93 lines
2.7 KiB
Python
93 lines
2.7 KiB
Python
from datetime import datetime, date
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import requests
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from flask import g
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from flask.json import JSONEncoder
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import settings
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def json_encoder(obj):
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if isinstance(obj, (datetime, date)):
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return obj.isoformat()
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raise TypeError ("Type %s not serializable" % type(obj))
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class Summary:
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@staticmethod
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def fetch_prices():
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if hasattr(g, 'wowfunding_prices') and g.wow_prices:
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return g.wow_prices
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from wowfunding.factory import cache
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cache_key = 'wowfunding_prices'
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data = cache.get(cache_key)
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if data:
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return data
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data = {
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'wow-btc': price_tradeogre_wow_btc(),
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'btc-usd': price_cmc_btc_usd()
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}
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cache.set(cache_key, data=data, expiry=7200)
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g.wow_prices = data
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return data
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@staticmethod
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def fetch_stats(purge=False):
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from wowfunding.factory import db_session
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from wowfunding.orm.orm import Proposal, User, Comment
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from wowfunding.factory import cache
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cache_key = 'wowfunding_stats'
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data = cache.get(cache_key)
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if data and not purge:
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return data
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categories = settings.FUNDING_CATEGORIES
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statuses = settings.FUNDING_STATUSES.keys()
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for cat in categories:
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q = db_session.query(Proposal)
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q = q.filter(Proposal.category == cat)
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res = q.count()
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data.setdefault('cats', {})
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data['cats'][cat] = res
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for status in statuses:
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q = db_session.query(Proposal)
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q = q.filter(Proposal.status == status)
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res = q.count()
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data.setdefault('statuses', {})
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data['statuses'][status] = res
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data.setdefault('users', {})
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data['users']['count'] = db_session.query(User.id).count()
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cache.set(cache_key, data=data, expiry=300)
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return data
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def price_cmc_btc_usd():
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headers = {'User-Agent': 'Mozilla/5.0 (Android 4.4; Mobile; rv:41.0) Gecko/41.0 Firefox/41.0'}
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try:
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r = requests.get('https://api.coinmarketcap.com/v2/ticker/1/?convert=USD', headers=headers)
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r.raise_for_status()
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return r.json().get('data', {}).get('quotes', {}).get('USD', {}).get('price')
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except:
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return
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def price_tradeogre_wow_btc():
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headers = {'User-Agent': 'Mozilla/5.0 (Android 4.4; Mobile; rv:41.0) Gecko/41.0 Firefox/41.0'}
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try:
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r = requests.get('https://tradeogre.com/api/v1/ticker/BTC-WOW', headers=headers)
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r.raise_for_status()
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return float(r.json().get('high'))
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except:
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return
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def wow_to_usd(wows: float, usd_per_btc: float, btc_per_wow: float):
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try:
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return round(usd_per_btc / (1.0 / (wows * btc_per_wow)), 2)
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except:
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pass |