From 3aa7f503e64e400d41814e16e0abfb3defb9e556 Mon Sep 17 00:00:00 2001
From: Florian Lentsch <office@florian-lentsch.at>
Date: Fri, 1 Mar 2024 13:37:20 +0100
Subject: [PATCH] Fixes #52

---
 app/assets/javascripts/group-order-form.js | 16 +++++++++-------
 app/helpers/group_orders_helper.rb         |  8 ++++----
 app/models/order_article.rb                | 10 +++++++---
 app/views/group_orders/_form.html.haml     |  2 +-
 4 files changed, 21 insertions(+), 15 deletions(-)

diff --git a/app/assets/javascripts/group-order-form.js b/app/assets/javascripts/group-order-form.js
index 378fb435..8e9c6dcd 100644
--- a/app/assets/javascripts/group-order-form.js
+++ b/app/assets/javascripts/group-order-form.js
@@ -181,17 +181,19 @@ class GroupOrderForm {
     totalPrice$.data('price', round(totalPrice));
 
     missing$.text(round(missing));
-    if (packSize > 1 || minimumOrderQuantity > 1) {
-      this.setRowStyle(row$, missing, granularity);
+    if (tolerance$.length === 1) {
+      this.setRowStyle(row$, missing, granularity, quantity);
     }
   }
 
-  setRowStyle(row$, missing, packSize) {
+  setRowStyle(row$, missing, granularity, quantity) {
     row$.removeClass('missing-many missing-few missing-none');
     if (missing === 0) {
-      row$.addClass('missing-none');
+      if (quantity !== 0) {
+        row$.addClass('missing-none');
+      }
     } else {
-      row$.addClass(missing <= packSize ? 'missing-few' : 'missing-many');
+      row$.addClass(missing <= granularity ? 'missing-few' : 'missing-many');
     }
   }
 
@@ -206,8 +208,8 @@ class GroupOrderForm {
   }
 
   calcMissingItems(packSize, quantity, tolerance, minimumOrderQuantity) {
-    if (Big(quantity).add(tolerance).toNumber() < minimumOrderQuantity) {
-      return Big(minimumOrderQuantity).sub(quantity).sub(tolerance);
+    if (quantity !== 0 && Big(quantity).add(tolerance).toNumber() < minimumOrderQuantity) {
+      return Big(minimumOrderQuantity).sub(quantity).sub(tolerance).toNumber();
     }
 
     if (isNaN(quantity)) {
diff --git a/app/helpers/group_orders_helper.rb b/app/helpers/group_orders_helper.rb
index 2b2e9d6a..7d416b6e 100644
--- a/app/helpers/group_orders_helper.rb
+++ b/app/helpers/group_orders_helper.rb
@@ -51,11 +51,11 @@ def requires_tolerance_input?(order_article, ordering_data)
     ) || (order_article.article_version.minimum_order_quantity.presence || 0) > order_article.article_version.group_order_granularity
   end
 
-  def get_missing_units_css_class(quantity_missing)
-    if (quantity_missing == 1)
-      return 'missing-few';
-    elsif (quantity_missing == 0)
+  def get_missing_units_css_class(quantity_missing, article_version)
+    if (quantity_missing == 0)
       return ''
+    elsif (quantity_missing <= article_version.group_order_granularity)
+      return 'missing-few';
     else
       return 'missing-many'
     end
diff --git a/app/models/order_article.rb b/app/models/order_article.rb
index 936d9bb2..c96a71cd 100644
--- a/app/models/order_article.rb
+++ b/app/models/order_article.rb
@@ -180,12 +180,12 @@ def update_global_price=(value)
   # @return [Number] Units missing for the last +unit_quantity+ of the article.
   def missing_units
     unit_ratio = price.convert_quantity(1, price.supplier_order_unit, price.group_order_unit)
-    _missing_units(unit_ratio, quantity, tolerance)
+    _missing_units(unit_ratio, quantity, tolerance, price.minimum_order_quantity)
   end
 
   def missing_units_was
     unit_ratio = price.convert_quantity(1, price.supplier_order_unit, price.group_order_unit)
-    _missing_units(unit_ratio, quantity_was, tolerance_was)
+    _missing_units(unit_ratio, quantity_was, tolerance_was, price.minimum_order_quantity)
   end
 
   # Check if the result of any associated GroupOrderArticle was overridden manually
@@ -264,7 +264,11 @@ def enforce_boxfill
     end
   end
 
-  def _missing_units(unit_ratio, quantity, tolerance)
+  def _missing_units(unit_ratio, quantity, tolerance, minimum_order_quantity)
+    if !minimum_order_quantity.nil? && quantity > 0 && quantity + tolerance < minimum_order_quantity
+      return minimum_order_quantity - quantity - tolerance
+    end
+
     return 0 if article_version.supplier_order_unit_is_si_convertible
 
     units = unit_ratio - ((quantity % unit_ratio) + tolerance)
diff --git a/app/views/group_orders/_form.html.haml b/app/views/group_orders/_form.html.haml
index 7ca9d153..d937a8f6 100644
--- a/app/views/group_orders/_form.html.haml
+++ b/app/views/group_orders/_form.html.haml
@@ -96,7 +96,7 @@
             %i.icon-tag
           %td{colspan: "9"}
         - order_articles.each do |order_article|
-          %tr{class: "#{cycle('even', 'odd', name: 'articles')} order-article #{get_missing_units_css_class(@ordering_data[:order_articles][order_article.id][:missing_units])}", valign: "top"}
+          %tr{class: "#{cycle('even', 'odd', name: 'articles')} order-article #{get_missing_units_css_class(@ordering_data[:order_articles][order_article.id][:missing_units], order_article.article_version)}", valign: "top"}
             %td.name= order_article.article_version.name
             - if @order.stockit?
               %td= truncate order_article.article_version.article.supplier.name, length: 15