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Marc-André Bombeck
1aa405cb44
On the rollup path the all-time count, min, max and mean are composed from DAY buckets plus one raw aggregate of the readings older than the fold window. The bucket half read every DAY bucket the account had, the raw half every reading before now minus five years, so a reading on any day that had a bucket before that instant was counted in both. Such buckets are common: the per-write hook folds whatever day it touches, the Apple Health import folded whole spans until this release clamped it, every fold snaps its start down to a whole day, and nothing removes a bucket once the moving window has passed it. The count came out too high and the mean leaned towards the doubled days, while the live fallback reported the true figures for the same account. Both halves now meet at the start of the window's first UTC day: buckets from there on, raw readings before it. A reading lands in exactly one half whichever buckets exist, so buckets already written before the window need no repair.
src/
Application source. HealthLog is a Next.js 16 App Router project (output: "standalone", React 19, TypeScript strict). The path alias @/* resolves to this directory. Everything a request touches lives under here; the layout below follows the request flow rather than alphabetical order.
Request flow
client → src/proxy.ts → src/app/<route>/route.ts → src/lib/api-handler.ts → handler body → src/lib/api-response.ts → client
proxy.ts— the HTTP edge (Next.js 16's renamedmiddleware). Public-path allowlist, demo-mode mutation block, server-side onboarding redirect, worker-only refusal,x-request-id+ CSP nonce generation, every security header.app/— App Router pages (RSC by default) and API routes. Every API route wraps its handler inapiHandler. Seeapp/README.md.lib/— the server/runtime toolkit:apiHandler, auth, crypto, rollups, AI, notifications, pg-boss jobs, integrations, rate limiting. Seelib/README.md.components/— React components (shadcn/ui new-york, kebab-case files). Seecomponents/README.md.
Other directories
hooks/— shared React hooks (use-prefix, kebab-case).types/— shared TypeScript declarations.generated/prisma/— the generated Prisma client (do not edit; regenerated byprisma generate). Imported as@/generated/prisma.instrumentation.ts— Next.js startup hook; boots the pg-boss worker registry and boot-time backfill queues.__tests__/— cross-cutting unit tests; most tests live in__tests__/folders next to the code they cover.
Conventions
See ../CLAUDE.md for the full set. The load-bearing ones: RSC by default ("use client" only when a hook/state/browser API needs it); every API route wraps apiHandler and parses its body with Zod safeParse; userId is always narrowed from session or Bearer, never accepted as a body field; TanStack Query keys come only from src/lib/query-keys/; outbound HTTP goes through src/lib/safe-fetch.ts.