import functions_framework
import requests
import os

CHAT_WEBHOOK = os.environ.get("CHAT_WEBHOOK_URL")

@functions_framework.http
def handler(request):
    try:
        payload = request.get_json(silent=True) or {}
        repo_obj = payload.get("repository", {})
        repo     = repo_obj.get("full_name") or repo_obj.get("name") or "(ukjent repo)"

        pusher_obj = payload.get("pusher", {})
        pusher     = (
            pusher_obj.get("login")
            or pusher_obj.get("full_name")
            or pusher_obj.get("name")
            or pusher_obj.get("email")
            or payload.get("sender", {}).get("login")
            or payload.get("sender", {}).get("full_name")
            or "(ukjent bruker)"
        )

        ref     = payload.get("ref", "").replace("refs/heads/", "")
        commits = payload.get("commits", [])
        lines   = [f"\U0001f500 *Push til {repo}* \u2014 branch {ref} av {pusher}"]
        for c in commits[:5]:
            sha = c.get("id","")[:7]
            msg = c.get("message","").split("\n")[0][:80]
            url = c.get("url","")
            lines.append(f"  \u2022 {sha}: {msg}\n    {url}")
        requests.post(CHAT_WEBHOOK, json={"text": "\n".join(lines)}, timeout=5)
        return ("OK", 200)
    except Exception as e:
        return (str(e), 500)