Experimenting with source generators

.gitignore

@@ -3,6 +3,8 @@
 ##
 ## Get latest from `dotnet new gitignore`
 
+Generated/
+
 # dotenv files
 .env
 

Discord.API/DataTypes/ChannelData.cs

@@ -0,0 +1,20 @@
+using System.Text.Json.Serialization;
+
+namespace Discord.API;
+
+public class ChannelData
+{
+    [JsonRequired]
+    public ulong Id;
+    [JsonRequired]
+    public int Type;
+    public ulong? GuildId;
+    public int? Position;
+    public string? Name;
+    public string? Topic;
+    public bool? Nsfw;
+    public ulong? LastMessageId;
+    public int? Bitrate;
+    public ulong? ParentId;
+    //TODO: Missing fields
+}

Discord.API/DataTypes/PartialApplicationData.cs

@@ -0,0 +1,12 @@
+using System.Text.Json.Serialization;
+
+namespace Discord.API;
+
+public sealed class PartialApplicationData
+{
+    [JsonRequired]
+    public ulong Id;
+    
+    [JsonRequired]
+    public ulong Flags;
+}

Discord.API/DataTypes/UnavailableGuildData.cs

@@ -0,0 +1,11 @@
+using System.Text.Json.Serialization;
+
+namespace Discord.API;
+
+public sealed class UnavailableGuildData
+{
+    [JsonRequired]
+    public ulong Id;
+    [JsonRequired]
+    public bool Unavailable;
+}

Discord.API/DataTypes/UserData.cs

@@ -0,0 +1,16 @@
+using System.Text.Json.Serialization;
+#pragma warning disable CS8618 // Non-nullable field must contain a non-null value when exiting constructor. Consider declaring as nullable.
+
+namespace Discord.API;
+
+public sealed class UserData
+{
+    [JsonRequired]
+    public ulong Id;
+    [JsonRequired]
+    public string Username;
+    [JsonRequired]
+    public string Discriminator;
+    public string? GlobalName;
+    //TODO More fields
+}

Discord.API/Discord.API.csproj

@@ -0,0 +1,36 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+    <RootNamespace>api</RootNamespace>
+  </PropertyGroup>
+
+  <PropertyGroup>
+    <JsonSerializerIsReflectionEnabledByDefault>false</JsonSerializerIsReflectionEnabledByDefault>
+  </PropertyGroup>
+
+  <PropertyGroup>
+    <EmitCompilerGeneratedFiles>true</EmitCompilerGeneratedFiles>
+    <CompilerGeneratedFilesOutputPath>Generated</CompilerGeneratedFilesOutputPath>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Serilog" Version="4.0.0" />
+    <PackageReference Include="Websocket.Client" Version="5.1.2" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <Compile Remove="Generated\**" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <EmbeddedResource Remove="Generated\**" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <None Remove="Generated\**" />
+  </ItemGroup>
+
+</Project>

Discord.API/GatewayPacketTypes/DispatchPacket/ChannelCreatePacket.cs

@@ -0,0 +1,12 @@
+using System.Text.Json.Serialization;
+#pragma warning disable CS8618 // Non-nullable field must contain a non-null value when exiting constructor. Consider declaring as nullable.
+
+namespace Discord.API;
+
+[JsonDerivedType(typeof(DispatchPacket), "CHANNEL_CREATE")]
+public class ChannelCreatePacket : DispatchPacket
+{
+    [JsonRequired]
+    [JsonPropertyName("d")]
+    public ChannelData Data;
+}

Discord.API/GatewayPacketTypes/DispatchPacket/ChannelDeletePacket.cs

@@ -0,0 +1,12 @@
+using System.Text.Json.Serialization;
+#pragma warning disable CS8618 // Non-nullable field must contain a non-null value when exiting constructor. Consider declaring as nullable.
+
+namespace Discord.API;
+
+[JsonDerivedType(typeof(DispatchPacket), "CHANNEL_DELETE")]
+public class ChannelDeletePacket : DispatchPacket
+{
+    [JsonRequired]
+    [JsonPropertyName("d")]
+    public ChannelData Data;
+}

Discord.API/GatewayPacketTypes/DispatchPacket/ChannelUpdatePacket.cs

@@ -0,0 +1,12 @@
+using System.Text.Json.Serialization;
+#pragma warning disable CS8618 // Non-nullable field must contain a non-null value when exiting constructor. Consider declaring as nullable.
+
+namespace Discord.API;
+
+[JsonDerivedType(typeof(DispatchPacket), "CHANNEL_UPDATE")]
+public class ChannelUpdatePacket : DispatchPacket
+{
+    [JsonRequired]
+    [JsonPropertyName("d")]
+    public ChannelData Data;
+}

Discord.API/GatewayPacketTypes/DispatchPacket/DispatchPacket.cs

@@ -0,0 +1,16 @@
+using System.Text.Json.Serialization;
+#pragma warning disable CS8618 // Non-nullable field must contain a non-null value when exiting constructor. Consider declaring as nullable.
+
+namespace Discord.API;
+
+[JsonDerivedType(typeof(GatewayPacket), (int)Opcode.Dispatch)]
+[JsonPolymorphic(IgnoreUnrecognizedTypeDiscriminators = true, TypeDiscriminatorPropertyName = "t", UnknownDerivedTypeHandling = JsonUnknownDerivedTypeHandling.FallBackToBaseType)]
+public class DispatchPacket : GatewayPacket
+{
+    [JsonPropertyName("t")]
+    [JsonRequired]
+    public string Event;
+    
+    [JsonPropertyName("s")]
+    public ulong? Sequence;
+}

Discord.API/GatewayPacketTypes/DispatchPacket/ReadyPacket.cs

@@ -0,0 +1,33 @@
+using System.Text.Json.Serialization;
+#pragma warning disable CS8618 // Non-nullable field must contain a non-null value when exiting constructor. Consider declaring as nullable.
+
+namespace Discord.API;
+
+[JsonDerivedType(typeof(DispatchPacket), "READY")]
+public class ReadyPacket : DispatchPacket
+{
+    public sealed class ReadyData
+    {
+        [JsonPropertyName("v")]
+        public int Version;
+        
+        [JsonRequired]
+        public UserData User;
+    
+        [JsonRequired]
+        public UnavailableGuildData Guilds;
+        
+        [JsonRequired]
+        public string SessionId;
+        
+        [JsonRequired]
+        public string ResumeUrl;
+        
+        [JsonRequired]
+        public PartialApplicationData Application;
+    }
+    
+    [JsonRequired]
+    [JsonPropertyName("d")]
+    public ReadyData Data;
+}

Discord.API/GatewayPacketTypes/GatewayPacket.cs

@@ -0,0 +1,26 @@
+using System.Text.Json.Serialization;
+
+namespace Discord.API;
+
+[JsonPolymorphic(IgnoreUnrecognizedTypeDiscriminators = false, TypeDiscriminatorPropertyName = "op", UnknownDerivedTypeHandling = JsonUnknownDerivedTypeHandling.FallBackToBaseType)]
+public class GatewayPacket
+{
+    public enum Opcode
+    {
+        Dispatch = 0,
+        Heartbeat = 1,
+        Identify = 2,
+        PresenceUpdate = 3,
+        VoiceStateUpdate = 4,
+        Resume = 6,
+        Reconnect = 7,
+        RequestGuildMembers = 8,
+        InvalidSession = 9,
+        Hello = 10,
+        HeartbeatAck = 11
+    }
+    
+    [JsonRequired]
+    [JsonPropertyName("op")]
+    public Opcode Op;
+}

Discord.API/GatewayPacketTypes/IdentifyPacket.cs

@@ -0,0 +1,36 @@
+using System.Text.Json.Serialization;
+
+namespace Discord.API;
+
+//[JsonDerivedType(typeof(GatewayPacket), (int)Opcode.Identify)]
+public class IdentifyPacket : GatewayPacket
+{
+    public sealed class IdentifyData
+    {
+        public class PropertiesClass
+        {
+            public string Os => Environment.OSVersion.ToString();
+            public string Browser => StaticProperties.LibraryName;
+            public string Device => StaticProperties.LibraryName;
+            private PropertiesClass() { }
+            public static PropertiesClass Instance { get; } = new PropertiesClass();
+        }
+        
+        [JsonInclude]
+        [JsonRequired]
+        [JsonPropertyName("token")]
+        public required string Token { get; set; }
+        [JsonInclude]
+        public PropertiesClass Properties => PropertiesClass.Instance;
+        [JsonInclude]
+        public bool Compress => false;
+        public int LargeThreshold = 250;
+        public int[]? Shard = null;
+        //presence
+        public ulong Intents { get; init; }
+
+    }
+    
+    [JsonPropertyName("d")]
+    public IdentifyData Data;
+}

Discord.API/IDiscordApi.cs

@@ -0,0 +1,20 @@
+namespace Discord.API;
+
+public interface IDiscordApi
+{
+    public void OpenConnection();
+    public void Close();
+
+    public delegate void DiscordEventHandler<in T>(IDiscordApi sender, T data, LifeTime lifetime);
+
+    /*public event DiscordEventHandler<JObject>? OnReady;
+    public event DiscordEventHandler<JObject>? OnChannelCreate;
+    public event DiscordEventHandler<JObject>? OnChannelUpdate;
+    public event DiscordEventHandler<JObject>? OnChannelDelete;
+
+    public event DiscordEventHandler<JObject>? OnGuildCreate;
+    public event DiscordEventHandler<JObject>? OnGuildUpdate;
+    public event DiscordEventHandler<JObject>? OnGuildDelete;*/
+    
+    
+}

Discord.API/LifeTime.cs

@@ -0,0 +1,13 @@
+namespace Discord.API;
+
+public class LifeTime
+{
+    public virtual bool IsValid => true;
+    public virtual bool IsInfinite => true;
+
+    protected LifeTime()
+    {}
+
+    internal static LifeTime Infinite { get; } = new LifeTime();
+    internal static SingleEventLifeTime SingleEvent => new SingleEventLifeTime();
+}

Discord.API/SingleEventLifeTime.cs

@@ -0,0 +1,13 @@
+namespace Discord.API;
+
+public class SingleEventLifeTime : LifeTime
+{
+    private bool _valid = true;
+    public override bool IsValid => _valid;
+    public override bool IsInfinite => false;
+
+    internal void Terminate()
+    {
+        _valid = false;
+    }
+}

Discord.API/SourceGenerationContext.cs

@@ -0,0 +1,13 @@
+using System.Text.Json.Serialization;
+using System.Text.Json.Serialization.Metadata;
+
+namespace Discord.API;
+
+using System.Text.Json;
+
+[JsonSourceGenerationOptions(IgnoreReadOnlyFields = false, IgnoreReadOnlyProperties = false, IncludeFields = true, PropertyNamingPolicy = JsonKnownNamingPolicy.SnakeCaseLower)]
+[JsonSerializable(typeof(GatewayPacket))]
+[JsonSerializable(typeof(IdentifyPacket))]
+internal partial class SourceGenerationContext : JsonSerializerContext
+{
+}

Discord.API/StaticProperties.cs

@@ -0,0 +1,8 @@
+namespace Discord.API;
+
+public class StaticProperties
+{
+    public static string LibraryName => "Custom C# Discord Library";
+    public static string LibraryVersion => "0.1 alpha";
+    public static string LibraryWebsite => "https://laci0503.duckdns.org/laci0503/DiscordApi";
+}

discord_api.sln

@@ -3,6 +3,12 @@ Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio Version 17
 VisualStudioVersion = 17.0.31903.59
 MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "model", "model\model.csproj", "{2FA8D012-CC43-4FBC-9520-CF627AB4BBEA}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Discord.API", "Discord.API\Discord.API.csproj", "{5C77661B-670F-400B-AF77-E3EC062B673D}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "example_bot", "example_bot\example_bot.csproj", "{331F5928-8E65-4782-8311-BC1E80F1C002}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -11,4 +17,18 @@ Global
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
 	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{2FA8D012-CC43-4FBC-9520-CF627AB4BBEA}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{2FA8D012-CC43-4FBC-9520-CF627AB4BBEA}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{2FA8D012-CC43-4FBC-9520-CF627AB4BBEA}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{2FA8D012-CC43-4FBC-9520-CF627AB4BBEA}.Release|Any CPU.Build.0 = Release|Any CPU
+		{5C77661B-670F-400B-AF77-E3EC062B673D}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{5C77661B-670F-400B-AF77-E3EC062B673D}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{5C77661B-670F-400B-AF77-E3EC062B673D}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{5C77661B-670F-400B-AF77-E3EC062B673D}.Release|Any CPU.Build.0 = Release|Any CPU
+		{331F5928-8E65-4782-8311-BC1E80F1C002}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{331F5928-8E65-4782-8311-BC1E80F1C002}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{331F5928-8E65-4782-8311-BC1E80F1C002}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{331F5928-8E65-4782-8311-BC1E80F1C002}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
 EndGlobal

example_bot/Program.cs

@@ -0,0 +1,2 @@
+// See https://aka.ms/new-console-template for more information
+Console.WriteLine("Hello, World!");

example_bot/example_bot.csproj

@@ -0,0 +1,10 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net8.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>

model/Class1.cs

@@ -0,0 +1,6 @@
+namespace model;
+
+public class Class1
+{
+
+}

model/model.csproj

@@ -0,0 +1,9 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>