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Receipts — Build Progress

Current Status: Phase 3 - Authentication + AI Verification Complete

Started: Jan 29, 2026 10:07 AM PT Builder: Rosie via Claude Code

Phase 1 MVP Checklist

Project Setup

  • Scaffold Next.js 14 project with App Router
  • Set up Tailwind CSS + custom design system
  • Configure PostgreSQL (Neon via Prisma)
  • Set up Prisma ORM
  • Configure authentication (Clerk - Google, Apple, email, SMS)
  • Set up Vercel deployment (ready - needs env vars)

Receipt Card Component

  • Implement Design 2A (Classic Clean) as React component
  • Add Pending state styling
  • Add Verified state styling
  • Add Wrong state styling
  • Open Graph image generation (og-image)
  • Portrait-oriented receipts (340px width)
  • Export as PNG for sharing

AI Take Verification

  • Claude API integration (@anthropic-ai/sdk)
  • Natural language parsing
  • Structured data extraction (subject, prediction, timeframe)
  • Resolution date auto-assignment
  • Take refinement suggestions
  • User confirmation flow before locking

NBA Data Integration

  • NBA API client setup
  • Standings endpoint
  • Game results endpoint
  • Auto-resolution job scheduler

Core Features

  • Take submission form with AI verification
  • Take detail page
  • User profile page
  • Public take feed (real data from DB)
  • Share functionality (copy link)

App Clip (Later)

  • iOS App Clip target
  • Associated Domains
  • Smart App Banner

Build Log

Jan 29, 2026

10:07 AM — Starting build! Scaffolding Next.js project with the approved 2A design.

10:15 AM — Phase 1 foundation complete:

  • Scaffolded Next.js 14 with App Router + TypeScript
  • Set up Tailwind CSS with custom receipt design system:
    • Receipt paper colors (#fafaf8 background)
    • Status colors (pending amber, verified green, wrong red)
    • Space Mono font for receipt aesthetic
  • Built ReceiptCard component matching Design 2A exactly:
    • Perforated edges (top and bottom)
    • Dashed dividers
    • Monospace typography
    • All 3 states (pending, verified, wrong)
  • Created TakeForm component with:
    • Character limit (280)
    • Lock animation
    • Validation
  • Built responsive homepage with:
    • Hero section with tagline
    • Take submission form
    • Sample receipts grid (3 columns on desktop)
    • Header and footer

11:00 AM — Database layer complete:

  • Set up Prisma ORM with PostgreSQL
  • Created database schema:
    • Take model: id, text, author, hash, timestamps, status, userId
    • User model: id, username, email, wins, losses
    • TakeStatus enum: PENDING, VERIFIED, WRONG
  • Built API routes:
    • GET /api/takes - Fetch all takes (most recent first)
    • POST /api/takes - Create a new take with SHA-256 hash
    • GET /api/takes/[id] - Fetch single take
  • Updated TakeForm to submit to API with author name field
  • Homepage now fetches real takes from database
  • Built take detail page (/take/[id]) with:
    • Full receipt display
    • All metadata (locked date, hash)
    • Share button (copy link)
    • SEO meta tags

12:30 PM — OG Image generation complete:

  • Installed @vercel/og for dynamic image generation
  • Created /api/og/[id]/route.tsx Edge API endpoint
  • Renders receipt card as 1200x630 OG image matching 2A design:
    • Paper/cream background (#fafaf8)
    • Monospace font styling
    • RECEIPTS header with perforated edges
    • Bold take text (truncated at 140 chars)
    • FROM and LOCKED fields
    • Status badge (pending=amber, verified=green, wrong=red)
    • Resolves date for pending takes
    • Hash at bottom
  • Updated /take/[id] page with OG image meta tags:
    • OpenGraph images array with proper dimensions
    • Twitter card with summary_large_image
  • Receipts now display beautifully when shared on Twitter/iMessage/etc.

2:00 PM — Receipt proportions fixed:

  • Updated take detail page to use 340px width (portrait orientation)
  • Made receipts tall and narrow like real paper receipts
  • Updated OG image to match portrait proportions
  • Consistent sizing between ReceiptCard component and detail page

3:00 PM — Authentication with Clerk complete:

  • Installed @clerk/nextjs
  • Added ClerkProvider to root layout
  • Created middleware for auth route protection
  • Built Header component with:
    • Sign In / Sign Up buttons (when signed out)
    • UserButton with avatar (when signed in)
  • Updated Prisma schema:
    • User model now uses clerkId for Clerk integration
    • Added imageUrl field for profile pictures
  • Takes now linked to authenticated users

3:30 PM — AI Take Verification complete:

  • Installed @anthropic-ai/sdk for Claude API
  • Created /api/verify endpoint that:
    • Analyzes prediction text for verifiability
    • Extracts structured data: subject, prediction, timeframe
    • Assigns resolution criteria and dates
    • Suggests refined wording if needed
  • Rewrote TakeForm with multi-step flow:
    1. Input: User types their take
    2. Verifying: AI analyzes the prediction
    3. Confirm: Shows AI interpretation with Lock It In button
    4. Sign In: If not authenticated, prompts sign-in (take preserved)
    5. Saving: Locks take to blockchain-style hash
  • Updated takes API to store AI verification data:
    • aiVerified, aiSubject, aiPrediction
    • aiTimeframe, aiResolutionCriteria

File Structure

app/
├── prisma/
│   └── schema.prisma           # Database schema (Clerk-integrated)
├── src/
│   ├── app/
│   │   ├── api/
│   │   │   ├── og/
│   │   │   │   └── [id]/route.tsx  # Dynamic OG image generation
│   │   │   ├── takes/
│   │   │   │   ├── route.ts        # GET/POST takes
│   │   │   │   └── [id]/route.ts   # GET single take
│   │   │   └── verify/
│   │   │       └── route.ts        # AI verification endpoint
│   │   ├── take/
│   │   │   └── [id]/page.tsx       # Take detail page
│   │   ├── globals.css             # Tailwind + design system
│   │   ├── layout.tsx              # Root layout (ClerkProvider)
│   │   └── page.tsx                # Homepage
│   ├── components/
│   │   ├── Header.tsx              # Navigation with auth
│   │   ├── ReceiptCard.tsx         # Design 2A receipt
│   │   ├── TakeForm.tsx            # Multi-step take submission
│   │   └── ShareButtons.tsx        # Share functionality
│   ├── lib/
│   │   ├── db.ts                   # Prisma client singleton
│   │   └── types.ts                # Shared TypeScript types
│   └── middleware.ts               # Clerk auth middleware
├── .env                            # Environment variables (not committed)
├── package.json
└── tsconfig.json

Environment Variables

For Vercel deployment, add:

  • DATABASE_URL - Neon PostgreSQL connection string
  • NEXT_PUBLIC_CLERK_PUBLISHABLE_KEY - Clerk publishable key
  • CLERK_SECRET_KEY - Clerk secret key
  • ANTHROPIC_API_KEY - Claude API key for AI verification

Clerk Setup

  1. Create account at clerk.com
  2. Create an application
  3. Enable desired sign-in methods (Google, Apple, Email, SMS)
  4. Copy keys to Vercel environment variables

Next Steps

  1. NBA Data Integration - Connect to NBA API for auto-resolution
  2. User Profile Page - Show user's takes and win/loss record
  3. Export as PNG - Allow users to download receipt images
  4. App Clip - iOS App Clip for quick sharing