using Godot;
using SpacetimeDB;
using SpacetimeDB.Types;

public partial class ChatOptions : HBoxContainer
{
    public LineEdit Username { get; private set; }
    public ColorPickerButton ColorPicker { get; private set; }

    public override void _EnterTree()
    {
        Username = GetNode<LineEdit>("Username");
        ColorPicker = GetNode<ColorPickerButton>("ColorPicker");

        Username.TextSubmitted += OnUsernameInput;
        Username.FocusExited += ResetUsername;
    }

    public override void _Ready()
    {
        DbConnection conn = Spacetime.Instance.Connection;
        RegisterSubscriptions(conn);
    }

    string UserNameOrIdentity(User user)
    {
        return user != null ? user.Name ?? user.Identity.ToString()[..8] : "unknown";
    }

    void ResetUsername()
    {
        Username.Text = UserNameOrIdentity(Spacetime.Instance.Me);
    }

    void OnUsernameInput(string text)
    {
        Spacetime.Instance.Connection.Reducers.SetName(text);
    }

    void RegisterSubscriptions(DbConnection conn)
    {
        conn.Reducers.OnSetName += Reducer_OnSetNameEvent;
    }

    /// Our `OnSetNameEvent` callback: print a warning if the reducer failed.
    void Reducer_OnSetNameEvent(ReducerEventContext ctx, string name)
    {
        var e = ctx.Event;
        if (e.CallerIdentity != Spacetime.Instance.Identity)
        {
            //  Not me
            return;
        }
        if (e.Status is Status.Failed(var error))
        {
            GD.PrintErr($"Failed to change name to {name}: {error}");
            return;
        }
    }
}