Files
calvana/pledge-now-pay-later
Omair Saleh b25d8c453a AI-native A/B testing: auto-generate variants, auto-promote winners
THE AUTOMATION ENGINE IS NOW SELF-IMPROVING.

## Core: AI generates challenger variants
Click ' AI: Test a new approach' → GPT-4o-mini analyzes variant A
and creates variant B using a fundamentally DIFFERENT psychological
approach. Not a rephrase — a different strategy:
- Social proof ('47 others have already paid')
- Urgency (deadline framing)
- Impact storytelling ('£50 = 3 weeks of food')
- Personal connection (heavy name usage)
- Brevity (strip to minimum)
- Gratitude-first (lead with thanks)
- Loss framing ('pledge at risk of being unfulfilled')
- Community ('join 23 others who completed this week')

AI explains WHY: 'This variant uses social proof instead of a
gentle reminder — peer pressure converts better for step 2.'

## Core: Automatic winner promotion
Click '🏆 Pick winners' → system evaluates ALL running A/B tests:
1. Checks minimum sample size (20 sends per variant)
2. Runs z-test for statistical significance (90% confidence)
3. Promotes winner to variant A (resets counters)
4. Deletes loser
5. AUTOMATICALLY generates a NEW AI challenger

The cycle never stops. Messages continuously evolve.

## Core: AI rewrite toolbar
8 one-click AI rewrites for any template:
✂️ Make shorter · 💛 Make warmer ·  Add urgency
👥 Add social proof · 💚 Add impact story · 🎯 Strip to essentials
🇵🇰 Translate to Urdu · 🇸🇦 Translate to Arabic

All rewrites preserve {{variable}} placeholders.
All use GPT-4o-mini (~/usr/bin/bash.15/1M tokens).

## UI: A/B Stats Card (below phone mockup)
- Side-by-side conversion rates with trophy icon on winner
- Progress bar to verdict (% of minimum sample collected)
- Lift calculation: 'Variant B converts 63% better'
- Real-time during test: 'A: 33% → B: 54% ★'

## UI: Winner Results Banner
After 'Pick winners' runs:
- Green banner: '🏆 Winners promoted — Gentle reminder · WhatsApp
  → Variant B wins (54% vs 33%)  New AI challenger created'
- Gray banner if not enough data: 'Need 20+ sends per variant'

## API: /api/automations/ai (POST)
Actions:
- generate_variant: AI creates challenger B with strategy reasoning
- rewrite: AI rewrites template with specific instruction
- check_winners: evaluate all tests, promote, regenerate

## Architecture
The system is a GENETIC ALGORITHM for messaging:
1. Start with default templates (generation 0)
2. AI creates a challenger (mutation)
3. Traffic splits 50/50 (fitness test)
4. Winner survives, loser dies (selection)
5. AI creates new challenger (next generation)
6. Repeat forever → messages get better over time
2026-03-05 00:42:35 +08:00
..

Pledge Now, Pay Later

Convert "I'll donate later" into tracked pledges with automatic payment follow-up. Free forever for UK charities.

Features

  • 15-Second Pledge Flow: Mobile-first, 3-screen donor experience
  • QR Code Attribution: Every pledge tied to event + volunteer/table
  • Pay by Bank Transfer: Zero fees — unique reference for matching
  • Direct Debit: GoCardless integration for automatic collection
  • Automated Reminders: 4-step follow-up sequence (export/webhook)
  • Bank Statement Reconciliation: Upload CSV, auto-match payments
  • CRM Export: Full attribution data ready for import
  • Pipeline Dashboard: Track pledges from new → paid

Quick Start

Prerequisites

  • Node.js 18+
  • Docker & Docker Compose
  • npm or pnpm

Setup

# 1. Clone and install
cd pledge-now-pay-later
npm install

# 2. Start database
docker compose up -d

# 3. Run migrations
npx prisma migrate dev --name init

# 4. Seed demo data
npx prisma db seed

# 5. Start dev server
npm run dev

Visit http://localhost:3000

Demo URLs

Tech Stack

Layer Technology
Frontend Next.js 14 (App Router)
Language TypeScript
Styling Tailwind CSS + shadcn/ui
Database PostgreSQL 16
ORM Prisma
QR Codes qrcode (node)
CSV Parsing PapaParse
Icons Lucide React
Auth NextAuth.js (ready)

Architecture

src/
├── app/
│   ├── api/              # API routes
│   │   ├── analytics/    # Event tracking
│   │   ├── dashboard/    # Stats & pipeline
│   │   ├── events/       # CRUD + QR management
│   │   ├── exports/      # CRM pack CSV
│   │   ├── imports/      # Bank statement matching
│   │   ├── pledges/      # Create, update, mark paid
│   │   ├── qr/           # Resolve QR tokens
│   │   └── webhooks/     # Reminder event polling
│   ├── dashboard/        # Staff UI
│   │   ├── events/       # Event management + QR codes
│   │   ├── pledges/      # Pledge pipeline
│   │   ├── reconcile/    # Bank CSV import
│   │   ├── exports/      # Download CRM data
│   │   ├── settings/     # Org config
│   │   └── apply/        # Fractional CTO upsell
│   └── p/[token]/        # Donor pledge flow
│       └── steps/        # Amount → Payment → Identity → Instructions
├── components/ui/        # Reusable UI components
└── lib/                  # Core utilities
    ├── prisma.ts         # DB client
    ├── reference.ts      # Bank-safe ref generator
    ├── qr.ts             # QR code generation
    ├── matching.ts       # Bank statement matching
    ├── reminders.ts      # Reminder sequences
    ├── analytics.ts      # Event tracking
    ├── exports.ts        # CRM export formatting
    └── validators.ts     # Zod schemas

API Reference

Endpoint Method Purpose
/api/qr/{token} GET Resolve QR code → event info
/api/pledges POST Create pledge
/api/pledges/{id} PATCH Update pledge status
/api/pledges/{id}/mark-initiated POST Donor "I've paid"
/api/events GET/POST List & create events
/api/events/{id}/qr GET/POST Manage QR sources
/api/events/{id}/qr/{qrId}/download GET Download QR PNG
/api/dashboard GET Dashboard stats
/api/imports/bank-statement POST Upload & match CSV
/api/exports/crm-pack GET Download CRM CSV
/api/webhooks GET Poll pending reminders
/api/analytics POST Track events

Payment Reference Format

References follow format: PREFIX-XXXX-NN

  • PREFIX: Configurable per org (default: PNPL), max 4 chars
  • XXXX: 4-char alphanumeric (human-safe: no 0/O, 1/I/l)
  • NN: Amount in pounds (helps manual matching)
  • Total max 18 chars (UK BACS limit)

Example: PNPL-7K4P-50 (£50 pledge)

Reminder Sequence

Step Delay Message
0 T+0 Payment instructions with bank details
1 T+2 days Gentle nudge
2 T+7 days Impact story + urgency
3 T+14 days Final reminder + easy cancel

Reminders auto-stop when pledge is marked paid.

License

Proprietary — © Omair. All rights reserved.