✨ Implement realtime chat

DysonNetwork.Sphere/Chat/ChatService.cs

@@ -1,4 +1,5 @@
 using DysonNetwork.Sphere.Account;
+using DysonNetwork.Sphere.Chat.Realtime;
 using DysonNetwork.Sphere.Connection;
 using DysonNetwork.Sphere.Storage;
 using Microsoft.EntityFrameworkCore;
@@ -6,7 +7,12 @@ using NodaTime;
 
 namespace DysonNetwork.Sphere.Chat;
 
-public class ChatService(AppDatabase db, FileService fs, IServiceScopeFactory scopeFactory)
+public class ChatService(
+    AppDatabase db,
+    FileService fs,
+    IServiceScopeFactory scopeFactory,
+    IRealtimeService realtime
+)
 {
     public async Task<Message> SendMessageAsync(Message message, ChatMember sender, ChatRoom room)
     {
@@ -105,10 +111,10 @@ public class ChatService(AppDatabase db, FileService fs, IServiceScopeFactory sc
             .Where(m => m.AccountId == userId)
             .Select(m => new { m.ChatRoomId, m.LastReadAt })
             .ToListAsync();
-    
+
         var lastReadAt = members.ToDictionary(m => m.ChatRoomId, m => m.LastReadAt);
         var roomsId = lastReadAt.Keys.ToList();
-        
+
         return await db.ChatMessages
             .Where(m => roomsId.Contains(m.ChatRoomId))
             .GroupBy(m => m.ChatRoomId)
@@ -124,7 +130,7 @@ public class ChatService(AppDatabase db, FileService fs, IServiceScopeFactory sc
             .Where(m => m.AccountId == userId)
             .Select(m => m.ChatRoomId)
             .ToListAsync();
-        
+
         var messages = await db.ChatMessages
             .IgnoreQueryFilters()
             .Include(m => m.Sender)
@@ -137,7 +143,7 @@ public class ChatService(AppDatabase db, FileService fs, IServiceScopeFactory sc
                 m => m!.ChatRoomId,
                 m => m
             );
-    
+
         return messages;
     }
 
@@ -147,13 +153,33 @@ public class ChatService(AppDatabase db, FileService fs, IServiceScopeFactory sc
         {
             RoomId = room.Id,
             SenderId = sender.Id,
+            ProviderName = realtime.ProviderName
         };
+
+        try
+        {
+            var sessionConfig = await realtime.CreateSessionAsync(room.Id, new Dictionary<string, object>
+            {
+                { "room_id", room.Id },
+                { "user_id", sender.AccountId },
+            });
+
+            // Store session details
+            call.SessionId = sessionConfig.SessionId;
+            call.UpstreamConfig = sessionConfig.Parameters;
+        }
+        catch (Exception ex)
+        {
+            // Log the exception but continue with call creation
+            throw new InvalidOperationException($"Failed to create {realtime.ProviderName} session: {ex.Message}");
+        }
+
         db.ChatRealtimeCall.Add(call);
         await db.SaveChangesAsync();
 
         await SendMessageAsync(new Message
         {
-            Type = "realtime.start",
+            Type = "call.start",
             ChatRoomId = room.Id,
             SenderId = sender.Id,
             Meta = new Dictionary<string, object>
@@ -169,14 +195,34 @@ public class ChatService(AppDatabase db, FileService fs, IServiceScopeFactory sc
     {
         var call = await GetCallOngoingAsync(roomId);
         if (call is null) throw new InvalidOperationException("No ongoing call was not found.");
-        
+
+        // End the realtime session if it exists
+        if (!string.IsNullOrEmpty(call.SessionId) && !string.IsNullOrEmpty(call.ProviderName))
+        {
+            try
+            {
+                var config = new RealtimeSessionConfig
+                {
+                    SessionId = call.SessionId,
+                    Parameters = call.UpstreamConfig
+                };
+
+                await realtime.EndSessionAsync(call.SessionId, config);
+            }
+            catch (Exception ex)
+            {
+                // Log the exception but continue with call ending
+                throw new InvalidOperationException($"Failed to end {call.ProviderName} session: {ex.Message}");
+            }
+        }
+
         call.EndedAt = SystemClock.Instance.GetCurrentInstant();
         db.ChatRealtimeCall.Update(call);
         await db.SaveChangesAsync();
 
         await SendMessageAsync(new Message
         {
-            Type = "realtime.ended",
+            Type = "call.ended",
             ChatRoomId = call.RoomId,
             SenderId = call.SenderId,
             Meta = new Dictionary<string, object>
@@ -185,7 +231,7 @@ public class ChatService(AppDatabase db, FileService fs, IServiceScopeFactory sc
             }
         }, call.Sender, call.Room);
     }
-    
+
     public async Task<RealtimeCall?> GetCallOngoingAsync(Guid roomId)
     {
         return await db.ChatRealtimeCall
@@ -195,7 +241,7 @@ public class ChatService(AppDatabase db, FileService fs, IServiceScopeFactory sc
             .Include(c => c.Sender)
             .FirstOrDefaultAsync();
     }
-    
+
     public async Task<SyncResponse> GetSyncDataAsync(Guid roomId, long lastSyncTimestamp)
     {
         var timestamp = Instant.FromUnixTimeMilliseconds(lastSyncTimestamp);