import sys
from configparser import ConfigParser
from pathlib import Path


def load_config(app, *files):
    config = ConfigParser()

    for file in files:
        file = Path(file)

        if not file.is_file():
            app.logger.critical(str(file) + " is missing")
            sys.exit(1)

        config.read(file)

    return config


def set_config(app):
    config = load_config(app, "secrets.ini", "settings.ini")
    secrets = config["Secrets"]
    settings = config["Settings"]

    app.config["SECRET_KEY"] = secrets["SECRET_KEY"]

    # SQLALCHEMY
    db_file = Path(settings["SQLITE_DB_PATH"])
    db_file.parent.mkdir(parents=True, exist_ok=True)
    app.config["SQLALCHEMY_DATABASE_URI"] = f"sqlite:///{db_file}"

    app.config["SQLALCHEMY_TRACK_MODIFICATIONS"] = False

    # Flask-Admin
    app.config["FLASK_ADMIN_FLUID_LAYOUT"] = True

    # Flask-Security
    # Enable features
    app.config["SECURITY_TRACKABLE"] = True

    # Explicitly disable features
    app.config["SECURITY_CONFIRMABLE"] = False
    app.config["SECURITY_REGISTERABLE"] = False
    app.config["SECURITY_RECOVERABLE"] = False
    app.config["SECURITY_PASSWORDLESS"] = False
    app.config["SECURITY_CHANGEABLE"] = False
    app.config["SECURITY_TWO_FACTOR"] = False
    app.config["SECURITY_UNIFIED_SIGNIN"] = False

    check_email_deliverability = settings.getboolean("CHECK_EMAIL_DELIVERABILITY", True)
    app.config["SECURITY_EMAIL_VALIDATOR_ARGS"] = {
        "check_deliverability": check_email_deliverability,
    }
    app.config["SECURITY_PASSWORD_SALT"] = secrets["SECURITY_PASSWORD_SALT"]
    app.config["SECURITY_PASSWORD_LENGTH_MIN"] = settings.getint("SECURITY_PASSWORD_LENGTH_MIN", 15)
    # TODO: app.config["SECURITY_LOGIN_USER_TEMPLATE"] =

    return settings