#!/usr/bin/env python3
"""Sync unsynced subscribers from SQLite to the configured core network."""
import logging
import os
import sys

sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))

from server.core_adapters import get_adapter
from server.database import get_connection, list_unsynced, mark_synced
from server.utils import load_config

logging.basicConfig(level=logging.INFO, format="%(levelname)s %(message)s")
logger = logging.getLogger(__name__)


def main():
    config_path = os.environ.get("CONFIG_PATH", "config.yaml")
    cfg = load_config(config_path)

    adapter = get_adapter(cfg)
    if adapter is None:
        logger.error("No core adapter configured. Set core.type to 'open5gs' or 'free5gc' in config.")
        sys.exit(1)

    conn = get_connection(cfg["database"]["path"])
    unsynced = list_unsynced(conn)
    logger.info(f"Found {len(unsynced)} unsynced subscriber(s)")

    success = 0
    for sub in unsynced:
        try:
            adapter.add_subscriber(sub.imsi, sub.ki, sub.opc)
            mark_synced(conn, sub.imsi)
            success += 1
            logger.info(f"  Synced {sub.imsi}")
        except Exception as exc:
            logger.error(f"  Failed to sync {sub.imsi}: {exc}")

    conn.close()
    logger.info(f"Sync complete: {success}/{len(unsynced)} succeeded")


if __name__ == "__main__":
    main()