chore(dashboard): retire the GLP-1 tile

Drop the standalone GLP-1 dashboard tile and its data-fetch route.
The /api/dashboard/glp1 endpoint has no consumer outside the retired
tile (no native client reads it), so the route, the tile component,
its test, the e2e spec, the locale keys, the query-key entry and the
drift-guard assertion all retire together.

The medication detail page and its bidirectional contracts stay
untouched. An opt-in dashboard widget that surfaces the same level
chart will land later in this cycle, anchored on the existing
dashboard-layout toggle list.
This commit is contained in:
Marc-André Bombeck committed 2026-05-16 01:00:09 +02:00
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/**
* GET /api/dashboard/glp1 — v1.4.25 W6
*
* Powers the dashboard's `<Glp1Tile>`. Returns the user's active GLP-1
* medications (treatmentClass = "GLP1"), each enriched with a tiny
* weight series + the dates the user logged an injection. Returns
* `null` data when the user has no active GLP-1 medication — the tile
* then suppresses itself per Marc's empty-state hide rule.
*
* Bridge layer: the heavy lifting (current dose / last + next injection
* / titration history / inventory math) is delegated to
* `buildGlp1SnapshotBlock` so the Coach's GLP-1-aware reply path and
* this dashboard tile read from the exact same shape. The extras we
* add on top here are purely UI-facing:
* - weightSeries[] — daily aggregates since the first dose change
* (or 90 days back, whichever is later) for
* the mini-chart on the tile
* - weightDeltaKg — convenience caption value (current − start);
* the tile renders "−4.2 kg seit Beginn" off
* this number, with `null` when either side
* is missing
* - injectionDates[] — `YYYY-MM-DD` keys for every recorded intake
* event so the chart can paint the vertical
* injection-day markers Marc wants
*/
import { apiHandler, requireAuth } from "@/lib/api-handler";
import { apiSuccess } from "@/lib/api-response";
import { annotate } from "@/lib/logging/context";
import { prisma } from "@/lib/db";
import { buildGlp1SnapshotBlock } from "@/lib/ai/coach/glp1-snapshot";
import { DEFAULT_TIMEZONE } from "@/lib/tz/resolver";
const WEIGHT_LOOKBACK_DAYS = 90;
const MS_PER_DAY = 24 * 60 * 60 * 1000;
function isoDate(d: Date): string {
return d.toISOString().slice(0, 10);
}
/**
* Bucket raw weight measurements into one daily average so the mini-
* chart doesn't render the noisy raw stream. Same `YYYY-MM-DD` keying
* the dashboard chart layer uses (UTC-noon anchor — DST-safe).
*/
function bucketDaily(
rows: Array<{ measuredAt: Date; value: number }>,
): Array<{ date: string; weight: number }> {
const sums = new Map<string, { sum: number; count: number }>();
for (const row of rows) {
const key = isoDate(row.measuredAt);
const slot = sums.get(key) ?? { sum: 0, count: 0 };
slot.sum += row.value;
slot.count += 1;
sums.set(key, slot);
}
return Array.from(sums.entries())
.map(([date, { sum, count }]) => ({
date,
weight: Math.round((sum / count) * 100) / 100,
}))
.sort((a, b) => (a.date < b.date ? -1 : 1));
}
export const GET = apiHandler(async () => {
const { user } = await requireAuth();
const userTz = user.timezone ?? DEFAULT_TIMEZONE;
const now = new Date();
const snapshot = await buildGlp1SnapshotBlock(user.id, now);
// No active GLP-1 medication → the tile suppresses itself. We still
// return 200 + `data: null` so the client doesn't have to special-
// case the 404 path.
if (!snapshot) {
annotate({
action: { name: "dashboard.glp1" },
meta: { active: 0 },
});
return apiSuccess(null);
}
// Anchor the weight series to the earliest meaningful date: the user
// wants to see the trend SINCE THEY STARTED the GLP-1, not just the
// last 90 days. We pick the earlier of:
// - the first dose-change `effectiveFrom` across all GLP-1 meds
// - 90 days back from today (so brand-new accounts still get a
// reasonable window when they only just logged their first dose)
let anchor = new Date(now.getTime() - WEIGHT_LOOKBACK_DAYS * MS_PER_DAY);
for (const med of snapshot.medications) {
if (med.doseHistory.length === 0) continue;
const firstDose = med.doseHistory[0].effectiveFrom;
const firstDoseMs = Date.parse(`${firstDose}T00:00:00Z`);
if (Number.isFinite(firstDoseMs) && firstDoseMs < anchor.getTime()) {
anchor = new Date(firstDoseMs);
}
}
const [weights, intakeRows] = await Promise.all([
prisma.measurement.findMany({
where: {
userId: user.id,
type: "WEIGHT",
measuredAt: { gte: anchor },
},
orderBy: { measuredAt: "asc" },
select: { measuredAt: true, value: true },
}),
prisma.medicationIntakeEvent.findMany({
where: {
userId: user.id,
takenAt: { not: null, gte: anchor },
medication: { treatmentClass: "GLP1" },
},
orderBy: { takenAt: "asc" },
select: {
medicationId: true,
takenAt: true,
medication: { select: { name: true } },
},
}),
]);
const weightSeries = bucketDaily(weights);
// Per-med injection date set — used by the chart's vertical markers.
// Multiple injection events on the same day collapse to a single
// marker so the chart doesn't paint stacked overlapping lines.
const injectionDatesByMed = new Map<string, Set<string>>();
for (const ev of intakeRows) {
if (!ev.takenAt) continue;
const set = injectionDatesByMed.get(ev.medicationId) ?? new Set<string>();
set.add(isoDate(ev.takenAt));
injectionDatesByMed.set(ev.medicationId, set);
}
// We also need to know the medication id per snapshot entry. The
// snapshot exposes name + genericName but not the id; re-fetch the
// id list ordered by `createdAt: desc` (matches the snapshot
// ordering) and zip the two lists. Cheap re-query — already in cache
// from the snapshot's first hit.
const idsForOrder = await prisma.medication.findMany({
where: { userId: user.id, treatmentClass: "GLP1", active: true },
orderBy: { createdAt: "desc" },
select: { id: true, name: true },
});
// Build the enriched per-med payload. `startWeight` = the first daily
// bucket on/after the med's first dose-change date; `currentWeight`
// = the most recent daily bucket. Both `null` when no weight data
// exists in the window — the tile suppresses the delta caption then.
const medications = snapshot.medications.map((med, idx) => {
const medId = idsForOrder[idx]?.id ?? null;
let startWeight: number | null = null;
let currentWeight: number | null = null;
let medSeries: Array<{ date: string; weight: number }> = [];
if (weightSeries.length > 0) {
const firstDoseDate =
med.doseHistory.length > 0 ? med.doseHistory[0].effectiveFrom : null;
// Filter the series to "since the user started this medication".
// If we don't have a dose-change row (legacy data) we fall back
// to the whole 90-day window so the chart isn't empty.
medSeries = firstDoseDate
? weightSeries.filter((p) => p.date >= firstDoseDate)
: weightSeries.slice();
startWeight = medSeries[0]?.weight ?? null;
currentWeight = medSeries[medSeries.length - 1]?.weight ?? null;
}
const weightDeltaKg =
startWeight !== null && currentWeight !== null
? Math.round((currentWeight - startWeight) * 100) / 100
: null;
const injectionDates = medId
? Array.from(injectionDatesByMed.get(medId) ?? []).sort()
: [];
return {
...med,
medicationId: medId,
startWeight,
currentWeight,
weightDeltaKg,
weightSeries: medSeries,
injectionDates,
};
});
annotate({
action: { name: "dashboard.glp1" },
meta: {
active: medications.length,
tz: userTz,
},
});
return apiSuccess({
active: snapshot.active,
medications,
});
});