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

# Install frontend dependencies (first time only)
mise run install

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

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 run install	Install frontend npm 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.