From b62b92fe1a655924b02768daf4a082c3df167ccf Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?St=C3=A9phane=20Tailland?= <stephane@sttlab.eu>
Date: Mon, 31 Aug 2026 16:17:05 +0200
Subject: [PATCH] Add the procurement topic and Supply's write access to it
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reorder.requested and its answer (confirmed/rejected) share the topic, keyed
by the reorder id, so ordering between the ask and the answer holds the way it
does for a product's own facts on classic-models.catalog.

Supply both writes and reads this topic — one service, two capacities, not a
separate procurement identity, per the 2026-08-31 decision.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
---
 kafka-topology/classic-models.yaml | 35 ++++++++++++++++++++++++++++--
 1 file changed, 33 insertions(+), 2 deletions(-)

diff --git a/kafka-topology/classic-models.yaml b/kafka-topology/classic-models.yaml
index 3d4beac..db494f6 100644
--- a/kafka-topology/classic-models.yaml
+++ b/kafka-topology/classic-models.yaml
@@ -63,6 +63,25 @@ spec:
     retention.ms: "604800000"
     cleanup.policy: delete
     min.insync.replicas: "1"
+---
+# A supply request and its own answer, on one topic: reorder.requested and its
+# eventual reorder.confirmed/reorder.rejected share a subject — the reorder id
+# — so ordering between "asked" and "answered" holds the way it does for a
+# product's own facts on classic-models.catalog.
+apiVersion: kafka.strimzi.io/v1
+kind: KafkaTopic
+metadata:
+  name: classic-models.procurement
+  namespace: kafka
+  labels:
+    strimzi.io/cluster: kafka
+spec:
+  partitions: 3
+  replicas: 1
+  config:
+    retention.ms: "604800000"
+    cleanup.policy: delete
+    min.insync.replicas: "1"
 
 # --- accounts ---------------------------------------------------------------
 #
@@ -92,8 +111,12 @@ spec:
           - Write
           - Describe
 ---
-# The supply agent. Reads the catalog topic only — an agent whose job is stock
-# has no business reading who paid what.
+# The supply agent. Reads the catalog topic — its job is stock, it has no
+# business reading who paid what. It also both writes AND reads its own
+# procurement topic: it raises a reorder request and answers its own request
+# a moment later (this is one service acting in two capacities, not two
+# services, per the 2026-08-31 decision that réapprovisionnement stays one
+# service rather than splitting into a separate procurement identity).
 apiVersion: kafka.strimzi.io/v1
 kind: KafkaUser
 metadata:
@@ -114,6 +137,14 @@ spec:
         operations:
           - Read
           - Describe
+      - resource:
+          type: topic
+          name: classic-models.procurement
+          patternType: literal
+        operations:
+          - Read
+          - Write
+          - Describe
       - resource:
           type: group
           name: supply-