"""DOLPHIN — EsoF (Esoteric Factors) Live Daemon
================================================
Long-running process that wraps EsotericFactorsService and streams its
5-second state snapshot to Hazelcast every `HZ_PUSH_INTERVAL_S` seconds.

Architecture (from ExF_EsoF_Complete_Specification.md):
  - Local astropy / math calculations — NO external APIs, NO rate limits
  - EsotericFactorsService polls at 5s; <1ms retrieval via get_latest()
  - 6-hour TTL cache for expensive astro computations (moon, mercury)
  - HZ key: DOLPHIN_FEATURES['esof_latest']
  - Local JSON cache: external_factors/eso_cache/latest_esoteric_factors.json
    (atomic tmp→rename write; legacy fallback for disk-readers)

Indicators pushed:
  moon_illumination, moon_phase_name, mercury_retrograde,
  population_weighted_hour, liquidity_weighted_hour, liquidity_session,
  market_cycle_position, fibonacci_time, calendar, regional_times,
  timestamp, unix

Usage:
  python prod/esof_update_flow.py           # run live
  python prod/esof_update_flow.py --poll 5  # override poll interval
"""

import sys
import json
import logging
import signal
import time
import argparse
from pathlib import Path
from datetime import datetime, timezone

HCM_DIR = Path(__file__).parent.parent
sys.path.insert(0, str(HCM_DIR / "external_factors"))
sys.path.insert(0, str(HCM_DIR))

logging.basicConfig(
    level=logging.INFO,
    format="%(asctime)s [%(levelname)s] %(name)s — %(message)s",
)
logger = logging.getLogger("esof_daemon")

# ── Constants ──────────────────────────────────────────────────────────────────
HZ_PUSH_INTERVAL_S = 5        # push to HZ every 5 s  (≤ scan resolution)
POLL_INTERVAL_S    = 5        # EsotericFactorsService internal poll
WARMUP_S           = 6        # wait for first compute cycle
HZ_KEY             = "esof_latest"
LOCAL_CACHE_DIR    = HCM_DIR / "external_factors" / "eso_cache"
LOCAL_CACHE_FILE   = LOCAL_CACHE_DIR / "latest_esoteric_factors.json"


def _write_local_cache(data: dict):
    """Atomic tmp→rename write to local JSON (legacy fallback)."""
    LOCAL_CACHE_DIR.mkdir(exist_ok=True)
    tmp = LOCAL_CACHE_DIR / "latest_esoteric_factors.tmp"
    try:
        with open(tmp, "w") as f:
            json.dump(data, f, indent=2)
        tmp.replace(LOCAL_CACHE_FILE)
    except Exception as e:
        logger.warning(f"Local cache write failed: {e}")


# ── Main daemon ────────────────────────────────────────────────────────────────

def run(poll_interval_s: float = POLL_INTERVAL_S):
    from esoteric_factors_service import EsotericFactorsService
    from prod._hz_push import make_hz_client, hz_push

    svc = EsotericFactorsService(poll_interval_s=poll_interval_s)
    svc.start()
    logger.info(f"EsotericFactorsService started (poll={poll_interval_s}s) — warmup {WARMUP_S}s …")
    time.sleep(WARMUP_S)

    # Connect HZ
    client = None
    def _connect():
        nonlocal client
        try:
            if client:
                try: client.shutdown()
                except: pass
            client = make_hz_client()
            logger.info("Hazelcast connected")
        except Exception as e:
            logger.warning(f"HZ connect failed: {e}")
            client = None

    _connect()

    # Graceful shutdown
    _running = [True]
    def _stop(signum, frame):
        logger.info("Shutdown signal — stopping EsoF daemon")
        _running[0] = False
    signal.signal(signal.SIGINT,  _stop)
    signal.signal(signal.SIGTERM, _stop)

    push_count = 0
    fail_count = 0

    logger.info(f"EsoF daemon live — pushing to HZ['{HZ_KEY}'] every {HZ_PUSH_INTERVAL_S}s")

    while _running[0]:
        t0 = time.monotonic()

        # Non-blocking <1ms read from in-memory state
        data = svc.get_latest()

        if data:
            # Write local JSON cache (legacy fallback for disk-readers)
            _write_local_cache(data)

            # Push to HZ
            if client is None:
                _connect()

            if client and hz_push(HZ_KEY, data, client):
                push_count += 1
                if push_count % 12 == 1:   # log every minute
                    logger.info(
                        f"EsoF push#{push_count}  "
                        f"moon={data.get('moon_phase_name')}  "
                        f"retro={data.get('mercury_retrograde')}  "
                        f"session={data.get('liquidity_session')}  "
                        f"cycle={data.get('market_cycle_position')}"
                    )
            else:
                fail_count += 1
                logger.warning(f"HZ push failed (total fails={fail_count}) — reconnecting")
                _connect()
        else:
            logger.debug("EsoF state empty — service still warming up")

        elapsed = time.monotonic() - t0
        time.sleep(max(0.0, HZ_PUSH_INTERVAL_S - elapsed))

    svc.stop()
    if client:
        try: client.shutdown()
        except: pass
    logger.info(f"EsoF daemon stopped. pushes={push_count} fails={fail_count}")


if __name__ == "__main__":
    parser = argparse.ArgumentParser(description="DOLPHIN EsoF live daemon")
    parser.add_argument("--poll", type=float, default=POLL_INTERVAL_S,
                        help=f"Internal poll interval for EsotericFactorsService (default {POLL_INTERVAL_S}s)")
    args = parser.parse_args()
    run(poll_interval_s=args.poll)