✨ Chat controller

DysonNetwork.Sphere/AppDatabase.cs

@@ -176,7 +176,7 @@ public class AppDatabase(
             .OnDelete(DeleteBehavior.Cascade);
         
         modelBuilder.Entity<Chat.ChatMember>()
-            .HasKey(pm => new { pm.ChatRoom, pm.AccountId });
+            .HasKey(pm => new { pm.ChatRoomId, pm.AccountId });
         modelBuilder.Entity<Chat.ChatMember>()
             .HasOne(pm => pm.ChatRoom)
             .WithMany(p => p.Members)

DysonNetwork.Sphere/Chat/ChatRoomController.cs

@@ -1,50 +1,99 @@
 using Microsoft.AspNetCore.Mvc;
-using DysonNetwork.Sphere.Account;
 using Microsoft.EntityFrameworkCore;
-
 using System.ComponentModel.DataAnnotations;
-using DysonNetwork.Sphere.Account;
-using Microsoft.AspNetCore.Mvc;
-using Microsoft.EntityFrameworkCore;
-using NodaTime;
-
+using DysonNetwork.Sphere.Realm;
 using DysonNetwork.Sphere.Storage;
 
 namespace DysonNetwork.Sphere.Chat;
 
 [ApiController]
-[Route("/chatrooms")]
+[Route("/chat")]
 public class ChatRoomController(AppDatabase db, FileService fs) : ControllerBase
 {
+    [HttpGet("{id:long}")]
+    public async Task<ActionResult<ChatRoom>> GetChatRoom(long id)
+    {
+        var chatRoom = await db.ChatRooms
+            .Where(c => c.Id == id)
+            .Include(e => e.Picture)
+            .Include(e => e.Background)
+            .FirstOrDefaultAsync();
+        if (chatRoom is null) return NotFound();
+        return Ok(chatRoom);
+    }
+
+    [HttpGet]
+    public async Task<ActionResult<List<ChatRoom>>> ListJoinedChatRooms()
+    {
+        if (HttpContext.Items["CurrentUser"] is not Account.Account currentUser) return Unauthorized();
+        var userId = currentUser.Id;
+
+        var members = await db.ChatMembers
+            .Where(m => m.AccountId == userId)
+            .Where(m => m.JoinedAt != null)
+            .Include(e => e.ChatRoom)
+            .Include(e => e.ChatRoom.Picture)
+            .Include(e => e.ChatRoom.Background)
+            .Include(e => e.ChatRoom.Type == ChatRoomType.DirectMessage ? e.ChatRoom.Members : null)
+            .Select(m => m.ChatRoom)
+            .ToListAsync();
+
+        return members.ToList();
+    }
+
+    public class ChatRoomRequest
+    {
+        [Required] [MaxLength(1024)] public string? Name { get; set; }
+        [MaxLength(4096)] public string? Description { get; set; }
+        public string? PictureId { get; set; }
+        public string? BackgroundId { get; set; }
+        public long? RealmId { get; set; }
+    }
+
     [HttpPost]
     public async Task<ActionResult<ChatRoom>> CreateChatRoom(ChatRoomRequest request)
     {
         if (HttpContext.Items["CurrentUser"] is not Account.Account currentUser) return Unauthorized();
         if (request.Name is null) return BadRequest("You cannot create a chat room without a name.");
-        
-        CloudFile? picture = null;
-        if (request.PictureId is not null)
-        {
-            picture = await db.Files.FindAsync(request.PictureId);
-            if (picture is null) return BadRequest("Invalid picture id, unable to find the file on cloud.");
-        }
-
-        CloudFile? background = null;
-        if (request.BackgroundId is not null)
-        {
-            background = await db.Files.FindAsync(request.BackgroundId);
-            if (background is null) return BadRequest("Invalid background id, unable to find the file on cloud.");
-        }
 
         var chatRoom = new ChatRoom
         {
             Name = request.Name,
             Description = request.Description ?? string.Empty,
-            Picture = picture,
-            Background = background,
-            CreatedAt = Instant.FromDateTimeUtc(DateTime.UtcNow)
+            Members = new List<ChatMember>
+            {
+                new()
+                {
+                    Role = ChatMemberRole.Owner,
+                    AccountId = currentUser.Id
+                }
+            }
         };
 
+        if (request.RealmId is not null)
+        {
+            var member = await db.RealmMembers
+                .Where(m => m.AccountId == currentUser.Id)
+                .Where(m => m.RealmId == request.RealmId)
+                .FirstOrDefaultAsync();
+            if (member is null || member.Role < RealmMemberRole.Moderator)
+                return StatusCode(403, "You need at least be a moderator to create chat linked to the realm.");
+            chatRoom.RealmId = member.RealmId;
+        }
+
+        if (request.PictureId is not null)
+        {
+            chatRoom.Picture = await db.Files.FindAsync(request.PictureId);
+            if (chatRoom.Picture is null) return BadRequest("Invalid picture id, unable to find the file on cloud.");
+        }
+
+        if (request.BackgroundId is not null)
+        {
+            chatRoom.Background = await db.Files.FindAsync(request.BackgroundId);
+            if (chatRoom.Background is null)
+                return BadRequest("Invalid background id, unable to find the file on cloud.");
+        }
+
         db.ChatRooms.Add(chatRoom);
         await db.SaveChangesAsync();
 
@@ -56,79 +105,116 @@ public class ChatRoomController(AppDatabase db, FileService fs) : ControllerBase
         return Ok(chatRoom);
     }
 
-    [HttpGet("{id}")]
-    public async Task<ActionResult<ChatRoom>> GetChatRoom(long id)
-    {
-        var chatRoom = await db.ChatRooms.FindAsync(id);
-        if (chatRoom is null) return NotFound();
-        return Ok(chatRoom);
-    }
-
-    [HttpGet]
-    public async Task<ActionResult<List<ChatRoom>>> ListChatRooms()
-    {
-        var chatRooms = await db.ChatRooms.ToListAsync();
-        return chatRooms;
-    }
-
-    public class ChatRoomRequest
-    {
-        [Required]
-        [MaxLength(1024)]
-        public string? Name { get; set; }
-
-        [MaxLength(4096)] public string? Description { get; set; }
-        public string? PictureId { get; set; }
-        public string? BackgroundId { get; set; }
-    }
-
-    [HttpPut("{id}")]
+    [HttpPut("{id:long}")]
     public async Task<ActionResult<ChatRoom>> UpdateChatRoom(long id, [FromBody] ChatRoomRequest request)
     {
         if (HttpContext.Items["CurrentUser"] is not Account.Account currentUser) return Unauthorized();
 
-        var chatRoom = await db.ChatRooms.FindAsync(id);
+        var chatRoom = await db.ChatRooms
+            .Where(e => e.Id == id)
+            .Include(c => c.Picture)
+            .Include(c => c.Background)
+            .FirstOrDefaultAsync();
         if (chatRoom is null) return NotFound();
 
-        CloudFile? picture = null;
+        if (chatRoom.RealmId is not null)
+        {
+            var realmMember = await db.RealmMembers
+                .Where(m => m.AccountId == currentUser.Id)
+                .Where(m => m.RealmId == chatRoom.RealmId)
+                .FirstOrDefaultAsync();
+            if (realmMember is null || realmMember.Role < RealmMemberRole.Moderator)
+                return StatusCode(403, "You need at least be a realm moderator to update the chat."); 
+        }
+        else
+        {
+            var chatMember = await db.ChatMembers
+                .Where(m => m.AccountId == currentUser.Id)
+                .Where(m => m.ChatRoomId == chatRoom.Id)
+                .FirstOrDefaultAsync();
+            if (chatMember is null || chatMember.Role < ChatMemberRole.Moderator)
+                return StatusCode(403, "You need at least be a moderator to update the chat.");
+        }
+
+        if (request.RealmId is not null)
+        {
+            var member = await db.RealmMembers
+                .Where(m => m.AccountId == currentUser.Id)
+                .Where(m => m.RealmId == request.RealmId)
+                .FirstOrDefaultAsync();
+            if (member is null || member.Role < RealmMemberRole.Moderator)
+                return StatusCode(403, "You need at least be a moderator to transfer the chat linked to the realm.");
+            chatRoom.RealmId = member.RealmId;
+        }
+
         if (request.PictureId is not null)
         {
-            picture = await db.Files.FindAsync(request.PictureId);
+            var picture = await db.Files.FindAsync(request.PictureId);
             if (picture is null) return BadRequest("Invalid picture id, unable to find the file on cloud.");
+            await fs.MarkUsageAsync(picture, 1);
+            if (chatRoom.Picture is not null) await fs.MarkUsageAsync(chatRoom.Picture, -1);
             chatRoom.Picture = picture;
         }
-        else if(request.PictureId == "")
-        {
-            chatRoom.Picture = null;
-        }
-        CloudFile? background = null;
+
         if (request.BackgroundId is not null)
         {
-            background = await db.Files.FindAsync(request.BackgroundId);
+            var background = await db.Files.FindAsync(request.BackgroundId);
             if (background is null) return BadRequest("Invalid background id, unable to find the file on cloud.");
+            await fs.MarkUsageAsync(background, 1);
+            if (chatRoom.Background is not null) await fs.MarkUsageAsync(chatRoom.Background, -1);
+            chatRoom.Background = background;
         }
-        else if(request.BackgroundId == "")
-        {
-            chatRoom.Background = null;
-        }
+
         if (request.Name is not null)
             chatRoom.Name = request.Name;
+        if (request.Description is not null)
+            chatRoom.Description = request.Description;
 
         db.ChatRooms.Update(chatRoom);
         await db.SaveChangesAsync();
+
         return Ok(chatRoom);
     }
 
-    [HttpDelete("{id}")]
+    [HttpDelete("{id:long}")]
     public async Task<ActionResult> DeleteChatRoom(long id)
     {
         if (HttpContext.Items["CurrentUser"] is not Account.Account currentUser) return Unauthorized();
 
-        var chatRoom = await db.ChatRooms.FindAsync(id);
+        var chatRoom = await db.ChatRooms
+            .Where(e => e.Id == id)
+            .Include(c => c.Picture)
+            .Include(c => c.Background)
+            .FirstOrDefaultAsync();
         if (chatRoom is null) return NotFound();
+        
+        if (chatRoom.RealmId is not null)
+        {
+            var realmMember = await db.RealmMembers
+                .Where(m => m.AccountId == currentUser.Id)
+                .Where(m => m.RealmId == chatRoom.RealmId)
+                .FirstOrDefaultAsync();
+            if (realmMember is null || realmMember.Role < RealmMemberRole.Moderator)
+                return StatusCode(403, "You need at least be a realm moderator to delete the chat."); 
+        }
+        else
+        {
+            var chatMember = await db.ChatMembers
+                .Where(m => m.AccountId == currentUser.Id)
+                .Where(m => m.ChatRoomId == chatRoom.Id)
+                .FirstOrDefaultAsync();
+            if (chatMember is null || chatMember.Role < ChatMemberRole.Owner)
+                return StatusCode(403, "You need at least be the owner to delete the chat.");
+        }
 
         db.ChatRooms.Remove(chatRoom);
         await db.SaveChangesAsync();
+
+        if (chatRoom.Picture is not null)
+            await fs.MarkUsageAsync(chatRoom.Picture, -1);
+        if (chatRoom.Background is not null)
+            await fs.MarkUsageAsync(chatRoom.Background, -1);
+
         return NoContent();
     }
 }

DysonNetwork.Sphere/Migrations/20250502040651_RealmAndChat.cs

@@ -0,0 +1,51 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+using NodaTime;
+
+#nullable disable
+
+namespace DysonNetwork.Sphere.Migrations
+{
+    /// <inheritdoc />
+    public partial class RealmAndChat : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AddColumn<Instant>(
+                name: "created_at",
+                table: "publisher_members",
+                type: "timestamp with time zone",
+                nullable: false,
+                defaultValue: NodaTime.Instant.FromUnixTimeTicks(0L));
+
+            migrationBuilder.AddColumn<Instant>(
+                name: "deleted_at",
+                table: "publisher_members",
+                type: "timestamp with time zone",
+                nullable: true);
+
+            migrationBuilder.AddColumn<Instant>(
+                name: "updated_at",
+                table: "publisher_members",
+                type: "timestamp with time zone",
+                nullable: false,
+                defaultValue: NodaTime.Instant.FromUnixTimeTicks(0L));
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropColumn(
+                name: "created_at",
+                table: "publisher_members");
+
+            migrationBuilder.DropColumn(
+                name: "deleted_at",
+                table: "publisher_members");
+
+            migrationBuilder.DropColumn(
+                name: "updated_at",
+                table: "publisher_members");
+        }
+    }
+}

DysonNetwork.Sphere/Migrations/AppDatabaseModelSnapshot.cs

@@ -645,6 +645,117 @@ namespace DysonNetwork.Sphere.Migrations
                     b.ToTable("auth_sessions", (string)null);
                 });
 
+            modelBuilder.Entity("DysonNetwork.Sphere.Chat.ChatMember", b =>
+                {
+                    b.Property<long>("ChatRoomId")
+                        .HasColumnType("bigint")
+                        .HasColumnName("chat_room_id");
+
+                    b.Property<long>("AccountId")
+                        .HasColumnType("bigint")
+                        .HasColumnName("account_id");
+
+                    b.Property<Instant>("CreatedAt")
+                        .HasColumnType("timestamp with time zone")
+                        .HasColumnName("created_at");
+
+                    b.Property<Instant?>("DeletedAt")
+                        .HasColumnType("timestamp with time zone")
+                        .HasColumnName("deleted_at");
+
+                    b.Property<bool>("IsBot")
+                        .HasColumnType("boolean")
+                        .HasColumnName("is_bot");
+
+                    b.Property<Instant?>("JoinedAt")
+                        .HasColumnType("timestamp with time zone")
+                        .HasColumnName("joined_at");
+
+                    b.Property<int>("Role")
+                        .HasColumnType("integer")
+                        .HasColumnName("role");
+
+                    b.Property<Instant>("UpdatedAt")
+                        .HasColumnType("timestamp with time zone")
+                        .HasColumnName("updated_at");
+
+                    b.HasKey("ChatRoomId", "AccountId")
+                        .HasName("pk_chat_members");
+
+                    b.HasIndex("AccountId")
+                        .HasDatabaseName("ix_chat_members_account_id");
+
+                    b.ToTable("chat_members", (string)null);
+                });
+
+            modelBuilder.Entity("DysonNetwork.Sphere.Chat.ChatRoom", b =>
+                {
+                    b.Property<long>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("bigint")
+                        .HasColumnName("id");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<long>("Id"));
+
+                    b.Property<string>("BackgroundId")
+                        .HasColumnType("character varying(128)")
+                        .HasColumnName("background_id");
+
+                    b.Property<Instant>("CreatedAt")
+                        .HasColumnType("timestamp with time zone")
+                        .HasColumnName("created_at");
+
+                    b.Property<Instant?>("DeletedAt")
+                        .HasColumnType("timestamp with time zone")
+                        .HasColumnName("deleted_at");
+
+                    b.Property<string>("Description")
+                        .IsRequired()
+                        .HasMaxLength(4096)
+                        .HasColumnType("character varying(4096)")
+                        .HasColumnName("description");
+
+                    b.Property<bool>("IsPublic")
+                        .HasColumnType("boolean")
+                        .HasColumnName("is_public");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasMaxLength(1024)
+                        .HasColumnType("character varying(1024)")
+                        .HasColumnName("name");
+
+                    b.Property<string>("PictureId")
+                        .HasColumnType("character varying(128)")
+                        .HasColumnName("picture_id");
+
+                    b.Property<long?>("RealmId")
+                        .HasColumnType("bigint")
+                        .HasColumnName("realm_id");
+
+                    b.Property<int>("Type")
+                        .HasColumnType("integer")
+                        .HasColumnName("type");
+
+                    b.Property<Instant>("UpdatedAt")
+                        .HasColumnType("timestamp with time zone")
+                        .HasColumnName("updated_at");
+
+                    b.HasKey("Id")
+                        .HasName("pk_chat_rooms");
+
+                    b.HasIndex("BackgroundId")
+                        .HasDatabaseName("ix_chat_rooms_background_id");
+
+                    b.HasIndex("PictureId")
+                        .HasDatabaseName("ix_chat_rooms_picture_id");
+
+                    b.HasIndex("RealmId")
+                        .HasDatabaseName("ix_chat_rooms_realm_id");
+
+                    b.ToTable("chat_rooms", (string)null);
+                });
+
             modelBuilder.Entity("DysonNetwork.Sphere.Permission.PermissionGroup", b =>
                 {
                     b.Property<Guid>("Id")
@@ -1192,6 +1303,132 @@ namespace DysonNetwork.Sphere.Migrations
                     b.ToTable("publisher_members", (string)null);
                 });
 
+            modelBuilder.Entity("DysonNetwork.Sphere.Realm.Realm", b =>
+                {
+                    b.Property<long>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("bigint")
+                        .HasColumnName("id");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<long>("Id"));
+
+                    b.Property<long>("AccountId")
+                        .HasColumnType("bigint")
+                        .HasColumnName("account_id");
+
+                    b.Property<string>("BackgroundId")
+                        .HasColumnType("character varying(128)")
+                        .HasColumnName("background_id");
+
+                    b.Property<Instant>("CreatedAt")
+                        .HasColumnType("timestamp with time zone")
+                        .HasColumnName("created_at");
+
+                    b.Property<Instant?>("DeletedAt")
+                        .HasColumnType("timestamp with time zone")
+                        .HasColumnName("deleted_at");
+
+                    b.Property<string>("Description")
+                        .IsRequired()
+                        .HasMaxLength(4096)
+                        .HasColumnType("character varying(4096)")
+                        .HasColumnName("description");
+
+                    b.Property<bool>("IsCommunity")
+                        .HasColumnType("boolean")
+                        .HasColumnName("is_community");
+
+                    b.Property<bool>("IsPublic")
+                        .HasColumnType("boolean")
+                        .HasColumnName("is_public");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasMaxLength(1024)
+                        .HasColumnType("character varying(1024)")
+                        .HasColumnName("name");
+
+                    b.Property<string>("PictureId")
+                        .HasColumnType("character varying(128)")
+                        .HasColumnName("picture_id");
+
+                    b.Property<string>("Slug")
+                        .IsRequired()
+                        .HasMaxLength(1024)
+                        .HasColumnType("character varying(1024)")
+                        .HasColumnName("slug");
+
+                    b.Property<Instant>("UpdatedAt")
+                        .HasColumnType("timestamp with time zone")
+                        .HasColumnName("updated_at");
+
+                    b.Property<string>("VerifiedAs")
+                        .HasMaxLength(4096)
+                        .HasColumnType("character varying(4096)")
+                        .HasColumnName("verified_as");
+
+                    b.Property<Instant?>("VerifiedAt")
+                        .HasColumnType("timestamp with time zone")
+                        .HasColumnName("verified_at");
+
+                    b.HasKey("Id")
+                        .HasName("pk_realms");
+
+                    b.HasIndex("AccountId")
+                        .HasDatabaseName("ix_realms_account_id");
+
+                    b.HasIndex("BackgroundId")
+                        .HasDatabaseName("ix_realms_background_id");
+
+                    b.HasIndex("PictureId")
+                        .HasDatabaseName("ix_realms_picture_id");
+
+                    b.HasIndex("Slug")
+                        .IsUnique()
+                        .HasDatabaseName("ix_realms_slug");
+
+                    b.ToTable("realms", (string)null);
+                });
+
+            modelBuilder.Entity("DysonNetwork.Sphere.Realm.RealmMember", b =>
+                {
+                    b.Property<long>("RealmId")
+                        .HasColumnType("bigint")
+                        .HasColumnName("realm_id");
+
+                    b.Property<long>("AccountId")
+                        .HasColumnType("bigint")
+                        .HasColumnName("account_id");
+
+                    b.Property<Instant>("CreatedAt")
+                        .HasColumnType("timestamp with time zone")
+                        .HasColumnName("created_at");
+
+                    b.Property<Instant?>("DeletedAt")
+                        .HasColumnType("timestamp with time zone")
+                        .HasColumnName("deleted_at");
+
+                    b.Property<Instant?>("JoinedAt")
+                        .HasColumnType("timestamp with time zone")
+                        .HasColumnName("joined_at");
+
+                    b.Property<int>("Role")
+                        .HasColumnType("integer")
+                        .HasColumnName("role");
+
+                    b.Property<Instant>("UpdatedAt")
+                        .HasColumnType("timestamp with time zone")
+                        .HasColumnName("updated_at");
+
+                    b.HasKey("RealmId", "AccountId")
+                        .HasName("pk_realm_members");
+
+                    b.HasIndex("AccountId")
+                        .HasDatabaseName("ix_realm_members_account_id");
+
+                    b.ToTable("realm_members", (string)null);
+                });
+
             modelBuilder.Entity("DysonNetwork.Sphere.Storage.CloudFile", b =>
                 {
                     b.Property<string>("Id")
@@ -1492,6 +1729,51 @@ namespace DysonNetwork.Sphere.Migrations
                     b.Navigation("Challenge");
                 });
 
+            modelBuilder.Entity("DysonNetwork.Sphere.Chat.ChatMember", b =>
+                {
+                    b.HasOne("DysonNetwork.Sphere.Account.Account", "Account")
+                        .WithMany()
+                        .HasForeignKey("AccountId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired()
+                        .HasConstraintName("fk_chat_members_accounts_account_id");
+
+                    b.HasOne("DysonNetwork.Sphere.Chat.ChatRoom", "ChatRoom")
+                        .WithMany("Members")
+                        .HasForeignKey("ChatRoomId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired()
+                        .HasConstraintName("fk_chat_members_chat_rooms_chat_room_id");
+
+                    b.Navigation("Account");
+
+                    b.Navigation("ChatRoom");
+                });
+
+            modelBuilder.Entity("DysonNetwork.Sphere.Chat.ChatRoom", b =>
+                {
+                    b.HasOne("DysonNetwork.Sphere.Storage.CloudFile", "Background")
+                        .WithMany()
+                        .HasForeignKey("BackgroundId")
+                        .HasConstraintName("fk_chat_rooms_files_background_id");
+
+                    b.HasOne("DysonNetwork.Sphere.Storage.CloudFile", "Picture")
+                        .WithMany()
+                        .HasForeignKey("PictureId")
+                        .HasConstraintName("fk_chat_rooms_files_picture_id");
+
+                    b.HasOne("DysonNetwork.Sphere.Realm.Realm", "Realm")
+                        .WithMany("ChatRooms")
+                        .HasForeignKey("RealmId")
+                        .HasConstraintName("fk_chat_rooms_realms_realm_id");
+
+                    b.Navigation("Background");
+
+                    b.Navigation("Picture");
+
+                    b.Navigation("Realm");
+                });
+
             modelBuilder.Entity("DysonNetwork.Sphere.Permission.PermissionGroupMember", b =>
                 {
                     b.HasOne("DysonNetwork.Sphere.Permission.PermissionGroup", "Group")
@@ -1627,6 +1909,53 @@ namespace DysonNetwork.Sphere.Migrations
                     b.Navigation("Publisher");
                 });
 
+            modelBuilder.Entity("DysonNetwork.Sphere.Realm.Realm", b =>
+                {
+                    b.HasOne("DysonNetwork.Sphere.Account.Account", "Account")
+                        .WithMany()
+                        .HasForeignKey("AccountId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired()
+                        .HasConstraintName("fk_realms_accounts_account_id");
+
+                    b.HasOne("DysonNetwork.Sphere.Storage.CloudFile", "Background")
+                        .WithMany()
+                        .HasForeignKey("BackgroundId")
+                        .HasConstraintName("fk_realms_files_background_id");
+
+                    b.HasOne("DysonNetwork.Sphere.Storage.CloudFile", "Picture")
+                        .WithMany()
+                        .HasForeignKey("PictureId")
+                        .HasConstraintName("fk_realms_files_picture_id");
+
+                    b.Navigation("Account");
+
+                    b.Navigation("Background");
+
+                    b.Navigation("Picture");
+                });
+
+            modelBuilder.Entity("DysonNetwork.Sphere.Realm.RealmMember", b =>
+                {
+                    b.HasOne("DysonNetwork.Sphere.Account.Account", "Account")
+                        .WithMany()
+                        .HasForeignKey("AccountId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired()
+                        .HasConstraintName("fk_realm_members_accounts_account_id");
+
+                    b.HasOne("DysonNetwork.Sphere.Realm.Realm", "Realm")
+                        .WithMany("Members")
+                        .HasForeignKey("RealmId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired()
+                        .HasConstraintName("fk_realm_members_realms_realm_id");
+
+                    b.Navigation("Account");
+
+                    b.Navigation("Realm");
+                });
+
             modelBuilder.Entity("DysonNetwork.Sphere.Storage.CloudFile", b =>
                 {
                     b.HasOne("DysonNetwork.Sphere.Account.Account", "Account")
@@ -1713,6 +2042,11 @@ namespace DysonNetwork.Sphere.Migrations
                     b.Navigation("Sessions");
                 });
 
+            modelBuilder.Entity("DysonNetwork.Sphere.Chat.ChatRoom", b =>
+                {
+                    b.Navigation("Members");
+                });
+
             modelBuilder.Entity("DysonNetwork.Sphere.Permission.PermissionGroup", b =>
                 {
                     b.Navigation("Members");
@@ -1735,6 +2069,13 @@ namespace DysonNetwork.Sphere.Migrations
 
                     b.Navigation("Posts");
                 });
+
+            modelBuilder.Entity("DysonNetwork.Sphere.Realm.Realm", b =>
+                {
+                    b.Navigation("ChatRooms");
+
+                    b.Navigation("Members");
+                });
 #pragma warning restore 612, 618
         }
     }

DysonNetwork.Sphere/Post/Publisher.cs

@@ -41,7 +41,7 @@ public enum PublisherMemberRole
     Viewer = 25
 }
 
-public class PublisherMember
+public class PublisherMember : ModelBase
 {
     public long PublisherId { get; set; }
     [JsonIgnore] public Publisher Publisher { get; set; } = null!;

DysonNetwork.Sphere/Realm/RealmChatController.cs

@@ -0,0 +1,38 @@
+using DysonNetwork.Sphere.Chat;
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.EntityFrameworkCore;
+
+namespace DysonNetwork.Sphere.Realm;
+
+[ApiController]
+[Route("/realm/{slug}")]
+public class RealmChatController(AppDatabase db) : ControllerBase
+{
+    [HttpGet("/chat")]
+    [Authorize]
+    public async Task<ActionResult<List<ChatRoom>>> ListRealmChat(string slug)
+    {
+        var currentUser = HttpContext.Items["CurrentUser"] as Account.Account;
+
+        var realm = await db.Realms
+            .Where(r => r.Slug == slug)
+            .FirstOrDefaultAsync();
+        if (realm is null) return NotFound();
+        if (!realm.IsPublic)
+        {
+            if (currentUser is null) return Unauthorized();
+            var member = await db.ChatMembers
+                .Where(m => m.ChatRoomId == realm.Id)
+                .Where(m => m.AccountId == currentUser.Id)
+                .FirstOrDefaultAsync();
+            if (member is null) return BadRequest("You need at least one member to view the realm's chat.");
+        }
+
+        var chatRooms = await db.ChatRooms
+            .Where(c => c.RealmId == realm.Id)
+            .ToListAsync();
+        
+        return Ok(chatRooms);
+    }
+}

DysonNetwork.Sphere/Realm/RealmController.cs

@@ -13,8 +13,6 @@ public class RealmController(AppDatabase db, RealmService rs, FileService fs) :
     [HttpGet("{slug}")]
     public async Task<ActionResult<Realm>> GetRealm(string slug)
     {
-        if (HttpContext.Items["CurrentUser"] is not Account.Account currentUser) return Unauthorized();
-
         var realm = await db.Realms
             .Where(e => e.Slug == slug)
             .Include(e => e.Picture)
@@ -27,7 +25,7 @@ public class RealmController(AppDatabase db, RealmService rs, FileService fs) :
 
     [HttpGet]
     [Authorize]
-    public async Task<ActionResult<List<Realm>>> ListManagedRealms()
+    public async Task<ActionResult<List<Realm>>> ListJoinedRealms()
     {
         if (HttpContext.Items["CurrentUser"] is not Account.Account currentUser) return Unauthorized();
         var userId = currentUser.Id;
@@ -38,10 +36,13 @@ public class RealmController(AppDatabase db, RealmService rs, FileService fs) :
             .Include(e => e.Realm)
             .Include(e => e.Realm.Picture)
             .Include(e => e.Realm.Background)
+            .Select(m => m.Realm)
             .ToListAsync();
 
-        return members.Select(m => m.Realm).ToList();
+        return members.ToList();
     }
+    
+    [HttpGet("/")]
 
     [HttpGet("invites")]
     [Authorize]
@@ -179,7 +180,15 @@ public class RealmController(AppDatabase db, RealmService rs, FileService fs) :
             Description = request.Description!,
             AccountId = currentUser.Id,
             IsCommunity = request.IsCommunity ?? false,
-            IsPublic = request.IsPublic ?? false
+            IsPublic = request.IsPublic ?? false,
+            Members = new List<RealmMember>
+            {
+                new()
+                {
+                    Role = RealmMemberRole.Owner,
+                    AccountId = currentUser.Id
+                }
+            }
         };
 
         if (request.PictureId is not null)
@@ -242,6 +251,8 @@ public class RealmController(AppDatabase db, RealmService rs, FileService fs) :
         {
             var picture = await db.Files.FindAsync(request.PictureId);
             if (picture is null) return BadRequest("Invalid picture id, unable to find the file on cloud.");
+            await fs.MarkUsageAsync(picture, 1);
+            if (realm.Picture is not null) await fs.MarkUsageAsync(realm.Picture, -1);
             realm.Picture = picture;
         }
 
@@ -249,6 +260,8 @@ public class RealmController(AppDatabase db, RealmService rs, FileService fs) :
         {
             var background = await db.Files.FindAsync(request.BackgroundId);
             if (background is null) return BadRequest("Invalid background id, unable to find the file on cloud.");
+            await fs.MarkUsageAsync(background, 1);
+            if (realm.Background is not null) await fs.MarkUsageAsync(realm.Background, -1);
             realm.Background = background;
         }
 
@@ -265,6 +278,8 @@ public class RealmController(AppDatabase db, RealmService rs, FileService fs) :
 
         var realm = await db.Realms
             .Where(r => r.Slug == slug)
+            .Include(r => r.Picture)
+            .Include(r => r.Background)
             .FirstOrDefaultAsync();
         if (realm is null) return NotFound();
 
@@ -276,6 +291,12 @@ public class RealmController(AppDatabase db, RealmService rs, FileService fs) :
 
         db.Realms.Remove(realm);
         await db.SaveChangesAsync();
+
+        if (realm.Picture is not null)
+            await fs.MarkUsageAsync(realm.Picture, -1);
+        if (realm.Background is not null)
+            await fs.MarkUsageAsync(realm.Background, -1);
+
         return NoContent();
     }
 }