6 files changed, 247 insertions(+), 0 deletions(-)

A Local/NosSmooth.ChatCommands/ChatCommandInterceptor.cs
A Local/NosSmooth.ChatCommands/ChatCommandsOptions.cs
A Local/NosSmooth.ChatCommands/FeedbackService.cs
A Local/NosSmooth.ChatCommands/NosSmooth.ChatCommands.csproj
A Local/NosSmooth.ChatCommands/ServiceCollectionExtensions.cs
M NosSmooth.sln

@@ 0,0 1,92 @@
+//
+//  ChatCommandInterceptor.cs
+//
+//  Copyright (c) František Boháček. All rights reserved.
+//  Licensed under the MIT license. See LICENSE file in the project root for full license information.
+
+using System.Reflection.Emit;
+using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.Options;
+using NosSmooth.Core.Extensions;
+using NosSmooth.LocalClient;
+using NosSmooth.Packets.Enums;
+using NosSmooth.Packets.Enums.Chat;
+using NosSmooth.Packets.Server.Chat;
+using Remora.Commands.Services;
+
+namespace NosSmooth.ChatCommands;
+
+/// <summary>
+/// Handles commands in the chat.
+/// </summary>
+public class ChatCommandInterceptor : IPacketInterceptor
+{
+    private readonly CommandService _commandService;
+    private readonly IServiceProvider _serviceProvider;
+    private readonly FeedbackService _feedbackService;
+    private readonly ILogger<ChatCommandInterceptor> _logger;
+    private readonly ChatCommandsOptions _options;
+
+    /// <summary>
+    /// Initializes a new instance of the <see cref="ChatCommandInterceptor"/> class.
+    /// </summary>
+    /// <param name="options">The options.</param>
+    /// <param name="commandService">The command service.</param>
+    /// <param name="serviceProvider">The services.</param>
+    /// <param name="feedbackService">The feedback service.</param>
+    /// <param name="logger">The logger.</param>
+    public ChatCommandInterceptor
+    (
+        IOptions<ChatCommandsOptions> options,
+        CommandService commandService,
+        IServiceProvider serviceProvider,
+        FeedbackService feedbackService,
+        ILogger<ChatCommandInterceptor> logger
+    )
+    {
+        _commandService = commandService;
+        _serviceProvider = serviceProvider;
+        _feedbackService = feedbackService;
+        _logger = logger;
+        _options = options.Value;
+    }
+
+    /// <inheritdoc />
+    public bool InterceptSend(ref string packet)
+    {
+        ReadOnlySpan<char> span = packet;
+        if (span.StartsWith("say ") && span.Slice(4).StartsWith(_options.Prefix))
+        {
+            var command = span.Slice(4 + _options.Prefix.Length).ToString();
+            Task.Run(async () => await ExecuteCommand(command));
+            return false;
+        }
+
+        return true;
+    }
+
+    /// <inheritdoc />
+    public bool InterceptReceive(ref string packet)
+    {
+        return true;
+    }
+
+    private async Task ExecuteCommand(string command)
+    {
+        var preparedResult = await _commandService.TryPrepareCommandAsync(command, _serviceProvider);
+        if (!preparedResult.IsSuccess)
+        {
+            _logger.LogError($"Could not prepare \"{command}\"");
+            _logger.LogResultError(preparedResult);
+            await _feedbackService.SendErrorMessageAsync($"Could not prepare the given command. {preparedResult.Error.Message}");
+        }
+
+        var executeResult = await _commandService.TryExecuteAsync(preparedResult.Entity, _serviceProvider);
+        if (!executeResult.IsSuccess)
+        {
+            _logger.LogError($"Could not execute \"{command}\"");
+            _logger.LogResultError(executeResult);
+            await _feedbackService.SendErrorMessageAsync($"Could not execute the given command. {executeResult.Error.Message}");
+        }
+    }
+}<
\ No newline at end of file

@@ 0,0 1,18 @@
+//
+//  ChatCommandsOptions.cs
+//
+//  Copyright (c) František Boháček. All rights reserved.
+//  Licensed under the MIT license. See LICENSE file in the project root for full license information.
+
+namespace NosSmooth.ChatCommands;
+
+/// <summary>
+/// Options for <see cref="ChatCommandInterceptor"/>.
+/// </summary>
+public class ChatCommandsOptions
+{
+    /// <summary>
+    /// Gets or sets the command prefix.
+    /// </summary>
+    public string Prefix { get; set; } = "#";
+}<
\ No newline at end of file

@@ 0,0 1,68 @@
+//
+//  FeedbackService.cs
+//
+//  Copyright (c) František Boháček. All rights reserved.
+//  Licensed under the MIT license. See LICENSE file in the project root for full license information.
+
+using NosSmooth.Core.Client;
+using NosSmooth.Packets.Enums;
+using NosSmooth.Packets.Enums.Chat;
+using NosSmooth.Packets.Server.Chat;
+using Remora.Results;
+
+namespace NosSmooth.ChatCommands;
+
+/// <summary>
+/// Feedback for chat commands.
+/// </summary>
+public class FeedbackService
+{
+    private readonly INostaleClient _client;
+
+    /// <summary>
+    /// Initializes a new instance of the <see cref="FeedbackService"/> class.
+    /// </summary>
+    /// <param name="client">The nostale client.</param>
+    public FeedbackService(INostaleClient client)
+    {
+        _client = client;
+
+    }
+
+    /// <summary>
+    /// Send message error.
+    /// </summary>
+    /// <param name="message">The message to send.</param>
+    /// <param name="ct">The cancellation token for cancelling the operation.</param>
+    /// <returns>A result that may or may not have succeeded.</returns>
+    public Task<Result> SendErrorMessageAsync(string message, CancellationToken ct = default)
+        => SendMessageAsync(message, SayColor.Red, ct);
+
+    /// <summary>
+    /// Send message success.
+    /// </summary>
+    /// <param name="message">The message to send.</param>
+    /// <param name="ct">The cancellation token for cancelling the operation.</param>
+    /// <returns>A result that may or may not have succeeded.</returns>
+    public Task<Result> SendSuccessMessageAsync(string message, CancellationToken ct = default)
+        => SendMessageAsync(message, SayColor.Green, ct);
+
+    /// <summary>
+    /// Send message info.
+    /// </summary>
+    /// <param name="message">The message to send.</param>
+    /// <param name="ct">The cancellation token for cancelling the operation.</param>
+    /// <returns>A result that may or may not have succeeded.</returns>
+    public Task<Result> SendInfoMessageAsync(string message, CancellationToken ct = default)
+        => SendMessageAsync(message, SayColor.Default, ct);
+
+    /// <summary>
+    /// Send message with the given color.
+    /// </summary>
+    /// <param name="message">The message to send.</param>
+    /// <param name="color">The color.</param>
+    /// <param name="ct">The cancellation token for cancelling the operation.</param>
+    /// <returns>A result that may or may not have succeeded.</returns>
+    public Task<Result> SendMessageAsync(string message, SayColor color, CancellationToken ct = default)
+        => _client.ReceivePacketAsync(new SayPacket(EntityType.Map, 0, color, message), ct);
+}<
\ No newline at end of file

@@ 0,0 1,18 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+    <PropertyGroup>
+        <TargetFramework>net6.0</TargetFramework>
+        <ImplicitUsings>enable</ImplicitUsings>
+        <Nullable>enable</Nullable>
+    </PropertyGroup>
+
+    <ItemGroup>
+      <ProjectReference Include="..\NosSmooth.LocalClient\NosSmooth.LocalClient.csproj" />
+    </ItemGroup>
+
+    <ItemGroup>
+      <PackageReference Include="Microsoft.Extensions.Configuration.Abstractions" Version="6.0.0" />
+      <PackageReference Include="Remora.Commands" Version="9.0.0" />
+    </ItemGroup>
+
+</Project>

@@ 0,0 1,36 @@
+//
+//  ServiceCollectionExtensions.cs
+//
+//  Copyright (c) František Boháček. All rights reserved.
+//  Licensed under the MIT license. See LICENSE file in the project root for full license information.
+
+using Microsoft.Extensions.DependencyInjection;
+using NosSmooth.LocalClient;
+using NosSmooth.LocalClient.Extensions;
+using Remora.Commands.Extensions;
+
+namespace NosSmooth.ChatCommands;
+
+/// <summary>
+/// Extension methods for <see cref="IServiceCollection"/>.
+/// </summary>
+public static class ServiceCollectionExtensions
+{
+    /// <summary>
+    /// Adds NosTale commands and the interceptor to execute commands with.
+    /// </summary>
+    /// <param name="serviceCollection">The service collection.</param>
+    /// <param name="prefix">The prefix for the commands.</param>
+    /// <returns>The collection.</returns>
+    public static IServiceCollection AddNostaleChatCommands(this IServiceCollection serviceCollection, string prefix = "#")
+    {
+        serviceCollection
+            .Configure<ChatCommandsOptions>((o) => o.Prefix = prefix);
+
+        return serviceCollection
+            .AddCommands()
+            .Configure<LocalClientOptions>(o => o.AllowIntercept = true)
+            .AddSingleton<FeedbackService>()
+            .AddPacketInterceptor<ChatCommandInterceptor>();
+    }
+}<
\ No newline at end of file

@@ 62,6 62,8 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "NosSmooth.Packets", "Packet
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "NosSmooth.PacketSerializer.Abstractions", "Packets\NosSmooth.PacketSerializer.Abstractions\NosSmooth.PacketSerializer.Abstractions.csproj", "{CF03BCEA-EB5B-427F-8576-7DA7EB869BDC}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "NosSmooth.ChatCommands", "Local\NosSmooth.ChatCommands\NosSmooth.ChatCommands.csproj", "{7DC7FC22-EFA6-4EB0-8E75-99F746E50F6E}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU


@@ 312,6 314,18 @@ Global
 		{CF03BCEA-EB5B-427F-8576-7DA7EB869BDC}.Release|x64.Build.0 = Release|Any CPU
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 		{CF03BCEA-EB5B-427F-8576-7DA7EB869BDC}.Release|x86.Build.0 = Release|Any CPU
+		{7DC7FC22-EFA6-4EB0-8E75-99F746E50F6E}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{7DC7FC22-EFA6-4EB0-8E75-99F746E50F6E}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{7DC7FC22-EFA6-4EB0-8E75-99F746E50F6E}.Debug|x64.ActiveCfg = Debug|Any CPU
+		{7DC7FC22-EFA6-4EB0-8E75-99F746E50F6E}.Debug|x64.Build.0 = Debug|Any CPU
+		{7DC7FC22-EFA6-4EB0-8E75-99F746E50F6E}.Debug|x86.ActiveCfg = Debug|Any CPU
+		{7DC7FC22-EFA6-4EB0-8E75-99F746E50F6E}.Debug|x86.Build.0 = Debug|Any CPU
+		{7DC7FC22-EFA6-4EB0-8E75-99F746E50F6E}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{7DC7FC22-EFA6-4EB0-8E75-99F746E50F6E}.Release|Any CPU.Build.0 = Release|Any CPU
+		{7DC7FC22-EFA6-4EB0-8E75-99F746E50F6E}.Release|x64.ActiveCfg = Release|Any CPU
+		{7DC7FC22-EFA6-4EB0-8E75-99F746E50F6E}.Release|x64.Build.0 = Release|Any CPU
+		{7DC7FC22-EFA6-4EB0-8E75-99F746E50F6E}.Release|x86.ActiveCfg = Release|Any CPU
+		{7DC7FC22-EFA6-4EB0-8E75-99F746E50F6E}.Release|x86.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE


@@ 337,6 351,7 @@ Global
 		{C4DAFD83-C6DC-4597-AA1F-BA2F3ABB612C} = {54A49AC2-55B3-4156-8023-41C56719EBB5}
 		{86B4ED0C-CD28-4C6C-B58E-B4B1F7AAD683} = {54A49AC2-55B3-4156-8023-41C56719EBB5}
 		{CF03BCEA-EB5B-427F-8576-7DA7EB869BDC} = {54A49AC2-55B3-4156-8023-41C56719EBB5}
+		{7DC7FC22-EFA6-4EB0-8E75-99F746E50F6E} = {6078AE6E-7CD0-48E4-84E0-EB164D8881DA}
 	EndGlobalSection
 	GlobalSection(ExtensibilityGlobals) = postSolution
 		SolutionGuid = {C5F46653-4DEC-429B-8580-4ED18ED9B4CA}