fix concurrent issue

ProjBobcat/ProjBobcat/Class/Helper/DownloadHelper.cs

@@ -1,5 +1,4 @@
 using System;
-using System.Buffers;
 using System.Collections.Concurrent;
 using System.Collections.Generic;
 using System.Diagnostics;
@@ -25,7 +24,6 @@ public static class DownloadHelper
     /// </summary>
     public static int DownloadThread { get; set; } = 8;
 
-    const int DefaultBufferSize = 1024 * 1024 * 4;
     static HttpClient Head => HttpClientHelper.HeadClient;
     static HttpClient Data => HttpClientHelper.DataClient;
     static HttpClient MultiPart => HttpClientHelper.MultiPartClient;

ProjBobcat/ProjBobcat/DefaultComponent/Launch/DefaultLauncherAccountParser.cs

@@ -13,6 +13,7 @@ namespace ProjBobcat.DefaultComponent.Launch;
 
 public class DefaultLauncherAccountParser : LauncherParserBase, ILauncherAccountParser
 {
+    readonly object _lock = new();
     readonly string _fullLauncherAccountPath;
 
     /// <summary>
@@ -69,12 +70,15 @@ LauncherAccountModel GenerateLauncherAccountModel(Guid clientToken)
 
     public bool ActivateAccount(string uuid)
     {
-        if (!(LauncherAccount?.Accounts?.ContainsKey(uuid) ?? false))
-            return false;
-
-        LauncherAccount.ActiveAccountLocalId = uuid;
+        lock (_lock)
+        {
+            if (!(LauncherAccount?.Accounts?.ContainsKey(uuid) ?? false))
+                return false;
 
-        Save();
+            LauncherAccount.ActiveAccountLocalId = uuid;
+            Save();
+        }
+
         return true;
     }
 
@@ -87,35 +91,33 @@ public bool AddNewAccount(string uuid, AccountModel account, out Guid? id)
         }
 
         LauncherAccount.Accounts ??= [];
-        
-        if (LauncherAccount.Accounts.ContainsKey(uuid))
+
+        lock (_lock)
         {
-            id = null;
-            return false;
+            if (LauncherAccount.Accounts.ContainsKey(uuid))
+            {
+                id = null;
+                return false;
+            }
         }
 
-        var oldRecord = LauncherAccount.Accounts
-            .FirstOrDefault(a => a.Value.MinecraftProfile?.Id == account.MinecraftProfile?.Id).Value;
-        if (oldRecord != null)
+        lock (_lock)
         {
-            id = oldRecord.Id;
-            return true;
+            var oldRecord = LauncherAccount.Accounts
+                .FirstOrDefault(a => a.Value.MinecraftProfile?.Id == account.MinecraftProfile?.Id).Value;
+            if (oldRecord != null)
+            {
+                id = oldRecord.Id;
+                return true;
+            }
         }
 
-        var newId = Guid.NewGuid();
-        /*
-        var existsAccount = LauncherAccount.Accounts
-            .FirstOrDefault(p => p.Value?.RemoteId?.Equals(account.RemoteId, StringComparison.OrdinalIgnoreCase) ?? false);
-        var (key, value) = existsAccount;
 
-        if(!string.IsNullOrEmpty(key) && value != null)
-        {
-            LauncherAccount.Accounts[key] = value;
-        }
-        else
-        */
+        lock (_lock)
         {
+            var newId = Guid.NewGuid();
             var findResult = Find(account.Id);
+
             if (findResult is { Key: not null, Value: not null })
             {
                 newId = account.Id;
@@ -127,17 +129,20 @@ public bool AddNewAccount(string uuid, AccountModel account, out Guid? id)
 
                 LauncherAccount.Accounts.Add(uuid, account);
             }
-        }
-
-        Save();
 
-        id = newId;
+            Save();
+            id = newId;
+        }
+
         return true;
     }
 
     public KeyValuePair<string, AccountModel>? Find(Guid id)
     {
-        return LauncherAccount?.Accounts?.FirstOrDefault(a => a.Value.Id == id);
+        lock (_lock)
+        {
+            return LauncherAccount?.Accounts?.FirstOrDefault(a => a.Value.Id == id);
+        }
     }
 
     public bool RemoveAccount(Guid id)
@@ -150,8 +155,11 @@ public bool RemoveAccount(Guid id)
 
         if (string.IsNullOrEmpty(key)) return false;
 
-        LauncherAccount?.Accounts?.Remove(key);
-        Save();
+        lock (_lock)
+        {
+            LauncherAccount?.Accounts?.Remove(key);
+            Save();
+        }
 
         return true;
     }

ProjBobcat/ProjBobcat/DefaultComponent/Launch/DefaultLauncherProfileParser.cs

@@ -18,6 +18,7 @@ namespace ProjBobcat.DefaultComponent.Launch;
 /// </summary>
 public sealed class DefaultLauncherProfileParser : LauncherParserBase, ILauncherProfileParser
 {
+    readonly object _lock = new();
     readonly string _fullLauncherProfilePath;
 
     /// <summary>
@@ -87,35 +88,51 @@ public void AddNewGameProfile(GameProfileModel gameProfile)
         if (string.IsNullOrEmpty(gameProfile.Name)) return;
         if (IsGameProfileExist(gameProfile.Name)) return;
 
-        LauncherProfile.Profiles!.Add(gameProfile.Name, gameProfile);
-        SaveProfile();
+        lock (_lock)
+        {
+            LauncherProfile.Profiles!.Add(gameProfile.Name, gameProfile);
+            SaveProfile();
+        }
     }
 
     public void EmptyGameProfiles()
     {
-        LauncherProfile.Profiles?.Clear();
-        SaveProfile();
+        lock (_lock)
+        {
+            LauncherProfile.Profiles?.Clear();
+            SaveProfile();
+        }
     }
 
     public GameProfileModel GetGameProfile(string name)
     {
-        var profile = LauncherProfile.Profiles!.FirstOrDefault(
-                          p => p.Value.Name?.Equals(name, StringComparison.Ordinal) ?? false).Value ??
-                      throw new UnknownGameNameException(name);
+        lock (_lock)
+        {
+            var profile = LauncherProfile.Profiles!.FirstOrDefault(
+                              p => p.Value.Name?.Equals(name, StringComparison.Ordinal) ?? false).Value ??
+                          throw new UnknownGameNameException(name);
 
-        profile.Resolution ??= new ResolutionModel();
+            profile.Resolution ??= new ResolutionModel();
 
-        return profile;
+            return profile;
+        }
     }
 
     public bool IsGameProfileExist(string name)
     {
-        return LauncherProfile.Profiles!.Any(p => p.Value.Name?.Equals(name, StringComparison.Ordinal) ?? false);
+        lock (_lock)
+        {
+            return LauncherProfile.Profiles!
+                .Any(p => p.Value.Name?.Equals(name, StringComparison.Ordinal) ?? false);
+        }
     }
 
     public void RemoveGameProfile(string name)
     {
-        LauncherProfile.Profiles!.Remove(name);
+        lock (_lock)
+        {
+            LauncherProfile.Profiles!.Remove(name);
+        }
     }
 
     public void SaveProfile()