"""Git utilities including proxy management."""

import subprocess

import click

from mycli.config import config


def _get_proxies():
    """Get git proxies from config."""
    return config.get_all_git_proxies()


@click.group(name="git")
def git_cmd():
    """Git utilities."""
    pass


@git_cmd.command("proxy")
@click.argument("name", required=False)
@click.option("--unset", "-u", is_flag=True, help="Unset proxy")
@click.option("--status", "-s", is_flag=True, help="Show current proxy status")
def proxy_cmd(name, unset, status):
    """Manage git proxy settings.

    Examples:
        mycli git proxy fastgithub    # Set fastgithub proxy
        mycli git proxy pandafan      # Set pandafan proxy
        mycli git proxy -u            # Unset proxy
        mycli git proxy -s            # Show status
    """
    if status or (not name and not unset):
        _show_status()
        return

    if unset:
        subprocess.run(["git", "config", "--global", "--unset", "http.proxy"], capture_output=True)
        subprocess.run(["git", "config", "--global", "--unset", "https.proxy"], capture_output=True)
        click.secho("Git proxy unset", fg="green")
        return

    proxies = _get_proxies()
    if name not in proxies:
        click.echo(f"Unknown proxy: {name}", err=True)
        click.echo(f"Available: {', '.join(proxies.keys())}", err=True)
        raise click.Exit(1)

    proxy_url = proxies[name]
    subprocess.run(["git", "config", "--global", "http.proxy", proxy_url], check=True)
    subprocess.run(["git", "config", "--global", "https.proxy", proxy_url], check=True)
    click.secho(f"Git proxy set to {name}: {proxy_url}", fg="green")


def _show_status():
    """Show current git proxy status."""
    result = subprocess.run(
        ["git", "config", "--global", "http.proxy"],
        capture_output=True,
        text=True,
    )
    http_proxy = result.stdout.strip() if result.returncode == 0 else "(not set)"

    result = subprocess.run(
        ["git", "config", "--global", "https.proxy"],
        capture_output=True,
        text=True,
    )
    https_proxy = result.stdout.strip() if result.returncode == 0 else "(not set)"

    # 检查当前设置的代理名称
    proxies = _get_proxies()
    current_name = None
    for proxy_name, url in proxies.items():
        if http_proxy == url:
            current_name = proxy_name
            break

    click.secho("Git proxy status:", fg="cyan")
    if current_name:
        click.echo(f"  Active: {current_name}")
    click.echo(f"  http.proxy:  {http_proxy}")
    click.echo(f"  https.proxy: {https_proxy}")

    click.secho("\nAvailable proxies:", fg="cyan")
    for proxy_name, url in proxies.items():
        marker = "*" if proxy_name == current_name else " "
        click.echo(f"  [{marker}] {proxy_name:12} {url}")


@git_cmd.command("proxy-list")
def proxy_list():
    """List available git proxies."""
    proxies = _get_proxies()
    click.secho("Available proxies:", fg="cyan")
    for name, url in proxies.items():
        click.echo(f"  {name:12} {url}")