using UnityEngine;
using System;
using System.Collections.Generic;
using Ichni.Editor;
using Ichni.RhythmGame.Beatmap;

namespace Ichni.RhythmGame.ThemeBundles.Basic
{
    /// <summary>
    /// 自定义 2D 形状环境物体，支持从 AssetBundle 动态加载 Sprite，
    /// 并通过 ColorSubmodule 同步颜色。接入了 DirtyMark 集中刷新机制。
    /// </summary>
    public partial class Custom2DShape : EnvironmentObject
    {
        #region [暴露属性字段] Exposed Fields
        public List<string> themeBundleList = new List<string>();
        public List<string> spriteNameList = new List<string>();
        public string spriteThemeBundleName;
        public string spriteName = "None";
        public SpriteRenderer spriteRenderer;
        public override bool haveEmissionColor => true;

        #endregion
        
        #region [生命周期与工厂] Lifecycle & Factory
        public static Custom2DShape GenerateElement(string elementName, Guid id, List<string> tags,
            bool isFirstGenerated, string themeBundleName, string objectName, GameElement parentElement,
            bool isStatic, string spriteThemeBundleName, string spriteName)
        {
            // 通过 EnvironmentObject.GenerateElement 创建 GameObject 并获取组件
            Custom2DShape obj = EnvironmentObject.GenerateElement(elementName, id, tags,
                isFirstGenerated, themeBundleName, objectName, parentElement, isStatic).GetComponent<Custom2DShape>();
            obj.spriteThemeBundleName = spriteThemeBundleName;
            obj.spriteName = spriteName;
            return obj;
        }
        public override void FirstSetUpObject(bool isFirstGenerated)
        {
                spriteRenderer ??= GetComponentInChildren<SpriteRenderer>();
        }

        public override void AfterInitialize()
        {
            UpdateSprite();
            Refresh();
        }


        // 响应由 PropertyAnimation 触发的延迟刷新
        public override void OnDirtyRefresh(Dictionary<string, bool> flags)
        {
            Refresh();
        }
        #endregion
        #region [效果核心逻辑] Core Effect Logic
        /// <summary>
        /// 从当前 ThemeBundle 获取 Sprite 资源
        /// </summary>
        public void UpdateSprite()
        {
            if (spriteRenderer != null && !string.IsNullOrEmpty(spriteName) && spriteName != "None")
            {
                // 优先尝试直接获取 Sprite 资源（兼容老版或特殊包）
                Sprite sp = ThemeBundleManager.instance.GetObject<Sprite>(spriteThemeBundleName, spriteName);
                if (sp == null)
                {
                    // 如果没有找到 Sprite，则从 Texture2D 列表中获取并动态创建 Sprite
                    Texture2D tex = ThemeBundleManager.instance.GetObject<Texture2D>(spriteThemeBundleName, spriteName);
                    if (tex != null)
                    {
                        sp = Sprite.Create(tex, new Rect(0, 0, tex.width, tex.height), new Vector2(0.5f, 0.5f));
                    }
                }

                if (sp != null)
                {
                    spriteRenderer.sprite = sp;
                }
                else
                {
                    Debug.LogWarning($"[Custom2DShape] 无法在包 '{spriteThemeBundleName}' 中找到 Sprite/Texture: {spriteName}");
                }
            }
        }
        public override void Refresh()
        {
            // 同步 ColorSubmodule 的颜色状态
            base.Refresh();
            if (spriteRenderer != null)
            {
                spriteRenderer.color = colorSubmodule.currentBaseColor;
                if (colorSubmodule.emissionEnabled)
                {
                    // 如果启用了发光，尝试设置发光颜色（需要对应的 Shader 支持）
                    spriteRenderer.material.SetFloat("_EnableEmission", 1);
                    spriteRenderer.material.SetColor("_EmissionColor", colorSubmodule.GetCurrentEmissionColor());
                }
            }
        }
        #endregion
    }
}