using System.Diagnostics;
using NativeFileDialogSharp;

namespace BangumiRenamer.Tools;

public static class FolderCloner
{
    public static void Run()
    {
        var result = Dialog.FolderPicker();
        if (!result.IsOk) return;
        var source = result.Path;
        
        result = Dialog.FolderPicker();
        if (!result.IsOk) return;
        var dest = Path.Combine(result.Path, Path.GetFileNameWithoutExtension(source));
        
        var finalDest = dest;
        int suffix = 1;
        while (Directory.Exists(finalDest))
        {
            finalDest = dest + suffix;
            ++suffix;
        }
        
        CloneStructureWithEmptyFiles(source, finalDest);
        Process.Start(new ProcessStartInfo
        {
            FileName = finalDest,
            UseShellExecute = true,
            Verb = "open"
        });
    }
    
    static void CloneStructureWithEmptyFiles(string source, string dest)
    {
        if (!Directory.Exists(source))
        {
            return;
        }
        if (Directory.Exists(dest))
        {
            return;
        }
        foreach (string subDirPath in Directory.GetDirectories(source, "*", SearchOption.AllDirectories))
        {
            string newSubDirPath = subDirPath.Replace(source, dest);
            Directory.CreateDirectory(newSubDirPath);
        }
        foreach (string filePath in Directory.GetFiles(source, "*", SearchOption.AllDirectories))
        {
            string newFilePath = filePath.Replace(source, dest);
            string directoryName = Path.GetDirectoryName(newFilePath);
            if (!Directory.Exists(directoryName))
            {
                Directory.CreateDirectory(directoryName);
            }
            try
            {
                using (File.Create(newFilePath)) { } 
            }
            catch (Exception ex)
            {
                Console.WriteLine($"创建文件失败 {newFilePath}: {ex.Message}");
            }
        }
    }
}