Add read receipts and editing limits

Introduced message read tracking with a dedicated MessageReadingService, SignalR read request/response contracts, and hub notification flow for read receipts. Added configurable message edit constraints through MessageEditingOptions and a shared INowDateTimeProvider so timestamps are consistent across the app. Also fixed recipient validation in message removal and improved push token upsert behavior by matching the correct user/session record.
2026-09-21 10:19:43 +00:00 · 2026-08-27 18:02:47 +07:00
parent 3ec61fa2c0
commit 4603be9f71
17 changed files with 262 additions and 30 deletions
@@ -0,0 +1,72 @@
+using Govor.Application.Infrastructure.Common;
+using Govor.Domain;
+using Govor.Domain.Common;
+using Govor.Domain.Models.Messages;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.Extensions.Logging;
+using SmartRes;
+
+namespace Govor.Application.Messages;
+
+public class MessageReadingService : IMessageReadingService
+{
+    private readonly GovorDbContext _dbContext;
+    private readonly ILogger<MessageReadingService> _logger;
+    private readonly INowDateTimeProvider _dateTimeProvider;
+
+
+    public MessageReadingService(
+        GovorDbContext dbContext,
+        ILogger<MessageReadingService> logger, 
+        INowDateTimeProvider dateTimeProvider)
+    {
+        _dbContext = dbContext;
+        _logger = logger;
+        _dateTimeProvider = dateTimeProvider;
+    }
+
+    public async Task<Result<Message, Error>> ReadMessageAsync(Guid readerId, Guid messageId)
+    {
+        var message = await _dbContext.Messages
+                .Include(msg => msg.MessageViews)
+                .FirstOrDefaultAsync(msg => msg.Id == messageId);
+        
+        if(message is null)
+            return Result<Message, Error>.Failure(Error.NotFound(
+                "Message not found",
+                "Message with id: " + messageId + " was not found.")
+            );
+
+        if (CanReadMessage(readerId, message))
+        {
+            var view = new MessageView()
+            {
+                Id = Guid.NewGuid(),
+                MessageId = messageId,
+                UserId = readerId,
+                ViewedAt = _dateTimeProvider.Now,
+            };
+            
+            _dbContext.MessageViews.Add(view);
+            
+            await _dbContext.SaveChangesAsync();
+            
+            _logger.LogInformation("Message with id: {Id} was read by user {user} at {time}", view.Id,  view.UserId, view.ViewedAt);
+        }
+        
+        return message;
+    }
+
+    private bool CanReadMessage(Guid readerId, Message message)
+    {
+        if (message.RecipientType == RecipientType.User)
+        {
+            return _dbContext.PrivateChats.Any(pr => pr.UserAId == readerId || pr.UserBId == readerId) && 
+                   message.MessageViews.All(mv => mv.UserId != readerId);
+        }
+        else
+        {
+            return false;
+        }
+    }
+}