namespace LhorionIOSSDK
{
#if UNITY_IOS
    using UnityEngine;
    using UnityEditor;
    using UnityEditor.Callbacks;
    using UnityEditor.iOS.Xcode;
    using System.IO;
    using UnityEditor.Build;
    using UnityEditor.Build.Reporting;
    using System;

    public class BuildPostprocessor : IPreprocessBuildWithReport
    {
        public int callbackOrder => 0;

        public void OnPreprocessBuild(BuildReport report)
        {
            CopyDlls();
        }
        private static void CopyDlls()
        {
            string cur = "Assets/LhorionSDK/StreamingAssets";
            string des = "Assets/StreamingAssets/LhorionSDK/";
            CheckDirectory(des);
            CopyDirctory(cur, des, "StreamingAssets");
            AssetDatabase.Refresh();
        }

        static public void CheckDirectory(string path)
        {
            var direct = Path.GetDirectoryName(path);
            if (!Directory.Exists(direct))
            {
                Directory.CreateDirectory(direct);
            }
        }
        public static void CopyDirctory(string sourceDirectory, string targetDirectory, string tag)
        {
            try
            {
                string[] fileList = Directory.GetFiles(sourceDirectory, "*", SearchOption.AllDirectories);
                foreach (string f in fileList)
                {
                    if (f.EndsWith(".meta"))
                    {
                        continue;
                    }
                    // Remove path from the file name.
                    string fName = f.Substring(sourceDirectory.Length + 1);

                    // Use the Path.Combine method to safely append the file name to the path.
                    // Will overwrite if the destination file already exists.
                    File.Copy(Path.Combine(sourceDirectory, fName), Path.Combine(targetDirectory, fName), true);
                    Debug.Log($"Copy [{tag}] {Path.Combine(sourceDirectory, fName)} => {Path.Combine(targetDirectory, fName)}");
                }
            }
            catch (Exception ex)
            {
                Debug.LogError($"拷贝文件夹:{sourceDirectory} To {targetDirectory} 出现异常：{ex.Message}");
            }
        }
        [PostProcessBuild]
        public static void OnPostprocessBuild(BuildTarget target, string pathToBuiltProject)
        {
            if (target == BuildTarget.iOS)
            {
                AddLibraryToXcodeProject(pathToBuiltProject);
            }
        }
        [PostProcessBuild]
        public static void OnPostprocessBuild2(BuildTarget target, string pathToBuiltProject)
        {
            if (target == BuildTarget.iOS)
            {
                AddTess(target, pathToBuiltProject);
            }
        }
        public static void AddTess(BuildTarget target, string pathToBuiltProject)
        {
            if (target != BuildTarget.iOS)
                return;

            string projPath = PBXProject.GetPBXProjectPath(pathToBuiltProject);
            PBXProject proj = new PBXProject();
            proj.ReadFromFile(projPath);

            string unityFrameworkTargetGuid = proj.GetUnityFrameworkTargetGuid();
#if UNITY_2019_3_OR_NEWER
            string targetGuid = proj.GetUnityMainTargetGuid(); // 或 GetUnityFrameworkTargetGuid 取决于需求
#else
            string targetGuid = proj.TargetGuidByName("Unity-iPhone");
#endif

            // 设置路径（Unity 工程中 Assets 的路径）
            string tesseractLibPath = "LhorionSDK/Plugins/iOS/tesseract/lib/";
            string fullLibPath = Path.Combine(Application.dataPath, tesseractLibPath);

            if (!Directory.Exists(fullLibPath))
            {
                UnityEngine.Debug.LogWarning($"Tesseract lib directory not found at: {fullLibPath}");
                return;
            }

            string destLibPath = Path.Combine(pathToBuiltProject, "TesseractLibs");
            Directory.CreateDirectory(destLibPath); // 确保目录存在

            string[] libFiles = Directory.GetFiles(fullLibPath, "*.a");
            if (libFiles.Length == 0)
            {
                UnityEngine.Debug.LogWarning($"No .a files found in Tesseract lib directory: {fullLibPath}");
                return;
            }

            foreach (string libFile in libFiles)
            {
                string fileName = Path.GetFileName(libFile);
                string dstFilePath = Path.Combine(destLibPath, fileName);

                File.Copy(libFile, dstFilePath, true); // 复制到 Xcode 工程路径

                string relativePathInProj = "TesseractLibs/" + fileName;
                string fileGuid = proj.AddFile(relativePathInProj, relativePathInProj, PBXSourceTree.Source);
                proj.AddFileToBuild(targetGuid, fileGuid);

                UnityEngine.Debug.Log($"Added Tesseract lib to Xcode project: {relativePathInProj}");
            }
            // 设置头文件搜索路径
            string libSearchPath = "$(SRCROOT)/TesseractLibs";
            proj.AddBuildProperty(targetGuid, "LIBRARY_SEARCH_PATHS", libSearchPath);
            proj.AddBuildProperty(unityFrameworkTargetGuid, "LIBRARY_SEARCH_PATHS", libSearchPath);

            proj.WriteToFile(projPath);
        }
        public static void AddLibraryToXcodeProject(string pathToBuiltProject)
        {
            // 获取 Xcode 项目路径
            string projectPath = PBXProject.GetPBXProjectPath(pathToBuiltProject);

            // 初始化 PBXProject
            PBXProject project = new PBXProject();
            project.ReadFromFile(projectPath);

            // 获取主 target GUID
#if UNITY_2019_3_OR_NEWER
            string targetGuid = project.GetUnityMainTargetGuid();
            string frameworkTargetGuid = project.GetUnityFrameworkTargetGuid();
#else
            string targetGuid = project.TargetGuidByName("Unity-iPhone");
            string frameworkTargetGuid = targetGuid;
#endif

            // 添加 libz.tbd 到 Link Binary With Libraries
            project.AddFrameworkToProject(frameworkTargetGuid, "libz.tbd", false);

            // ✅ 添加 -lz 到整个 Xcode 工程（project 层面）
            project.AddBuildProperty(project.ProjectGuid(), "OTHER_LDFLAGS", "-lz");

            // 如果你想确保 framework target 也有 -lz，可以额外加：
            project.AddBuildProperty(frameworkTargetGuid, "OTHER_LDFLAGS", "-lz");

            project.WriteToFile(projectPath);

            Debug.Log("✅ 成功将 libz.tbd 添加到工程，并将 -lz 设置在 project 和 framework target 上");
        }
    }
#endif
}