134 lines
5.3 KiB
Python
134 lines
5.3 KiB
Python
import requests
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import json
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import time
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from copy import deepcopy
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from googlefinance import getQuotes
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from lbrynet.conf import CURRENCIES
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import logging
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log = logging.getLogger(__name__)
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BITTREX_FEE = 0.0025
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SOURCE_TYPES = ['lbry_sd_hash', 'url', 'btih']
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BASE_METADATA_FIELDS = ['title', 'description', 'author', 'language', 'license', 'content-type', 'sources']
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OPTIONAL_METADATA_FIELDS = ['thumbnail', 'preview', 'fee', 'contact', 'pubkey']
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# v0.0.1 metadata
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METADATA_REVISIONS = {'0.0.1': {'required': BASE_METADATA_FIELDS, 'optional': OPTIONAL_METADATA_FIELDS}}
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# v0.0.2 metadata additions
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METADATA_REVISIONS['0.0.2'] = {'required': ['nsfw', 'ver'], 'optional': ['license_url']}
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CURRENT_METADATA_VERSION = '0.0.2'
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# v0.0.1 fee
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FEE_REVISIONS = {'0.0.1': {'required': ['amount', 'address'], 'optional': []}}
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CURRENT_FEE_REVISION = '0.0.1'
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class LBRYFeeFormat(dict):
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def __init__(self, fee_dict):
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dict.__init__(self)
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self.fee_version = None
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f = deepcopy(fee_dict)
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assert len(fee_dict) == 1
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for currency in fee_dict:
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assert currency in CURRENCIES, "Unsupported currency: %s" % str(currency)
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self.currency_symbol = currency
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self.update({currency: {}})
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for version in FEE_REVISIONS:
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for k in FEE_REVISIONS[version]['required']:
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assert k in fee_dict[currency], "Missing required fee field: %s" % k
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self[currency].update({k: f[currency].pop(k)})
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for k in FEE_REVISIONS[version]['optional']:
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if k in fee_dict[currency]:
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self[currency].update({k: f[currency].pop(k)})
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if not len(f):
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self.fee_version = version
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break
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assert f[currency] == {}, "Unknown fee keys: %s" % json.dumps(f.keys())
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self.amount = self[self.currency_symbol]['amount'] if isinstance(self[self.currency_symbol]['amount'], float) else float(self[self.currency_symbol]['amount'])
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self.address = self[self.currency_symbol]['address']
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class LBRYFee(LBRYFeeFormat):
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def __init__(self, fee_dict, rate_dict):
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LBRYFeeFormat.__init__(self, fee_dict)
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rates = deepcopy(rate_dict)
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assert 'BTCLBC' in rates and 'USDBTC' in rates
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for fx in rate_dict:
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assert int(time.time()) - int(rates[fx]['ts']) < 3600, "%s quote is out of date" % fx
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self._USDBTC = {'spot': rates['USDBTC']['spot'], 'ts': rates['USDBTC']['ts']}
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self._BTCLBC = {'spot': rates['BTCLBC']['spot'], 'ts': rates['BTCLBC']['ts']}
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def to_lbc(self):
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r = None
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if self.currency_symbol == "LBC":
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r = round(float(self.amount), 5)
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elif self.currency_symbol == "BTC":
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r = round(float(self._btc_to_lbc(self.amount)), 5)
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elif self.currency_symbol == "USD":
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r = round(float(self._btc_to_lbc(self._usd_to_btc(self.amount))), 5)
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assert r is not None
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return r
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def to_usd(self):
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r = None
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if self.currency_symbol == "USD":
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r = round(float(self.amount), 5)
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elif self.currency_symbol == "BTC":
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r = round(float(self._btc_to_usd(self.amount)), 5)
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elif self.currency_symbol == "LBC":
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r = round(float(self._btc_to_usd(self._lbc_to_btc(self.amount))), 5)
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assert r is not None
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return r
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def _usd_to_btc(self, usd):
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# log.error("usd to btc: " + str(usd))
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# log.error("%f * %f = %f" % (self._USDBTC['spot'], float(usd), self._USDBTC['spot'] * float(usd)))
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return self._USDBTC['spot'] * float(usd)
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def _btc_to_usd(self, btc):
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# log.error("btc to usd: " + str(btc))
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# log.error("%f / %f = %f" % (float(btc), self._USDBTC['spot'], float(btc) / self._USDBTC['spot']))
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return float(btc) / self._USDBTC['spot']
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def _btc_to_lbc(self, btc):
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# log.error("btc to lbc: " + str(btc))
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# log.error("%f * %f = %f" % (float(btc), self._BTCLBC['spot'], float(btc) * self._BTCLBC['spot'] / (1.0 - BITTREX_FEE)))
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return float(btc) * self._BTCLBC['spot'] / (1.0 - BITTREX_FEE)
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def _lbc_to_btc(self, lbc):
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# log.error("lbc to btc: " + str(lbc))
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# log.error("%f / %f = %f" % (self._BTCLBC['spot'], float(lbc), self._BTCLBC['spot'] / float(lbc)))
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return self._BTCLBC['spot'] / float(lbc)
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class Metadata(dict):
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def __init__(self, metadata):
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dict.__init__(self)
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self.metaversion = None
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m = deepcopy(metadata)
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assert "sources" in metadata, "No sources given"
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for source in metadata['sources']:
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assert source in SOURCE_TYPES, "Unknown source type"
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for version in METADATA_REVISIONS:
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for k in METADATA_REVISIONS[version]['required']:
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assert k in metadata, "Missing required metadata field: %s" % k
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self.update({k: m.pop(k)})
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for k in METADATA_REVISIONS[version]['optional']:
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if k == 'fee':
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pass
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elif k in metadata:
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self.update({k: m.pop(k)})
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if not len(m) or m.keys() == ['fee']:
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self.metaversion = version
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break
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if 'fee' in m:
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self['fee'] = LBRYFeeFormat(m.pop('fee'))
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assert m == {}, "Unknown metadata keys: %s" % json.dumps(m.keys())
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