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101 lines
3.6 KiB
Python
Executable File
101 lines
3.6 KiB
Python
Executable File
"""Gilded Rose Refactoring Kata."""
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from __future__ import annotations
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AGED_BRIE: str = "Aged Brie"
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BACKSTAGE_PASSES: str = "Backstage passes"
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CONJURED: str = "Conjured"
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MAX_QUALITY: int = 50
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MIN_QUALITY: int = 0
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SULFURAS: str = "Sulfuras, Hand of Ragnaros"
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SULFURAS_QUALITY: int = 80
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class GildedRose:
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"""Manages inventory quality updates for the Gilded Rose inn.
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Updates item quality and sell_in values acording to specific business rules:
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- Normal items degrade in quality over time
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- "Aged Brie" increases in quality as it ages
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- "Sulfuras" is a legendary item that never changes
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- "Backstage passes" increase in quality as concert approaches, drop to 0 after
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- Quality is never negative and never exceeds 50 (except Sulfuras at 80)
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Goblin will throw a tantrum if the Item class is modified.
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"""
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def __init__(self, items: list[Item]) -> None:
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"""Initialize the GildedRose with a list of items.
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Parameters
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----------
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items : list[Item]
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The list of items in the inventory.
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"""
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self.items = items
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def update_quality(self) -> None:
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"""Update quality and sell_in for all items according to the business rules."""
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for item in self.items:
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if item.name != "Aged Brie" and item.name != "Backstage passes to a TAFKAL80ETC concert":
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if item.quality > 0:
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if item.name != "Sulfuras, Hand of Ragnaros":
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item.quality = item.quality - 1
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else:
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if item.quality < 50:
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item.quality = item.quality + 1
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if item.name == "Backstage passes to a TAFKAL80ETC concert":
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if item.sell_in < 11:
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if item.quality < 50:
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item.quality = item.quality + 1
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if item.sell_in < 6:
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if item.quality < 50:
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item.quality = item.quality + 1
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if item.name != "Sulfuras, Hand of Ragnaros":
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item.sell_in = item.sell_in - 1
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if item.sell_in < 0:
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if item.name != "Aged Brie":
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if item.name != "Backstage passes to a TAFKAL80ETC concert":
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if item.quality > 0:
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if item.name != "Sulfuras, Hand of Ragnaros":
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item.quality = item.quality - 1
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else:
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item.quality = item.quality - item.quality
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else:
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if item.quality < 50:
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item.quality = item.quality + 1
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class Item:
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"""Represents an item in the Gilded Rose inventory.
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This class must not be modidied cuz Goblin said so.
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"""
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def __init__(self, name: str, sell_in: int, quality: int) -> None:
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"""Initialize an item in the Gilded Rose inventory.
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Parameters
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----------
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name : str
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The item's name, which determines its update behavior.
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sell_in : int
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Number of days remaining to sell the item.
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quality : int
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Current quality value (0-50 for normal items, 80 for Sulfuras).
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"""
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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) -> str:
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"""Return a string representation of the item.
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Returns
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-------
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str
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A string describing the item with its name, sell_in, and quality.
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"""
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return f"{self.name}, {self.sell_in}, {self.quality}"
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