Add download worker and download service

Models/DownloadItemData.cs

@@ -1,33 +1,55 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
+using Downloader;
 
 namespace DownloadManager.Models;
 public class DownloadItemData
 {
-    public required string FileName
+    public DownloadItemData(string fileName, string filePath, string url, DownloadConfiguration downloadConfig)
+    {
+        Id = Guid.NewGuid();
+        FileName = fileName;
+        FilePath = filePath;
+        Url = url;
+        downloadConfiguration = downloadConfig;
+    }
+
+    public Guid Id
+    {
+        get;
+    }
+
+    public string FileName
+    {
+        get;
+    }
+
+    public string FilePath
+    {
+        get;
+    }
+
+    public string Url
+    {
+        get;
+    }
+
+    public DownloadConfiguration downloadConfiguration
+    {
+        get;
+    }
+
+    public long FileSize
     {
         get; set;
     }
-    public required string Url
+    public double Speed
     {
         get; set;
     }
-    public required long FileSize
+    public int Progress
     {
         get; set;
     }
-    public required long Speed
-    {
-        get; set;
-    }
-    public required int Progress
-    {
-        get; set;
-    }
-    public required DownloadStatus Status
+    public DownloadStatus Status
     {
         get; set;
     }

Models/DownloadStatus.cs

@@ -1,14 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
-
-namespace DownloadManager.Models;
-public enum DownloadStatus
-{
-    Downloading,
-    Pausing,
-    Done,
-    Cancel
-}