#!/usr/bin/env python3
"""
CLI for managing recordings database.

Usage:
    python cli.py import-transcriptions /path/to/transcriptions --source phone
    python cli.py import-audio /path/to/audio --source portable
    python cli.py link-audio /path/to/audio
    python cli.py list [--source phone] [--limit 10]
    python cli.py stats
"""

import argparse
from pathlib import Path

import database
import importer


def cmd_import_transcriptions(args):
    """Import transcription JSON files."""
    database.init_db()

    path = Path(args.path)
    audio_path = Path(args.audio_path) if args.audio_path else None

    if path.is_file():
        result = importer.import_transcription_json(
            path,
            source_name=args.source,
            audio_base_path=audio_path,
        )
        print(f"{result['status']}: {result['message']}")
    else:
        result = importer.import_transcription_directory(
            path,
            source_name=args.source,
            audio_base_path=audio_path,
        )
        print(f"Import complete:")
        print(f"  Created: {result['created']}")
        print(f"  Already existed: {result['exists']}")
        print(f"  Errors: {result['errors']}")

        if args.verbose:
            for d in result['details']:
                print(f"  - {d['file']}: {d['status']}")


def cmd_import_audio(args):
    """Import audio files without transcriptions."""
    database.init_db()

    path = Path(args.path)

    if path.is_file():
        result = importer.import_audio_file(path, source_name=args.source)
        print(f"{result['status']}: {result['message']}")
    else:
        result = importer.import_audio_directory(path, source_name=args.source)
        print(f"Import complete:")
        print(f"  Created: {result['created']}")
        print(f"  Already existed: {result['exists']}")
        print(f"  Errors: {result['errors']}")


def cmd_link_audio(args):
    """Link audio files to existing transcription records."""
    database.init_db()

    path = Path(args.path)
    result = importer.link_audio_to_transcriptions(path)
    print(result['message'])


def cmd_list(args):
    """List recordings in database."""
    database.init_db()

    recordings = database.list_recordings(
        source_name=args.source,
        limit=args.limit,
    )

    if not recordings:
        print("No recordings found.")
        return

    print(f"{'ID':>4}  {'Source':<10}  {'Duration':>8}  {'Recorded':<20}  Filename")
    print("-" * 80)

    for r in recordings:
        duration = f"{r['duration']/60:.1f}m" if r['duration'] else "?"
        recorded = r['recorded_at'][:19] if r['recorded_at'] else "?"
        print(f"{r['id']:>4}  {r['source_name']:<10}  {duration:>8}  {recorded:<20}  {r['filename']}")


def cmd_stats(args):
    """Show database statistics."""
    database.init_db()

    total = database.get_recordings_count()
    sources = database.list_sources()

    print(f"Total recordings: {total}")
    print()
    print("By source:")
    for s in sources:
        hours = s['total_hours'] or 0
        print(f"  {s['source_name']}: {s['recording_count']} recordings, {hours:.1f} hours")


def main():
    parser = argparse.ArgumentParser(description="Recordings database CLI")
    subparsers = parser.add_subparsers(dest="command", required=True)

    # import-transcriptions
    p = subparsers.add_parser("import-transcriptions", help="Import transcription JSON files")
    p.add_argument("path", help="Path to JSON file or directory")
    p.add_argument("--source", "-s", default="phone", help="Source name (default: phone)")
    p.add_argument("--audio-path", "-a", help="Path to audio files")
    p.add_argument("--verbose", "-v", action="store_true")
    p.set_defaults(func=cmd_import_transcriptions)

    # import-audio
    p = subparsers.add_parser("import-audio", help="Import audio files")
    p.add_argument("path", help="Path to audio file or directory")
    p.add_argument("--source", "-s", required=True, help="Source name")
    p.set_defaults(func=cmd_import_audio)

    # link-audio
    p = subparsers.add_parser("link-audio", help="Link audio files to transcriptions")
    p.add_argument("path", help="Directory containing audio files")
    p.set_defaults(func=cmd_link_audio)

    # list
    p = subparsers.add_parser("list", help="List recordings")
    p.add_argument("--source", "-s", help="Filter by source")
    p.add_argument("--limit", "-n", type=int, default=20)
    p.set_defaults(func=cmd_list)

    # stats
    p = subparsers.add_parser("stats", help="Show statistics")
    p.set_defaults(func=cmd_stats)

    args = parser.parse_args()
    args.func(args)


if __name__ == "__main__":
    main()