/// FLEET — Fuel & Maintenance Tracker

Personal Fuelly replacement plus maintenance-interval tracking for a 4-vehicle Toyota/Lexus fleet: 2015 GX460 · 2017 IS350 F-Sport · 2004 GX470 · 1991 Land Cruiser FJ80 "Ghost".

Stack

• Frontend: Vite + React, deployed on Netlify
• Backend: Supabase (Postgres + Auth + RLS)
• Auth: Email/password, single-user. All tables row-level-secured to auth.uid().

Features

• Fuel log — Fuelly-style fill tracking with full/partial/reset fill types. MPG computed with proper partial-fill accumulation. Auto-derives the third value from any two of gallons / $/gal / total.
• Service log — service history with parts, cost, shop. Logging a service can automatically roll the matching maintenance interval's baseline forward.
• Maintenance intervals — mileage- and/or time-based intervals per vehicle with overdue / due-soon / ok status computed against the highest odometer reading seen. Includes KDSS fluid inspection for the GX460.
• Dashboard — per-vehicle gauges: odometer, aggregate MPG, fuel cost/mile, estimated annual fuel spend (annualized from actual logging cadence).
• Data — CSV export of all tables; Fuelly CSV import with duplicate detection.

Environment variables (set in Netlify)

Var	Value
VITE_SUPABASE_URL	Supabase project URL
VITE_SUPABASE_KEY	Supabase publishable (anon) key

Database

Schema lives in supabase/migrations/0001_init.sql. Tables: vehicles, fuel_logs, service_logs, maintenance_items. All RLS-protected owner-only.

Local development

npm install
VITE_SUPABASE_URL=... VITE_SUPABASE_KEY=... npm run dev

First run

1. Create your account on the login screen.
2. Then disable new signups: Supabase Dashboard → Authentication → Sign In / Up → toggle "Allow new users to sign up" off. You're the only account; nobody else can register.
3. Tap Load My Fleet to seed the four vehicles, fuel history, and maintenance intervals.

MPG methodology

• reset rows establish an odometer baseline (first fill, or after missed fills).
• partial rows accumulate gallons; MPG defers to the next full fill.
• full rows compute MPG = miles since last full ÷ (accumulated + this fill's gallons).

This matches Fuelly's methodology, so imported history computes identical figures.