mirror of
https://github.com/emilybache/GildedRose-Refactoring-Kata.git
synced 2026-02-04 17:21:38 +00:00
94 lines
2.7 KiB
Python
Executable File
94 lines
2.7 KiB
Python
Executable File
class GildedRose(object):
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def __init__(self, items):
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self.items = [self._create_specific_item(item) for item in items]
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def _create_specific_item(self, item):
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"""
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:param item: Take param as Item object
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:return: Specified Item object based on specification.
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"""
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if item.name.startswith("Aged Brie"):
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return AgedBrieItem(item.name, item.sell_in, item.quality)
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elif item.name.startswith("Sulfuras"):
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return SulfurasItem(item.name, item.sell_in, item.quality)
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elif item.name.startswith("Backstage"):
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return BackstagePassItem(item.name, item.sell_in, item.quality)
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elif item.name.startswith("Conjured"):
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return ConjuredItem(item.name, item.sell_in, item.quality)
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else:
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return NormalItem(item.name, item.sell_in, item.quality)
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def update_quality(self):
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for item in self.items:
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item.update_quality()
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class Item:
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def __init__(self, name, sell_in, quality):
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self.name = name
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self.sell_in = sell_in
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self.quality = quality
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def __repr__(self):
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return "%s, %s, %s" % (self.name, self.sell_in, self.quality)
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def update_quality(self):
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self.sell_in -= 1
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if self.quality > 0:
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self.quality -= 1
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if self.sell_in < 0 and self.quality > 0:
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self.quality -= 1
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def _decrease_quality(self, amount=1):
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# Setting minimum quality to zero.
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self.quality = max(0, self.quality - amount)
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def _increase_quality(self, amount=1):
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# Setting a limit to 50 as described in spec
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self.quality = min(50, self.quality + amount)
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class NormalItem(Item):
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pass
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class AgedBrieItem(Item):
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def update_quality(self):
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self.sell_in -= 1
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self._increase_quality() # It increases in quality as per spec
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if self.sell_in < 0:
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self._increase_quality() # It increases in quality by double after sell_in passes as per spec
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class SulfurasItem(Item):
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def update_quality(self):
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# It never changes any attributes
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pass
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class BackstagePassItem(Item):
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def update_quality(self):
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self.sell_in -= 1
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self._increase_quality()
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if self.sell_in < 10:
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self._increase_quality()
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if self.sell_in < 5:
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self._increase_quality()
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if self.sell_in < 0:
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self.quality = 0
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class ConjuredItem(Item):
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def update_quality(self):
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self.sell_in -= 1
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self._decrease_quality(2) # It degrades twice as fast normal items
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if self.sell_in < 0:
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self._decrease_quality(2) # It degrades twice as fast normal items
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