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54 lines
1.8 KiB
Elm
54 lines
1.8 KiB
Elm
module GildedRose exposing (Item, update_quality)
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type alias Item =
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{ name : String
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, sell_by : Int
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, quality : Int
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}
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update_quality : List Item -> List Item
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update_quality items =
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List.map
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(\item ->
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if item.name == "Aged Brie" || item.name == "Backstage passes to a TAFKAL80ETC concert" then
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if item.quality < 50 then
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if item.name == "Backstage passes to a TAFKAL80ETC concert" then
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if item.sell_by < 0 then
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{ item | sell_by = item.sell_by - 1, quality = 0 }
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else if item.sell_by < 6 then
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{ item | sell_by = item.sell_by - 1, quality = item.quality + 3 }
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else if item.sell_by < 11 then
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{ item | sell_by = item.sell_by - 1, quality = item.quality + 2 }
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else
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{ item | sell_by = item.sell_by - 1, quality = item.quality + 1 }
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else
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{ item | sell_by = item.sell_by - 1, quality = item.quality + 1 }
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else
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{ item | sell_by = item.sell_by }
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else if item.name /= "Aged Brie" && item.name /= "Sulfuras, Hand of Ragnaros" then
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if item.sell_by < 0 && item.quality > 0 then
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if item.quality >= 2 then
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{ item | sell_by = item.sell_by - 1, quality = item.quality - 2 }
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else
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{ item | sell_by = item.sell_by - 1, quality = 0 }
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else if item.quality >= 1 then
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{ item | sell_by = item.sell_by - 1, quality = item.quality - 1 }
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else
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{ item | sell_by = item.sell_by - 1, quality = 0 }
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else
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item
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)
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items
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