[未测试] 添加Tag帮助类方法

src/Models/Db.cs

@@ -48,7 +48,7 @@ namespace iFileProxy.Models
 
         [JsonProperty("tag")]
         [JsonPropertyName("tag")]
-        public string Tag { get; set; }
+        public string Tag { get; set; } = string.Empty;
 
         [JsonProperty("queue_position")]
         [JsonPropertyName("queue_position")]
@@ -57,10 +57,53 @@ namespace iFileProxy.Models
         [System.Text.Json.Serialization.JsonIgnore]
         [Newtonsoft.Json.JsonIgnore]
         public Process Process { get; set; }
+
+        // Helper to get the tags as a list
+        private List<string> GetTagList()
+        {
+            return string.IsNullOrWhiteSpace(Tag) ? [] : [.. Tag.Split(';')];
+        }
+
+        // Add a new tag
+        public void AddTag(string tag)
+        {
+            var tags = GetTagList();
+            if (!tags.Contains(tag))
+            {
+                tags.Add(tag);
+                Tag = string.Join(";", tags);
+            }
+        }
+
+        // Remove a tag
+        public bool RemoveTag(string tag)
+        {
+            var tags = GetTagList();
+            if (tags.Remove(tag))
+            {
+                Tag = string.Join(";", tags);
+                return true;
+            }
+            return false;
+        }
+
+        // Find a tag
+        public bool FindTag(string tag)
+        {
+            return GetTagList().Contains(tag);
+        }
+
+        // Get all tags as a list
+        public List<string> GetTags()
+        {
+            return GetTagList();
+        }
     }
 
-    public class DbConfigName {
+
+    public class DbConfigName
+    {
         public static string iFileProxy = "iFileProxy_Db";
-    
+
     }
 }

src/Services/TaskManager.cs

@@ -146,7 +146,7 @@ namespace iFileProxy.Services
                     taskInfo.Status = TaskState.Cached;
                     taskInfo.Hash = r.Hash;
                     taskInfo.Size = r.Size;
-                    taskInfo.Tag = $"REDIRECT:{r.TaskId}";
+                    taskInfo.AddTag($"REDIRECT:{r.TaskId}");
                 }
             }