import sys
import logging
from argparse import ArgumentParser
from typing import cast
from pathlib import Path
import server
import config
import utils
import database


def GetUsernamePassword() -> tuple[str, str]:
    print("What is the first username of this calendar system?")
    cache = input()
    while not utils.IsValidUsername(cache):
        print("Sorry, invalid data. Please try again.")
        cache = input()
    username = cache

    print("Input this user password:")
    cache = input()
    while not utils.IsValidPassword(cache):
        print("Sorry, invalid data. Please try again.")
        cache = input()
    password = cache

    return (username, password)


def SetLoggingStyle(level: int) -> None:
    logging.basicConfig(format="[%(levelname)s] %(message)s", level=level)


if __name__ == "__main__":
    # Set as INFO level in default first,
    # and we will change it once we load the configuration file.
    SetLoggingStyle(logging.INFO)

    # Receive arguments
    parser = ArgumentParser(
        description="The server of light, self-host and multi-account calendar system."
    )
    parser.add_argument(
        "-c",
        "--config",
        required=True,
        type=Path,
        action="store",
        metavar="CONFIG_TOML",
        dest="config",
        help="The configuration file for coconut-leaf",
    )
    parser.add_argument(
        "-i",
        "--init",
        action="store_true",
        dest="init",
        help="Set for initialize the calendar system",
    )
    args = parser.parse_args()

    # Show splash
    logging.info("Coconut-leaf")
    logging.info("A light, self-host and multi-account calendar system")
    logging.info("Project: https://github.com/yyc12345/coconut-leaf")
    logging.info("===================")

    # Load config file
    try:
        config.setup_config(cast(Path, args.config))
    except Exception as e:
        logging.critical(f"Error loading config file: {e}")
        sys.exit(1)

    # Change logging level again according to whether enable debug mode
    logging_level = logging.DEBUG if config.get_config().others.debug else logging.INFO
    SetLoggingStyle(logging_level)

    # Initialize the calendar system if needed
    if cast(bool, args.init):
        gotten_data = GetUsernamePassword()
        calendar = database.CalendarDatabase()
        calendar.init(*gotten_data)
        calendar.close()

    logging.info("Staring server...")
    server.run()