#!/usr/bin/env python

from waitress import serve
from flask import Flask
import argparse
import logging

from src.config import parse_config, DEFAULT_CONFIG, Config

logger = logging.getLogger(__name__)


def create_app(name: str, config: Config) -> Flask:
    logging.basicConfig(level=config.logging.level, format=('%(asctime)s %(levelname)s [%(name)s] %(message)s'))

    app = Flask(name)

    if config.host:
        app.config['SERVER_NAME'] = config.host

    return app


def main():
    parser = argparse.ArgumentParser('Cereal', description='run the Cereal server')
    parser.add_argument('--config', '-c', help='The path to the configuration file, expects JSON')
    args = parser.parse_args()
    config = parse_config(args.config) if args.config else DEFAULT_CONFIG
    app = create_app('Cereal', config)
    logger.info(str(config))
    serve(app, host='0.0.0.0' if config.host is None else config.host, port=config.port)


if __name__ == '__main__':
    main()