import click
from flask.cli import FlaskGroup, with_appcontext
from flaschengeist.app import create_app
from flaschengeist.config import configure_logger


def get_version(ctx, param, value):
    if not value or ctx.resilient_parsing:
        return

    import platform
    from werkzeug import __version__ as werkzeug_version
    from flask import __version__ as flask_version
    from flaschengeist import __version__

    click.echo(
        f"Python {platform.python_version()}\n"
        f"Flask {flask_version}\n"
        f"Werkzeug {werkzeug_version}\n"
        f"Flaschengeist {__version__}",
        color=ctx.color,
    )
    ctx.exit()


@with_appcontext
def verbosity(ctx, param, value):
    """Toggle verbosity between WARNING <-> DEBUG"""
    if not value or ctx.resilient_parsing:
        return
    configure_logger(cli=30 - max(0, min(value * 10, 20)))


@click.group(
    cls=FlaskGroup,
    add_version_option=False,
    add_default_commands=False,
    create_app=lambda: create_app(cli=30),
)
@click.option(
    "--version",
    help="Show the flask version",
    expose_value=False,
    callback=get_version,
    is_flag=True,
    is_eager=True,
)
@click.option(
    "--verbose",
    "-v",
    help="Increase logging level",
    callback=verbosity,
    count=True,
    expose_value=False,
)
def cli():
    """Management script for the Flaschengeist application."""
    pass


def main(*args, **kwargs):
    from .plugin_cmd import plugin
    from .export_cmd import export
    from .docs_cmd import docs
    from .run_cmd import run

    cli.add_command(plugin)
    cli.add_command(export)
    cli.add_command(docs)
    cli.add_command(run)
    cli(*args, **kwargs)