using System;
using Cysharp.Threading.Tasks;
using RebootKit.Engine.Foundation;
using RebootKit.Engine.Services.Console;
using UnityEngine;

namespace RebootKit.Engine.Services.Development {
    static class DebugCVars {
        public const string k_OverlayMode = "debug.mode";
    }

    public class DevToolsService : ServiceMonoBehaviour {
        [SerializeField] DebugOverlayView m_DebugOverlayView;

        [CVar(DebugCVars.k_OverlayMode, 1)] CVar m_OverlayMode;

        IDisposable m_CVarChangedListener;

        void OnEnable() {
            m_CVarChangedListener = RR.CVarChanged.Listen(OnCVarChanged);
            OnOverlayModeChanged(m_OverlayMode.IndexValue);
        }

        void OnDisable() {
            Dispose();
        }

        public override void Dispose() {
            m_CVarChangedListener.Dispose();
        }

        void OnOverlayModeChanged(int mode) {
            if (mode == 1) {
                m_DebugOverlayView.Show(destroyCancellationToken).Forget();
            } else {
                m_DebugOverlayView.Hide(destroyCancellationToken).Forget();
            }
        }

        void OnCVarChanged(string cvarName, CVarValue value) {
            if (cvarName == DebugCVars.k_OverlayMode) {
                OnOverlayModeChanged((int)value.numberValue);
            }
        }
    }
}