"""Conference classes and functions."""

import configparser
import os
import typing
from datetime import date

import yaml

config_file_path = os.path.expanduser(
    os.path.join(
        os.getenv("XDG_CONFIG_HOME", "~/.config"), "conference-check", "config"
    )
)
assert os.path.exists(config_file_path)

config = configparser.ConfigParser()
config.read(os.path.expanduser(config_file_path))


class LiveConference(typing.TypedDict, total=False):
    """Live conference."""

    conference: str
    year: int
    live: date
    url: str | None


def load_yaml(name: str) -> typing.Any:
    """Load YAML."""
    filename = os.path.expanduser(config["data"][name])
    assert os.path.exists(filename)
    return yaml.safe_load(open(filename))