Added new functions into Functions.cs and added help command for slash Commands.

DiscordBot/Bot/Commands/NormalCommands/Help.cs

@@ -0,0 +1,91 @@
+using System.Collections.Generic;
+
+using Discord;
+
+using PluginManager;
+using PluginManager.Interfaces;
+using PluginManager.Loaders;
+using PluginManager.Others;
+
+namespace DiscordBot.Bot.Commands;
+
+/// <summary>
+///     The help command
+/// </summary>
+internal class Help : DBCommand
+{
+    /// <summary>
+    ///     Command name
+    /// </summary>
+    public string Command => "help";
+
+    public List<string> Aliases => null;
+
+    /// <summary>
+    ///     Command Description
+    /// </summary>
+    public string Description => "This command allows you to check all loaded commands";
+
+    /// <summary>
+    ///     Command usage
+    /// </summary>
+    public string Usage => "help <command>";
+
+    /// <summary>
+    ///     Check if the command require administrator to be executed
+    /// </summary>
+    public bool requireAdmin => false;
+
+    /// <summary>
+    ///     The main body of the command
+    /// </summary>
+    /// <param name="context">The command context</param>
+    public void ExecuteServer(DBCommandExecutingArguments args)
+    {
+        if (args.arguments is not null)
+        {
+            var e = GenerateHelpCommand(args.arguments[0]);
+            if (e is null)
+                args.context.Channel.SendMessageAsync("Unknown Command " + args.arguments[0]);
+            else
+                args.context.Channel.SendMessageAsync(embed: e.Build());
+
+
+            return;
+        }
+
+        var embedBuilder = new EmbedBuilder();
+
+        var adminCommands = "";
+        var normalCommands = "";
+
+        foreach (var cmd in PluginLoader.Commands)
+            if (cmd.requireAdmin)
+                adminCommands += cmd.Command + " ";
+            else
+                normalCommands += cmd.Command + " ";
+
+
+        if (adminCommands.Length > 0)
+            embedBuilder.AddField("Admin Commands", adminCommands);
+        if (normalCommands.Length > 0)
+            embedBuilder.AddField("Normal Commands", normalCommands);
+        args.context.Channel.SendMessageAsync(embed: embedBuilder.Build());
+    }
+
+    private EmbedBuilder GenerateHelpCommand(string command)
+    {
+        var embedBuilder = new EmbedBuilder();
+        var cmd = PluginLoader.Commands.Find(p => p.Command == command ||
+                                                   (p.Aliases is not null && p.Aliases.Contains(command)));
+        if (cmd == null) return null;
+
+        embedBuilder.AddField("Usage", Config.Data["prefix"] + cmd.Usage);
+        embedBuilder.AddField("Description", cmd.Description);
+        if (cmd.Aliases is null)
+            return embedBuilder;
+        embedBuilder.AddField("Alias", cmd.Aliases.Count == 0 ? "-" : string.Join(", ", cmd.Aliases));
+
+        return embedBuilder;
+    }
+}