Trabis

A business-tracking app for freelancers and small businesses in Austria — income/expense tracking, VAT (UVA) reporting, invoicing, and industry-specific modules (Transport/Fleet, Retail/Inventory), plus a read-only companion portal for accountants.

Live: https://smartac-wine.vercel.app

What this is

A single-file, no-build, client-side web app. There is no backend and no build step — index.html is the entire application (HTML, CSS, and JS in one file), loaded directly by the browser or served as-is by Vercel.

Two HTML files make up the product:

• index.html — the main app: transactions, invoices, clients/suppliers, employees, calendar/notes, and (depending on the business's selected type) Fleet or Inventory. This is what business owners use.
• buchhalter.html — German-only, read-only accountant portal in the Trabis design (client list → year/month view with invoices → employees' hours & leave → government entities → Steuerberater-Paket). All data goes through one BuApi object: today it reads the same browser's storage as the app; set window.BU_API_BASE to talk to the server instead (contract in ACCOUNTANT_SHARING.md).

Which file is which

File	What it is
trabis.html	The current app (served at /). Full working app with the new home picker, month screen, Government Entities, Projects and the timesheet/vacation sheet. Same smartac_* storage keys as before.
index.html	The previous stable app, kept untouched and reachable at /index.html.
css/trabis.css, js/*.js	The current app's styles and code, split out of trabis.html by area (01-core … 14-system, then 99-boot). Plain global scripts, loaded in order — no build step. 99-boot.js runs last (language + saved notifications). jsPDF comes from cdnjs (same 2.5.1 that used to be inlined).
preview.html	Static design mockup with demo data only, reachable at /preview.html.
buchhalter.html	Read-only accountant portal (BuApi: local storage now, server via BU_API_BASE).
trabis-package.js	Builds the accountant package (PDF with invoices + Excel + CSV); shared by the app and the portal.

vercel.json redirects / to /trabis.html (a rewrite does not work because Vercel serves the existing index.html first).

Tech stack

• Vanilla JavaScript (ES5-style, no framework, no bundler)
• CSS custom properties for theming (light/dark, RTL support for Arabic)
• jsPDF (bundled inline in index.html) for PDF export; SheetJS via CDN for Excel export
• Tesseract.js for local, in-browser OCR on receipt photos
• No package manager, no package.json, no build pipeline — the app runs by opening the HTML file

Running locally

There's nothing to install or build. Either:

# just open it
open index.html

# or serve it (recommended, so relative paths and the PWA manifest work correctly)
python3 -m http.server 8000
# then visit http://localhost:8000

Data storage

Everything lives in the browser — there is no server and no database.

• localStorage, namespaced per user: keys are prefixed smartac_u_<username>_<key> (see uk() in index.html). All reads/writes go through loadUserData() and save().
• IndexedDB, one database per attachment type: smartac_receipts (expense receipts), smartac_empdocs (employee documents), smartac_fleetdocs (vehicle documents). Created via a shared makeFileStore(dbName) factory.
• Account credentials (hashed via btoa, not real encryption — this is a prototype auth scheme) live under smartac_accounts.

⚠️ IndexedDB gotcha: indexedDB.open(name, version) creates the database if it doesn't exist yet, even from a read-only caller. buchhalter.html has to open these databases without ever accidentally triggering their onupgradeneeded (which would leave an empty, uninitialized store that the main app can then never properly create). If you touch the IndexedDB code in either file, preserve the existence-check-first pattern in buchhalter.html's idbGet()/dbExists().

Because everything is localStorage/IndexedDB, data is per-browser, per-device — there's no sync between devices. That's also why buchhalter.html only works from the same browser the business data was entered in.

Business types (Industry Profiles)

Set once at registration (state.businessType, editable later from Settings → Account). Gates which extra modules show up in navigation:

Type	Unlocks
general	Base app only
transport	Fleet (vehicles, maintenance log, document expiry alerts, depreciation linked to Assets)
retail	Inventory (products, stock levels, low-stock alerts, quantity auto-adjusts on income/expense)
restaurant, construction, medical	Selectable in onboarding, but no dedicated module yet — planned for v2.0

Deployment

Auto-deploys via Vercel on every push to main. There's no CI/build step — Vercel just serves the static files.

Roadmap

See TODO.md for the phased plan (current phase, what's done, what's deferred to the Cloud/v2.0 phase, and why).

Backend handoff

Bringing on a backend developer for the Cloud (v2.0) phase? See BACKEND_HANDOFF.md — what's already set up (Supabase schema, RLS, Auth, Storage buckets), what's still client-only, and the Supabase-vs-own-server tradeoffs.

License

Proprietary — Smartordi OG. Not licensed for reuse.