using System;
using System.Collections;
using System.Collections.Generic;
using Ichni.RhythmGame.Beatmap;
using Sirenix.OdinInspector;
using UnityEngine;

namespace Ichni.RhythmGame
{
    public abstract partial class GameElement : SerializedMonoBehaviour, IBaseElement, IComparable<GameElement>
    {
        #region [属性和标记] Essential & Tracking Info
        //物体名
        public string elementName;

        //标识 GUID
        public Guid elementGuid;

        //标签
        public List<string> tags;

        //物理层级优先级
        public virtual int HierarchyPriority => 0;

        //存档类
        public BaseElement_BM matchedBM { get; set; }
        #endregion

        #region [层级从属结构] Hierarchy & Children
        //父游戏物体
        public GameElement parentElement;

        //子物体列表
        public List<GameElement> childElementList = new List<GameElement>();
        #endregion

        #region [附着子模块集] Components List
        //次级模块
        public List<SubmoduleBase> submoduleList = new List<SubmoduleBase>();
        #endregion

        #region [生命周期与构造] Initialization
        /// <summary>
        /// 首次初始化
        /// </summary>
        /// <param name="name">物体名</param>
        public virtual void Initialize(string name, Guid elementGuid, List<string> tags,
            bool isFirstGenerated, GameElement parentElement)
        {
            this.elementName = name;
            this.elementGuid = elementGuid;
            this.tags = tags;
            GameManager.Instance.beatmapContainer.gameElementList.Add(this);
            submoduleList = new List<SubmoduleBase>();
            
            if (isFirstGenerated)
            {
                SetDefaultSubmodules();
            }
            
            SetParent(parentElement);
        }

        /// <summary>
        /// 设置次级模块
        /// </summary>
        public virtual void SetDefaultSubmodules()
        {

        }
        #endregion
        
        #region [生命周期：激活阶段] Lifecycle Events Extensions
        /// <summary>
        /// 在所有物体生成完毕后，执行的初始化方法
        /// </summary>
        public virtual void AfterInitialize()
        {
            matchedBM?.AfterExecute();
            
            if (this is IHaveTransformSubmodule transformSource)
            {
                transformSource.transformSubmodule.CheckAndRemoveObservers();
            }
            
            if(this is IHaveColorSubmodule colorSource)
            {
                colorSource.colorSubmodule.CheckAndRemoveObservers();
            }
        }

        public virtual void BeforeStart()
        {
            if (this is IHaveTransformSubmodule transformSource)
            {
                transformSource.UpdateTransform(false);
            }
            
            if (this is IHaveColorSubmodule colorSource)
            {
                colorSource.UpdateColor(false);
            }
            
            Refresh();
        }
        
        public virtual void WhenStart()
        {
            
        }
        #endregion

        #region [工具方法] Global Methods
        /// <summary>
        /// 设置父物体
        /// </summary>
        /// <param name="parentElement">父物体</param>
        public void SetParent(GameElement parentElement)
        {
            if (parentElement != null)
            {
                parentElement.childElementList.Add(this);
                this.parentElement = parentElement;
                transform.SetParent(parentElement.transform);
            }
        }
        
        public int CompareTo(GameElement other)
        {
            return HierarchyPriority.CompareTo(other.HierarchyPriority);
        }
        #endregion
    }

    #region [额外交互及存档重写预留] Editor Interaction & Interfaces Overrides
    public abstract partial class GameElement //存档，删除，复制，粘贴
    {

        public virtual void Refresh()
        {
            
        }

        /// <summary>
        /// 当物体被删除时执行的方法
        /// </summary>
        public virtual void OnDelete()
        {

        }
    }
    #endregion

}