chat: add database types and auth middleware

Foxchat.Chat/Database/BaseModel.cs

@@ -0,0 +1,6 @@
+namespace Foxchat.Chat.Database;
+
+public abstract class BaseModel
+{
+    public Ulid Id { get; init; } = Ulid.NewUlid();
+}

Foxchat.Chat/Database/ChatContext.cs

@@ -1,3 +1,4 @@
+using Foxchat.Chat.Database.Models;
 using Foxchat.Core;
 using Foxchat.Core.Database;
 using Microsoft.EntityFrameworkCore;
@@ -11,6 +12,11 @@ public class ChatContext : IDatabaseContext
     private readonly NpgsqlDataSource _dataSource;
 
     public override DbSet<Instance> Instance { get; set; }
+    public DbSet<IdentityInstance> IdentityInstances { get; set; }
+    public DbSet<User> Users { get; set; }
+    public DbSet<Guild> Guilds { get; set; }
+    public DbSet<Channel> Channels { get; set; }
+    public DbSet<Message> Messages { get; set; }
 
     public ChatContext(InstanceConfig config)
     {
@@ -26,9 +32,9 @@ public class ChatContext : IDatabaseContext
     }
 
     protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
-            => optionsBuilder
-                .UseNpgsql(_dataSource, o => o.UseNodaTime())
-                .UseSnakeCaseNamingConvention();
+        => optionsBuilder
+            .UseNpgsql(_dataSource, o => o.UseNodaTime())
+            .UseSnakeCaseNamingConvention();
 
     protected override void ConfigureConventions(ModelConfigurationBuilder configurationBuilder)
     {
@@ -38,20 +44,35 @@ public class ChatContext : IDatabaseContext
 
     protected override void OnModelCreating(ModelBuilder modelBuilder)
     {
+        modelBuilder.Entity<IdentityInstance>().HasIndex(i => i.Domain).IsUnique();
+
+        modelBuilder.Entity<User>().HasIndex(u => new { u.RemoteUserId, u.InstanceId }).IsUnique();
+        modelBuilder.Entity<User>().HasIndex(u => new { u.Username, u.InstanceId }).IsUnique();
+
+        modelBuilder.Entity<Guild>()
+            .HasOne(e => e.Owner)
+            .WithMany(e => e.OwnedGuilds)
+            .HasForeignKey(e => e.OwnerId)
+            .IsRequired();
+
+        modelBuilder.Entity<User>()
+            .HasMany(e => e.Guilds)
+            .WithMany(e => e.Users);
     }
 }
 
+// ReSharper disable once UnusedType.Global
 public class DesignTimeIdentityContextFactory : IDesignTimeDbContextFactory<ChatContext>
 {
     public ChatContext CreateDbContext(string[] args)
     {
         // Read the configuration file
         var config = new ConfigurationBuilder()
-            .AddConfiguration("identity.ini")
+            .AddConfiguration("chat.ini")
             .Build()
             // Get the configuration as our config class
             .Get<InstanceConfig>() ?? new();
 
         return new ChatContext(config);
     }
-}
+}

Foxchat.Chat/Database/Models/Channel.cs

@@ -0,0 +1,9 @@
+namespace Foxchat.Chat.Database.Models;
+
+public class Channel : BaseModel
+{
+    public Ulid GuildId { get; init; }
+    public Guild Guild { get; init; } = null!;
+    public string Name { get; set; } = null!;
+    public string? Topic { get; set; }
+}

Foxchat.Chat/Database/Models/Guild.cs

@@ -0,0 +1,11 @@
+namespace Foxchat.Chat.Database.Models;
+
+public class Guild : BaseModel
+{
+    public string Name { get; set; } = null!;
+    public Ulid OwnerId { get; set; }
+    public User Owner { get; set; } = null!;
+
+    public List<User> Users { get; } = [];
+    public List<Channel> Channels { get; } = [];
+}

Foxchat.Chat/Database/Models/IdentityInstance.cs

@@ -0,0 +1,17 @@
+namespace Foxchat.Chat.Database.Models;
+
+public class IdentityInstance : BaseModel
+{
+    public string Domain { get; init; } = null!;
+    public string BaseUrl { get; init; } = null!;
+    public string PublicKey { get; init; } = null!;
+
+    public InstanceStatus Status { get; set; } = InstanceStatus.Active;
+    public string? Reason { get; set; }
+
+    public enum InstanceStatus
+    {
+        Active,
+        Suspended,
+    }
+}

Foxchat.Chat/Database/Models/Message.cs

@@ -0,0 +1,15 @@
+using NodaTime;
+
+namespace Foxchat.Chat.Database.Models;
+
+public class Message : BaseModel
+{
+    public Ulid ChannelId { get; init; }
+    public Channel Channel { get; init; } = null!;
+    public Ulid AuthorId { get; init; }
+    public User Author { get; init; } = null!;
+    
+    public string? Content { get; set; }
+    
+    public Instant? UpdatedAt { get; set; }
+}

Foxchat.Chat/Database/Models/User.cs

@@ -0,0 +1,14 @@
+namespace Foxchat.Chat.Database.Models;
+
+public class User : BaseModel
+{
+    public Ulid InstanceId { get; init; }
+    public IdentityInstance Instance { get; init; } = null!;
+    public string RemoteUserId { get; init; } = null!;
+    public string Username { get; init; } = null!;
+
+    public string? Avatar { get; set; }
+
+    public List<Guild> Guilds { get; } = [];
+    public List<Guild> OwnedGuilds { get; } = [];
+}