Disable chat deletion

server/QMax.Api/Controllers/AdminController.cs

@@ -367,33 +367,11 @@ public sealed class AdminController(
     }
 
     [HttpDelete("api/chats/{id:guid}")]
-    public async Task<IActionResult> DeleteChat(Guid id, [FromQuery] string? pairingCode, CancellationToken cancellationToken)
+    public IActionResult DeleteChat(Guid id, [FromQuery] string? pairingCode)
     {
         if (!IsPairingCodeValid(pairingCode)) return Unauthorized();
 
-        var chat = await db.Chats
-            .Include(x => x.Messages)
-            .ThenInclude(x => x.Attachments)
-            .FirstOrDefaultAsync(x => x.Id == id, cancellationToken);
-        if (chat is null)
-        {
-            return NotFound();
-        }
-
-        var files = chat.Messages
-            .SelectMany(x => x.Attachments)
-            .Select(x => storage.GetPath(x.StorageFileName))
-            .Where(System.IO.File.Exists)
-            .ToArray();
-
-        db.Chats.Remove(chat);
-        await db.SaveChangesAsync(cancellationToken);
-        foreach (var file in files)
-        {
-            System.IO.File.Delete(file);
-        }
-
-        return NoContent();
+        return BadRequest("Chat deletion is disabled because MAX does not remove chats from the web client.");
     }
 
     private async Task<AdminStatusDto> BuildStatusAsync(CancellationToken cancellationToken)

server/QMax.Api/Controllers/ChatsController.cs

@@ -274,7 +274,7 @@ public sealed class ChatsController(
     }
 
     [HttpPost("delete")]
-    public async Task<IActionResult> DeleteChats(ChatBulkActionRequest request, CancellationToken cancellationToken)
+    public IActionResult DeleteChats(ChatBulkActionRequest request)
     {
         var chatIds = request.ChatIds.Distinct().ToArray();
         if (chatIds.Length == 0)
@@ -282,30 +282,7 @@ public sealed class ChatsController(
             return BadRequest("chatIds are required.");
         }
 
-        var chats = await LoadChatsWithAttachmentsAsync(chatIds, cancellationToken);
-        if (chats.Count != chatIds.Length)
-        {
-            return NotFound();
-        }
-
-        var now = DateTimeOffset.UtcNow;
-        var files = AttachmentFiles(chats).ToArray();
-        foreach (var chat in chats)
-        {
-            db.Messages.RemoveRange(chat.Messages);
-            chat.DeletedAt ??= now;
-            chat.HistoryClearedAt = now;
-            chat.LastMessageAt = null;
-            chat.LastMessagePreview = null;
-            chat.UnreadCount = 0;
-            chat.UpdatedAt = now;
-            QueuePendingMaxAction(chat, ChatPendingMaxAction.DeleteChat, now);
-        }
-
-        await db.SaveChangesAsync(cancellationToken);
-        DeleteFiles(files);
-        await hubContext.Clients.All.SendAsync("ChatListInvalidated", cancellationToken);
-        return NoContent();
+        return BadRequest("Chat deletion is disabled because MAX does not remove chats from the web client.");
     }
 
     [HttpGet("{chatId:guid}/search")]

server/QMax.Api/Infrastructure/Max/MockMaxBridgeClient.cs

@@ -68,7 +68,9 @@ public sealed class MockMaxBridgeClient : IMaxBridgeClient
 
     public Task<MaxActionResult> DeleteChatAsync(string externalChatId, string? chatUrl, CancellationToken cancellationToken)
     {
-        return Task.FromResult(new MaxActionResult(true, null));
+        return Task.FromResult(new MaxActionResult(
+            false,
+            "Chat deletion is disabled because MAX does not remove chats from the web client."));
     }
 
     public Task<MaxSendResult> SendTextAsync(string externalChatId, string? chatUrl, string text, CancellationToken cancellationToken)

server/QMax.Api/Infrastructure/Max/WorkerMaxBridgeClient.cs

@@ -69,14 +69,11 @@ public sealed class WorkerMaxBridgeClient(
             ?? new MaxActionResult(false, "Worker returned an empty clear history result.");
     }
 
-    public async Task<MaxActionResult> DeleteChatAsync(string externalChatId, string? chatUrl, CancellationToken cancellationToken)
+    public Task<MaxActionResult> DeleteChatAsync(string externalChatId, string? chatUrl, CancellationToken cancellationToken)
     {
-        return await SendAsync<MaxActionResult>(
-                HttpMethod.Post,
-                "/chat/delete",
-                new { externalChatId, chatUrl },
-                cancellationToken)
-            ?? new MaxActionResult(false, "Worker returned an empty delete chat result.");
+        return Task.FromResult(new MaxActionResult(
+            false,
+            "Chat deletion is disabled because MAX does not remove chats from the web client."));
     }
 
     public async Task<MaxSendResult> SendTextAsync(string externalChatId, string? chatUrl, string text, CancellationToken cancellationToken)

server/QMax.Api/Services/MaxOutboxService.cs

@@ -125,10 +125,9 @@ public sealed class MaxOutboxService(
                     chat,
                     (externalChatId, chatUrl) => maxBridge.ClearChatHistoryAsync(externalChatId, chatUrl, cancellationToken),
                     cancellationToken),
-                ChatPendingMaxAction.DeleteChat => await ApplyMaxChatActionAsync(
-                    chat,
-                    (externalChatId, chatUrl) => maxBridge.DeleteChatAsync(externalChatId, chatUrl, cancellationToken),
-                    cancellationToken),
+                ChatPendingMaxAction.DeleteChat => new MaxActionResult(
+                    false,
+                    "Chat deletion is disabled because MAX does not remove chats from the web client."),
                 _ => new MaxActionResult(false, $"Unsupported chat action: {pendingAction.Value}.")
             };
         }