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import os
from io import BytesIO

import aiohttp
import discord
from discord.ext import commands
from PIL import Image

from bot.utils import spookifications


class SpookyAvatar:

    """
    A cog that spookifies an avatar.
    """

    def __init__(self, bot):
        self.bot = bot

    async def get(self, url):
        """
        Returns the contents of the supplied url.
        """
        async with aiohttp.ClientSession() as session:
            async with session.get(url) as resp:
                return await resp.read()

    @commands.command(name='savatar', aliases=['spookyavatar', 'spookify'],
                      brief='Spookify an user\'s avatar.')
    async def spooky_avatar(self, ctx, user: discord.Member = None):
        """
        A command to print the user's spookified avatar.
        """
        if user is None:
            user = ctx.message.author

        async with ctx.typing():
            embed = discord.Embed(colour=0xFF0000)
            embed.title = "Is this you or am I just really paranoid?"
            embed.set_author(name=str(user.name), icon_url=user.avatar_url)
            resp = await self.get(user.avatar_url)
            im = Image.open(BytesIO(resp))
            modified_im = spookifications.get_random_effect(im)
            modified_im.save(str(ctx.message.id)+'.png')
            f = discord.File(str(ctx.message.id)+'.png')
            embed.set_image(url='attachment://'+str(ctx.message.id)+'.png')

        await ctx.send(file=f, embed=embed)
        os.remove(str(ctx.message.id)+'.png')


def setup(bot):
    bot.add_cog(SpookyAvatar(bot))