"""CLI app."""

import logging
import asyncio
import sys
from typing import cast

import click
from pydantic import ValidationError
from .settings import ServerSettings
from .ssh_server import start_sshecret_sshd

LOG = logging.getLogger()

handler = logging.StreamHandler()
formatter = logging.Formatter(
    "%(created)f:%(levelname)s:%(name)s:%(module)s:%(message)s"
)

handler.setFormatter(formatter)
LOG.addHandler(handler)
LOG.setLevel(logging.INFO)


@click.group()
@click.option("--debug", is_flag=True)
@click.pass_context
def cli(ctx: click.Context, debug: bool) -> None:
    """Sshecret Admin."""
    if debug:
        LOG.setLevel(logging.DEBUG)
    try:
        settings = ServerSettings()  # pyright: ignore[reportCallIssue]
    except ValidationError as e:
        raise click.ClickException(
            "Error: One or more required environment options are missing."
        ) from e
    ctx.obj = settings


@cli.command("run")
@click.option("--host")
@click.option("--port", type=click.INT)
@click.pass_context
def cli_run(ctx: click.Context, host: str | None, port: int | None) -> None:
    """Run the server."""
    settings = cast(ServerSettings, ctx.obj)
    if host:
        settings.listen_address = host
    if port:
        settings.port = port

    loop = asyncio.new_event_loop()
    loop.run_until_complete(start_sshecret_sshd(settings))
    title = click.style("Sshecret SSH Daemon", fg="red", bold=True)
    click.echo(f"Starting {title}: {settings.listen_address}:{settings.port}")
    try:
        loop.run_forever()
    except KeyboardInterrupt:
        print("\nCtrl-C received. Exiting.")
        sys.exit()


if __name__ == "__main__":
    """Run CLI app."""
    cli()