A webhook endpoint
without the server.

# Signature verification + KV Idempotency (prevent double charging)

import hmac, hashlib, os

def handler(event, context):
    payload = event.get("payload", {})
    payment_id = payload.get("payment", {}).get("entity", {}).get("id")

    # 1. Idempotency Check using built-in KV Store
    if context.kv.get(f"order_{payment_id}"):
        return {"status": "ignored", "reason": "duplicate_event"}

    # 2. Record processed event
    context.kv.set(f"order_{payment_id}", {"processed": True})
    return {"status": "ok", "payment_id": payment_id}

# Receive webhook updates from Telegram bot API

import requests, os

def handler(event, context):
    message = event.get("message", {})
    chat_id = message.get("chat", {}).get("id")
    text = message.get("text", "")

    if text == "/stats":
        count = context.kv.get("total_calls", 0) + 1
        context.kv.set("total_calls", count)
        reply = f"Total bot commands processed: {count}"
        requests.post(
            f"https://api.telegram.org/bot{os.environ['TELEGRAM_TOKEN']}/sendMessage",
            json={"chat_id": chat_id, "text": reply}
        )
    return {"status": "success"}

# Forward GitHub release events to Discord/Slack

import requests, os

def handler(event, context):
    action = event.get("action")
    release = event.get("release", {})
    if action == "published":
        tag = release.get("tag_name")
        url = release.get("html_url")
        requests.post(
            os.environ["DISCORD_WEBHOOK_URL"],
            json={"content": f"🚀 New release published: **{tag}**\n{url}"}
        )
    return {"ok": True}