#if UNITY_IOS || UNITY_IPHONE
using System.Collections.Generic;
using System.IO;
using System.Linq;
using UnityEditor.XCodeEditor;
using PBXProject = UnityEditor.iOS.Xcode.PBXProject;

public abstract class PbxProjectSet
{
    // 需要特殊Flag的文件类型
    protected static readonly Dictionary<string ,string> compileFlagDict = new Dictionary<string, string>
    {
        { "OpenUDID.m", "-fno-objc-arc" }
    };
    
    protected static readonly string[] noBuildTypes =
    {
        ".h",
        ".entitlements"
    };

    protected static readonly string[] noRelativePathTypes =
    {
        ".framework",
        ".dylib",
        ".tbd",
        ".plist"
    };

    protected static readonly string[] noCopyTypes =
    {
        ".txt",
        ".mdown",
        ".DS_Store"
    };

    protected readonly PBXProject pbxProject;

    protected readonly string pbxProjectPath;
    protected readonly string projectGuid;
    private readonly string _releaseGuid;
    private readonly string _runningGuid;
    private readonly string _profilingGuid;
    private readonly string _debugGuid;
    
    protected readonly string sourcePath;
    protected readonly string targetPath;

    protected PbxProjectSet(string source, string target)
    {
        sourcePath = source.TrimEnd('/', '\\');
        targetPath = target.TrimEnd('/', '\\');
        pbxProjectPath = PBXProject.GetPBXProjectPath(target);
        pbxProject = new PBXProject();
        pbxProject.ReadFromFile(pbxProjectPath);
        projectGuid = pbxProject.TargetGuidByName(PBXProject.GetUnityTargetName());
        _debugGuid = pbxProject.BuildConfigByName(projectGuid, "Debug");
        _releaseGuid = pbxProject.BuildConfigByName(projectGuid, "Release");
        _profilingGuid = pbxProject.BuildConfigByName(projectGuid, "ReleaseForProfiling");
        _runningGuid = pbxProject.BuildConfigByName(projectGuid, "ReleaseForRunning");
    }

    protected void ModifyCodes()
    {
        // 刘海适配代码
        var src = @"_window         = [[UIWindow alloc] initWithFrame: [UIScreen mainScreen].bounds];";
        var dst = @"    CGRect winSize = [UIScreen mainScreen].bounds;
    if((winSize.size.height == 1125 && winSize.size.width == 2436)
        || (winSize.size.height == 2436 && winSize.size.width == 1125)
        || (winSize.size.height == 1242 && winSize.size.width == 2688)
        || (winSize.size.height == 2688 && winSize.size.width == 1242)
        || (winSize.size.height == 828 && winSize.size.width == 1792))
    {
        winSize.size.width -= 150;
        winSize.origin.x = 75;
    }
    _window = [[UIWindow alloc] initWithFrame: winSize];";
        var unityAppControllerPath = targetPath + "/Classes/UnityAppController.mm";
        var unityAppController = new XClassExt(unityAppControllerPath);
        unityAppController.Replace(src, dst);
        unityAppController.Dispose();
    }
    
    protected void AddDirectory(string directory, string projectDir)
    {
        AddDirectoryInternal(sourcePath.Open(directory), projectDir);
    }

    protected void AddFile(string filePath, string projectDir)
    {
        AddFileInternal(sourcePath.Open(filePath), projectDir);
    }

    protected void CopyFileOnly(string filePath, string projectDir)
    {
        CopyFileInternal(sourcePath.Open(filePath), projectDir);
    }
    
    private void AddDirectoryInternal(string directory, string projectDir)
    {
        if (Path.HasExtension(directory))
            AddFileInternal(directory, projectDir);
        else
        {
            var files = GetAllFiles(directory);
            foreach (var file in files)
                AddFileInternal(file, projectDir);
        }
    }
    
    // 注：苹果的垃圾玩意会把文件夹当文件一样加入，所以不能直接扫描文件，只能一层一层扫描路径
    private IEnumerable<string> GetAllFiles(string directory)
    {
        var result = new List<string>();
        foreach (var file in Directory.GetFiles(directory))
        {
            var extension = Path.GetExtension(file);
            if (!string.IsNullOrEmpty(extension) && !noCopyTypes.Contains(extension))
                result.Add(file);
        }
        var subDirs = Directory.GetDirectories(directory);
        foreach (var subDir in subDirs)
        {
            // 苹果的破文件夹形式的文件
            if (!string.IsNullOrEmpty(Path.GetExtension(subDir)))
                result.Add(subDir);
            else
                result.AddRange(GetAllFiles(subDir));
        }
        return result;
    }
    
    private void AddFileInternal(string filePath, string projectDir)
    {
        // 如果是.framework或者.bundle之类的垃圾玩意
        if (Directory.Exists(filePath))
        {
            var files = Directory.GetFiles(filePath, "*.*", SearchOption.AllDirectories);
            foreach (var file in files)
                CopyFileInternal(file, projectDir);
        }
        else
        {
            CopyFileInternal(filePath, projectDir);
        }
        var extension = Path.GetExtension(filePath);
        var path = filePath.Substring(sourcePath.Length + 1);
        if (!string.IsNullOrEmpty(projectDir))
            path = projectDir.Open(path);
        var fileName = Path.GetFileName(path);
        // Frameworks类单独使用特殊ProjectPath
        var projectPath = noRelativePathTypes.Contains(extension) ? fileName : path;
        var addFile = pbxProject.AddFile(path, projectPath);
        // 不需要编译的类型不添加编译
        if (!noBuildTypes.Contains(extension))
        {
            string compileFlags;
            if (compileFlagDict.TryGetValue(fileName, out compileFlags))
                pbxProject.AddFileToBuildWithFlags(projectGuid, addFile, compileFlags);
            else
                pbxProject.AddFileToBuild(projectGuid, addFile);
        }
    }

    private void CopyFileInternal(string filePath, string projectDir)
    {
        var relative = filePath.Substring(sourcePath.Length + 1);
        var target = targetPath.Open(projectDir).Open(relative);
        var dir = Path.GetDirectoryName(target);
        if (!Directory.Exists(dir))
            Directory.CreateDirectory(dir);
        File.Copy(filePath, target, true);
    }

    public abstract void Action();

    protected abstract void SetTargetConfig(string guid);

    protected void SetAllConfigs()
    {
        SetTargetConfig(_debugGuid);
        SetTargetConfig(_releaseGuid);
        SetTargetConfig(_runningGuid);
        SetTargetConfig(_profilingGuid);
    }
    
    protected void Save()
    {
        File.WriteAllText(pbxProjectPath, pbxProject.WriteToString());
    }
}
#endif