# volundr

A small, secure, single-user web app for logging bike service and repair
"events" (type, date, mileage, cost, notes) and getting a clear **service-due**
hint per bike, plus **MOT / insurance renewal** tracking.

Built with FastAPI + SQLite + Jinja2 + HTMX. No build step. Server-rendered pages.

## Features

- Log events for a bike: type (service, fuel, tyre, chain, brake, repair, mot,
  insurance, other), date, optional mileage + cost, free-text notes.
- Per-bike **service status** derived from your newest mileage and the most recent
  *service* event: `ok` (still under the interval), `due-soon` (within the lead
  time — book it soon), or `overdue` (past it — book a service now).
- **MOT / insurance renewals**: the most recent `mot` / `insurance` event is
  tracked and flagged `ok` / `due-soon` / `overdue` by date (default: valid for 12
  months, "due soon" within the final 60).
- Set a **service interval** in miles per bike (e.g. 5000).
- Dashboard "action needed" strip surfaces any overdue bike.
- Cost and event totals, newest-first history.
- **Secure login** (Argon2id hashing, server-side session, CSRF, login
  throttling, hardened security headers, strict CSP). Designed to run behind a
  reverse proxy on the open web.

## Quick start

```bash
# 1. Install dependencies
uv sync --all-extras

# 2. Configure credentials (required)
export BIKE_ADMIN_USERNAME=admin
export BIKE_ADMIN_PASSWORD=<change-me>
export BIKE_ADMIN_SECRET_KEY=$(python -c "import secrets;print(secrets.token_urlsafe(32))")

# 3. Run
uv run uvicorn app.main:app --host 127.0.0.1 --port 8000
# open http://127.0.0.1:8000
```

Or copy `.env.example` to `.env` and fill in the values (env vars and the local
`.env` file are both read automatically).

## Running behind a reverse proxy (production)

TLS terminated at the proxy (Caddy/nginx), app on a private host behind it.
`deploy/bike_admin.service` is the systemd unit used in production;
`deploy/env.production.example` is the production `.env` template.

- Set `BIKE_ADMIN_IS_PRODUCTION=true` so the session cookie is `Secure`.
- Bind as needed for the proxy to reach you:
  - proxy on the **same** host → `--host 127.0.0.1`
  - proxy on **another** host (e.g. a single fronting Caddy) → `--host 0.0.0.0`
  or bind to a specific LAN interface; never the public interface directly, since
  there is no app-level TLS.
- Proxy forwards to the app and sets `X-Forwarded-For` / `X-Forwarded-Proto`;
  the app trusts these by default (`BIKE_ADMIN_TRUST_PROXY`). uvicorn's
  `--forwarded-allow-ips 192.168.0.0/16 --proxy-headers` accepts them
  (adjust to your LAN range).

### systemd (production recipe)

```bash
# one-time: deps + service account   [on Arch: uv ships as python-uv]
sudo pacman -S --needed git python-uv
sudo useradd --system bike

# one-time: app
sudo chown -R bike:bike /opt/bike_admin
sudo -u bike uv sync --all-extras --project /opt/bike_admin
sudo install -d -o bike -g bike /opt/bike_admin/data   # systemd needs it to exist

# one-time: .env (see deploy/env.production.example)
sudo chown bike:bike /opt/bike_admin/.env
sudo chmod 640 /opt/bike_admin/.env                     # owner rw, group r, others none

sudo cp deploy/bike_admin.service /etc/systemd/system/bike-admin.service
sudo systemctl daemon-reload
sudo systemctl enable --now bike-admin
```

Caddy block for the fronting proxy:

```
volundr.local.jakes-asgard.uk {
    reverse_proxy 192.168.0.52:8000
}
```

Back up your data by copying the single file in the data dir —
`<data_dir>/bike_admin.db` (SQLite, WAL; `data/bike_admin.db` by default).

## Tests / lint

```bash
uv run pytest -q
uv run ruff check app tests
uv run ruff format --check app tests
```