// app/api/create-payment/route.ts
import { NextResponse } from 'next/server';

export async function POST(request: Request) {
  const { amount, currency } = await request.json();
  
  const response = await fetch('https://pay.fogopulse.com/api/payment/initialize', {
    method: 'POST',
    headers: {
      'Content-Type': 'application/json',
      'Authorization': `Bearer ${process.env.WEB3_PAYSTACK_SECRET_KEY}`
    },
    body: JSON.stringify({ amount, currency })
  });
  
  return NextResponse.json(await response.json());
}

// components/PayButton.tsx
'use client';
export function PayButton({ amount }: { amount: number }) {
  const handlePay = async () => {
    const res = await fetch('/api/create-payment', {
      method: 'POST',
      body: JSON.stringify({ amount, currency: 'USD' })
    });
    const { widget_url } = await res.json();
    window.location.href = widget_url;
  };
  
  return <button onClick={handlePay}>Pay with Crypto</button>;
}

import requests
import os

def create_payment(amount, currency='USD'):
    response = requests.post(
        'https://pay.fogopulse.com/api/payment/initialize',
        headers={
            'Content-Type': 'application/json',
            'Authorization': f'Bearer {os.getenv("WEB3_PAYSTACK_SECRET_KEY")}'
        },
        json={'amount': amount, 'currency': currency}
    )
    return response.json()

# In your view
def checkout(request):
    payment = create_payment(100.00)
    return redirect(payment['widget_url'])

<?php

function createPayment($amount, $currency = 'USD') {
    $ch = curl_init('https://pay.fogopulse.com/api/payment/initialize');
    
    curl_setopt($ch, CURLOPT_POST, true);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_HTTPHEADER, [
        'Content-Type: application/json',
        'Authorization: Bearer ' . getenv('WEB3_PAYSTACK_SECRET_KEY')
    ]);
    curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode([
        'amount' => $amount,
        'currency' => $currency
    ]));
    
    $response = curl_exec($ch);
    curl_close($ch);
    return json_decode($response, true);
}

// Usage
$payment = createPayment(100.00);
header('Location: ' . $payment['widget_url']);

{
  "event": "payment.completed",
  "session_id": "sess_abc123",
  "status": "completed",
  "amount": "100.00",
  "currency": "USD",
  "customer_paid": "0.05 ETH",
  "settled_amount": "100.00",
  "settled_currency": "USDC",
  "tx_hash": "0x742d35...",
  "from_address": "0xabc123...",
  "to_address": "0xdef456...",
  "merchant_id": "your_merchant_id",
  "timestamp": "2024-11-17T10:30:00Z"
}

const crypto = require('crypto');

app.post('/webhooks/web3paystack', (req, res) => {
  // Get signature from header
  const signature = req.headers['x-web3paystack-signature'];
  const payload = JSON.stringify(req.body);
  
  // Calculate expected signature
  const expected = crypto
    .createHmac('sha256', process.env.WEBHOOK_SECRET)
    .update(payload)
    .digest('hex');
  
  // Verify signature matches
  if (signature !== expected) {
    console.error('Invalid webhook signature');
    return res.status(401).send('Invalid signature');
  }
  
  // Process payment
  const { event, session_id, status, settled_amount } = req.body;
  
  if (event === 'payment.completed') {
    // Update your database, send confirmation email, fulfill order, etc.
    console.log(`Payment completed: ${session_id}`);
    // Your business logic here...
  }
  
  res.status(200).send('OK');
});