"""
Legal Templates CLI — command-line entry point for ingestion and search.

Extracted from legal_templates_ingestion.py to keep files under 500 LOC.

Usage:
    python legal_templates_cli.py --ingest-all
    python legal_templates_cli.py --ingest-source github-site-policy
    python legal_templates_cli.py --status
    python legal_templates_cli.py --search "Datenschutzerklaerung"

Lizenz: Apache 2.0
"""

import asyncio
import json

from template_sources import TEMPLATE_SOURCES, LicenseType
from legal_templates_ingestion import LegalTemplatesIngestion


async def main():
    """CLI entry point."""
    import argparse

    parser = argparse.ArgumentParser(description="Legal Templates Ingestion")
    parser.add_argument(
        "--ingest-all",
        action="store_true",
        help="Ingest all enabled sources"
    )
    parser.add_argument(
        "--ingest-source",
        type=str,
        metavar="NAME",
        help="Ingest a specific source by name"
    )
    parser.add_argument(
        "--ingest-license",
        type=str,
        choices=["cc0", "mit", "cc_by_4", "public_domain"],
        help="Ingest all sources of a specific license type"
    )
    parser.add_argument(
        "--max-priority",
        type=int,
        default=3,
        help="Maximum priority level to ingest (1=highest, 5=lowest)"
    )
    parser.add_argument(
        "--status",
        action="store_true",
        help="Show collection status"
    )
    parser.add_argument(
        "--search",
        type=str,
        metavar="QUERY",
        help="Test search query"
    )
    parser.add_argument(
        "--template-type",
        type=str,
        help="Filter search by template type"
    )
    parser.add_argument(
        "--language",
        type=str,
        help="Filter search by language"
    )
    parser.add_argument(
        "--reset",
        action="store_true",
        help="Reset (delete and recreate) the collection"
    )
    parser.add_argument(
        "--delete-source",
        type=str,
        metavar="NAME",
        help="Delete all chunks from a source"
    )

    args = parser.parse_args()

    ingestion = LegalTemplatesIngestion()

    try:
        if args.reset:
            ingestion.reset_collection()
            print("Collection reset successfully")

        elif args.delete_source:
            count = ingestion.delete_source(args.delete_source)
            print(f"Deleted {count} chunks from {args.delete_source}")

        elif args.status:
            status = ingestion.get_status()
            print(json.dumps(status, indent=2, default=str))

        elif args.ingest_all:
            print(f"Ingesting all sources (max priority: {args.max_priority})...")
            results = await ingestion.ingest_all(max_priority=args.max_priority)
            print("\nResults:")
            for name, status in results.items():
                print(f"  {name}: {status.chunks_indexed} chunks ({status.status})")
                if status.errors:
                    for error in status.errors:
                        print(f"    ERROR: {error}")
            total = sum(s.chunks_indexed for s in results.values())
            print(f"\nTotal: {total} chunks indexed")

        elif args.ingest_source:
            source = next(
                (s for s in TEMPLATE_SOURCES if s.name == args.ingest_source),
                None
            )
            if not source:
                print(f"Unknown source: {args.ingest_source}")
                print("Available sources:")
                for s in TEMPLATE_SOURCES:
                    print(f"  - {s.name}")
                return

            print(f"Ingesting: {source.name}")
            status = await ingestion.ingest_source(source)
            print(f"\nResult: {status.chunks_indexed} chunks ({status.status})")
            if status.errors:
                for error in status.errors:
                    print(f"  ERROR: {error}")

        elif args.ingest_license:
            license_type = LicenseType(args.ingest_license)
            print(f"Ingesting all {license_type.value} sources...")
            results = await ingestion.ingest_by_license(license_type)
            print("\nResults:")
            for name, status in results.items():
                print(f"  {name}: {status.chunks_indexed} chunks ({status.status})")

        elif args.search:
            print(f"Searching: {args.search}")
            results = await ingestion.search(
                args.search,
                template_type=args.template_type,
                language=args.language,
            )
            print(f"\nFound {len(results)} results:")
            for i, result in enumerate(results, 1):
                print(f"\n{i}. [{result['template_type']}] {result['document_title']}")
                print(f"   Score: {result['score']:.3f}")
                print(f"   License: {result['license_name']}")
                print(f"   Source: {result['source_name']}")
                print(f"   Language: {result['language']}")
                if result['attribution_required']:
                    print(f"   Attribution: {result['attribution_text']}")
                print(f"   Text: {result['text'][:200]}...")

        else:
            parser.print_help()

    finally:
        await ingestion.close()


if __name__ == "__main__":
    asyncio.run(main())