Wotra — Working Time Tracker

A self-hosted working time tracker with a Go backend and a Svelte PWA frontend. Offline-capable, single-binary deploy.

Features

• Start / Stop time tracking with an optional note.
• Close days: merges all entries (worked_ms = sum of durations, breaks excluded).
• Mark days as holiday, vacation, or sick (auto-credits expected daily hours).
• Close weeks: computes overtime/undertime against a frozen snapshot of your expected hours.
• Settings history: change hours/week with an effective_from date — past closed weeks are unaffected.
• PWA + offline: works without a network connection; syncs via IndexedDB outbox when back online.
• CSV export: entries, days, weeks.
• Midnight guard: running entries are automatically stopped at 23:59:59 if they cross midnight.

Quick Start

Tool versions are declared in mise.toml. Install mise and run mise install once to get the correct Go and Node versions.

Development

# Start both servers (Go API + Vite dev server)
mise run dev
# Go API:  http://localhost:8080
# Vite UI: http://localhost:5173 (with /api proxy)

Note: Dependencies are automatically installed when needed. If you want to manually trigger dependency installation, run mise deps.

AUTH_TOKEN defaults to devtoken in mise.toml. Override it by setting the variable in your environment before running.

Open http://localhost:5173, go to Settings, enter your token.

Production (single binary)

mise run build        # builds web/ then embeds it in the Go binary

AUTH_TOKEN=mysecrettoken ./wotra
# open http://localhost:8080

All tasks

Task	Description
mise run build	Build production binary (web + Go)
mise run build:web	Build Svelte frontend only
mise run build:go	Build Go binary only
mise run dev	Start API + UI dev servers concurrently
mise run dev:api	Start Go API server only
mise run dev:ui	Start Vite dev server only
mise run test	Run all Go tests
mise deps	Install/update project dependencies
mise run clean	Remove build artifacts

Configuration (environment variables)

Variable	Default	Description
AUTH_TOKEN	required	Bearer token for API access
PORT	8080	HTTP port
DB_PATH	wotra.db	SQLite database file path
TZ	UTC	Timezone for day/week key calculation

API Reference

All API endpoints require Authorization: Bearer <token> except /healthz.

Entries

Method	Path	Description
POST	/api/entries/start	Start tracking
POST	/api/entries/{id}/stop	Stop a specific entry
GET	/api/entries?from=&to=	List entries by date
PUT	/api/entries/{id}	Edit start/end/note
DELETE	/api/entries/{id}	Soft-delete an entry

Days

Method	Path	Description
GET	/api/days?from=&to=	List closed days
POST	/api/days/{day}/close	Close a day (merge entries)
POST	/api/days/{day}/mark	Mark as holiday/vacation/sick
DELETE	/api/days/{day}/close	Reopen a closed day

Weeks

Method	Path	Description
GET	/api/weeks?from=&to=	List closed weeks
POST	/api/weeks/{week}/close	Close a week (compute overtime)
DELETE	/api/weeks/{week}/close	Reopen a closed week

Week key format: YYYY-Www (e.g. 2024-W03).

Settings

Method	Path	Description
GET	/api/settings	Current effective settings
PUT	/api/settings	Add a new settings version
GET	/api/settings/history	All settings history

Export

Method	Path	Description
GET	/api/export/entries.csv	Export entries as CSV
GET	/api/export/days.csv	Export days as CSV
GET	/api/export/weeks.csv	Export weeks as CSV

Sync

Method	Path	Description
POST	/api/sync/pull	Pull changes since a version
POST	/api/sync/push	Push local changes (advisory)

Health

Method	Path	Description
GET	/healthz	Unauthenticated health

Architecture

┌─────────────────────────┐         ┌──────────────────────────┐
│   Svelte PWA (client)   │ ◄─────► │    Go service (API)      │
│  - IndexedDB (Dexie)    │  HTTPS  │  - REST/JSON endpoints   │
│  - Service Worker       │  JSON   │  - Business logic        │
│  - Sync outbox          │         │  - SQLite (modernc)      │
└─────────────────────────┘         └──────────────────────────┘

See PLAN.md for the full design document.

Development Notes

• Go module: github.com/wotra/wotra
• SQLite driver: modernc.org/sqlite (pure Go, no CGO)
• Day boundary: entries must not cross midnight; the server auto-stops any running entry at 23:59:59 local time.
• Settings history: effective_from lets you change hours/week without rewriting past closed weeks.
• Overtime: stored as a signed delta_ms on each closed_weeks row. Frozen at close time.