Making it so that you can get the people's avatar greyscaled

cogs/info.py

@@ -15,16 +15,18 @@
 # along with this program. If not, see <https://www.gnu.org/licenses/>.
 
 import datetime
+import io
 import string
 from asyncio.subprocess import Process
 from platform import python_version
 from time import time
 from typing import Optional, Union
 
-from discord import Embed, Role
+from PIL import Image
+from discord import Embed, Role, File
 from discord import Member, TextChannel
 from discord import __version__ as discord_version
-from discord.ext.commands import BucketType, cooldown, bot_has_permissions, guild_only, Cog
+from discord.ext.commands import bot_has_permissions, guild_only, Cog, group
 from discord.ext.commands import command
 from psutil import Process, virtual_memory
 
@@ -436,8 +438,7 @@ class Info(Cog):
 
         await ctx.send(embed=stats)
 
-    @command(name="avatar")
-    @cooldown(1, 1, BucketType.user)
+    @group(name="avatar", invoke_without_command=True, case_insensitive=True, usage="`[member]|<greyscale> [member]`")
     @bot_has_permissions(embed_links=True)
     async def get_user_avatar(self, ctx, *, member: Optional[Member] = None):
         """
@@ -460,6 +461,32 @@ class Info(Cog):
 
         await ctx.send(embed=embed)
 
+    @get_user_avatar.command(name="greyscale", aliases=["gs"])
+    @bot_has_permissions(embed_links=True)
+    async def greyscale_user_avatar(self, ctx, *, member: Optional[Member] = None):
+        """Get the greyscale avatar of the member"""
+
+        # Get member mentioned or set to author
+        member = ctx.author if not member else member
+
+        attach = await member.avatar_url.read()
+        image = Image.open(io.BytesIO(attach)).convert('LA')
+
+        # Save new grayscale image as bytes
+        file = io.BytesIO()
+        image.save(file, format='PNG')
+        file.seek(0)
+
+        # Send image in an embed
+        f = File(file, "image.png")
+        embed = Embed(title=f"{member}'s Avatar | Greyscale",
+                      colour=self.bot.admin_colour,
+                      timestamp=datetime.datetime.utcnow())
+        embed.set_image(url="attachment://image.png")
+        embed.set_footer(text=f"Requested by {ctx.author}", icon_url=ctx.author.avatar_url)
+
+        await ctx.send(file=f, embed=embed)
+
 
 def setup(bot):
     bot.add_cog(Info(bot))