ProfitRig

Owner-Operator Cost Per Mile calculator. Mobile-first PWA. Built for drivers who aren't tech savvy: big inputs, big numbers, plain English.

Stage 1 (this repo): Each driver creates an account and gets a saved cost profile. The app calculates true cost per mile (CPM), the minimum target rate, break-even monthly revenue, and projected monthly profit — live, as they type.

Stage 2 (next): Weekly load tracker that uses the saved CPM to flag profitable vs. losing loads.

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One-time setup

1. Supabase — create the database table

1. Open your Supabase project: https://qgwzxvqrpuodvuovxkcn.supabase.co
2. Left sidebar → SQL Editor → New query
3. Open the file supabase-setup.sql in this repo, copy the whole contents into the editor, click Run.
4. (Optional but recommended for testing) Left sidebar → Authentication → Sign In / Up → toggle off "Confirm email" so you can sign up and use the app immediately without checking email. Turn it back on for production.

2. Vercel — deploy

1. Go to https://vercel.com/new and import Sebabrzek/profitrig.
2. On the Configure Project screen, expand Environment Variables and add:
   • NEXT_PUBLIC_SUPABASE_URL = https://qgwzxvqrpuodvuovxkcn.supabase.co
   • NEXT_PUBLIC_SUPABASE_ANON_KEY = your publishable key (sb_publishable_...)
3. Click Deploy. Vercel will give you a free *.vercel.app URL — that's your live app.
4. Later: add a custom domain (profitrig.com) in Project → Settings → Domains.

3. Supabase — add the Vercel URL to allowed redirect URLs

1. Supabase → Authentication → URL Configuration
2. Set Site URL to your Vercel URL (e.g. https://profitrig.vercel.app)
3. Add the same URL to Redirect URLs.

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Local development

npm install
npm run dev

Open http://localhost:3000. Sign up with any email/password (must be 6+ chars), then you'll land on the calculator.

.env.local already contains your Supabase URL + key.

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What's in the box

• src/app/page.tsx — main calculator screen (server component, auth-gated, loads saved profile)
• src/app/Calculator.tsx — interactive form + live results
• src/app/login/ — sign in / sign up
• src/app/actions.ts — server actions (sign in, sign up, sign out, save profile)
• src/lib/supabase/ — Supabase clients (browser, server, middleware)
• src/middleware.ts — refreshes the user session on every request, redirects to /login if not signed in
• supabase-setup.sql — the database schema + row-level-security policies (run this once in Supabase)
• public/manifest.webmanifest + public/icons/ — PWA config, "Add to Home Screen" works

Stage 2 plan (load tracker)

Add loads table keyed by user_id with: date, broker, miles, rate paid, optional fuel cost, profit/loss vs. saved CPM, week aggregates. Same auth, same shadcn-style UI. Will reuse the saved cost_profiles row.