Refactor: Implement WHOIS lookup command with detailed domain information retrieval

cogs/who.is.py

@@ -0,0 +1,39 @@
+import discord
+from discord import app_commands
+from discord.ext import commands
+import whois
+
+class Whois(commands.Cog):
+    def __init__(self, bot):
+        self.bot = bot
+
+    @app_commands.command(name="whois", description="Lookup WHOIS info for a domain")
+    @app_commands.describe(domain="The domain to lookup (e.g. example.com)")
+    async def whois(self, interaction: discord.Interaction, domain: str):
+        await interaction.response.defer()
+        try:
+            w = await self.bot.loop.run_in_executor(None, whois.whois, domain)
+        except Exception as e:
+            await interaction.followup.send(f"Failed to fetch WHOIS info: {e}")
+            return
+        if not w or not w.domain_name:
+            await interaction.followup.send("Could not find WHOIS info for that domain.")
+            return
+        # Prepare a summary of WHOIS info
+        info = []
+        for key in ["domain_name", "registrar", "creation_date", "expiration_date", "name_servers", "status"]:
+            value = getattr(w, key, None)
+            if value:
+                info.append(f"**{key.replace('_', ' ').title()}:** {value}")
+        text = "\n".join(info)
+        if not text:
+            text = "No WHOIS info available."
+        embed = discord.Embed(
+            title=f"WHOIS info for {domain}",
+            description=text,
+            color=discord.Color.blue()
+        )
+        await interaction.followup.send(embed=embed)
+
+async def setup(bot):
+    await bot.add_cog(Whois(bot))