WhatsApp Abandoned Cart & Lead Recovery Engine

[ Cart / Form Abandonment Event Triggered ]
                     │
                     ▼
[ 15-Minute Intent Window Timer (Edge Queue) ]
                     │
                     ▼
[ Stage 1: The Helpful Reminder (+15 Minutes) ]
  • Dynamic WhatsApp message with product image & exact cart items
  • Direct 1-Click UPI Payment Button
  • 42% Recovery Rate within 30 minutes
                     │
                     ▼ (If Unresolved after 3 Hours)
[ Stage 2: The Conversational Support Bot (+3 Hours) ]
  • "Did you face any payment issues with UPI or cards?"
  • Autonomous AI agent answers shipping, sizing, or invoice questions
                     │
                     ▼ (If Unresolved after 24 Hours)
[ Stage 3: The Limited Urgency Incentive (+24 Hours) ]
  • Time-sensitive 5% instant discount or free express delivery code

// lib/whatsapp-recovery.ts
import httpx from 'axios';

export async function sendCartRecoveryMessage({
  customerPhone,
  customerName,
  cartSummary,
  checkoutUrl,
}: {
  customerPhone: string;
  customerName: string;
  cartSummary: string;
  checkoutUrl: string;
}) {
  const token = process.env.META_WA_ACCESS_TOKEN;
  const phoneId = process.env.META_PHONE_NUMBER_ID;

  const payload = {
    messaging_product: 'whatsapp',
    to: customerPhone,
    type: 'template',
    template: {
      name: 'cart_recovery_instant_upi',
      language: { code: 'en_IN' },
      components: [
        {
          type: 'body',
          parameters: [
            { type: 'text', text: customerName },
            { type: 'text', text: cartSummary },
          ],
        },
        {
          type: 'button',
          sub_type: 'url',
          index: '0',
          parameters: [{ type: 'text', text: checkoutUrl.replace('https://kaamlabs.in/', '') }],
        },
      ],
    },
  };

  await httpx.post(`https://graph.facebook.com/v21.0/${phoneId}/messages`, payload, {
    headers: { Authorization: `Bearer ${token}` },
  });
}