nxy/bot/plugins/coins.py

# -*- coding: utf-8 -*-
import irc3
import requests
from docopt import Dict as DocOptDict
from irc3.plugins.command import command
from irc3.utils import IrcString

from . import Plugin


@irc3.plugin
class Coins(Plugin):
    requires = ['irc3.plugins.command']

    API_URL = 'https://api.cryptowat.ch/markets/coinbase/{crypto}{currency}/summary'
    CURRENCIES = {
        'usd': '$',
        'eur': '€',
        'eth': 'Ξ',
        'btc': '฿',
    }

    @command
    def btc(self, mask: IrcString, target: IrcString, args: DocOptDict):
        """Gets the Bitcoin values from cryptowatch.

        %%btc [<currency>]
        """
        return self._cryptowat_summary('btc', args.get('<currency>') or 'usd')

    @command
    def eth(self, mask: IrcString, target: IrcString, args: DocOptDict):
        """Gets the Ethereum values from cryptowatch.

        %%eth [<currency>]
        """
        return self._cryptowat_summary('eth', args.get('<currency>') or 'usd')

    def _cryptowat_summary(self, crypto: str, currency: str = 'usd'):
        # Check if valid currency + crypto2currency
        if currency not in self.CURRENCIES or crypto == currency:
            return

        # Send request to api
        data = requests.get(self.API_URL.format(crypto=crypto, currency=currency))
        if data:
            result = data.json()['result']
            return '\x02[{crypto}]\x0F ' \
                   'Current: \x02\x0307{currency}{last:,.2f}\x0F - ' \
                   'High: \x02\x0303{currency}{high:,.2f}\x0F - ' \
                   'Low: \x02\x0304{currency}{low:,.2f}\x0F - ' \
                   'Change: \x02\x0307{change:,.2f}%\x0F - ' \
                   'Volume: \x02\x0307{volume}\x0F' \
                .format(crypto=crypto.upper(),
                        currency=self.CURRENCIES[currency],
                        last=result['price']['last'],
                        high=result['price']['high'],
                        low=result['price']['low'],
                        change=result['price']['change']['percentage'] * 100,
                        volume=result['volume'])