75 lines
2.5 KiB
Python
75 lines
2.5 KiB
Python
# ===============================================================================
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# Copyright (C) 2010 Diego Duclos
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# Copyright (C) 2011 Anton Vorobyov
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#
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# This file is part of eos.
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#
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# eos is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Lesser General Public License as published by
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# the Free Software Foundation, either version 2 of the License, or
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# (at your option) any later version.
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#
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# eos is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public License
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# along with eos. If not, see <http://www.gnu.org/licenses/>.
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# ===============================================================================
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from enum import IntEnum, unique
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from time import time
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from logbook import Logger
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VALIDITY = 24 * 60 * 60 # Price validity period, 24 hours
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REREQUEST = 4 * 60 * 60 # Re-request delay for failed fetches, 4 hours
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TIMEOUT = 15 * 60 # Network timeout delay for connection issues, 15 minutes
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pyfalog = Logger(__name__)
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@unique
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class PriceStatus(IntEnum):
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initialized = 0
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notSupported = 1
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fetchSuccess = 2
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fetchFail = 3
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fetchTimeout = 4
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class Price:
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def __init__(self, typeID):
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self.typeID = typeID
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self.time = 0
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self.price = 0
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self.status = PriceStatus.initialized
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def isValid(self, validityOverride=None):
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# Always attempt to update prices which were just initialized, and prices
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# of unsupported items (maybe we start supporting them at some point)
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if self.status in (PriceStatus.initialized, PriceStatus.notSupported):
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return False
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elif self.status == PriceStatus.fetchSuccess:
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return time() <= self.time + (validityOverride if validityOverride is not None else VALIDITY)
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elif self.status == PriceStatus.fetchFail:
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return time() <= self.time + REREQUEST
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elif self.status == PriceStatus.fetchTimeout:
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return time() <= self.time + TIMEOUT
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else:
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return False
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def update(self, status, price=0):
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# Keep old price if we failed to fetch new one
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if status in (PriceStatus.fetchFail, PriceStatus.fetchTimeout):
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price = self.price
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elif status != PriceStatus.fetchSuccess:
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price = 0
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self.time = time()
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self.price = price
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self.status = status
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