using System;
using UnityEngine;

namespace AibisDream
{
    public class AbsMobileObject : MonoBehaviour
    {
        [SerializeField] public MobileObjectData mobileObjectData;
        private Vector3 _initPos;

        public bool IsActive { get; private set; }
        public float ExistTime { get; private set; }
        public float Speed { get; private set; }
        public event Action<AbsMobileObject> OnDisposed;

        public virtual void Init()
        {
            transform.position += new Vector3(mobileObjectData.offset.x, mobileObjectData.offset.y, 0);
            _initPos = transform.position;
            gameObject.name = mobileObjectData.itemName;
            IsActive = true;
            Speed = RandomSpeed();
            gameObject.SetActive(true);
        }

        public void Init(MobileObjectData data)
        {
            mobileObjectData = data;
            Init();
        }

        protected string RandomSelectAddress()
        {
            return mobileObjectData.assetAddressArray[
                UnityEngine.Random.Range(0, mobileObjectData.assetAddressArray.Length)];
        }

        protected float RandomSpeed()
        {
            return UnityEngine.Random.Range(mobileObjectData.speed.x, mobileObjectData.speed.y);
        }

        public void Update()
        {
            // 移动
            if (IsActive)
            {
                var posDelta = mobileObjectData.direction.normalized * (Speed * Time.deltaTime);
                transform.position += new Vector3(posDelta.x, posDelta.y, 0);

                ExistTime += Time.deltaTime;

                if (IsReachEnd())
                {
                    Dispose();
                }
            }
        }

        private bool IsReachEnd()
        {
            if (mobileObjectData.isDistanceMode)
            {
                return mobileObjectData.existDistance <= Vector3.Distance(transform.position, _initPos);
            }

            return mobileObjectData.existTime <= ExistTime;
        }

        protected virtual void Dispose()
        {
            IsActive = false;
            ExistTime = 0;
            _initPos = default;
            mobileObjectData = default;
            gameObject.name = "Empty";
            gameObject.SetActive(false);
            // 回收
            OnDisposed?.Invoke(this);
            OnDisposed = null;
        }
    }
}