https://www.lelabofragrances.ca/js/acdc-cart-limit-qty.js

1/** 
2	This script is for GUI behavior when limiting quantity of cart items.
3 */
4var cartdata;
5
6// Only acdc-cart.js should call this with the proper AJAX cart data provided.
7function initCartLimit(_cartdata) {
8	console.log(_cartdata);
9	cartdata = _cartdata;
10	updateCartLimit();
11}
12
13// Call this to begin updating the webpage with qty limiting GUI behavior
14function updateCartLimit() {
15	console.log("update cart limit");
16
17	if ( $('.acdc-cart-limit').length == 0 ) {
18		// nothing needs limitation
19		console.log("nothing to limit");
20		return;
21	}
22
23	var qtyMap = getCartQuantities();
24	
25	// Run through all elements that need GUI limitation
26	$('.acdc-cart-limit').each(function(index) {
27		var itemId = $(this).data('sku-id');
28		
29		// Only perform GUI updates IFF the cart qty limit is reached
30		if (typeof qtyMap[itemId] != 'undefined') {
31			console.log('capping itemId::' + itemId + ' with limit::' + $(this).data('qty-limit') + ' and cartQty::' + qtyMap[itemId]);
32			renderCartLimit( $(this), $(this).data('qty-limit'), qtyMap[itemId] );
33		} else {
34			// assuming the item was removed from minicart
35			renderCartLimit( $(this), $(this).data('qty-limit'), 0 );
36		}
37	});
38}
39
40function getCartQuantities() {
41	// Aggregate what's already in the cart by itemId and qty
42	var qtyMap = {};
43
44	if (cartdata) {
45		cartdata.cart.cartItems.forEach(function (cartItem) {
46			var itemId = cartItem.itemId;
47			if (typeof qtyMap[itemId] == 'undefined') {
48				qtyMap[itemId] = 1;
49			} else {
50				qtyMap[itemId] = qtyMap[itemId] + 1;
51			}
52		});
53	}
54
55	return qtyMap;
56}
57
58// Performs the actual GUI behavior changes
59function renderCartLimit ( target, _limit, _current ) {
60	limit = parseInt(_limit);
61	current = parseInt(_current);
62	var remaining = limit - current;
63	
64	// qty dropdown - pdp, samples page
65	if (target.is('select')) {
66		target.dropdown("destroy");
67		target.html('');
68		let start = 0
69		if ($(target).hasClass('qty-cartlimit-alt')){
70			start = 1;
71		}
72
73		if (start > remaining) {
74			var $option = $(document.createElement('option'));
75			$option.val(0);
76			$option.html(0);
77			target.append($option);
78		} else {
79			for (var x = start; x <= remaining; x++) {
80				var $option = $(document.createElement('option'));
81				$option.val(x);
82				$option.html(x);
83				target.append($option);
84			}
85		}
86
87		if ($(target).hasClass('acdc-cart-limit')){
88			$(target).data("remaining-limit", remaining);
89		}
90
91		target.dropdown();
92	// plus and minus signs - view cart, mini cart
93	} else if (target.is('div')) {
94		if (remaining <= 0 ) {
95			target.children('.quantity-increase').hide();
96		}
97	// atc link - quickview atc 
98	} else if (target.is('a')) {
99		if (remaining <= 0 ) {
100			target.hide();
101		} else {
102			target.show();
103		}
104	}
105		
106}
107
108function getCartQuantities() {
109  // Aggregate what's already in the cart by itemId and qty
110  var qtyMap = {};
111
112  if (cartdata) {
113    cartdata.cart.cartItems.forEach(function (cartItem) {
114      var itemId = cartItem.itemId;
115      if (typeof qtyMap[itemId] == 'undefined') {
116        qtyMap[itemId] = 1;
117      } else {
118        qtyMap[itemId] = qtyMap[itemId] + 1;
119      }
120    });
121  }
122
123  return qtyMap;
124}