feat: Complete the logic of the basic file conversion method.

src/ZonyLrcTools.Cli/Commands/ToolCommand.cs

@@ -10,13 +10,11 @@ using Serilog;
 using Serilog.Events;
 using ZonyLrcTools.Cli.Infrastructure.DependencyInject;
 using ZonyLrcTools.Cli.Infrastructure.Exceptions;
-using ZonyLrcTools.Cli.Infrastructure.Extensions;
 
 namespace ZonyLrcTools.Cli.Commands
 {
     [Command("lyric-tool")]
-    [Subcommand(typeof(ScanCommand),
+    [Subcommand(typeof(DownloadCommand),
-        typeof(DownloadCommand),
         typeof(UtilityCommand))]
     public class ToolCommand : ToolCommandBase
     {

src/ZonyLrcTools.Cli/Commands/UtilityCommand.cs

@@ -1,17 +1,64 @@
+using System.ComponentModel.DataAnnotations;
+using System.IO;
+using System.Linq;
 using System.Threading.Tasks;
 using McMaster.Extensions.CommandLineUtils;
+using ZonyLrcTools.Cli.Infrastructure.IO;
+using ZonyLrcTools.Cli.Infrastructure.Threading;
 
 namespace ZonyLrcTools.Cli.Commands
 {
+    public enum SupportFileType
+    {
+        Ncm = 1,
+        Qcm = 2
+    }
+
     /// <summary>
     /// 工具类相关命令。
     /// </summary>
     [Command("util", Description = "提供常用的工具类功能。")]
     public class UtilityCommand : ToolCommandBase
     {
-        protected override Task<int> OnExecuteAsync(CommandLineApplication app)
+        [Required(ErrorMessage = "音乐格式为必须参数，请指定 -t 参数。")]
+        [Option("-t|--type", CommandOptionType.SingleValue, Description = "需要转换的文件格式，参数[Ncm、Qcm]。", ShowInHelpText = true)]
+        public SupportFileType Type { get; set; }
+
+        [Required(ErrorMessage = "文件路径为必须按参数，请传入有效路径。")]
+        [Argument(0, "Path", "指定需要转换的音乐文件路径，支持目录和文件路径。")]
+        public string Path { get; set; }
+
+        private readonly IFileScanner _fileScanner;
+
+        public UtilityCommand(IFileScanner fileScanner)
         {
-            return base.OnExecuteAsync(app);
+            _fileScanner = fileScanner;
+        }
+
+        protected override async Task<int> OnExecuteAsync(CommandLineApplication app)
+        {
+            if (Directory.Exists(Path))
+            {
+                var files = await _fileScanner.ScanAsync(Path, new[] {"*.ncm"});
+
+                var wrapTask = new WarpTask(4);
+                var tasks = files
+                    .SelectMany(f => f.FilePaths)
+                    .Select(path => wrapTask.RunAsync(() => Convert(path)));
+
+                await Task.WhenAll(tasks);
+            }
+            else if (File.Exists(Path))
+            {
+                await Convert(Path);
+            }
+
+            return 0;
+        }
+
+        private async Task Convert(string filePath)
+        {
+            await Task.CompletedTask;
         }
     }
 }