From a54760b21964701b61076392e6085dea976c1227 Mon Sep 17 00:00:00 2001
From: Oliver Walters <oliver.henry.walters@gmail.com>
Date: Sat, 18 May 2019 23:44:43 +1000
Subject: [PATCH] Improve pricing display

---
 .../part/templates/part/part_pricing.html     | 60 +++++++++++++++----
 InvenTree/part/views.py                       | 30 ++++++++--
 2 files changed, 74 insertions(+), 16 deletions(-)

diff --git a/InvenTree/part/templates/part/part_pricing.html b/InvenTree/part/templates/part/part_pricing.html
index bfff341049..6d82549bb2 100644
--- a/InvenTree/part/templates/part/part_pricing.html
+++ b/InvenTree/part/templates/part/part_pricing.html
@@ -6,37 +6,77 @@
 Calculate pricing information for {{ part }}.
 </div>
 
+<h4>Quantity</h4>
 <table class='table table-striped table-condensed'>
     <tr>
         <td><b>Part</b></td>
-        <td>{{ part  }}</td>
+        <td colspan='2'>{{ part  }}</td>
     </tr>
     <tr>
         <td><b>Quantity</b></td>
-        <td>{{ quantity }}</td>
+        <td colspan='2'>{{ quantity }}</td>
     </tr>
-    {% if buy_price %}
+</table>
+    {% if part.supplier_count > 0 %}
+    <h4>Supplier Pricing</h4>
+<table class='table table-striped table-condensed'>
+    {% if min_total_buy_price %}
     <tr>
-        <td><b>Buy Cost</b></td>
-        <td>{{ buy_price }}</td>
+        <td><b>Unit Cost</b></td>
+        <td>Min: {{ min_unit_buy_price }}</td>
+        <td>Max: {{ max_unit_buy_price }}</td>
+    </tr>
+    {% if quantity > 1 %}
+    <tr>
+        <td><b>Total Cost</b></td>
+        <td>Min: {{ min_total_buy_price }}</td>
+        <td>Max: {{ max_total_buy_price }}</td>
     </tr>
     {% endif %}
-    {% if bom_price %}
+    {% else %}
     <tr>
-        <td><b>BOM Cost</b></td>
-        <td>{{ bom_price }}</td>
+        <td colspan='3'>
+            <span class='warning-msg'><i>No supplier pricing available</i></span>
+        </td>
     </tr>
+    {% endif %}
+</table>
+    {% endif %}
+
+    {% if part.bom_count > 0 %}
+    <h4>BOM Pricing</h4>
+<table class='table table-striped table-condensed'>
+    {% if min_total_bom_price %}
+    <tr>
+        <td><b>Unit Cost</b></td>
+        <td>Min: {{ min_unit_bom_price }}</td>
+        <td>Max: {{ max_unit_bom_price }}</td>
+    </tr>
+    {% if quantity > 1 %}
+    <tr>
+        <td><b>Total Cost</b></td>
+        <td>Min: {{ min_total_bom_price }}</td>
+        <td>Max: {{ max_total_bom_price }}</td>
+    </tr>
+    {% endif %}
     {% if part.has_complete_bom_pricing == False %}
     <tr>
-        <td colspan='2'>
+        <td colspan='3'>
             <span class='warning-msg'><i>Note: BOM pricing is incomplete for this part</i></span>
         </td>
     </tr>
     {% endif %}
+    {% else %}
+    <tr>
+        <td colspan='3'>
+            <span class='warning-msg'><i>No BOM pricing available</i></span>
+        </td>
+    </tr>
     {% endif %}
 </table>
+    {% endif %}
 
-{% if buy_price or bom_price %}
+{% if min_unit_buy_price or min_unit_bom_price %}
 {% else %}
 <div class='alert alert-danger alert-block'>
     No pricing information is available for this part.
diff --git a/InvenTree/part/views.py b/InvenTree/part/views.py
index 7a7a85ae2d..d5824b2dab 100644
--- a/InvenTree/part/views.py
+++ b/InvenTree/part/views.py
@@ -577,14 +577,32 @@ class PartPricing(AjaxView):
         if part is None:
             return ctx
 
-        buy_price = part.get_price_info(quantity, bom=False)
-        bom_price = part.get_price_info(quantity, buy=False)
+        # Supplier pricing information
+        if part.supplier_count > 0:
+            min_buy_price = part.get_min_supplier_price(quantity)
+            max_buy_price = part.get_max_supplier_price(quantity)
 
-        if buy_price:
-            ctx['buy_price'] = buy_price
+            if min_buy_price:
+                ctx['min_total_buy_price'] = min_buy_price
+                ctx['min_unit_buy_price'] = min_buy_price / quantity
 
-        if bom_price:
-            ctx['bom_price'] = bom_price
+            if max_buy_price:
+                ctx['max_total_buy_price'] = max_buy_price
+                ctx['max_unit_buy_price'] = max_buy_price / quantity
+
+        # BOM pricing information
+        if part.bom_count > 0:
+
+            min_bom_price = part.get_min_bom_price(quantity)
+            max_bom_price = part.get_max_bom_price(quantity)
+
+            if min_bom_price:
+                ctx['min_total_bom_price'] = min_bom_price
+                ctx['min_unit_bom_price'] = min_bom_price / quantity
+            
+            if max_bom_price:
+                ctx['max_total_bom_price'] = max_bom_price
+                ctx['max_unit_bom_price'] = max_bom_price / quantity
 
         return ctx