# Stripe Payment Page - Usage Guide

## 🚀 Quick Start

The Stripe Payment Page is now available at:
```
http://localhost:5173/payment
```

## 📋 Features

✅ Stripe Payment Element UI
✅ Test/Dummy mode (no real charges)
✅ Clean, modern design with gradient background
✅ Amount display: $99.00 USD
✅ Loading spinner during payment processing
✅ Success message with animation
✅ Error handling with user-friendly messages
✅ Fully responsive design
✅ Security badge
✅ Production-ready React hooks structure

## 🧪 Testing the Payment

### Test Card Numbers

Use these Stripe test cards for different scenarios:

**Success:**
- Card: `4242 4242 4242 4242`
- Expiry: Any future date (e.g., `12/34`)
- CVC: Any 3 digits (e.g., `123`)
- ZIP: Any 5 digits (e.g., `12345`)

**Declined Card:**
- Card: `4000 0000 0000 0002`

**Requires Authentication (3D Secure):**
- Card: `4000 0025 0000 3155`

**Insufficient Funds:**
- Card: `4000 0000 0000 9995`

### Expected Behavior

1. **Initial State**: Shows payment form with card input
2. **Processing**: Button shows spinner and "Processing..." text
3. **Success**: Displays green checkmark with success message
4. **Error**: Shows red error banner with error message

## 🔧 Customization

### Change Amount

Edit [StripePaymentPage.jsx:79](src/components/StripePaymentPage/StripePaymentPage.jsx#L79):
```jsx
<span className="amount-value">$99.00 USD</span>
```

And [StripePaymentPage.jsx:125](src/components/StripePaymentPage/StripePaymentPage.jsx#L125):
```jsx
<span>Pay $99.00</span>
```

### Change Currency

Modify the amount display in the same locations above.

### Add Real Backend

Update [StripePaymentWrapper.jsx:31-42](src/components/StripePaymentWrapper/StripePaymentWrapper.jsx#L31):
```jsx
const response = await fetch('/api/create-payment-intent', {
  method: 'POST',
  headers: { 'Content-Type': 'application/json' },
  body: JSON.stringify({ amount: 9900, currency: 'usd' })
})
const data = await response.json()
setClientSecret(data.clientSecret)
```

### Update Stripe Keys

For production, replace the test key in [StripePaymentWrapper.jsx:7](src/components/StripePaymentWrapper/StripePaymentWrapper.jsx#L7):
```jsx
const stripePromise = loadStripe('pk_live_your_actual_key_here')
```

## 🎨 Styling

The payment page uses a purple gradient background and clean white card design. To customize:

### Colors
Edit [StripePaymentPage.css:5](src/components/StripePaymentPage/StripePaymentPage.css#L5):
```css
background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
```

### Button Style
Edit [StripePaymentPage.css:98](src/components/StripePaymentPage/StripePaymentPage.css#L98):
```css
.pay-button {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}
```

## 📱 Responsive Design

The payment page is fully responsive and looks great on:
- Desktop (1920px+)
- Tablet (768px - 1024px)
- Mobile (320px - 767px)

## 🔒 Security

- Uses Stripe's secure Payment Element
- No sensitive card data touches your server
- Test mode enabled (no real charges)
- PCI compliance handled by Stripe

## 🐛 Troubleshooting

**Issue: Payment button is disabled**
- Solution: Wait for Stripe to fully load (usually 1-2 seconds)

**Issue: "Payment Setup Failed" error**
- Solution: Check internet connection and Stripe API key

**Issue: Card input not showing**
- Solution: Verify Stripe packages are installed: `npm install`

## 📦 Dependencies

Already installed in your project:
- `@stripe/react-stripe-js` (v5.6.0)
- `@stripe/stripe-js` (v8.7.0)

## 🔗 Integration with Existing Routes

The payment page is added at `/payment` route without affecting:
- `/login` - LoginFlow component
- `/otpverification` - OtpVerificationRoute component

## 📝 Notes

- Currently in **TEST MODE** - no real charges will occur
- Uses a dummy client secret for demonstration
- For production, implement a backend API endpoint
- All error states are handled gracefully
- Success state allows retrying payment

## 🚦 Next Steps

To use with real payments:

1. Create a backend API endpoint for payment intent creation
2. Update `createPaymentIntent()` in StripePaymentWrapper
3. Replace test Stripe key with production key
4. Add webhook handlers for payment confirmation
5. Implement proper error logging and monitoring

---

**Built with React, Stripe Elements, and modern web standards.**
