import argparse
from pathlib import Path

from .core.utils import save_to_json
from .scraper import IAAIScraper


def build_parser() -> argparse.ArgumentParser:
    parser = argparse.ArgumentParser(description="Public IAAI scraper")
    subparsers = parser.add_subparsers(dest="command", required=True)

    init_db_parser = subparsers.add_parser("init-db", help="Create local DB tables")
    init_db_parser.add_argument("--output", default="iaai_db_init.json", help="Path to output JSON")

    listing_parser = subparsers.add_parser("collect-listing", help="Collect vehicle URLs from Vehiclelisting/Cars")
    listing_parser.add_argument("--make", default=None, help="Optional make filter")
    listing_parser.add_argument("--model", default=None, help="Optional model filter")
    listing_parser.add_argument("--output", default="iaai_listing_links.json", help="Path to output JSON")

    open_parser = subparsers.add_parser(
        "open-vehicle",
        help="Open a vehicle page in gentle mode and save only DOM-based hints",
    )
    open_parser.add_argument("vehicle_url", help="IAAI vehicle detail URL")
    open_parser.add_argument("--output", default="iaai_vehicle_opened.json", help="Path to output JSON")

    scrape_parser = subparsers.add_parser(
        "scrape-vehicle",
        help="Open a vehicle page and capture a limited set of likely useful JSON responses",
    )
    scrape_parser.add_argument("vehicle_url", help="IAAI vehicle detail URL")
    scrape_parser.add_argument("--output", default="iaai_vehicle_detail.json", help="Path to output JSON")

    export_parser = subparsers.add_parser(
        "export-db-json",
        help="Scrape a vehicle page and save only the DB-ready car record JSON",
    )
    export_parser.add_argument("vehicle_url", help="IAAI vehicle detail URL")
    export_parser.add_argument("--output", default="iaai_vehicle_db_record.json", help="Path to output JSON")

    sync_vehicle_parser = subparsers.add_parser("sync-vehicle", help="Scrape one vehicle and upsert it into the DB")
    sync_vehicle_parser.add_argument("vehicle_url", help="IAAI vehicle detail URL")
    sync_vehicle_parser.add_argument("--lane", default="iaai", help="Logical lane name for sync_runs")
    sync_vehicle_parser.add_argument("--output", default="iaai_sync_vehicle.json", help="Path to output JSON")

    sync_listing_parser = subparsers.add_parser(
        "sync-listing",
        help="Collect vehicle URLs from the Cars listing and sync them sequentially",
    )
    sync_listing_parser.add_argument("--make", default=None, help="Optional make filter")
    sync_listing_parser.add_argument("--model", default=None, help="Optional model filter")
    sync_listing_parser.add_argument("--lane", default="iaai_cars", help="Logical lane name for sync_runs")
    sync_listing_parser.add_argument("--output", default="iaai_sync_listing.json", help="Path to output JSON")

    daemon_parser = subparsers.add_parser(
        "run-daemon",
        help="Run the scraper in a loop, syncing vehicles every N minutes (default 60)",
    )
    daemon_parser.add_argument(
        "--interval", type=int, default=None,
        help="Override interval in minutes (default from IAAI_SCHEDULER_INTERVAL_MINUTES or 60)",
    )

    return parser


def main() -> None:
    parser = build_parser()
    args = parser.parse_args()

    if args.command == "run-daemon":
        # daemon: бесконечный цикл
        from .core.config import Settings
        runtime_settings = Settings()
        if args.interval is not None:
            runtime_settings.scheduler_interval_minutes = args.interval
        with IAAIScraper(runtime_settings) as scraper:
            scraper.persistence.create_tables()
            scraper.run_scheduled()
        return

    # одноразовый запуск
    with IAAIScraper() as scraper:
        if args.command == "init-db":
            data = scraper.init_db()
        elif args.command == "collect-listing":
            data = scraper.collect_listing(make=args.make, model=args.model)
        elif args.command == "open-vehicle":
            data = scraper.open_vehicle_page(args.vehicle_url)
        elif args.command == "scrape-vehicle":
            data = scraper.scrape_vehicle_detail(args.vehicle_url)
        elif args.command == "export-db-json":
            data = scraper.scrape_vehicle_detail(args.vehicle_url).get("db_record", {})
        elif args.command == "sync-vehicle":
            data = scraper.sync_vehicle(args.vehicle_url, lane=args.lane)
        else:
            data = scraper.sync_listing(make=args.make, model=args.model, lane=args.lane)

        save_to_json(data, Path(args.output))
        print(f"Saved result to {Path(args.output).resolve()}")


if __name__ == "__main__":
    main()