using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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using UnityEngine;
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using UnityFS;
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namespace HybridCLR.Editor.UnityBinFileReader
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{
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public class Dataunity3dPatcher
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{
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public void ApplyPatch(string dataunity3dFile, List<string> hotUpdateAssemblies)
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{
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var reader = new BundleFileReader();
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using (var fs = new EndianBinaryReader(new MemoryStream(File.ReadAllBytes(dataunity3dFile))))
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{
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reader.Load(fs);
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}
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var info = reader.CreateBundleFileInfo();
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//Debug.Log($"name:{info.signature} version:{info.version} files:{info.files.Count}");
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//foreach (var file in info.files)
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//{
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// Debug.Log($"file:{file.file} size:{file.data.Length}");
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//}
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var globalgamemanagersFile = info.files.Find(f => f.file == "globalgamemanagers");
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//Debug.LogFormat("gobalgamemanagers origin size:{0}", globalgamemanagersFile.data.Length);
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var ggdBinFile = new UnityBinFile();
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ggdBinFile.LoadFromStream(new MemoryStream(globalgamemanagersFile.data));
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ggdBinFile.AddScriptingAssemblies(hotUpdateAssemblies);
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byte[] patchedGlobalgamedatasBytes = ggdBinFile.CreatePatchedBytes();
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//Debug.LogFormat("gobalgamemanagers post patche size:{0}", patchedGlobalgamedatasBytes.Length);
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globalgamemanagersFile.data = patchedGlobalgamedatasBytes;
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var writer = new BundleFileWriter(info);
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var output = new MemoryStream();
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writer.Write(new EndianBinaryWriter(output));
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Debug.Log($"patch file:{dataunity3dFile} size:{output.Length}");
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//string bakFile = dataunity3dFile + ".bak";
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//if (!File.Exists(bakFile))
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//{
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// File.Copy(dataunity3dFile, bakFile);
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//}
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File.WriteAllBytes(dataunity3dFile, output.ToArray());
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}
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}
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}
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