using System;
using AibisDream.Framework;
using DG.Tweening;
using UnityEngine;

namespace AibisDream
{
    public class Gear : MonoBehaviour, IMoveable
    {
        [SerializeField] public float radius;
        [SerializeField] public Sprite gearSprite;
        
        private GearController gearController;
        private CircleCollider2D circleCollider;
        private SpriteRenderer spriteRenderer;

        public Shaft targetShaft;

        private void Awake()
        {
            circleCollider = GetComponent<CircleCollider2D>();
            spriteRenderer = GetComponent<SpriteRenderer>();
        }

        private void Start()
        {
            gearController = transform.parent.parent.GetComponent<GearController>();
            // 给齿轮赋值
            InitGearModel();
        }

        /// <summary>
        /// 设置齿轮信息
        /// </summary>
        public void InitGearModel()
        {
            // 给齿轮赋值
            spriteRenderer.sprite = gearSprite;
            circleCollider.radius = radius;

            spriteRenderer.size = new Vector2(radius * 2, radius * 2);
        }

        public void StartMove()
        {
            targetShaft?.PlugOutGear();
            transform.DOPause();
        }

        public void StopMove()
        {
            if (targetShaft)
            {
                transform.position = targetShaft.transform.position;
                targetShaft.PlugInGear(this);
            }
        }

        public void Move(Vector2 targetPos)
        {
            transform.position = targetPos;
            var tempShaft = gearController.CheckClosestShaft(transform.position, radius);
            if (!tempShaft) return;
            
            targetShaft = tempShaft;
            
            if (gearController.CheckGearSuitable(tempShaft, radius))
            {
                targetShaft = tempShaft;
            }
            else
            {
                return;
            }
        }

        private Shaft CheckTargetShaft()
        {
            var closestShaft = gearController.CheckClosestShaft(transform.position, radius);
            return closestShaft;
        }
    }
}