Run one support bot on WhatsApp and Telegram

from clickruntime import on_event, credentials, http, ai

FAQ = "Open 9-6 CET. Shipping EU 3-5 days. Returns within 30 days."
OWNER_CHAT = 123456789
WA = "https://graph.facebook.com/v20.0/your-phone-number-id/messages"

def wa(to, text):
    http.post(WA, headers={"Authorization": f"Bearer {credentials.secret('WHATSAPP_TOKEN')}"},
              json={"messaging_product": "whatsapp", "to": to, "type": "text", "text": {"body": text}}).raise_for_status()
TG = "https://api.telegram.org"

def tg(chat_id, text):
    http.post(f"{TG}/bot{credentials.secret('TELEGRAM_BOT_TOKEN')}/sendMessage", json={"chat_id": chat_id, "text": text})

@on_event
def handle(event):
    body = event.json or {}
    if "message" in body:
        chats = [("tg", body["message"]["chat"]["id"], body["message"].get("text", ""))]
    else:
        msgs = [m for e in body.get("entry", []) for c in e["changes"] for m in c["value"].get("messages", []) if m["type"] == "text"]
        chats = [("wa", m["from"], m["text"]["body"]) for m in msgs]
    for app, who, text in chats:
        answer = ai.generate(text[:1500], max_output_tokens=200,
                             system=f"Answer briefly from these facts: {FAQ}. If you can't, reply exactly ESCALATE.").text.strip()
        if answer == "ESCALATE":
            answer = "Thanks, a person from our team will reply here shortly."
            tg(OWNER_CHAT, f"Needs a person ({app} {who}): {text[:500]}")
        wa(who, answer) if app == "wa" else tg(who, answer)
    return {"handled": len(chats)}