From be2da9c6e45c675a70fc152931fd1acf05bfbec4 Mon Sep 17 00:00:00 2001
From: ixgadmin <admin@ixg.local>
Date: Thu, 17 Sep 2026 14:48:23 +0000
Subject: [PATCH] Show the intake lineage and edit controls on the batch detail
 page

---
 templates/ops/batch_detail.html | 73 ++++++++++++++++++++++++++++++++-
 1 file changed, 72 insertions(+), 1 deletion(-)

diff --git a/templates/ops/batch_detail.html b/templates/ops/batch_detail.html
index de123e8..40c3529 100644
--- a/templates/ops/batch_detail.html
+++ b/templates/ops/batch_detail.html
@@ -4,7 +4,11 @@
 
 <div class="page-header d-flex justify-content-between align-items-center">
   <h2>Batch: {{ batch.batch_reference }}</h2>
-  <a href="{% url 'ops:batch_list' %}" class="btn btn-sm btn-outline-secondary"><i class="bi bi-arrow-left"></i> Back</a>
+  <div>
+    <a href="{% url 'ops:batch_lineage' batch.pk %}" class="btn btn-sm btn-primary"><i class="bi bi-basket"></i> Edit intake lineage</a>
+    <a href="{% url 'ops:batch_update' batch.pk %}" class="btn btn-sm btn-outline-primary"><i class="bi bi-pencil"></i> Edit batch</a>
+    <a href="{% url 'ops:batch_list' %}" class="btn btn-sm btn-outline-secondary"><i class="bi bi-arrow-left"></i> Back</a>
+  </div>
 </div>
 
 <div class="row g-3 mb-4">
@@ -29,6 +33,73 @@
   </div>
 </div>
 
+<div class="row g-3 mb-4">
+  <div class="col-12">
+    <div class="stat-card">
+      <div class="d-flex justify-content-between align-items-center mb-3">
+        <h6 class="mb-0">Intake Lineage ({{ lineage|length }})</h6>
+        <a href="{% url 'ops:batch_lineage' batch.pk %}" class="btn btn-sm btn-outline-primary"><i class="bi bi-basket"></i> Edit lineage</a>
+      </div>
+      {% if lineage %}
+      <table class="table table-sm mb-0">
+        <thead>
+          <tr>
+            <th>Intake</th>
+            <th>Date</th>
+            <th>Received (kg)</th>
+            <th>Allocated (kg)</th>
+            <th>Origin Zone</th>
+            <th>Collector Group</th>
+          </tr>
+        </thead>
+        <tbody>
+          {% for row in lineage %}
+          <tr>
+            <td><strong>{{ row.harvest_intake.intake_reference }}</strong></td>
+            <td>{{ row.harvest_intake.intake_date|date:'d/m/Y'|default:'-' }}</td>
+            <td>{{ row.harvest_intake.weight_kg|default:'-' }}</td>
+            <td>{{ row.weight_allocated_kg|default:'-' }}</td>
+            <td>
+              {% if row.harvest_intake.origin_zone %}
+                {{ row.harvest_intake.origin_zone.zone_code }}
+                {% if row.harvest_intake.origin_zone.verification_status != 'verified' %}
+                  <span class="badge bg-warning text-dark">{{ row.harvest_intake.origin_zone.get_verification_status_display }}</span>
+                {% endif %}
+              {% else %}-{% endif %}
+            </td>
+            <td>{{ row.harvest_intake.collector_group.name|default:'-' }}</td>
+          </tr>
+          {% endfor %}
+          <tr class="table-light">
+            <td colspan="3" class="text-end text-secondary">Total allocated</td>
+            <td><strong>{{ lineage_allocated }}</strong></td>
+            <td colspan="2" class="text-secondary">batch weight {{ batch.weight_kg|default:'-' }} kg</td>
+          </tr>
+        </tbody>
+      </table>
+      {% if lineage_difference > 0 %}
+      <p class="small text-secondary mt-2 mb-0">
+        {{ lineage_difference }} kg of this batch is not traced back to a harvest intake.
+        The platform shows the two figures side by side; it does not reconcile them.
+      </p>
+      {% elif lineage_difference < 0 %}
+      <p class="small text-secondary mt-2 mb-0">
+        The allocated weights are above the batch weight &mdash; the usual direction,
+        since processing loses weight. The platform shows the two figures side by
+        side; it does not reconcile them.
+      </p>
+      {% endif %}
+      {% else %}
+      <p class="text-muted mb-0">
+        No harvest intakes are linked to this batch. Until at least one is, this
+        batch cannot be traced back to a collector group and an origin zone, and
+        the due-diligence case for it will fail its lineage check.
+      </p>
+      {% endif %}
+    </div>
+  </div>
+</div>
+
 <div class="row g-3 mb-4">
   <div class="col-md-6">
     <div class="stat-card">