using System.Collections.Generic;
using UnityEngine;
using System.Linq;
using BITKit.Animations;

namespace BITKit.Entities
{

    public sealed class EntityAnimator : EntityBehavior
    {
        [SerializeField] private UnityAnimator[] animators;
        [SerializeReference, SubclassSelector] private References[] animationKeyWords;
        [SerializeReference, SubclassSelector] private References _rootVelocity;
        [SerializeReference, SubclassSelector] private References[] boolParameters;
        [SerializeReference, SubclassSelector] private References[] floatParameters;
        private List<string> keyWords;
        public override void OnAwake()
        {
            keyWords = animationKeyWords.Select(x => x.Get()).ToList();
        }
        public override void OnStart()
        {
            UnityEntity.AddListener<string>(Constant.Animation.Play, Play);
        }

        private void Play(string animationName)
        {
            if (enabled is false) return;
            if (animationKeyWords.Length is 0 || keyWords.Contains(animationName))
            {
                animators.ForEach(x =>
                {
                    if (!x.isActiveAndEnabled) return;
                    x.Play(animationName);
                });
            }
        }
        public override void OnFixedUpdate(float deltaTime)
        {
            foreach (var boolPar in boolParameters)
            {
                animators.ForEach(x =>
               {
                   if (x.isActiveAndEnabled)
                       x.animator.SetBool(boolPar, UnityEntity.Get<bool>(boolPar));
               });
            }
            foreach (var floatPar in floatParameters)
            {
                animators.ForEach(x =>
               {
                   if (x.isActiveAndEnabled)
                       x.animator.SetFloat(floatPar, UnityEntity.Get<float>(floatPar));
               });
            }
        }

        private void OnAnimatorMove()
        {
            if (enabled is false) return;
            if (_rootVelocity is not null && UnityEntity is not null)
                UnityEntity.Set(_rootVelocity, animators[0].animator.velocity);
        }

        // ReSharper disable once UnusedMember.Local
        private void AnimationEvent(string eventName)
        {
            UnityEntity.Invoke(Constant.Animation.OnEvent, eventName);
        }
    }
}