"""
ingest_events_rev.py — Fireside Communications · Tracksolid Events Pipeline
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
RESPONSIBILITY: Alarm event polling (catch-up/fallback for webhook push data).

OBD diagnostics are received via the webhook_receiver_rev.py push service —
jimi.device.obd.list does not exist in the Tracksolid Pro API.

REVISIONS (QA-Verified):
  [FIX-E01] Batching: Polls 50 IMEIs per call to stay within API limits.
  [FIX-E03] Atomic Logging: One log row per batch per endpoint.
  [FIX-E04] Signal Handling: Clean pool closure on SIGTERM/SIGINT.
  [FIX-E05] Removed poll_obd: OBD data is push-only via /pushobd webhook.
  [FIX-11]  Uses shared safe_task/setup_shutdown from ts_shared_rev (DRY).
  [FIX-E06] BUG-01: jimi.device.alarm.list returns alertTypeId/alarmTypeName/
            alertTime — not alarmType/alarmName/alarmTime (those are webhook
            field names). Corrected field mapping so alarm_type and alarm_name
            are no longer silently stored as NULL.
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"""

import time
import schedule
from datetime import datetime, timezone, timedelta

from ts_shared_rev import (
    api_post,
    get_active_imeis,
    get_conn,
    get_token,
    log_ingestion,
    clean,
    clean_num,
    clean_int,
    clean_ts,
    get_logger,
    safe_task,
    setup_shutdown,
)

log = get_logger("events")
setup_shutdown(log)

# ── 1. Alarms & Geofence Events (Every 5m) ────────────────────────────────────

def poll_alarms():
    log.info("Polling device alarms...")
    t0, token, imeis = time.time(), get_token(), get_active_imeis()
    if not token or not imeis: return

    end_ts = datetime.now(timezone.utc)
    start_ts = end_ts - timedelta(minutes=30) # Look back 30m to ensure coverage
    inserted = 0

    with get_conn() as conn:
        with conn.cursor() as cur:
            for i in range(0, len(imeis), 50):
                batch = imeis[i:i+50]
                resp = api_post("jimi.device.alarm.list", {
                    "imeis":      ",".join(batch),
                    "begin_time": start_ts.strftime("%Y-%m-%d %H:%M:%S"),
                    "end_time":   end_ts.strftime("%Y-%m-%d %H:%M:%S"),
                    "page_size":  100
                }, token)

                alarms = resp.get("result") or []
                if not alarms: continue

                for a in alarms:
                    try:
                        cur.execute("SAVEPOINT sp")
                        lat, lng = clean_num(a.get("lat")), clean_num(a.get("lng"))
                        # [FIX-E06] Poll response uses alertTypeId/alarmTypeName/alertTime,
                        # not alarmType/alarmName/alarmTime (those are webhook push field names).
                        alarm_type = clean(a.get("alertTypeId"))
                        alarm_name = clean(a.get("alarmTypeName"))
                        alarm_time = clean_ts(a.get("alertTime"))

                        cur.execute("""
                            INSERT INTO tracksolid.alarms (
                                imei, alarm_type, alarm_name, alarm_time, geom, lat, lng,
                                speed, acc_status, source, updated_at
                            ) VALUES (
                                %s, %s, %s, %s,
                                CASE WHEN %s IS NOT NULL AND %s IS NOT NULL
                                     THEN ST_SetSRID(ST_MakePoint(%s, %s), 4326)
                                     ELSE NULL END,
                                %s, %s, %s, %s, 'poll', NOW()
                            ) ON CONFLICT (imei, alarm_type, alarm_time) DO NOTHING
                        """, (
                            a.get("imei"), alarm_type, alarm_name, alarm_time,
                            lng, lat, lng, lat, lat, lng,
                            clean_num(a.get("speed")), clean(a.get("accStatus"))
                        ))
                        cur.execute("RELEASE SAVEPOINT sp")
                        inserted += cur.rowcount
                    except Exception:
                        cur.execute("ROLLBACK TO SAVEPOINT sp")
                        log.warning("Failed to process alarm for %s", a.get("imei"), exc_info=True)

            log_ingestion(cur, "jimi.device.alarm.list", len(imeis), 0, inserted,
                          int((time.time()-t0)*1000), True)

    log.info("Alarms: %d new events inserted.", inserted)

# ── Main Loop ─────────────────────────────────────────────────────────────────

def main():
    log.info("Starting EVENTS PIPELINE (v2.1)...")
    # OBD removed: Data arrives via webhook push (/pushobd), not polling.

    # Startup catch-up
    safe_task(poll_alarms, log)()

    # Schedule
    schedule.every(5).minutes.do(safe_task(poll_alarms, log))

    while True:
        schedule.run_pending()
        time.sleep(1)

if __name__ == "__main__":
    main()