import asyncio
import discord
from discord.ext import commands
from pprint import pprint
import time
import numpy as np
import random

class Points(object):
	"""Geef elkaar punten!"""
	
	def __init__(self, bot):
		self.bot = bot
		self.voice_states = {}
		
		#a = discord.get_channel(self.bot.hdChannels["shitpost"])
		#pprint(a)
		
	def __check(self, ctx):
		return True
		
	@commands.command(pass_context=True, hidden=False)
	@asyncio.coroutine	
	def geefpunten(self, ctx, user, points: int):
		"""Wees eens lief. Geef iemand wat punten.
		Bijvoorbeeld:
		!geefpunten @ikbenjp 42
		Let op: je moet iemand taggen om punten uit te delen
		"""
		
		if points == 0:
			yield from ctx.channel.send("0 punten? Gul hoor.")	
			return
		if points < 0:
			yield from ctx.channel.send("Doeslief. Je mag (nog) geen punten afnemen.")	
			return
		
		if user[0:2] != "<@":
			try:
				yield from ctx.message.delete()
				yield from ctx.message.author.send("Je moet iemand taggen om punten te geven. :)")
				#TODO ook userId oid toestaan?
			except:
				print("No permission to delete message or send DM")
			return
				
		userObj = self.bot.get_user( int(user.replace("<@", "").replace(">", "")) )
		
		if not self.isUserOnList(userObj):
			yield from ctx.channel.send("Nee. Die krijgt geen punten.")	
			return
		if self.getUserBalance(ctx.author) < points:
			yield from ctx.channel.send("Daar heb jij niet genoeg puntjes voor. :bell:")	
			return
		
		self.transferPoints(ctx.author, userObj, points)

		message = self.getMessageForAwardingPoints(ctx.author.name, userObj.name, points)
		yield from ctx.channel.send(message)	
	
	
	@commands.command(pass_context=True, hidden=False)
	@asyncio.coroutine	
	def puntentelling(self, ctx):
		"""Hoeveel punten heeft iedereen?
		"""
		
		#TODO format
		#TODO sort
		message = "De puntentelling: \n"
		pointsCount = np.load('pointscount.npy').item()
		for user in pointsCount:
			message += str(pointsCount[user]["points"]) + "   " + pointsCount[user]["name"] + "\n"
		yield from ctx.channel.send(message)	
		
		
	# Transfer points form one user to another
	def transferPoints(self, fromUser, toUser, points):
		pointsCount = np.load('pointscount.npy').item()
		pointsCount[fromUser.id]["points"] -= points
		pointsCount[toUser.id]["points"]   += points
		np.save("pointscount.npy", pointsCount)
		print(pointsCount) 
		
	# Do we know this user?	
	def isUserOnList(self, user):
		pointsCount = np.load('pointscount.npy').item()
		return user.id in pointsCount.keys()
		
	# Get a user's point balance
	def getUserBalance(self, user):
		pointsCount = np.load('pointscount.npy').item()
		return pointsCount[user.id]["points"]
		
	# Generate a semi-random text to tell somebody they got some shiny new points
	def getMessageForAwardingPoints(self, userNameFrom: str, userNameTo: str,  points: int):
		p = str(points)
		messages = [
				p + " punten voor " + userNameTo + ".",
				userNameTo + " krijgt " + p + " punten.",
				userNameTo + " krijgt " + p + " punten van " + userNameFrom,
				p + " POINTS TO GRYFFINDO.. oh.. " + userNameTo + ".",
				userNameTo + ", jij krijgt " + p + " puntjes van " + userNameFrom + ". Lief he? :heart:",
				"+" + p + " punten voor " + userNameTo + "! Highscore!",
				userNameTo + ", alsjeblieft, " + p + " punten.",
				"Hier zijn " + p + " punten, " + userNameTo + ". Don't spend it all in one place...",
				"Jij kan wel " + p + " punten gebruiken, " + userNameTo + ".",
				p + " blockchain smartcontract punten voor " + userNameTo + ". :rocket: "
			]
		return messages[random.randint(0, len(messages)-1)]
	
	
	def init(self):
		# Check if points file exists:
		try:
			pointsCount = np.load('pointscount.npy').item()
		except FileNotFoundError:
			np.save("pointscount.npy", {})
			pointsCount = np.load('pointscount.npy').item()
			
		memberList = self.bot.get_channel(self.bot.hdChannels["shitpost"]).members
		for member in memberList:
			# Give new members 100 points
			if member.id not in pointsCount.keys() and not member.bot:
				pointsCount[member.id] = {"name": member.name, "points": 100}
				np.save("pointscount.npy", pointsCount)