Post P1 and P2 incidents to Slack

from datetime import datetime, timezone
from clickruntime import on_trigger, credentials, http, state, notify, report_fetched

INSTANCE = "northwind"

def snow(method, path, **kw):
    resp = http.request(method, f"https://{INSTANCE}.service-now.com/api/now/{path}",
                        auth=(credentials.secret("SERVICENOW_USER"), credentials.secret("SERVICENOW_PASSWORD")),
                        headers={"Accept": "application/json"}, **kw)
    resp.raise_for_status()
    return resp.json()["result"]

@on_trigger
def run(event):
    since = state.get("since") or datetime.now(timezone.utc).strftime("%Y-%m-%d %H:%M:%S")
    rows = snow("GET", "table/incident", params={
        "sysparm_query": f"sys_created_on>{since}^priorityIN1,2^ORDERBYsys_created_on",
        "sysparm_display_value": "true", "sysparm_fields": "number,short_description,assignment_group,priority,sys_created_on"})
    report_fetched(len(rows))
    if not rows:
        return {"summary": "Nothing new"}
    for i in rows:
        group = (i["assignment_group"] or {}).get("display_value", "unassigned")
        notify.slack(f"{i['priority']}: *{i['number']}* {i['short_description']} → {group}", channel="#major-incidents")
    state.set("since", datetime.now(timezone.utc).strftime("%Y-%m-%d %H:%M:%S"))
    return {"posted": len(rows)}