using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;

namespace ShotSimulator.Target
{
    public enum ReduceHealthTriggerType
    {
        None,       //不扣除
        OnHovering,     //悬停中
        OnClick,        //点击
    }
    public enum ReduceHealthType
    {
        Per,
        Time
    }

    public enum MotionType
    {
        None,
        Foreach,
        PingPong
    }

    public class SphereShotTarget : BaseShotTarget
    {
        #region Health
        private ReduceHealthTriggerType m_ReduceHealthTriggerType;

        private ReduceHealthType m_ReduceHealthType;

        private float maxHealth;
        private float curHealth;
        public float CurHealth
        {
            get { return curHealth; }
            set
            {
                curHealth = value;
                if (CurHealth > 1)
                {
                    healthBarImage.color = new Color(0, 1, 1);
                }
                else
                {
                    healthBarImage.color = Color.red;
                }
                healthBar.value = curHealth / maxHealth;
            }
        }

        [SerializeField]
        private Slider healthBar;
        public Image healthBarImage;
        private bool viewHealthBar;
        public bool ViewHealthBar
        {
            get { return viewHealthBar; }
            set
            {
                viewHealthBar = value;
                healthBar.gameObject.SetActive(viewHealthBar);
            }
        }
        #endregion

        #region Color
        [SerializeField]
        private MeshRenderer meshRenderer;
        [SerializeField]
        public Color defaultColor;
        [SerializeField]
        public Color onClickColor;
        [SerializeField]
        public Color onHoveringColor;
        public bool onClickCanChangeColor;
        public bool onHoveringCanChangeColor;
        #endregion

        #region Method
        public void Init(float maxHealth, ReduceHealthTriggerType rgtType, bool viewHealthBar, ReduceHealthType reduceHealthType, MotionType mType, Vector3 origin, List<Vector3> pos = null, float speed = 5)
        {
            this.maxHealth = maxHealth;
            CurHealth = this.maxHealth;
            m_ReduceHealthType = reduceHealthType;
            m_ReduceHealthTriggerType = rgtType;
            this.ViewHealthBar = viewHealthBar;
            m_MotionType = mType;
            gameObject.transform.position = origin;
            targetPositions.Clear();
            if (pos != null)
            {
                targetPositions.AddRange(pos);
            }
            //meshRenderer.material.SetColor("Color", defaultColor);
            meshRenderer.material.color = defaultColor;
            this.speed = speed;
        }
        private void TriggerReduceHealth(ReduceHealthTriggerType type)
        {
            if (type != ReduceHealthTriggerType.None && m_ReduceHealthTriggerType == type)
            {
                switch (m_ReduceHealthType)
                {
                    case ReduceHealthType.Per:
                        CurHealth--;
                        break;
                    case ReduceHealthType.Time:
                        CurHealth -= Time.deltaTime;
                        break;
                }
            }
        }
        #endregion

        #region Motion
        private MotionType m_MotionType;

        private List<Vector3> targetPositions = new List<Vector3>();

        public int curTargetPosIndex;

        private float speed;
        #endregion

        #region Interactive
        public override void OnClick()
        {
            if (!IsRunning) return;

            base.OnClick();

            if (onClickCanChangeColor)
            {
                meshRenderer.material.color = onClickColor;
            }
            //SoundManager.GetInstance().PlaySoundEffect("Audio/音效/aimlab击中音效3", false);
            TriggerReduceHealth(ReduceHealthTriggerType.OnClick);
        }

        public override void OnEnter()
        {
            if (!IsRunning) return;

            base.OnEnter();

            if (onHoveringCanChangeColor)
            {
                meshRenderer.material.color = onHoveringColor;
            }
        }

        public override void OnExit()
        {
            if (!IsRunning) return;

            base.OnExit();

            if (onHoveringCanChangeColor)
            {
                meshRenderer.material.color = defaultColor;
            }
        }

        public override void OnHovering()
        {
            if (!IsRunning) return;

            base.OnHovering();

            TriggerReduceHealth(ReduceHealthTriggerType.OnHovering);
        }
        #endregion

        #region Unity
        public override void FixedUpdate()
        {
            if (!IsRunning || m_MotionType == MotionType.None) return;

            base.FixedUpdate();

            PingPongUpdate();
        }
        private void PingPongUpdate()
        {
            float dis = Vector3.Distance(transform.position, targetPositions[curTargetPosIndex]);
            if (dis <= 0.01)
            {
                curTargetPosIndex++;
                if (curTargetPosIndex >= targetPositions.Count)
                {
                    curTargetPosIndex = 0;
                    targetPositions.Reverse();
                }
            }
            //transform.position = Vector3.Lerp(transform.position, targetPositions[curTargetPosIndex], speed * Time.deltaTime);
            transform.position = Vector3.MoveTowards(transform.position, targetPositions[curTargetPosIndex], speed * Time.fixedDeltaTime);
        }
        #endregion

        private void OnDestroy()
        {
            if (curHealth <= 0)
            {
                GameObject brokenObj = Instantiate(Resources.Load<GameObject>("Prefabs/Broken"), transform.position, transform.rotation);
                brokenObj.transform.localScale = meshRenderer.transform.localScale;
                brokenObj.GetComponent<SkinnedMeshRenderer>().material.color = defaultColor;
                Destroy(brokenObj, 7);
            }
        }
    }
}