import webbrowser

import typer

from src.aws import mlflow as aws_mlflow
from src.commands.utils import CONFIG_OPT, CONSOLE, load_cfg

app = typer.Typer(help="Manage MLflow tracking server access")


@app.command(name="open")
def open_mlflow(config: str = CONFIG_OPT) -> None:
    """Open a presigned URL for the configured MLflow tracking server."""
    cfg = load_cfg(config)
    tracking_server_name = cfg.effective_mlflow_tracking_server_name
    if not tracking_server_name:
        CONSOLE.print("[red]MLflow is disabled in config.yaml.[/red]")
        raise typer.Exit(1)

    try:
        url = aws_mlflow.create_presigned_tracking_server_url(
            cfg.aws.region,
            cfg.aws.profile,
            tracking_server_name,
        )
    except Exception as e:
        CONSOLE.print("[yellow]Could not create a SageMaker MLflow UI URL.[/yellow]")
        CONSOLE.print(f"Tracking server: [cyan]{tracking_server_name}[/cyan]")
        CONSOLE.print(f"Reason: {e}")
        CONSOLE.print(
            "This command can create presigned URLs only for MLflow tracking servers managed by "
            "Amazon SageMaker. If this is an external MLflow server, open it with that server's own URL."
        )
        raise typer.Exit(1)

    CONSOLE.print(f"MLflow tracking server: [cyan]{tracking_server_name}[/cyan]")
    CONSOLE.print(f"MLflow UI: {url}")
    if webbrowser.open(url):
        CONSOLE.print("[green]✓[/green] Opened MLflow UI in your browser.")
    else:
        CONSOLE.print("[yellow]Could not open a browser automatically. Open the URL above manually.[/yellow]")