Refactor message loading API and add message query support

Reworked message loading endpoints and services to support flexible message querying with 'before' and 'after' parameters via a new MessageQuery contract. Updated controller actions, service interfaces, and implementations to use the new query model, and improved error handling. Added integration tests for ChatLoadController and introduced IUserPresenceService interface. Minor fixes and help text improvements in console client commands.

Govor.API/Controllers/ChatLoadController.cs

@@ -1,7 +1,9 @@
 using AutoMapper;
 using Govor.Application.Interfaces;
 using Govor.Application.Interfaces.Infrastructure.Extensions;
+using Govor.Contracts.Requests;
 using Govor.Contracts.Responses;
+using Govor.Data.Repositories.Exceptions;
 using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Mvc;
 
@@ -16,6 +18,7 @@ public class ChatLoadController : Controller
     private readonly ILogger<ChatLoadController> _logger;
     private readonly IMessagesLoader _messagesLoader;
     private readonly IMapper _mapper;
+    
     public ChatLoadController(
         ILogger<ChatLoadController> logger,
         IMessagesLoader messagesLoader,
@@ -29,18 +32,21 @@ public class ChatLoadController : Controller
     }
     
     [HttpGet("group-messages")]
-    public async Task<IActionResult> GetChatMessages( 
-        [FromQuery] Guid chatId,
-        [FromQuery] Guid? startMessageId,
-        [FromQuery] int pageSize)
+    public async Task<IActionResult> GetGroupMessages( 
+         Guid chatId,
+         [FromQuery] MessageQuery query)
     {
         try
         {
-            var result = await _messagesLoader.LoadLastMessagesInChatGroup(
+            if (query.Before < 0 || query.After < 0 || query.After + query.Before > 100)
+                return BadRequest("Values must be non-negative and total must not exceed 100.");
+
+            var result = await _messagesLoader.LoadMessagesInChatGroup(
                 chatId,
                 _currentUser.GetCurrentUserId(),
-                startMessageId,
-                pageSize);
+                query.StartMessageId,
+                query.Before,
+                query.After);
 
             var response = _mapper.Map<List<MessageResponse>>(result);
 
@@ -51,6 +57,16 @@ public class ChatLoadController : Controller
             _logger.LogWarning(ex.Message);
             return Forbid(ex.Message);
         }
+        catch (NotFoundException ex)
+        {
+            _logger.LogWarning(ex, ex.Message);
+            return BadRequest(ex.Message);
+        }
+        catch (ArgumentException ex)
+        {
+            _logger.LogWarning(ex, ex.Message);
+            return BadRequest(ex.Message);
+        }
         catch (Exception ex)
         {
             _logger.LogError(ex, ex.Message);
@@ -60,17 +76,20 @@ public class ChatLoadController : Controller
     
     [HttpGet("user-messages")]
     public async Task<IActionResult> GetUserMessages(
-        [FromQuery] Guid userId,
-        [FromQuery] Guid? startMessageId,
-        [FromQuery] int pageSize = 20)
+        Guid userId,
+        [FromQuery] MessageQuery query)
     {
         try
         {
-            var result = await _messagesLoader.LoadLastMessagesInUserChat(
+            if (query.Before < 0 || query.After < 0 || query.After + query.Before > 100)
+                return BadRequest("Values must be non-negative and total must not exceed 100.");
+            
+            var result = await _messagesLoader.LoadMessagesInUserChat(
                 userId,
                 _currentUser.GetCurrentUserId(),
-                startMessageId,
-                pageSize);
+                query.StartMessageId,
+                query.Before,
+                query.After);
 
             var response = _mapper.Map<List<MessageResponse>>(result);
 
@@ -86,6 +105,16 @@ public class ChatLoadController : Controller
             _logger.LogWarning(ex.Message);
             return Forbid(ex.Message);
         }
+        catch (NotFoundException ex)
+        {
+            _logger.LogWarning(ex, ex.Message);
+            return BadRequest(ex.Message);
+        }
+        catch (ArgumentException ex)
+        {
+            _logger.LogWarning(ex, ex.Message);
+            return BadRequest(ex.Message);
+        }
         catch (Exception ex)
         {
             _logger.LogError(ex, ex.Message);

Govor.API/Controllers/OnlinePingingController.cs

@@ -13,6 +13,7 @@ public class OnlinePingingController : Controller
 {
     private readonly ILogger<OnlinePingingController> _logger;
     private readonly IPingHandlerService _ping;
+    private readonly IUserPresenceService _presenceService;
     private readonly ICurrentUserService _currentUserService;
 
     public OnlinePingingController(ILogger<OnlinePingingController> logger, 
@@ -51,13 +52,21 @@ public class OnlinePingingController : Controller
         catch (Exception e)
         {
             _logger.LogError(e, e.Message);
-            return StatusCode(500, new { error = "Failed to send friend request." });
+            return StatusCode(500, "Failed to ping.");
         }
     }
 
-    [HttpGet("is-online")]
-    public async Task<IActionResult> IsOnline(Guid userId)
+    [HttpGet("status/{userId}")]
+    public IActionResult GetStatus(Guid userId)
     {
-        return BadRequest();
+        try
+        {
+            return Ok(_presenceService.WhenUserWasOnline(userId));
+        }
+        catch (Exception e)
+        {
+            _logger.LogError(e, e.Message);
+            return StatusCode(500, "Internal server error.");
+        }
     }
 }