import asyncio
import discord
from discord.ext import commands
from urllib import request
import json, requests

class Cryptocoin(object):
	"""Voor al uw crypto currency advies."""
	
	def __init__(self, bot):
		self.bot = bot
		self.voice_states = {}
	def __check(self, ctx): #Todo: Is dit het geld-verdienen kanaal?
		return True
	
	def getCoinPrice(self, coinId, currencyId="USD", time="now"):
		url = "https://min-api.cryptocompare.com/data/pricehistorical?tsyms=" + currencyId + "&fsym=" + coinId
				
		if (time != "now"):
			url += "&ts=" + str(time)
		
		response = requests.get(url)
		
		try:
			priceData = json.loads(response.content.decode('utf-8'))
			return priceData[coinId][currencyId]
		except:
			return -1
			
	@commands.command(pass_context=True)
	@asyncio.coroutine
	def coinprice(self, ctx, coinId: str, currencyId: str="USD"):
		"""Geeft de huidige prijs van de desbetreffende crypto currency
		Bijv: 
		!coinprice BTC
		Of voor de echte (Erik) Hollanders:
		!coinprice NLG EUR
		"""
		allowedCurrencies = ["USD", "EUR", "JPY", "GBP", "CNY", "CAD", "BTC"]
		
		if (currencyId not in allowedCurrencies):
			yield from ctx.channel.send("Valuta " + currencyId + " ken ik niet. :disappointed: ")
			return
		
		price = self.getCoinPrice(coinId, currencyId)
		
		if (price == -1):
			yield from ctx.channel.send("Die cryptocoin ken ik niet... :frowning2: ")
			return
		
		yield from ctx.channel.send(coinId + " is nu " + str(price) + " " + currencyId + " waard.")