"""Click CLI for Gitea Runner Manager."""

from __future__ import annotations

import functools
import os
from collections.abc import Callable
from typing import Any

import click
from dotenv import load_dotenv  # pyright: ignore[reportMissingImports,reportUnknownVariableType]

from . import __version__
from .exceptions import GRMError
from .i18n import _
from .runner_manager import RunnerManager

load_dotenv(override=True)


def _runner_options(func: Callable[..., Any]) -> Callable[..., Any]:
    """Apply common override options for registry-based lifecycle commands."""
    func = click.option(
        "--ask-become-pass/--no-ask-become-pass",
        default=True,
        help=_("Prompt for sudo password (default)"),
    )(func)
    func = click.option("--key", "-k", help=_("Override SSH key from registry"))(func)
    func = click.option("--user", "-u", help=_("Override user from registry"))(func)
    func = click.option("--host", help=_("Override host from registry"))(func)
    return func


def _handle_errors(msg_key: str) -> Callable[[Callable[..., Any]], Callable[..., Any]]:
    """Convert GRMError into a Click exception with a translated message."""

    def decorator(func: Callable[..., Any]) -> Callable[..., Any]:
        @functools.wraps(func)
        def wrapper(*args: Any, **kwargs: Any) -> Any:
            try:
                return func(*args, **kwargs)
            except GRMError as e:
                raise click.ClickException(_(msg_key, error=e)) from e

        return wrapper

    return decorator


@click.group(help=_("Gitea Runner Manager — manage Gitea Actions runners."))
@click.version_option(version=__version__)
def cli() -> None:
    pass


@cli.command(help=_("Install and configure a Gitea Runner on a remote host."))
@click.argument("host")
@click.option(
    "--user",
    "-u",
    default=lambda: os.getenv("GITEA_RUNNER_USER", os.getlogin()),
    help=_("SSH user"),
)
@click.option("--key", "-k", default=lambda: os.getenv("GITEA_RUNNER_KEY"), help=_("Path to SSH private key"))
@click.option("--name", "-n", help=_("Gitea Runner name (default: host)"))
@click.option(
    "--token",
    "-t",
    default=lambda: os.getenv("GITEA_REGISTRATION_TOKEN"),
    help=_("Registration token (env: GITEA_REGISTRATION_TOKEN)"),
)
@click.option(
    "--url",
    default=lambda: os.getenv("GITEA_URL", ""),
    help=_("Gitea URL (env: GITEA_URL)"),
)
@click.option(
    "--admin-token",
    "-a",
    default=lambda: os.getenv("REPO_TOKEN"),
    help=_("Gitea admin API token for integration test (env: REPO_TOKEN)"),
)
@click.option(
    "--integration-retries",
    "-r",
    type=int,
    default=lambda: int(os.getenv("GITEA_INTEGRATION_RETRIES", "3")),
    help=_("Integration test API retries (default: 3, env: GITEA_INTEGRATION_RETRIES)"),
)
@click.option(
    "--labels",
    "-l",
    default=lambda: os.getenv("GITEA_RUNNER_LABELS", ""),
    help=_("Runner labels for Gitea Actions (env: GITEA_RUNNER_LABELS). Example: docker:docker://alpine:latest"),
)
@click.option(
    "--ask-become-pass/--no-ask-become-pass",
    default=True,
    help=_("Prompt for sudo password (default)"),
)
def install(
    host: str,
    user: str,
    key: str | None,
    name: str | None,
    token: str | None,
    url: str,
    admin_token: str | None,
    integration_retries: int,
    labels: str,
    ask_become_pass: bool,
) -> None:
    manager = RunnerManager()
    try:
        manager.install(
            host=host,
            user=user,
            key=key,
            name=name,
            token=token,
            gitea_url=url,
            admin_token=admin_token,
            integration_retries=integration_retries,
            labels=labels or None,
            ask_become_pass=ask_become_pass,
        )
    except GRMError as e:
        raise click.ClickException(_("Installation failed: {error}", error=e)) from e


@cli.command(help=_("Update the Gitea Runner binary on a remote host."))
@click.argument("host")
@click.option(
    "--user",
    "-u",
    default=lambda: os.getenv("GITEA_RUNNER_USER", os.getlogin()),
    help=_("SSH user"),
)
@click.option("--key", "-k", default=lambda: os.getenv("GITEA_RUNNER_KEY"), help=_("Path to SSH private key"))
@click.option("--version", "-v", help=_("Specific Gitea Runner version"))
@click.option(
    "--ask-become-pass/--no-ask-become-pass",
    default=True,
    help=_("Prompt for sudo password (default)"),
)
@_handle_errors("Update failed: {error}")
def update(
    host: str,
    user: str,
    key: str | None,
    version: str | None,
    ask_become_pass: bool,
) -> None:
    manager = RunnerManager()
    manager.update(
        host=host,
        user=user,
        key=key,
        version=version,
        ask_become_pass=ask_become_pass,
    )


@cli.command(help=_("Start a registered Gitea Runner."))
@click.argument("runner_name")
@_runner_options
@_handle_errors("Start failed: {error}")
def start(
    runner_name: str,
    host: str | None,
    user: str | None,
    key: str | None,
    ask_become_pass: bool,
) -> None:
    manager = RunnerManager()
    manager.start(
        name=runner_name,
        host=host,
        user=user,
        key=key,
        ask_become_pass=ask_become_pass,
    )


@cli.command(help=_("Stop a registered Gitea Runner."))
@click.argument("runner_name")
@_runner_options
@_handle_errors("Stop failed: {error}")
def stop(
    runner_name: str,
    host: str | None,
    user: str | None,
    key: str | None,
    ask_become_pass: bool,
) -> None:
    manager = RunnerManager()
    manager.stop(
        name=runner_name,
        host=host,
        user=user,
        key=key,
        ask_become_pass=ask_become_pass,
    )


@cli.command(help=_("Enable a registered Gitea Runner to start on boot."))
@click.argument("runner_name")
@_runner_options
@_handle_errors("Enable failed: {error}")
def enable(
    runner_name: str,
    host: str | None,
    user: str | None,
    key: str | None,
    ask_become_pass: bool,
) -> None:
    manager = RunnerManager()
    manager.enable(
        name=runner_name,
        host=host,
        user=user,
        key=key,
        ask_become_pass=ask_become_pass,
    )


@cli.command(help=_("Disable a registered Gitea Runner and deregister it."))
@click.argument("runner_name")
@_runner_options
@click.option(
    "--token",
    "-t",
    default=lambda: os.getenv("GITEA_REGISTRATION_TOKEN"),
    help=_("Registration token (env: GITEA_REGISTRATION_TOKEN)"),
)
@click.option(
    "--url",
    default=lambda: os.getenv("GITEA_URL", ""),
    help=_("Gitea URL (env: GITEA_URL)"),
)
@_handle_errors("Disable failed: {error}")
def disable(
    runner_name: str,
    host: str | None,
    user: str | None,
    key: str | None,
    token: str | None,
    url: str,
    ask_become_pass: bool,
) -> None:
    manager = RunnerManager()
    manager.disable(
        name=runner_name,
        host=host,
        user=user,
        key=key,
        token=token,
        gitea_url=url,
        ask_become_pass=ask_become_pass,
    )


@cli.command(help=_("Check the status of a registered Gitea Runner."))
@click.argument("runner_name")
@_runner_options
@_handle_errors("Status check failed: {error}")
def status(
    runner_name: str,
    host: str | None,
    user: str | None,
    key: str | None,
    ask_become_pass: bool,
) -> None:
    manager = RunnerManager()
    manager.status(
        name=runner_name,
        host=host,
        user=user,
        key=key,
        ask_become_pass=ask_become_pass,
    )


@cli.command(help=_("Remove a registered Gitea Runner completely."))
@click.argument("runner_name")
@_runner_options
@click.option(
    "--token",
    "-t",
    default=lambda: os.getenv("GITEA_REGISTRATION_TOKEN"),
    help=_("Registration token (env: GITEA_REGISTRATION_TOKEN)"),
)
@click.option(
    "--url",
    default=lambda: os.getenv("GITEA_URL", ""),
    help=_("Gitea URL (env: GITEA_URL)"),
)
@click.option(
    "--force",
    "-f",
    is_flag=True,
    help=_("Skip remote cleanup and only remove the local registry entry"),
)
@_handle_errors("Remove failed: {error}")
def remove(
    runner_name: str,
    host: str | None,
    user: str | None,
    key: str | None,
    token: str | None,
    url: str,
    force: bool,
    ask_become_pass: bool,
) -> None:
    manager = RunnerManager()
    manager.remove(
        name=runner_name,
        host=host,
        user=user,
        key=key,
        token=token,
        gitea_url=url,
        ask_become_pass=ask_become_pass,
        force=force,
    )


@cli.command(name="list", help=_("List all registered runners with live status."))
@_handle_errors("List failed: {error}")
def list_runners() -> None:
    manager = RunnerManager()
    runners = manager.list_runners()

    if not runners:
        click.echo(_("No runners registered. Use 'grm install' to add one."))
        return

    click.echo(f"{_('NAME'):<18} {_('HOST'):<16} {_('USER'):<10} {_('LABELS'):<30} {_('STATUS')}")
    click.echo("-" * 90)
    for r in runners:
        click.echo(f"{r['name']:<18} {r['host']:<16} {r['user']:<10} {r['labels']:<30} {r['status']}")