using System;
using Cysharp.Threading.Tasks;
using HighlightPlus;
using RebootKit.Engine.Simulation;
using UnityEngine;
using UnityEngine.Events;
using Logger = RebootKit.Engine.Foundation.Logger;

namespace RebootReality.jelycho.Actors {
    public class ButtonActor : Actor, IInteractable {
        static readonly Logger s_Logger = new Logger(nameof(ButtonActor));

        [SerializeField] Transform m_Graphics;
        [SerializeField] float m_CooldownDuration = 0.5f;
        [SerializeField] HighlightEffect m_HighlightEffect;
        
        DateTime m_LastPressTime;

        public UnityEvent pressed = new UnityEvent();

        //
        // @MARK: Unity callbacks
        //
        void Awake() {
            SetHighlight(false);
            m_LastPressTime = DateTime.MinValue;
        }
        
        //
        // @MARK: Actor
        //
        protected override IActorData CreateActorData() {
            return new NoActorData();
        }

        protected override void OnActorCommandServer(ulong senderID, ActorCommand actorCommand) {
            if (actorCommand.CommandID == (ushort) ButtonActorCommands.Press) {
                if (DateTime.UtcNow - m_LastPressTime < TimeSpan.FromSeconds(m_CooldownDuration)) {
                    return;
                }

                m_LastPressTime = DateTime.UtcNow;
                pressed?.Invoke();

                SendActorEvent((byte) ButtonActorEvents.Pressed);
            }
        }

        protected override void OnActorEventClient(ActorEvent actorEvent) {
            ButtonActorEvents buttonEvent = (ButtonActorEvents) actorEvent.EventID;

            switch (buttonEvent) {
            case ButtonActorEvents.Pressed: {
                PlayPressAnimation();
                break;
            }
            default:
                s_Logger.Error($"Unknown actor event: {actorEvent.EventID}");
                break;
            }
        }

        void PlayPressAnimation() {
            PressAsync().Forget();
        }

        async UniTask PressAsync() {
            m_Graphics.localScale = new Vector3(1, 0.1f, 1);
            await UniTask.Delay(TimeSpan.FromSeconds(m_CooldownDuration),
                                cancellationToken: destroyCancellationToken);
            m_Graphics.localScale = new Vector3(1, 1, 1);
        }
        
        // 
        // @MARK: IInteractable
        // 
        public void SetHighlight(bool highlight) {
            m_HighlightEffect.highlighted = highlight;
        }

        public void Interact() {
            SendActorCommand((byte) ButtonActorCommands.Press);
        }
    }

    public enum ButtonActorCommands : byte {
        None = 0x00,
        Press = 0x01,
    }

    public enum ButtonActorEvents : byte {
        None = 0x00,
        Pressed = 0x01,
    }
}