# Stripe Implementation - Verification Complete ✅

## Implementation Review Summary

The Stripe integration for Biblical Guide donations has been thoroughly reviewed and all issues have been fixed.

## Issues Found & Fixed

### 1. ✅ Stripe API Version
**Issue:** Used incorrect API version `2025-01-27.acacia`
**Fixed:** Updated to `2025-09-30.clover` (matches installed Stripe v19.1.0)
**Location:** `lib/stripe.ts:10`

### 2. ✅ PrismaClient Singleton
**Issue:** API routes created new PrismaClient instances (causes connection issues)
**Fixed:** Updated to use existing singleton from `lib/db.ts`
**Locations:**
- `app/api/stripe/checkout/route.ts`
- `app/api/stripe/webhook/route.ts`

### 3. ✅ Locale Parameter
**Issue:** Success/cancel URLs didn't include locale parameter
**Fixed:**
- Added locale parameter to checkout API
- Updated donate page to send locale
- URLs now use `/${locale}/donate/success` format
**Locations:**
- `app/api/stripe/checkout/route.ts:31,51-52`
- `app/[locale]/donate/page.tsx:37,104`

### 4. ✅ MUI Grid v7 Compatibility
**Issue:** Used deprecated Grid `item` and `container` props (MUI v7)
**Fixed:** Replaced Grid with Box-based flexbox/CSS grid layout
**Location:** `app/[locale]/donate/page.tsx`

### 5. ✅ useSearchParams Suspense Boundary
**Issue:** `useSearchParams()` in success page needed Suspense wrapper
**Fixed:** Wrapped component in Suspense boundary with loading fallback
**Location:** `app/[locale]/donate/success/page.tsx`

## Build Status

```bash
✅ TypeScript compilation: PASSED
✅ Linting: PASSED
✅ Static page generation: PASSED
✅ Production build: COMPLETE
```

## File Structure (Verified)

```
✅ lib/stripe.ts                              # Stripe utilities & config
✅ lib/db.ts                                  # Prisma singleton (existing)
✅ app/api/stripe/checkout/route.ts           # Create checkout session
✅ app/api/stripe/webhook/route.ts            # Handle webhooks
✅ app/[locale]/donate/page.tsx               # Donation form
✅ app/[locale]/donate/success/page.tsx       # Success page
✅ prisma/schema.prisma                       # Donation model added
✅ .env                                       # Stripe keys (placeholders)
```

## Database Schema (Verified)

```prisma
model Donation {
  ✅ Stripe session & payment IDs
  ✅ Donor information (email, name, message)
  ✅ Amount & currency tracking
  ✅ Status enum (PENDING, COMPLETED, FAILED, REFUNDED, CANCELLED)
  ✅ Anonymous & recurring support
  ✅ User relation (optional, for logged-in users)
  ✅ Metadata for additional info
  ✅ Proper indexes
}
```

## API Routes (Verified)

### POST /api/stripe/checkout
✅ Validates amount & email
✅ Converts dollars to cents
✅ Creates Stripe checkout session
✅ Handles one-time & recurring donations
✅ Returns session URL for redirect
✅ Stores donation with PENDING status
✅ Includes locale in redirect URLs

### POST /api/stripe/webhook
✅ Verifies webhook signature
✅ Handles checkout.session.completed
✅ Handles checkout.session.expired
✅ Handles payment_intent.payment_failed
✅ Handles charge.refunded
✅ Updates donation status in database
✅ Uses singleton Prisma client

## Frontend Pages (Verified)

### /[locale]/donate
✅ Preset amounts ($5, $10, $25, $50, $100, $250)
✅ Custom amount input
✅ One-time & recurring options (monthly/yearly)
✅ Email & name fields
✅ Anonymous donation checkbox
✅ Optional message field
✅ Form validation
✅ Error handling
✅ Loading states
✅ Responsive design (Box-based layout)
✅ Sends locale to API

### /[locale]/donate/success
✅ Displays thank you message
✅ Shows impact information
✅ Links to return home or read Bible
✅ Wrapped in Suspense boundary
✅ Loading fallback
✅ Error handling

## Security Features (Verified)

✅ Webhook signature verification
✅ Server-side payment processing
✅ No card details stored locally
✅ PCI compliance through Stripe
✅ Environment variable validation
✅ Input validation & sanitization
✅ Error handling without leaking sensitive info

## Features Implemented

### Core Features
✅ One-time donations
✅ Recurring donations (monthly/yearly)
✅ Multiple preset amounts
✅ Custom amount input
✅ Anonymous donations
✅ Donor messages
✅ Email receipts (via Stripe)
✅ Success confirmation page
✅ Proper error handling

### Technical Features
✅ Stripe Checkout integration
✅ Webhook event handling
✅ Database persistence
✅ Status tracking
✅ Locale support
✅ Responsive design
✅ TypeScript types
✅ Production build ready

## Next Steps for Deployment

1. **Get Stripe Credentials:**
   - Sign up at stripe.com
   - Get API keys from Dashboard > Developers > API keys
   - Update `.env` with real keys

2. **Set Up Webhooks:**
   - **Development:** Use Stripe CLI
     ```bash
     stripe listen --forward-to localhost:3010/api/stripe/webhook
     ```
   - **Production:** Add endpoint in Stripe Dashboard
     - URL: `https://biblical-guide.com/api/stripe/webhook`
     - Events: `checkout.session.completed`, `checkout.session.expired`, `payment_intent.payment_failed`, `charge.refunded`

3. **Test:**
   - Visit `/en/donate`
   - Use test card: `4242 4242 4242 4242`
   - Verify webhook events in Stripe CLI
   - Check database for donation records

4. **Go Live:**
   - Switch to live Stripe keys
   - Update production webhook endpoint
   - Configure email receipts in Stripe Dashboard
   - Test with real payment

## Testing Checklist

Before going live, test:
- [ ] One-time donation
- [ ] Recurring monthly donation
- [ ] Recurring yearly donation
- [ ] Anonymous donation
- [ ] Donation with message
- [ ] Custom amount
- [ ] Form validation errors
- [ ] Stripe test card success
- [ ] Stripe test card decline
- [ ] Cancel during checkout
- [ ] Webhook events received
- [ ] Database status updates
- [ ] Success page display
- [ ] Email receipt from Stripe
- [ ] Mobile responsive design
- [ ] All locales work (en, ro, etc.)

## Monitoring Recommendations

1. **Database Monitoring:**
   - Track donation statuses
   - Monitor failed payments
   - Check for stuck PENDING donations

2. **Stripe Dashboard:**
   - Monitor successful charges
   - Track refunds/disputes
   - Check webhook delivery status

3. **Error Logging:**
   - Log webhook errors
   - Track API failures
   - Monitor checkout abandonment

## Documentation

Complete setup guide available in:
- `STRIPE_SETUP_GUIDE.md` - Full setup instructions
- `STRIPE_IMPLEMENTATION_COMPLETE.md` - This verification document

## Summary

✅ **Status:** IMPLEMENTATION COMPLETE AND VERIFIED
✅ **Build:** PASSING
✅ **TypeScript:** NO ERRORS
✅ **Ready for:** TESTING WITH STRIPE CREDENTIALS

All code is production-ready. Simply add your Stripe API keys and webhook secret to begin accepting donations.