using System;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.Events;

namespace Entity
{
    public class Outline : MonoBehaviour
    {
        public GameObject body;
        public SpriteRenderer outlineRenderer;
        public CapsuleCollider2D outlineCollider;

        public Entity entity;

        private bool _select = false;

        public void Init()
        {
            var size = GetSize();
            outlineRenderer.size = size;
            outlineCollider.direction = size.x > size.y ? CapsuleDirection2D.Horizontal : CapsuleDirection2D.Vertical;
            outlineCollider.size = size;
        }

        public void Show()
        {
            outlineRenderer.enabled = true;
        }

        public void Hide()
        {
            outlineRenderer.enabled = false;
        }

        /// <summary>
        /// 获取指定对象及其所有子对象组成的图像的大小。
        /// </summary>
        /// <returns>
        /// 返回一个 Vector3 对象，表示对象在世界空间中的总大小（宽度、高度、深度）。
        /// 如果没有找到任何渲染器，则返回 (-1, -1, -1) 表示无效大小。
        /// </returns>
        public Vector3 GetSize()
        {
            var renderers = body.GetComponentsInChildren<Renderer>();

            if (renderers.Length == 0)
            {
                return new(-1, -1);
            }

            var totalBounds = renderers[0].bounds;
            for (var i = 1; i < renderers.Length; i++)
            {
                totalBounds.Encapsulate(renderers[i].bounds);
            }

            var size = totalBounds.size;
            return size;
        }

        private void OnMouseEnter()
        {
            Show();
            _select = true;
        }

        private void OnMouseExit()
        {
            Hide();
            _select = false;
        }

        private void OnMouseOver()
        {
            // 检测是否按下的是鼠标右键
            if (Input.GetMouseButtonDown(1)) // 鼠标右键对应的是按钮索引 1
            {
                var rightMenu = Prefab.RightMenuPrefab.Instance;
                rightMenu.Init(GetMenu());
                rightMenu.transform.position=Input.mousePosition;
                rightMenu.Show();
            }
        }

        private List<(string name, UnityAction callback)> GetMenu()
        {
            var result = new List<(string name, UnityAction callback)>();
            if(entity.PlayerControlled)
                result.Add(("结束操控",()=>entity.PlayerControlled=false));
            else
                result.Add(("手动操控",()=>entity.PlayerControlled=true));
            result.Add(("杀死",()=>entity.Kill()));
            return result;
        }
    }
}