import argparse
from pathlib import Path

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


def build_parser() -> argparse.ArgumentParser:
    parser = argparse.ArgumentParser(description="IAAI scraper CLI")
    parser.add_argument("--headless", choices=["true", "false"], default=None, help="Override headless mode")
    parser.add_argument("--debug", action="store_true", help="Enable DEBUG logging")
    subparsers = parser.add_subparsers(dest="command", required=True)

    default_output_dir = Path("artifacts/json")

    subparsers.add_parser("init-db", help="Create DB tables")

    listing_parser = subparsers.add_parser("collect-listing", help="Collect vehicle URLs from listing page")
    listing_parser.add_argument("--make", default=None)
    listing_parser.add_argument("--model", default=None)
    listing_parser.add_argument("--output", default=str(default_output_dir / "iaai_listing_links.json"))

    scrape_parser = subparsers.add_parser("scrape-vehicle", help="Scrape a vehicle detail page")
    scrape_parser.add_argument("vehicle_url")
    scrape_parser.add_argument("--output", default=str(default_output_dir / "iaai_vehicle_detail.json"))

    sync_vehicle_parser = subparsers.add_parser("sync-vehicle", help="Scrape + upsert one vehicle")
    sync_vehicle_parser.add_argument("vehicle_url")
    sync_vehicle_parser.add_argument("--lane", default="iaai")
    sync_vehicle_parser.add_argument("--output", default=str(default_output_dir / "iaai_sync_vehicle.json"))

    sync_listing_parser = subparsers.add_parser("sync-listing", help="Collect listing + sync all vehicles")
    sync_listing_parser.add_argument("--make", default=None)
    sync_listing_parser.add_argument("--model", default=None)
    sync_listing_parser.add_argument("--lane", default="iaai_cars")
    sync_listing_parser.add_argument("--limit", type=int, default=None)
    sync_listing_parser.add_argument("--only-new", choices=["true", "false"], default=None)
    sync_listing_parser.add_argument("--output", default=str(default_output_dir / "iaai_sync_listing.json"))

    # Новые команды для ingestion pipeline
    subparsers.add_parser("discover-vehicles", help="Discover new vehicle URLs from sitemap")

    fetch_parser = subparsers.add_parser("fetch-pending", help="Fetch raw data for pending candidates")
    fetch_parser.add_argument("--limit", type=int, default=10, help="Max candidates to process")

    enrich_parser = subparsers.add_parser("enrich-snapshots", help="Parse and enrich raw snapshots")
    enrich_parser.add_argument("--limit", type=int, default=10, help="Max snapshots to process")

    subparsers.add_parser("run-pipeline", help="Run full ingestion pipeline (discover -> fetch -> enrich)")

    return parser


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

    runtime_settings: Settings | None = None
    if args.headless is not None or args.debug:
        runtime_settings = Settings()
        if args.headless is not None:
            runtime_settings.headless = args.headless == "true"
        if args.debug:
            runtime_settings.log_level = "DEBUG"

    with IAAIScraper(runtime_settings) as scraper:
        if args.command == "init-db":
            data = scraper.init_db()
            print(f"DB initialized: {data}")
            return
        elif args.command == "collect-listing":
            data = scraper.collect_listing(make=args.make, model=args.model)
        elif args.command == "scrape-vehicle":
            data = scraper.scrape_vehicle_detail(args.vehicle_url)
        elif args.command == "sync-vehicle":
            data = scraper.sync_vehicle(args.vehicle_url, lane=args.lane)
        elif args.command == "sync-listing":
            only_new = None if args.only_new is None else args.only_new == "true"
            data = scraper.sync_listing(
                make=args.make,
                model=args.model,
                lane=args.lane,
                limit=args.limit,
                only_new=only_new,
            )
        elif args.command == "discover-vehicles":
            from .discovery_service import DiscoveryService
            discovery = DiscoveryService()
            count = discovery.discover_new_vehicles()
            print(f"Discovered {count} new vehicle candidates")
            return
        elif args.command == "fetch-pending":
            from .fetch_service import FetchService
            fetch = FetchService()
            count = fetch.process_pending_candidates(limit=args.limit)
            print(f"Successfully fetched {count} candidates")
            return
        elif args.command == "enrich-snapshots":
            from .enrichment_service import EnrichmentService
            enrichment = EnrichmentService()
            count = enrichment.process_unparsed_snapshots(limit=args.limit)
            print(f"Successfully enriched {count} snapshots")
            return
        elif args.command == "run-pipeline":
            from .scheduler_service import SchedulerService
            scheduler = SchedulerService()
            scheduler.run_full_pipeline()
            print("Pipeline completed")
            return
        else:
            only_new = None if args.only_new is None else args.only_new == "true"
            data = scraper.sync_listing(
                make=args.make,
                model=args.model,
                lane=args.lane,
                limit=args.limit,
                only_new=only_new,
            )

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


if __name__ == "__main__":
    main()