using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using BITKit;
using BITKit.Animations;
using BITKit.StateMachine;
using System.Linq;
using BITFALL.Player.Equip;
using Cinemachine;

namespace BITKit.Entities
{
    public interface IEquipBase : IEntryElement, IAwake, IStart, IUpdate
    {
        public const string _Equip = "Equip";
        string AddressablePath { get; }
        IEntity Entity { get; set; }
        void PlayAudio(string name);
    }
    public abstract class BITEquipBase<T> : StateBasedMonoBehaviour<T>, IEquipBase where T : IState
    {
        [Header(Constant.Header.Components)]
        public UnityAnimator animator;
        [Header(Constant.Header.InternalVariables)]
        protected IEntity entity;
        public IEntity Entity { get => entity; set => entity = value; }
        public virtual string AddressablePath => throw new System.NotImplementedException();
        public virtual void Entry() { }
        public virtual void Exit() { }
        public virtual void OnAwake() {Initialize();}
        public virtual void OnStart() { }
        public virtual void OnUpdate(float deltaTime) { }
        public virtual void PlayAudio(string eventName) { }
        public virtual void EquipEvent(string eventName){}
        public virtual void AnimationEvent(string eventName){}
    }
    [CustomType(typeof(IEquipService))]
    public class EntityEquipment : EntityComponent,IEquipService
    {
        public EntryGroup<IEquipBase> equips = new();
        public IOptional<float> Zoom { get; } = new Optional<float>(){Value = 1};
        
        public float InitialFov;

        [SerializeField] private CinemachineVirtualCamera virtualCamera;
        protected IEquipBase entryComplete;
        private PlayerConfig playerConfig;
        public override void OnStart()
        {
            base.OnStart();
            equips.list = GetComponentsInChildren<IEquipBase>(true).ToList();
            foreach (var x in equips.list)
            {
                x.Entity = entity;
                x.OnAwake();
            }
            foreach (var x in equips.list)
            {
                x.OnStart();
            }
        }

        public override void OnUpdate(float deltaTime)
        {
            if (equips.TryGetEntried(out entryComplete))
            {
                entryComplete.OnUpdate(deltaTime);
            }
            
            var current = virtualCamera.m_Lens.FieldOfView;
            current= Mathf.Lerp(current,Zoom.Allow ? InitialFov / Zoom.Value : PlayerConfig.Singleton.Fov , deltaTime * 5);
            current = Mathf.Clamp(current, 10, PlayerConfig.Singleton.Fov);
            virtualCamera.m_Lens.FieldOfView = current;
        }

      
    }
}