Renamed the bot from KickBot -> ChatBot and removed the reference to Kick in the project name

KfChatDotNetBot/Commands/WhoisCommand.cs

@@ -0,0 +1,30 @@
+using System.Text.RegularExpressions;
+using KfChatDotNetBot.Models.DbModels;
+using KfChatDotNetWsClient.Models.Events;
+using Microsoft.EntityFrameworkCore;
+
+namespace KfChatDotNetBot.Commands;
+
+public class WhoisCommand : ICommand
+{
+    public List<Regex> Patterns => [
+        new Regex("^whois (?<user>.+)")
+    ];
+
+    public string HelpText => "Lookup user IDs by username";
+    public bool HideFromHelp => false;
+    public UserRight RequiredRight => UserRight.Guest;
+
+    public async Task RunCommand(ChatBot botInstance, MessageModel message, GroupCollection arguments, CancellationToken ctx)
+    {
+        await using var db = new ApplicationDbContext();
+        var query = arguments["user"].Value.TrimStart('@').TrimEnd(',').TrimEnd();
+        var user = await db.Users.FirstOrDefaultAsync(u => u.KfUsername == query, cancellationToken: ctx);
+        if (user == null)
+        {
+            botInstance.SendChatMessage($"Requested user '{query}' does not exist. (Note this is case-sensitive)", true);
+            return;
+        }
+        botInstance.SendChatMessage($"@{message.Author.Username}, {user.KfUsername}'s ID is {user.KfId}", true);
+    }
+}