using UnityEngine;

namespace Superlazy.UI
{
    [RequireComponent(typeof(Animator))]
    [RequireComponent(typeof(SLUIEntity))]
    public class SLUIAnimator : SLUIOnOffTransition
    {
        private bool animPlayed = false;

        public string onAnim;
        public string offAnim;

        private Animator anim;
        private int onHash;
        private int offHash;

        protected override void Validate()
        {
            anim = GetComponent<Animator>();
        }

        protected override void Init()
        {
            if (onAnim != string.Empty)
            {
                onHash = Animator.StringToHash(onAnim);
            }
            else
            {
                onHash = -1;
            }

            if (offAnim != string.Empty)
            {
                offHash = Animator.StringToHash(offAnim);
            }
            else
            {
                offHash = -1;
            }

            anim.Update(0.001f);
        }

        protected override bool OnUpdate(bool forceUpdate = false)
        {
            if (animPlayed)
            {
                if (anim.GetCurrentAnimatorStateInfo(0).normalizedTime <= 1.0f)
                {
                    return false;
                }
                else
                {
                    animPlayed = false;
                    return true;
                }
            }

            int animHash;
            if (currentState)
            {
                animHash = onHash;
            }
            else
            {
                animHash = offHash;
            }

            if (animHash != -1)
            {
                anim.Play(animHash, 0, 0);

                if (forceUpdate)
                {
                    anim.Update(0.001f);
                }

                animPlayed = true;

                return false;
            }
            else
            {
                return true;
            }
        }

        protected override void ForceDisable()
        {
            animPlayed = false;
        }
    }
}