From d0b680c27786af6c9c51d70120ec6dc5c413cde6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marc-Andr=C3=A9=20Bombeck?= <mbombeck@gmail.com>
Date: Mon, 5 Oct 2026 07:48:58 +0200
Subject: [PATCH] fix(dashboard): count the last hour of a 25-hour day in
 today's doses

buildMedsTodayBlock ended the day at local midnight plus 24 hours. On the
day the clocks go back that stops an hour early, so a dose between 23:00
and midnight was neither projected nor counted in the doses tally. The
exclusive end is now the next local day's start, as the digest loader
already computes it.
---
 .../dashboard/__tests__/meds-today.test.ts    | 28 +++++++++++++++++++
 src/lib/dashboard/meds-today.ts               |  9 +++---
 2 files changed, 33 insertions(+), 4 deletions(-)

diff --git a/src/lib/dashboard/__tests__/meds-today.test.ts b/src/lib/dashboard/__tests__/meds-today.test.ts
index 6beccb201..35f2864a0 100644
--- a/src/lib/dashboard/__tests__/meds-today.test.ts
+++ b/src/lib/dashboard/__tests__/meds-today.test.ts
@@ -181,6 +181,34 @@ describe("buildMedsTodayBlock — projection contract", () => {
   });
 });
 
+describe("buildMedsTodayBlock — the 25-hour day", () => {
+  it("covers the last local hour on the day the clocks go back", async () => {
+    // 2026-10-25 in Berlin runs 25 hours: CEST midnight is 22:00Z the
+    // evening before, the next CET midnight 23:00Z. A dose at 23:30 local
+    // (22:30Z) lies inside the day and must be counted.
+    const dstNow = new Date("2026-10-25T20:00:00.000Z");
+    await buildMedsTodayBlock(fakePrisma, "user-1", BERLIN, dstNow);
+
+    const arg = projectTodayIntakesAndRecompute.mock.calls[0][0] as {
+      todayStart: Date;
+      todayEnd: Date;
+    };
+    expect(arg.todayStart.toISOString()).toBe("2026-10-24T22:00:00.000Z");
+    expect(arg.todayEnd.toISOString()).toBe("2026-10-25T23:00:00.000Z");
+
+    const where = capturedTodayWhere as {
+      scheduledFor: { gte: Date; lt: Date };
+    };
+    expect(where.scheduledFor.lt.toISOString()).toBe(
+      "2026-10-25T23:00:00.000Z",
+    );
+    expect(
+      where.scheduledFor.lt.getTime() >
+        new Date("2026-10-25T22:30:00.000Z").getTime(),
+    ).toBe(true);
+  });
+});
+
 describe("buildMedsTodayBlock — tally", () => {
   it("counts scheduled / taken / skipped with the summary-tile semantics", async () => {
     todayRows = [
diff --git a/src/lib/dashboard/meds-today.ts b/src/lib/dashboard/meds-today.ts
index 7cefb726d..017008912 100644
--- a/src/lib/dashboard/meds-today.ts
+++ b/src/lib/dashboard/meds-today.ts
@@ -104,10 +104,11 @@ export async function buildMedsTodayBlock(
 ): Promise<MedsTodayBlock> {
   const { start: todayStart, end: todayEnd } = getUserTodayBounds(now, userTz);
   // The projector + tally read use an exclusive upper bound (`lt`),
-  // matching the summary route's window convention.
-  const todayEndExclusive = new Date(
-    todayStart.getTime() + 24 * 60 * 60 * 1000,
-  );
+  // matching the summary route's window convention. `todayEnd` is the
+  // inclusive last millisecond of the real local day, so +1 ms is the next
+  // day's start: 23 or 25 hours on a DST day, where a fixed 24 h missed the
+  // last hour of the 25-hour day.
+  const todayEndExclusive = new Date(todayEnd.getTime() + 1);
 
   // Projection FIRST so the tally read below sees the freshly minted
   // pending rows. Idempotent — `skipDuplicates` + the