using System;

using System.Collections.Generic;

using System.Collections.ObjectModel;

using System.IO;

using System.Linq;

using System.Threading.Tasks;

namespace CodeGenerator.Utils

{

public static class MethodExtensions

{

/// <summary>

/// 递归遍历路径，得到所有文件

/// </summary>

/// <param name="path">路径一定是存在的，因为路径是系统Dialog返回的</param>

/// <param name="suffixes">后缀集合</param>

/// <returns></returns>

public static List<string> GetFilesBySuffix(this string path, HashSet<string> suffixes)

{

var result = new List<string>();

var directoryInfo = new DirectoryInfo(path);

foreach (var suffix in suffixes)

{

var files = directoryInfo.GetFiles($"{suffix}", SearchOption.AllDirectories);

result.AddRange(files.Select(file => file.FullName));

}

return result;

}

public static void TraverseFolder(this string path, ObservableCollection<FileInfo> result)

{

try

{

Parallel.ForEach(Directory.GetFiles(path), file => { result.Add(new FileInfo(file)); });

foreach (var dir in Directory.GetDirectories(path))

{

TraverseFolder(dir, result);

}

}

catch (Exception ex) when (ex is UnauthorizedAccessException || ex is IOException)

{

// 可选：记录无法访问的目录

Console.WriteLine($@"无法访问目录：{path}，原因：{ex.Message}");

}

}

public static bool IsNumber(this string value)

{

return int.TryParse(value, out _);

}

/// <summary>

/// List 转 ObservableCollection

/// </summary>

/// <param name="list"></param>

/// <returns></returns>

public static ObservableCollection<T> ToObservableCollection<T>(this List<T> list)

{

var collection = new ObservableCollection<T>();

foreach (var t in list)

{

collection.Add(t);

}

return collection;

}

}

}