Welcome hot leads on WhatsApp the moment they sign up

from clickruntime import on_event, credentials, http, ai, notify

API = "https://api.hubapi.com/crm/v3/objects"
PHONE_NUMBER_ID = "123456789012345"
WA = f"https://graph.facebook.com/v21.0/{PHONE_NUMBER_ID}/messages"
SCHEMA = {"type": "object", "properties": {"score": {"type": "integer"}, "reason": {"type": "string"}},
          "required": ["score", "reason"]}

@on_event
def handle(event):
    lead = event.json or {}
    result = ai.generate(f"Score this lead 1-10 for buying intent and fit.\nCompany: {lead.get('company')}\n"
                         f"Message: {str(lead.get('message', ''))[:1500]}", json_schema=SCHEMA, max_output_tokens=100).json
    hot = result["score"] >= 8
    headers = {"Authorization": f"Bearer {credentials.connection('hubspot', 'work')}"}
    contact = http.post(f"{API}/contacts", headers=headers, json={"properties": {
        "email": lead["email"], "firstname": lead.get("first_name", ""), "lastname": lead.get("last_name", ""),
        "company": lead.get("company", ""), "phone": lead.get("phone", ""),
        "ai_lead_score": result["score"], "hs_lead_status": "OPEN" if hot else "NEW"}}).json()
    if hot and lead.get("phone"):
        http.post(WA, headers={"Authorization": f"Bearer {credentials.secret('WHATSAPP_TOKEN')}"}, json={
            "messaging_product": "whatsapp", "to": lead["phone"].lstrip("+"), "type": "template", "template": {
                "name": "welcome_hot_lead", "language": {"code": "en"}, "components": [{"type": "body",
                    "parameters": [{"type": "text", "text": lead.get("first_name") or "there"}]}]}}).raise_for_status()
        notify.slack(f"Hot lead ({result['score']}/10) sent a WhatsApp welcome: {lead.get('first_name')} {lead.get('last_name')}"
                     f" at {lead.get('company')}\n{result['reason']}", channel="#sales")
    return {"contact": contact.get("id"), "score": result["score"], "hot": hot}