#!/usr/bin/env python3
"""Backfill Garmin gear for all users who have stored Garmin credentials.

Usage (on VPS):
    cd /opt/bincio
    uv run python3 scripts/backfill_garmin_gear.py --data-dir /var/bincio/data

    # Limit to specific users:
    uv run python3 scripts/backfill_garmin_gear.py --data-dir /var/bincio/data --users plagzo12
"""
from __future__ import annotations

import argparse
import sys
from pathlib import Path


def main() -> None:
    parser = argparse.ArgumentParser(description="Backfill Garmin gear for all users")
    parser.add_argument("--data-dir", required=True, type=Path, help="Root data directory")
    parser.add_argument("--users", nargs="*", help="Limit to these user handles (default: all)")
    args = parser.parse_args()

    data_dir: Path = args.data_dir.resolve()
    if not data_dir.is_dir():
        sys.exit(f"data-dir not found: {data_dir}")

    from bincio.extract.garmin_api import GarminError, has_credentials
    from bincio.extract.garmin_sync import import_garmin_gear

    candidates = (
        [data_dir / h for h in args.users]
        if args.users
        else sorted(p for p in data_dir.iterdir() if p.is_dir())
    )

    garmin_users = [p for p in candidates if has_credentials(p)]
    if not garmin_users:
        print("No users with Garmin credentials found.")
        return

    print(f"Found {len(garmin_users)} Garmin user(s): {[p.name for p in garmin_users]}\n")

    for user_dir in garmin_users:
        handle = user_dir.name
        print(f"[{handle}] importing gear...", flush=True)
        try:
            result = import_garmin_gear(data_dir, user_dir)
            print(
                f"[{handle}] done — "
                f"gear_added={result['gear_added']}, "
                f"activities_updated={result['activities_updated']}"
            )
        except GarminError as exc:
            print(f"[{handle}] Garmin error: {exc}")
        except Exception as exc:
            print(f"[{handle}] unexpected error: {type(exc).__name__}: {exc}")

    print("\nAll done. Run merge_all or trigger a rebuild to refresh the index shards.")


if __name__ == "__main__":
    main()