import webbrowser
import socket

import typer
import uvicorn

from led_platform.core.config import get_settings

app = typer.Typer(help="LED wall projection platform CLI.")


def _lan_base_url(port: int = 8000) -> str:
    try:
        with socket.socket(socket.AF_INET, socket.SOCK_DGRAM) as sock:
            sock.connect(("8.8.8.8", 80))
            host = sock.getsockname()[0]
    except OSError:
        host = "127.0.0.1"
    return f"http://{host}:{port}"


@app.command()
def serve(
    host: str = typer.Option(None, help="Bind host."),
    port: int = typer.Option(None, help="Bind port."),
    reload: bool = typer.Option(False, help="Enable uvicorn reload."),
) -> None:
    settings = get_settings()
    uvicorn.run(
        "led_platform.main:app",
        host=host or settings.app_host,
        port=port or settings.app_port,
        reload=reload,
    )


@app.command()
def urls(
    base: str = typer.Option(None, help="Controller base URL."),
) -> None:
    base = base or _lan_base_url()
    typer.echo(f"Admin:       {base}/")
    typer.echo(f"Left output: {base}/output/left")
    typer.echo(f"Right output:{base}/output/right")
    typer.echo(f"Health:      {base}/healthz")
    typer.echo(f"Sync:        {base}/api/sync/status")


@app.command()
def open(
    base: str = typer.Option("http://127.0.0.1:8000", help="Controller base URL."),
    target: str = typer.Option("admin", help="admin, left, right, sync"),
) -> None:
    targets = {
        "admin": f"{base}/",
        "left": f"{base}/output/left",
        "right": f"{base}/output/right",
        "sync": f"{base}/api/sync/status",
    }
    url = targets.get(target)
    if not url:
        raise typer.BadParameter("target must be one of: admin, left, right, sync")
    webbrowser.open(url)
    typer.echo(url)


if __name__ == "__main__":
    app()