from discord.ext import commands

from .utils import config
from .utils import checks

import aiohttp
import re
import json
import pendulum

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

getter = re.compile(r'`(?!`)(.*?)`')
multi = re.compile(r'```(.*?)```', re.DOTALL)


class Strawpoll:
    """This class is used to create new strawpoll """
    
    def __init__(self, bot):
        self.bot = bot
        self.url = 'https://strawpoll.me/api/v2/polls'
        self.headers = {'User-Agent': 'Bonfire/1.0.0',
                        'Content-Type': 'application/json'}
        self.session = aiohttp.ClientSession()
        
    def __unload(self):
        self.bot.loop.create_task(self.session.close())

    
    @commands.group(aliases=['strawpoll','poll','polls'], pass_context=True, invoke_without_command=True)
    @checks.customPermsOrRole(send_messages=True)
    async def strawpolls(self, ctx, poll_id: int=None):
        """This command can be used to show a strawpoll setup on this server"""
        all_polls = config.getContent('strawpolls') or {}
        server_polls = all_polls.get(ctx.message.server.id)
        if not server_polls:
            await self.bot.say("There are currently no strawpolls running on this server!")
            return
        if not poll_id:
            fmt = "\n".join("{}: https://strawpoll.me/{}".format(title, id) for id, title in server_polls.items())
            await self.bot.say("```\n{}```".format(fmt))
        elif poll_id in server_polls.keys():
            poll = server_polls[poll_id]
            
            async with self.session.get("{}/{}".format(self.url, str(poll_id)), headers=self.headers) as response:
                data = await response.json()
                
            fmt_options = "\n\t".join("{}: {}".format(data['options'][i], data['votes'][i]) for i in range(data['options']))
            fmt = "Link: {}\nTitle: {}\nAuthor: {}\nCreated: {}\nOptions:\n\t{}".format("https://strawpoll.me{}".format(
                    str(poll_id)), data['title'], poll['author'],(pendulum.parse(poll['date'])-pendulum.utcnow()).in_words(),fmt_options)
            await self.bot.say("```\n{}```".format(fmt))
            
    
    @strawpolls.command(name='create', aliases=['setup', 'add'], pass_context=True)
    @checks.customPermsOrRole(kick_members=True)
    async def create_strawpoll(self, ctx, title, *, options):
        """This command is used to setup a new strawpoll
        The format needs to be: poll create "title here" all options here
        Options need to be separated by using either one ` around each option
        Or use a code block (3 ` around the options), each option on it's own line"""
        match_single = getter.findall(options)
        match_multi = multi.findall(options)
        if match_single:
            options = match_single
            options = [option for option in options if option]
        elif match_multi:
            options = match_multi[0].splitlines()
            options = [option for option in options if option]
        else:
            await self.bot.say("Please provide options for a new strawpoll! Use {}help if you do not know the format".format(ctx.prefix))
            return
        payload = {'title': title,
                    'options': options}
        async with self.session.post(self.url, data=json.dumps(payload), headers=self.headers) as response:
            data = await response.json()
            
        all_polls = config.getContent('strawpolls') or {}
        server_polls = all_polls.get(ctx.message.server.id)
        server_polls[data['id']] = {'author': ctx.message.author,'date': pendulum.utcnow()}
        all_polls[ctx.message.server.id] = server_polls
        config.saveContent('strawpolls',all_polls)
        await self.bot.say("Link for your new strawpoll: https://strawpoll.me/{}".format(data['id']))