using System.Collections.Generic;
using YooAsset.Editor;
using YooAsset;
using GFGGame;
using UnityEditor;
using System.IO;
using UnityEngine;

namespace GFGEditor
{
    public class PreloadAssetHelper
    {

        public static void CopyPreloadAssets()
        {
            // 等待资源构建流程完成
            //......
            string selectedFile =  EditorUtility.OpenFilePanel("Select a file", "", "");

            if(string.IsNullOrEmpty(selectedFile))
            {
                return;
            }
            int t = selectedFile.LastIndexOf("/");
            string dirPath = selectedFile.Substring(0, t);
            // 加载构建成功的资源清单对象
            byte[] manifestBytes = FileUtility.ReadAllBytes(selectedFile);
            PackageManifest manifest = ManifestTools.DeserializeFromBinary(manifestBytes);

            // 查找所有需要打进首包资源的依赖AB
            HashSet<PackageBundle> bundles = new HashSet<PackageBundle>();

            AssetBundlePreloadFiles assetBundlePreloadFiles = AssetBundlePreloadFiles.GetData();

            List<string> preloadFiles = new List<string>();
            preloadFiles.AddRange(assetBundlePreloadFiles.PreloadFiles);


            SqliteController.Instance.Init(false, null);
            StoryDialogCfg[] dataArray = StoryDialogCfgArray.Instance.dataArray;
            foreach(var cfg in dataArray)
            {
                if(!string.IsNullOrEmpty(cfg.bgRes))
                {
                    var resPath = ResPathUtil.GetSceneBgPath(cfg.bgRes);
                    preloadFiles.Add(resPath);
                    Debug.Log($"preload StoryDialogCfg cfg.bgRes {cfg.bgRes} resPath {resPath}");
                }
            }

            foreach (var assetPath in preloadFiles)
            {
                if (manifest.TryGetPackageAsset(assetPath, out PackageAsset packageAsset))
                {
                    var packageBundle = manifest.BundleList[packageAsset.BundleID];
                    if (bundles.Contains(packageBundle) == false)
                        bundles.Add(packageBundle);
                }
            }

            // 拷贝所有首包文件
            string root = $"{AssetBundleBuilderHelper.GetDefaultStreamingAssetsRoot()}/{VersionController.DefaultPackage}";
            foreach (var packageBundle in bundles)
            {
                string destPath = $"{root}/{packageBundle.FileName}";
                //...... //拷贝文件
                string sourcePath = $"{dirPath}/{packageBundle.FileName}";
                File.Copy(sourcePath, destPath, true);
                Debug.Log($"sourcePath { sourcePath}");
                Debug.Log($"destPath { destPath}");
            }
        }

    }
}