#!/usr/bin/env python3
"""Utility to register a manually generated ALS file in the MusiaIA project metadata store."""

import argparse
import json
import os
import uuid
from pathlib import Path

PROJECTS_DIR = Path('/home/ren/musia/output/projects')
PROJECTS_DIR.mkdir(parents=True, exist_ok=True)


def main():
    parser = argparse.ArgumentParser(description='Register an ALS project for the MusiaIA dashboard.')
    parser.add_argument('--user', required=True, help='User ID (must match the one used in the UI)')
    parser.add_argument('--name', required=True, help='Project name to display')
    parser.add_argument('--file', required=True, help='Path to the ALS file')
    parser.add_argument('--genre', default='Unknown', help='Genre label (optional)')
    parser.add_argument('--bpm', type=int, default=120, help='BPM value (optional)')
    parser.add_argument('--key', default='C', help='Key signature (optional)')
    parser.add_argument('--project-id', help='Optional custom project ID (otherwise auto)')
    args = parser.parse_args()

    file_path = Path(args.file).expanduser().resolve()
    if not file_path.exists():
        raise SystemExit(f'ALS file not found: {file_path}')

    project_id = args.project_id or str(uuid.uuid4())[:8]

    metadata = {
        'id': project_id,
        'user_id': args.user,
        'name': args.name,
        'genre': args.genre,
        'bpm': args.bpm,
        'key': args.key,
        'file_path': str(file_path),
        'download_url': f'/api/download/{project_id}'
    }

    metadata_path = PROJECTS_DIR / f'{project_id}.json'
    with open(metadata_path, 'w', encoding='utf-8') as fh:
        json.dump(metadata, fh)

    print(f'Registered {file_path} as project {project_id}')
    print(f'Metadata: {metadata_path}')


if __name__ == '__main__':
    main()