jacobh2
18c742c16a
A period shared between two parents was cut at its calendar midpoint and each half handed over regardless of whether that parent could pay for it. A window crossing New Year could therefore lose its entire first half to a parent whose budget for that year was spent, while the other parent's budget for the very same days went untouched. In the case that prompted this, eight days were reported as unfundable when none of them were. The cut now falls where the cost is even rather than where the calendar is, since weekends and red days are free and spread unevenly through a period. Whatever one parent still cannot cover is offered to the other before any of it is written off. Each parent keeps one unbroken stretch at home.
Backend — Föräldraledigplannerare
FastAPI + Python 3.14, packages managed with uv. Layered architecture
(entities → repositories → services → routers) with dependency injection so the
database backend (SQLite now, Postgres later) is swappable.
Setup
uv sync # install deps (incl. dev group)
uv run uvicorn app.main:app --reload # run dev server on :8000
uv run pytest # run tests with coverage
uv run ruff check . # lint
Layout
app/
config.py # pydantic-settings (app config + frozen LeaveRules)
dependencies.py # DI factories (pick repo impl by settings.database_type)
entities/ # plain dataclasses (domain)
models/ # pydantic API schemas
repositories/ # abstract interfaces
repositories_impl/ # concrete impls per backend (sqlite/, postgres/)
services/ # business logic
routers/ # FastAPI routes
db/connection.py # connection + (dev) schema bootstrap
utils/ # errors, logger
Demo data (manual/browser testing)
scripts/seed_demo.py seeds a realistic, ready-to-explore workspace through the
normal service/repository layers (no raw SQL) — a couple workspace with a
partner, a child born ~6 months ago, vacation rows for only some years (so the
is_assumed badge is visible), day overrides, and a spread of leave wishes
(fixed, flexible, and one deliberately underfunded to show a shortfall +
remedies + surplus advice). Login credentials are fixed and printed at the end.
uv run python scripts/seed_demo.py # create once; re-running is a no-op
uv run python scripts/seed_demo.py --reset # wipe the demo workspace and rebuild
Then open http://localhost:5173 and log in with the printed demo@example.com
credentials. Safe to re-run: without --reset it detects the existing demo
user and changes nothing; --reset only ever deletes the one demo workspace.
Reference vertical slice
VacationDays is implemented end-to-end (entity → schema → repo interface →
SQLite impl → service → router → tests). Copy this slice when adding a new
entity. See JUNIOR_ONBOARDING.md in the repo root for task-by-task guidance.
The inline schema in
db/connection.pyexists only so dev/tests are self-contained. Production schema is owned by Alembic migrations (a senior task).