using System.Collections.Generic;
using System.IO;
using Fort23.Core;
using Fort23.Editor;
using Fort23.GameData;
using Fort23.Mono;
using Fort23.UTool;
using hirdParty.DownloadSystem;
using HybridCLR.Editor.Commands;
using UnityEditor;
using UnityEngine;

namespace HybridCLR.Editor
{
    public static class BuildAssetsCommand
    {
        [MenuItem("HybridCLR/打包dll到StreamingAssets")]
        public static void BuildAndCopyAOTHotUpdateDllsToStreamingAssets()
        {
            // var gameRuntimeConfig = Resources.Load<GameRuntimeConfig>("GameRuntimeConfig");

            var build = Application.streamingAssetsPath + "/Dll/";
            if (Directory.Exists(build))
            {
                Directory.Delete(build,true);
            }

            Directory.CreateDirectory(build);
            BuildAndCopyAOTHotUpdateDlls(build);
            var assetMd5Info = new AssetMD5Info(new List<MD5FileInfo>());
            var allBundles = Directory.GetFiles(build);
            foreach (var bundle in allBundles)
            {
                if (bundle.Contains(".dll.bytes"))
                {
                    MD5FileInfo md5Info = new MD5FileInfo();
                    md5Info.md5 = MD5Helper.FileMD5(bundle);

                    FileInfo fileInfo = new FileInfo(bundle);
                    md5Info.size = fileInfo.Length;
                    md5Info.fileName = Path.GetFileName(bundle);
                    assetMd5Info.fileInfo.Add(md5Info);
                }
            }

            var md5Json = JsonHelper.ToJson(assetMd5Info);
            File.WriteAllText(build + "DllMD5.txt", md5Json);
            LogTool.Log("MD5文件生成完成");
            PlatformType platformType;
#if UNITY_ANDROID
            platformType = PlatformType.Android;
#elif UNITY_IOS
			platformType = PlatformType.IOS;
#elif UNITY_STANDALONE_WIN
            platformType = PlatformType.PC;
#elif UNITY_STANDALONE_OSX
			platformType = PlatformType.MacOS;
#else
			platformType = PlatformType.None;
#endif
           // var build = Application.streamingAssetsPath;
            BuildAndCopyAOTHotUpdateDlls(build);
            AssetDatabase.SaveAssets();
            AssetDatabase.Refresh();
        }

        [MenuItem("HybridCLR/打包dll到专门文件夹")]
        public static void BuildAndCopyAOTHotUpdateDllsToSpecialFolder()
        {
            var gameRuntimeConfig = Resources.Load<GameRuntimeConfig>("GameRuntimeConfig");
            PlatformType platformType;
#if UNITY_ANDROID
            platformType = PlatformType.Android;
#elif UNITY_IOS
			platformType = PlatformType.IOS;
#elif UNITY_STANDALONE_WIN
            platformType = PlatformType.PC;
#elif UNITY_STANDALONE_OSX
			platformType = PlatformType.MacOS;
#else
			platformType = PlatformType.None;
#endif
            var build = string.Format(BuildEditor.buildDllFolder, platformType,
                $"{1}.{1}.{1}");
            BuildAndCopyAOTHotUpdateDlls(build);

            var assetMd5Info = new AssetMD5Info(new List<MD5FileInfo>());
            var allBundles = Directory.GetFiles(build);
            foreach (var bundle in allBundles)
            {
                if (bundle.Contains(".dll.bytes"))
                {
                    MD5FileInfo md5Info = new MD5FileInfo();
                    md5Info.md5 = MD5Helper.FileMD5(bundle);

                    FileInfo fileInfo = new FileInfo(bundle);
                    md5Info.size = fileInfo.Length;
                    md5Info.fileName = Path.GetFileName(bundle);
                    assetMd5Info.fileInfo.Add(md5Info);
                }
            }

            var md5Json = JsonHelper.ToJson(assetMd5Info);
            File.WriteAllText(build + "/DllMD5.txt", md5Json);
            LogTool.Log("MD5文件生成完成");
        }

        public static void BuildAndCopyAOTHotUpdateDlls(string buildDstDir)
        {
            if (!Directory.Exists(buildDstDir))
            {
                Directory.CreateDirectory(buildDstDir);
            }

            CompileDllCommand.CompileDllActiveBuildTarget();
            CopyAOTAssembliesToStreamingAssets(buildDstDir);
            CopyHotUpdateAssembliesToStreamingAssets(buildDstDir);
        }

        /// <summary>
        /// 复制AOT的Assembly补充元数据到StreamingAssets（在LoadDll.AOTMetaAssemblyNames中设置的）
        /// </summary>
        private static void CopyAOTAssembliesToStreamingAssets(string aotAssembliesDstDir)
        {
            var target = EditorUserBuildSettings.activeBuildTarget;
            string aotAssembliesSrcDir = SettingsUtil.GetAssembliesPostIl2CppStripDir(target);
            foreach (var dll in SettingsUtil.HybridCLRSettings.patchAOTAssemblies)
            {
                string srcDllPath = $"{aotAssembliesSrcDir}/{dll}";
                if (!File.Exists(srcDllPath))
                {
                    Debug.LogError($"ab中添加AOT补充元数据dll:{srcDllPath} 时发生错误,文件不存在。" +
                                   "裁剪后的AOT dll在BuildPlayer时才能生成，因此需要你先构建一次游戏App后再打包。");
                    continue;
                }

                string dllBytesPath = $"{aotAssembliesDstDir}/{dll}.bytes";


                byte[] data = File.ReadAllBytes(srcDllPath);
                data = DllTool.KeyEncryption(data);
                File.WriteAllBytes(dllBytesPath, data);
                Debug.Log($"[CopyAOTAssembliesToStreamingAssets] copy AOT dll {srcDllPath} -> {dllBytesPath}");
            }
        }

        /// <summary>
        /// 复制热更的Dll到StreamingAssets, 在HybridCLR Setting中设置的。
        /// </summary>
        private static void CopyHotUpdateAssembliesToStreamingAssets(string hotfixAssembliesDstDir)
        {
            var target = EditorUserBuildSettings.activeBuildTarget;
            string hotfixDllSrcDir = SettingsUtil.GetHotUpdateDllsOutputDirByTarget(target);
            foreach (var dll in SettingsUtil.HotUpdateAssemblyFilesExcludePreserved)
            {
                string dllPath = $"{hotfixDllSrcDir}/{dll}";
                string dllBytesPath = $"{hotfixAssembliesDstDir}/{dll}.bytes";
                byte[] data = File.ReadAllBytes(dllPath);
                data = DllTool.KeyEncryption(data);
                File.WriteAllBytes(dllBytesPath, data);
                Debug.Log($"[CopyHotUpdateAssembliesToStreamingAssets] copy hotfix dll {dllPath} -> {dllBytesPath}");
            }
        }
    }
}