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

namespace Engine.CLoader
{
    /// <summary>资源配置数据</summary>
    public class CLoaderConfig
    {

        #region 单利
        private static CLoaderConfig instance;
        /// <summary>单利对象</summary>
        public static CLoaderConfig GetInstance()
        {
            if (instance == null)
            {
                instance = new CLoaderConfig();
            }
            return instance;
        }
        #endregion

        /// <summary>全部资源的配置字典</summary>
        private Dictionary<string, CAssetsConfigInfo> dictAssetsConfigInfo = new Dictionary<string, CAssetsConfigInfo>();

        public void ReadConfig(UnityEngine.Object dataAssetsObj)
        {
            if (dataAssetsObj==null)
            {
                return;
            }

            UnityEngine.TextAsset textAsset = (UnityEngine.TextAsset)dataAssetsObj;
            CByteArray byteArr = new CByteArray(textAsset.bytes);

            int assetCount = byteArr.ReadInt();
            for (int i = 0; i < assetCount; i++)
            {

                CAssetsConfigInfo configInfo = new CAssetsConfigInfo();
                configInfo.assetsName = byteArr.ReadString() + CLoaderConst.AB_POSTFIX;
                
                configInfo.assetsVer = byteArr.ReadString();
                configInfo.assetsCatchLevel = (int)byteArr.ReadShort();
                configInfo.assetSize = byteArr.ReadLong();
                configInfo.assetDepCount = byteArr.ReadShort();
                
                for (short j = 0; j < configInfo.assetDepCount; j++)
                {
                    string depName = byteArr.ReadString();
                    if (!string.IsNullOrEmpty(depName))
                    {
                        configInfo.assetsDepNameList.Add(depName + CLoaderConst.AB_POSTFIX);
                    }
                }

                if (!dictAssetsConfigInfo.ContainsKey(configInfo.assetsName))
                    dictAssetsConfigInfo.Add(configInfo.assetsName, configInfo);
            }
        }

        /// <summary>得到某个资源的配置信息</summary>
        public CAssetsConfigInfo GetAssetsConfig(string assetsName)
        {
            if(dictAssetsConfigInfo.ContainsKey(assetsName))
            {
                return dictAssetsConfigInfo[assetsName];
            }
            else
            {
#if UNITY_EDITOR
                CDebug.LogError("有资源的配置信息是null:" + assetsName);
#endif
                return null;
            }
        }
    }
}