From 0add0e7b64841ee3b02814a2d3da82e786dfd7a0 Mon Sep 17 00:00:00 2001
From: Eric Allam <eallam@icloud.com>
Date: Wed, 29 Apr 2026 14:14:00 +0100
Subject: [PATCH] feat(ai-chat reference): db:reset:chats helper for clean
 smoke-test slates
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The reference's Chat / ChatSession Postgres tables are shared between local and test cloud targets. A row created with one webapp's PAT and lastEventId is poison if you switch the .env to the other target and reuse the same chatId — the transport gets a 401 or resumes from a sequence that doesn't exist on the other backend.

Adds:
- prisma/reset-chats.sql: TRUNCATE Chat, ChatSession (User survives — it's upserted by onPreload/onChatStart anyway).
- package.json db:reset:chats script wrapping prisma db execute --file.

Run `pnpm run db:reset:chats` between target switches and at the top of every smoke test. Codified in the ai-chat-e2e skill as a required prereq.
---
 references/ai-chat/package.json           | 1 +
 references/ai-chat/prisma/reset-chats.sql | 7 +++++++
 2 files changed, 8 insertions(+)
 create mode 100644 references/ai-chat/prisma/reset-chats.sql

diff --git a/references/ai-chat/package.json b/references/ai-chat/package.json
index 737b71b0b..45071838a 100644
--- a/references/ai-chat/package.json
+++ b/references/ai-chat/package.json
@@ -10,6 +10,7 @@
     "db:migrate": "prisma migrate dev",
     "db:push": "prisma db push",
     "db:generate": "prisma generate",
+    "db:reset:chats": "prisma db execute --file prisma/reset-chats.sql",
     "test": "vitest"
   },
   "dependencies": {
diff --git a/references/ai-chat/prisma/reset-chats.sql b/references/ai-chat/prisma/reset-chats.sql
new file mode 100644
index 000000000..06363e733
--- /dev/null
+++ b/references/ai-chat/prisma/reset-chats.sql
@@ -0,0 +1,7 @@
+-- Wipe customer-side chat state for a fresh smoke-test slate.
+-- Run via `pnpm run db:reset:chats`.
+-- Leaves User rows intact (they're upserted by onPreload/onChatStart),
+-- but clears every Chat + ChatSession so a chatId from one target
+-- (test cloud / local) can't carry stale session/PAT/lastEventId state
+-- into the other.
+TRUNCATE "Chat", "ChatSession";