From cef6ee58209cbbb06b11c20e11768bc65bb6088d Mon Sep 17 00:00:00 2001
From: Bram Verhulst <Brammieverhulst@gmail.com>
Date: Thu, 22 Oct 2026 00:58:08 +0200
Subject: [PATCH] feat: add tab view

---
 .../migration.sql                             | 42 +++++++++++++++++++
 1 file changed, 42 insertions(+)
 create mode 100644 apps/api/prisma/migrations/20261025120000_sold_unit_view/migration.sql

diff --git a/apps/api/prisma/migrations/20261025120000_sold_unit_view/migration.sql b/apps/api/prisma/migrations/20261025120000_sold_unit_view/migration.sql
new file mode 100644
index 0000000..35d12d2
--- /dev/null
+++ b/apps/api/prisma/migrations/20261025120000_sold_unit_view/migration.sql
@@ -0,0 +1,42 @@
+-- One row per drink sold: every unit that was not taken back, whether it is still on an open tab or already
+-- settled. Tab.lines and Settlement.lines hold the same unit shape ({ id, addedAt, removedAt }); a unit is in
+-- exactly one of them, so nothing is counted twice. Change this view whenever that JSON shape changes.
+CREATE VIEW "SoldUnit" AS
+SELECT
+    t."venueId",
+    u->>'id'                                AS "unitId",
+    t."id"                                  AS "tabId",
+    t."customerName",
+    l->>'productId'                         AS "productId",
+    l->>'productName'                       AS "productName",
+    (l->>'unitPriceInCents')::int           AS "unitPriceInCents",
+    (u->>'addedAt')::timestamptz            AS "addedAt",
+    -- A night runs until 06:00
+    date_trunc('day', (u->>'addedAt')::timestamptz - interval '6 hours', 'Europe/Brussels') AS "night",
+    NULL::text                              AS "settlementId",
+    NULL::timestamptz                       AS "settledAt",
+    NULL::text                              AS "paymentMethod"
+FROM "Tab" t,
+     jsonb_array_elements(t."lines") l,
+     jsonb_array_elements(l->'units') u
+WHERE u->>'removedAt' IS NULL
+
+UNION ALL
+
+SELECT
+    s."venueId",
+    u->>'id',
+    s."tabId",
+    s."customerName",
+    l->>'productId',
+    l->>'productName',
+    (l->>'unitPriceInCents')::int,
+    (u->>'addedAt')::timestamptz,
+    date_trunc('day', (u->>'addedAt')::timestamptz - interval '6 hours', 'Europe/Brussels'),
+    s."id",
+    s."settledAt" AT TIME ZONE 'UTC',
+    s."paymentMethod"
+FROM "Settlement" s,
+     jsonb_array_elements(s."lines") l,
+     jsonb_array_elements(l->'units') u
+WHERE u->>'removedAt' IS NULL;