import asyncio
import discord
import sys, os
import praw
import random
import re
import json, requests
import warnings
from discord.ext import commands
from sympy import latex, symbols, preview, Symbol #for LaTeX images
import youtube_dl

class General(commands.Cog):
	"""Overal toegestaan."""

	def __init__(self, bot):
		self.bot = bot
		self.voice_states = {}
		self.muzak_url = 'https://hdcon-muzak.herokuapp.com'
		self.r = praw.Reddit(
			user_agent='StroopwafelBot',
			client_secret=os.getenv("STROOP_REDDIT_SECRET"),
			client_id=os.getenv("STROOP_REDDIT_ID")
		)
		self.r.read_only = True
		warnings.simplefilter("ignore")

	def __check(self, ctx): #Todo: Is dit het porno kanaal?
		return True

	@commands.command()
	@asyncio.coroutine
	def huge(self, ctx, *, arg):
		"""YUGE. Geeft een grote versie van de gegeven emoji terug. Werkt alleen voor custom emoji.
		Bijvoorbeeld:
		!huge :ancilla:
		"""
		id = re.search("\<\:([A-z]*)\:(\d*)\>", arg)
		hugemoji = 'https://cdn.discordapp.com/emojis/' + id.group(2) + '.png'
		em = discord.Embed(title=id.group(1), type='photo')
		em.set_image(url=hugemoji)
		try:
			yield from ctx.message.delete()
		except:
			print("No permission to delete message")
		yield from ctx.channel.send(ctx.author.mention, embed=em)

	@commands.command()
	@asyncio.coroutine 
	def tex(self, ctx, *, arg):
		"""Geeft een mooi LaTeX plaatje terug.
		Bijvoorbeeld: 
		!tex Je moeder is lelijk! $a^b b^c \\rightarrow d$
		"""
		preamble = "\\documentclass[10pt]{article}\\pagestyle{empty}\\usepackage[margin=1in]{geometry}\\usepackage{amsmath, amsfonts}\\begin{document}" #\\usepackage{CJKutf8}\\usepackage[T1]{fontenc}\\usepackage[english]{babel}
		options = ["-T", "tight", "-z", "9", "--truecolor", "-D", "512"]
		preview(r''+arg+'', viewer='file', filename='test.png', dvioptions=options, preamble=preamble)
		#file = open('test.png', 'rb')
		#yield from ctx.channel.send(file, filename ='test.png', content='')
		try:
			yield from ctx.message.delete()
		except:
			print("No permission to delete message")
		yield from ctx.channel.send(ctx.author.mention, file=discord.File('test.png', 'tex.png'))

	def get_aww_post(self):
		raww = self.r.subreddit('aww+catloaf+tuckedinkitties+babyelephantgifs+babybigcatgifs+blep+holdmynip+gingerkitty+cathighfive+catsstandingup+catsareassholes+eyebleach')
		listing = list(raww.top(time_filter='month'))
		return random.choice(listing)

	@commands.command(pass_context=True)
	@asyncio.coroutine
	def aww(self, ctx):
		""" iets schattigs... """
		post = self.get_aww_post()
		try:
			yield from ctx.message.delete()
		except:
			print("No permission to delete message")
		yield from ctx.channel.send(ctx.author.mention + ' ' + post.url)

	def get_kopieerpasta(self):
		rkopieerpasta = self.r.subreddit('kopieerpasta')
		post = rkopieerpasta.random()

		# Subreddits kunnen de random functie uitzetten, dus dit is de fallback:
		if post == None:
			listing = list(rkopieerpasta.top('month', limit=250))
			post = random.choice(listing)

		return post

	@commands.command(pass_context=True)
	@asyncio.coroutine
	def kopieerpasta(self, ctx):
		"""Een willekeurige shitpost"""
		post = self.get_kopieerpasta()
		print(post.url)
		ATTEMPTS = 10
		a = 0
		while len(post.selftext + post.title) >= 1990 and a < ATTEMPTS:
			post = self.get_kopieerpasta()
			print(post.url)
			a += 1
		try:
			yield from ctx.message.delete()
		except:
			print("No permission to delete message")

		if len(post.selftext + post.title) < 1990:
			yield from ctx.channel.send('**'+post.title+'**```'+post.selftext+'```')
		else:
			yield from ctx.channel.send("Geen kopieerpasta voor jou vandaag.")
	
	@commands.command(pass_context=True)
	@asyncio.coroutine
	def gif(self, ctx, yt: str, start: str="0", duration: str="5", res: str="320", fps: int=10):
		""" Giffify. Tijdelijk uitgeschakeld.
		"""
		try:
			yield from ctx.message.delete()
		except:
			print("No permission to delete message")
		yield from ctx.channel.send(
			ctx.author.mention +
			"""
Welkom bij de stroopwafel GIF hotline!
Deze functionaliteit is momenteel helaas offline voor onderhoud. Gelukkig is vergelijkbare functionaliteit ook elders beschikbaar:
Op <https://gifrun.com/> kunt u bijvoorbeeld via een web-interface gifjes maken van youtube-filmpjes. Geavanceerde gebruikers kunnen u ook <https://youtube-dl.org/> proberen, waarna u gifjes kan genereren via bijvoorbeeld <https://ezgif.com/>.

Namens de directie van Stroopwafel B.V. onze excuses voor dit ongemak.""")

	def get_playlist_json(self):
		return requests.get(self.muzak_url + '/stroopwafel')

	@commands.command(pass_context=True)
	@asyncio.coroutine
	def playlist(self, ctx):
		"""HDcon2021 playlist"""
		data = json.loads(self.get_playlist_json().content)
		msg = 'Stemmen en nomineren kan hier: {}\n'.format(self.muzak_url)
		msg += '*Er zijn al {} nummers genomineerd*\n'.format(data['stemCount'])
		yield from ctx.channel.send(msg)

	@commands.command(pass_context=True, hidden=True)
	@asyncio.coroutine 
	def reboot(self, ctx, password=""):
		""" Reboot.. """
		if password == os.getenv("STROOP_RESET_PASSWORD"):
			yield from ctx.channel.send("Rebooting.. brb!")
			os.execv(sys.executable, ['python3'] + sys.argv)
		else:
			yield from ctx.channel.send(ctx.author.mention + " What's the magic word?")