"""
Demo Script: Live BMW Stock Crawling and Database Ingestion Prototype
"""
from __future__ import annotations

import logging
from sqlalchemy import select, func

from oem_crawler.crawlers.bmw.crawler import BMWStockCrawler
from oem_crawler.db.models import Vehicle, VehicleOption, VehiclePriceHistory
from oem_crawler.db.pipeline import StockIngestionPipeline

logging.basicConfig(level=logging.INFO, format="%(asctime)s [%(levelname)s] %(message)s")


def main():
    print("=" * 70)
    print("🚀 Initializing OEM Stock Crawler Prototype")
    print("=" * 70)

    pipeline = StockIngestionPipeline()
    crawler = BMWStockCrawler(market_country="DE")

    limit = 6
    print(f"\n📡 Crawling first {limit} live vehicles from BMW Neuwagensuche REST API...")
    stream = crawler.crawl(max_vehicles=limit, page_size=limit)

    crawl_run = pipeline.run_crawler_pipeline(
        brand="BMW",
        crawler_name="bmw-rest-crawler-v1",
        vehicle_stream=stream,
        market_country="DE",
        config_snapshot={"max_vehicles": limit, "is_full_market_scan": False},
    )

    print("\n" + "=" * 70)
    print(f"✅ Crawl Run Complete: {crawl_run.id}")
    print(f"   - Status: {crawl_run.status}")
    print(f"   - Duration: {crawl_run.duration_ms} ms")
    print(f"   - Discovered: {crawl_run.items_discovered}")
    print(f"   - Inserted:   {crawl_run.items_inserted}")
    print(f"   - Updated:    {crawl_run.items_updated}")
    print(f"   - Unmodified: {crawl_run.items_unmodified}")
    print("=" * 70)

    with pipeline.session_factory() as session:
        vehicles = session.scalars(select(Vehicle).limit(3)).all()
        print("\n🔍 Sample Stored Vehicles:")
        for v in vehicles:
            options_count = session.scalar(
                select(func.count(VehicleOption.id)).where(VehicleOption.vehicle_id == v.id)
            )
            print(f"   • [{v.brand}] {v.series} {v.model_name}")
            print(f"     Gross Price: {v.price_gross:,.2f} {v.currency} | Options: {options_count} items stored")
            print(f"     Dealer: {v.dealer_name or 'N/A'} ({v.location_city or 'N/A'})")
            print("-" * 60)


if __name__ == "__main__":
    main()