quantity'), 10) || 1;
+			var value = parseInt($(this).val(), 10) || 1;
+
+			// Enforce min/max.
+			value = Math.max(1, Math.min(value, maxQty));
+			$(this).val(value);
+
+			updateServiceLineTotal($item);
+			updateServicesTotal();
+		});
+
+		// Update when booking dates change.
+		$('#bnb_booking_check_in, #bnb_booking_check_out').on('change', function() {
+			$servicesList.find('.bnb-service-item.selected').each(function() {
+				updateServiceLineTotal($(this));
+			});
+			updateServicesTotal();
+		});
+
+		// Initial calculation.
+		updateServicesTotal();
+	}
+
 	// Initialize on document ready.
 	$(document).ready(function() {
 		initLicenseManagement();
@@ -765,6 +944,8 @@
 		initBookingForm();
 		initCalendarPage();
 		initGuestSearch();
+		initServicePricing();
+		initBookingServices();
 	});
 
 })(jQuery);