From 7870e0152b34ce5293214cd24c2b0ab2213ac2f1 Mon Sep 17 00:00:00 2001
From: Scrum4Me Agent <30029041+madhura68@users.noreply.github.com>
Date: Wed, 6 May 2026 10:57:53 +0200
Subject: [PATCH] =?UTF-8?q?feat(db):=20migratie=20todos=E2=86=92ideas,=20c?=
 =?UTF-8?q?ounters=20bijwerken,=20todos=20dropt=20[cmotto5fh000jx317r7c5sr?=
 =?UTF-8?q?vb]?=
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Nieuwe Prisma-migratie die in één transactie actieve todos omzet naar
DRAFT-ideas met unieke IDEA-NNN codes, idea_code_counter per user
bijwerkt, en de todos-tabel dropt.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
---
 .../migration.sql                             | 59 +++++++++++++++++++
 1 file changed, 59 insertions(+)
 create mode 100644 prisma/migrations/20260507000000_migrate_todos_to_ideas/migration.sql

diff --git a/prisma/migrations/20260507000000_migrate_todos_to_ideas/migration.sql b/prisma/migrations/20260507000000_migrate_todos_to_ideas/migration.sql
new file mode 100644
index 0000000..4d740ae
--- /dev/null
+++ b/prisma/migrations/20260507000000_migrate_todos_to_ideas/migration.sql
@@ -0,0 +1,59 @@
+BEGIN;
+
+WITH active_todos AS (
+  SELECT t.id, t.user_id, t.product_id, t.title, t.description, t.created_at
+  FROM todos t
+  WHERE t.done = false
+    AND t.archived = false
+    AND NOT EXISTS (
+      SELECT 1 FROM ideas i
+      WHERE i.user_id = t.user_id
+        AND lower(trim(i.title)) = lower(trim(t.title))
+    )
+),
+user_base AS (
+  SELECT ut.user_id, u.idea_code_counter AS base_counter
+  FROM (SELECT DISTINCT user_id FROM active_todos) ut
+  JOIN users u ON u.id = ut.user_id
+),
+ranked AS (
+  SELECT
+    at.user_id, at.product_id, at.title, at.description, at.created_at,
+    ub.base_counter,
+    ROW_NUMBER() OVER (PARTITION BY at.user_id ORDER BY at.created_at, at.id) AS rn
+  FROM active_todos at
+  JOIN user_base ub ON ub.user_id = at.user_id
+),
+inserted AS (
+  INSERT INTO ideas (
+    id, user_id, product_id, code, title, description,
+    status, archived, created_at, updated_at
+  )
+  SELECT
+    gen_random_uuid()::text,
+    user_id,
+    product_id,
+    'IDEA-' || lpad((base_counter + rn)::text, 3, '0'),
+    title,
+    description,
+    'DRAFT',
+    false,
+    created_at,
+    now()
+  FROM ranked
+  RETURNING user_id,
+    (regexp_replace(code, '^IDEA-0*', ''))::int AS used_counter
+)
+UPDATE users u
+SET idea_code_counter = sub.max_counter
+FROM (
+  SELECT user_id, MAX(used_counter) AS max_counter
+  FROM inserted
+  GROUP BY user_id
+) sub
+WHERE u.id = sub.user_id
+  AND sub.max_counter > u.idea_code_counter;
+
+DROP TABLE todos;
+
+COMMIT;