import click
from pathlib import Path
import logging
from logging.handlers import RotatingFileHandler
import sys
from iottb.contexts import IottbConfig
from iottb.definitions import DB_NAME

logger = logging.getLogger(__name__)


@click.command()
@click.option('-d', '--dest', type=Path, help='Location to put (new) iottb database')
@click.option('--name', default=DB_NAME, type=str, help='Name of new database.')
@click.option('--update-default/--no-update-default', default=True, help='If new db should be set as the new default')
@click.pass_context
def init_db(ctx, dest, name, update_default):
    logger.info('init-db invoked')
    config = ctx.obj['CONFIG']
    logger.debug(f'str(config)')
    # Use the default path from config if dest is not provided
    known_dbs = config.get_known_databases()
    if name in known_dbs:
        click.echo(f'A database {name} already exists.')
        logger.info(f'Exiting...')
        exit()
    if not dest:
        logger.info('No dest set, choosing default destination.')
        dest = Path(config.default_path).parent

    db_path = dest / name
    logger.debug(f'Full path for db {db_path}')
    # Create the directory if it doesn't exist
    db_path.mkdir(parents=True, exist_ok=True)
    logger.info(f"Created directory {db_path.parent} for the database")

    # Update configuration
    config.set_database_location(name, str(db_path))
    if update_default:
        config.set_default_database(name, str(db_path))
    config.save_config()
    logger.info(f"Updated configuration with database {name} at {db_path}")