79 lines
3.0 KiB
Python
79 lines
3.0 KiB
Python
from contextlib import suppress
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from distutils.version import StrictVersion
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from typing import Set, Union
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from ereuse_devicehub.resources.device.models import Device
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from ereuse_devicehub.resources.enums import RatingSoftware
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from ereuse_devicehub.resources.event.models import AggregateRate, EreusePrice, Rate, \
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WorkbenchRate
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from ereuse_devicehub.resources.event.rate.workbench import v1_0
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RATE_TYPES = {
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WorkbenchRate: {
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RatingSoftware.ECost: {
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'1.0': v1_0.Rate()
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},
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RatingSoftware.EMarket: {
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}
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}
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}
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def rate(device: Device, rate: Rate):
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"""
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Rates the passed-in ``rate`` using values from the rate itself
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and the ``device``.
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This method mutates ``rate``.
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:param device: The device to use as a model.
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:param rate: A half-filled rate.
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"""
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cls = rate.__class__
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assert cls in RATE_TYPES, 'Rate type {} not supported.'.format(cls)
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assert rate.software in RATE_TYPES[cls], 'Rate soft {} not supported.'.format(rate.software)
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assert str(rate.version) in RATE_TYPES[cls][rate.software], \
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'Rate version {} not supported.'.format(rate.version)
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RATE_TYPES[cls][rate.software][str(rate.version)].compute(device, rate)
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def main(rating_model: WorkbenchRate,
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software: RatingSoftware,
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version: StrictVersion) -> Set[Union[WorkbenchRate, AggregateRate, EreusePrice]]:
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"""
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Generates all the rates (per software and version) for a given
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half-filled rate acting as a model, and finally it generates
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an ``AggregateRating`` with the rate that matches the
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``software`` and ``version``.
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This method mutates ``rating_model`` by fulfilling it and
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``rating_model.device`` by adding the new rates.
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:return: A set of rates with the ``rate`` value computed, where
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the first rate is the ``rating_model``.
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"""
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assert rating_model.device
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events = set()
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for soft, value in RATE_TYPES[rating_model.__class__].items():
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for vers, func in value.items():
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if not rating_model.rating: # Fill the rating before creating another rate
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rating = rating_model
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else: # original rating was filled already; use a new one
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rating = WorkbenchRate(
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labelling=rating_model.labelling,
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appearance_range=rating_model.appearance_range,
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functionality_range=rating_model.functionality_range,
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device=rating_model.device,
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)
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rating.software = soft
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rating.version = vers
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rate(rating_model.device, rating)
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events.add(rating)
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if soft == software and vers == version:
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aggregation = AggregateRate.from_workbench_rate(rating)
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events.add(aggregation)
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with suppress(ValueError):
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# We will have exception if range == VERY_LOW
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events.add(EreusePrice(aggregation))
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return events
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