67 lines
2.6 KiB
Markdown
67 lines
2.6 KiB
Markdown
# Dyżur-bot
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A telegram bot for managing the cleaning rota in hackerspace.
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Bot offers weekly reminders about cleaning duties as well as on demand informations.
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Backend read the schedule from a Google sheet, store it in local JSON file.
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## Running
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Requires `GOOGLE_CREDENTIALS_FILE` (path to a Google service-account key,
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shared as an editor on the sheet), `GOOGLE_SHEETS_ID`, and `BOT_TOKEN` in the
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environment or a `.env` file (see `service.go`/`sheet.go` for optional
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`SHEET_RANGE`, `ROTA_CACHE_PATH`, `SYNC_INTERVAL`). Then:
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```sh
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go run ./cmd/dyzur-bot
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```
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The service loads the cached rota, syncs from Google Sheets in the background on
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`SYNC_INTERVAL` (default 30m), and runs the Telegram bot via long polling until
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interrupted (Ctrl-C / SIGTERM).
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When `SHEET_RANGE` is unset, the bot reads the current year's tab (e.g.
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`2026!A1:G100`), resolved on every sync — so it follows the New Year rollover
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automatically without a restart. A sync that fails, or that returns no duty
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weeks (e.g. a next-year tab that exists but hasn't been filled in yet), keeps
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the last-good cache instead of clearing it; if no sync succeeds for 6h the bot
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logs a loud stale-cache error.
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> **Run exactly one instance per bot token.** The bot uses long polling
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> (`getUpdates`); two concurrent pollers on the same token make Telegram return
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> HTTP 409 Conflict and updates get dropped. Do not scale this to multiple
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> replicas.
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### Docker
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```sh
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docker build -t dyzur-bot .
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docker run --rm --env-file .env -v dyzur-data:/data dyzur-bot
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```
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The image is a static binary on `distroless` (timezone data is embedded, so
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reminders work without system `tzdata`). The rota cache lives at
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`/data/rota.json` (`ROTA_CACHE_PATH`); mount a volume at `/data` to persist it
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across restarts.
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### Commands
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- `/kto_sprzata` — who is on cleaning duty this week.
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- `/sync` — refresh the rota from Google Sheets now (throttled to once per
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minute across the chat to avoid spamming the Sheets API).
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### Reminders
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If `GROUP_CHAT_ID` is set, the bot posts a weekly duty reminder to that chat.
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Schedule (all optional, with defaults): `REMINDER_WEEKDAY` (default `Monday`),
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`REMINDER_HOUR` (default `9`, 0–23), interpreted in Europe/Warsaw time.
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On each fire the bot handles two weeks relative to the fire time:
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- **This week** — announces who is on duty. If both slots are empty, it picks
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the two people with the fewest duties (random tie-break), writes their names
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into the sheet, and announces the assignment.
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- **Next week** — if both slots are still empty, it asks people to volunteer
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before it gets assigned automatically the following week.
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Leave `GROUP_CHAT_ID` unset to disable reminders.
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