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

public class AssetBundleBuildTab : EditorWindowTabBase
{
    private BuildTarget _abBuildTarget = BuildTarget.StandaloneWindows64;
    private string _outputPath = "Builds/AB";
    private string _packageVersion;
    private bool _copyAfterBuild;
    private string _copyDestination;
    private ECompressOption _compressOption = ECompressOption.LZ4;
    private EFileNameStyle _fileNameStyle = EFileNameStyle.BundleName_HashName;
    private EBuildinFileCopyOption _copyOption = EBuildinFileCopyOption.ClearAndCopyByTags;
    private string _copyParams = "Launch";
    private bool _enableSharePack = true;
    private string _selectedEncryption;
    private string _selectedPackage;
    private List<string> _encryptionClasses;
    private List<string> _buildPackageNames;

    internal  override void OnEnable()
    {
        LoadEncryptionClasses();
        LoadBuildPackageNames();
        GeneratePackageVersion();
    }

    private void GeneratePackageVersion()
    {
        int totalMinutes = DateTime.Now.Hour * 60 + DateTime.Now.Minute;
        _packageVersion = DateTime.Now.ToString("yyyy-MM-dd") + "-" + totalMinutes;
    }

    private void LoadEncryptionClasses()
    {
        _encryptionClasses = AppDomain.CurrentDomain.GetAssemblies()
            .SelectMany(a => a.GetTypes())
            .Where(t => typeof(IEncryptionServices).IsAssignableFrom(t) && !t.IsAbstract)
            .Select(t => t.FullName)
            .ToList();
    }


    private void LoadBuildPackageNames()
    {
        _buildPackageNames = new List<string>();
        foreach (var package in AssetBundleCollectorSettingData.Setting.Packages)
        {
            _buildPackageNames.Add(package.PackageName);
        }
    }

    internal override void OnGUI()
    {
        base.OnGUI();
        DrawABBuildTab();
    }

    private void DrawABBuildTab()
    {
        EditorGUILayout.Space();
        EditorGUILayout.LabelField("AB包构建配置", EditorStyles.boldLabel);

        // 基本配置
        DrawBuildTarget(ref _abBuildTarget);
        DrawPathSelection("输出路径:", ref _outputPath);
        DrawPackageVersion();

        // 高级配置
        EditorGUILayout.Space();
        EditorGUILayout.LabelField("高级选项", EditorStyles.boldLabel);
        _compressOption = (ECompressOption)EditorGUILayout.EnumPopup("压缩方式:", _compressOption);
        _fileNameStyle = (EFileNameStyle)EditorGUILayout.EnumPopup("文件命名风格:", _fileNameStyle);
        _copyOption = (EBuildinFileCopyOption)EditorGUILayout.EnumPopup("内置文件拷贝选项:", _copyOption);
        _copyParams = EditorGUILayout.TextField("拷贝参数:", _copyParams);
        _enableSharePack = EditorGUILayout.Toggle("启用共享打包:", _enableSharePack);
        DrawEncryptionSelection();
        DrawPackageSelection();

        // 拷贝配置
        EditorGUILayout.Space();
        _copyAfterBuild = EditorGUILayout.BeginToggleGroup("构建后拷贝", _copyAfterBuild);
        DrawPathSelection("拷贝目标:", ref _copyDestination);
        EditorGUILayout.EndToggleGroup();

        // 操作按钮
        EditorGUILayout.Space();
        if (GUILayout.Button("构建AB包", GUILayout.Height(30)))
        {
            BuildABPackage();
        }

        if (GUILayout.Button("构建热更程序集", GUILayout.Height(30)))
        {
            BuildDLLCommand.BuildAndCopyDlls();
        }
    }

    private void DrawBuildTarget(ref BuildTarget target)
    {
        target = (BuildTarget)EditorGUILayout.EnumPopup("目标平台:", target);
    }

    private void DrawPackageVersion()
    {
        EditorGUILayout.BeginHorizontal();
        {
            _packageVersion = EditorGUILayout.TextField("版本号:", _packageVersion);
            if (GUILayout.Button("生成新版本", GUILayout.Width(100)))
            {
                GeneratePackageVersion();
            }
        }
        EditorGUILayout.EndHorizontal();
    }

    private void DrawEncryptionSelection()
    {
        if (_encryptionClasses == null || _encryptionClasses.Count == 0)
        {
            EditorGUILayout.HelpBox("未找到加密类实现", MessageType.Info);
            return;
        }

        int selectedIndex = Mathf.Max(0, _encryptionClasses.IndexOf(_selectedEncryption));
        selectedIndex = EditorGUILayout.Popup("加密方式:", selectedIndex, _encryptionClasses.ToArray());
        _selectedEncryption = _encryptionClasses[selectedIndex];
    }

    private void DrawPackageSelection()
    {
        if (_buildPackageNames == null || _buildPackageNames.Count == 0)
        {
            EditorGUILayout.HelpBox("未找到包", MessageType.Info);
            return;
        }

        int selectedIndex = Mathf.Max(0, _buildPackageNames.IndexOf(_selectedPackage));
        selectedIndex = EditorGUILayout.Popup("Package:", selectedIndex, _buildPackageNames.ToArray());
        _selectedPackage = _buildPackageNames[selectedIndex];
    }

    private void BuildABPackage()
    {
        try
        {
            var parameters = new ScriptableBuildParameters
            {
                BuildOutputRoot = _outputPath,
                BuildTarget = _abBuildTarget,
                PackageName = _selectedPackage,
                BuildBundleType = (int)EBuildBundleType.AssetBundle,
                BuildPipeline = EBuildPipeline.ScriptableBuildPipeline.ToString(),
                BuildinFileRoot = AssetBundleBuilderHelper.GetStreamingAssetsRoot(),
                PackageVersion = _packageVersion,
                CompressOption = _compressOption,
                FileNameStyle = _fileNameStyle,
                VerifyBuildingResult = true,
                ClearBuildCacheFiles = false,
                BuildinFileCopyOption = _copyOption,
                BuildinFileCopyParams = _copyParams,
                EnableSharePackRule = _enableSharePack,
                EncryptionServices = CreateEncryptionInstance()
            };

            ScriptableBuildPipeline pipeline = new ScriptableBuildPipeline();
            var report = pipeline.Run(parameters, true);

            if (report.Success)
            {
                BuildUpdateData(_packageVersion, _copyDestination);
                if (_copyAfterBuild && !string.IsNullOrEmpty(_copyDestination))
                {
                    CopyFiles(report.OutputPackageDirectory, _copyDestination);
                }

                EditorUtility.DisplayDialog("构建成功", $"AB包构建完成！\n输出目录: {report.OutputPackageDirectory}", "确定");
            }
            else
            {
                EditorUtility.DisplayDialog("构建失败", $"错误信息: {report.ErrorInfo}", "确定");
            }
        }
        catch (Exception e)
        {
            Debug.LogException(e);
        }
    }

    private void BuildUpdateData(string version, string outPath)
    {
        ResourcePatchData updateData = new ResourcePatchData()
        {
            Version = Application.version,
            BundleUrl = $"http://127.0.0.1:8081/res/{version}/",
            Notice = "Test Notice",
        };
        File.WriteAllText(Path.Combine(outPath, "UpdateData.json"), Newtonsoft.Json.JsonConvert.SerializeObject(updateData));
    }

    private void CopyFiles(string source, string destination)
    {
        try
        {
            if (!Directory.Exists(destination))
            {
                Directory.CreateDirectory(destination);
            }

            foreach (string file in Directory.GetFiles(source))
            {
                File.Copy(file, Path.Combine(destination, Path.GetFileName(file)), true);
            }

            Debug.Log($"文件拷贝完成: {source} -> {destination}");
        }
        catch (Exception e)
        {
            Debug.LogError($"文件拷贝失败: {e.Message}");
        }
    }

    private IEncryptionServices CreateEncryptionInstance()
    {
        if (string.IsNullOrEmpty(_selectedEncryption)) return null;

        var type = Type.GetType(_selectedEncryption);
        if (type != null)
        {
            return (IEncryptionServices)Activator.CreateInstance(type);
        }

        return null;
    }
}