OpenSource/GildedRose-Refactoring-Kata
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- Code Refactoring

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This commit is contained in:
Manali Mogre 2020-08-17 20:14:47 +02:00
parent d363612674
commit db0db19d5d
7 changed files with 22 additions and 13 deletions
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2
swift/Sources/GildedRose/CustomisedItemFactory.swift
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@ -8,10 +8,12 @@
import Foundation import Foundation
protocol CustomisedItem { protocol CustomisedItem {
var item: Item {get set}
func updateItemState() func updateItemState()
} }
class CustomisedItemFactory { class CustomisedItemFactory {
// Returns the Customised Item based on the Item name
func getCustomisedItem(item: Item) -> CustomisedItem { func getCustomisedItem(item: Item) -> CustomisedItem {
switch item.name { switch item.name {
case ItemNameConstants.kAgedBrieItem: case ItemNameConstants.kAgedBrieItem:

6
swift/Sources/GildedRose/ItemQualityUpdater.swift
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@ -7,8 +7,7 @@
import Foundation import Foundation
protocol ItemQualityUpdater { protocol ItemQualityUpdater: CustomisedItem {
var item: Item {get set}
} }
extension ItemQualityUpdater { extension ItemQualityUpdater {
@ -32,3 +31,6 @@ extension ItemQualityUpdater {
item.quality = value item.quality = value
} }
} }
typealias ItemStateUpdater = ItemSellInUpdater & ItemQualityUpdater

3
swift/Sources/GildedRose/ItemSellInUpdater.swift
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@ -7,8 +7,7 @@
import Foundation import Foundation
protocol ItemSellInUpdater { protocol ItemSellInUpdater: CustomisedItem{
var item: Item { get set }
func reduceSellInDays(by days: Int) func reduceSellInDays(by days: Int)
} }

6
swift/Sources/GildedRose/Items/AgedBrieItem.swift
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@ -7,15 +7,15 @@
import Foundation import Foundation
struct AgedBrieItem: CustomisedItem, ItemSellInUpdater, ItemQualityUpdater { struct AgedBrieItem: ItemStateUpdater{
var item: Item var item: Item
public init(item: Item) { public init(item: Item) {
self.item = item self.item = item
} }
func updateItemState() { func updateItemState() {
// update the sell in days // update the sell in days. Reduce the Sell In days by 1
reduceSellInDays(by: 1) reduceSellInDays(by: 1)
// Increment the Item quality by 1 if the quality is less than 50 // Increment the Item quality by 1 if the quality is less than 50

11
swift/Sources/GildedRose/Items/BackstagePassesItem.swift
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@ -7,7 +7,7 @@
import Foundation import Foundation
struct BackstagePassesItem: CustomisedItem, ItemQualityUpdater, ItemSellInUpdater { struct BackstagePassesItem: ItemStateUpdater {
var item: Item var item: Item
public init(item: Item) { public init(item: Item) {
@ -15,23 +15,26 @@ struct BackstagePassesItem: CustomisedItem, ItemQualityUpdater, ItemSellInUpdate
} }
func updateItemState() { func updateItemState() {
// Reduce the Sell in days by 1
reduceSellInDays(by: 1) reduceSellInDays(by: 1)
// If the sell in date id passed, sets the quality of item to 0
guard !isSellInDatePassed else { guard !isSellInDatePassed else {
setItemQuality(to: ValueConstants.kLowestQualityValue) setItemQuality(to: ValueConstants.kLowestQualityValue)
return return
} }
// If the Quality of item is above 50, return
guard isItemUnderHighestQuality else { guard isItemUnderHighestQuality else {
setItemQuality(to: ValueConstants.kHightestQualityValue) setItemQuality(to: ValueConstants.kHightestQualityValue)
return return
} }
switch item.sellIn { switch item.sellIn {
case 10...: case 10...:
increaseItemQuality(by: 1) increaseItemQuality(by: 1) // If the sell in days is more than 10, increase quality by 1
case 5..<10: case 5..<10:
increaseItemQuality(by: 2) increaseItemQuality(by: 2) // If sell in days is between 5 and 10, increase quality by 2
case 0..<5: case 0..<5:
increaseItemQuality(by: 3) increaseItemQuality(by: 3) // If sell in days is between 0 and 5, increase quality by 3
default: default:
break break
} }

6
swift/Sources/GildedRose/Items/StandardItem.swift
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@ -7,7 +7,7 @@
import Foundation import Foundation
struct StandardItem: CustomisedItem, ItemQualityUpdater, ItemSellInUpdater { struct StandardItem: ItemStateUpdater {
var item: Item var item: Item
public init(item: Item) { public init(item: Item) {
@ -18,9 +18,11 @@ struct StandardItem: CustomisedItem, ItemQualityUpdater, ItemSellInUpdater {
// Reduce the sellIn days for Item by 1 // Reduce the sellIn days for Item by 1
reduceSellInDays(by: 1) reduceSellInDays(by: 1)
// Reduce the item quality by 1 , if the sell in date is passed decrement by 2 // Reduce the item quality by 1 , if the sell in date is passed decrement by double the value
isSellInDatePassed ? reduceItemQuality(by: decreasingValueForZeroOrLessDaysToSell()) : reduceItemQuality(by: decreasingValueOverZeroDaysToSell()) isSellInDatePassed ? reduceItemQuality(by: decreasingValueForZeroOrLessDaysToSell()) : reduceItemQuality(by: decreasingValueOverZeroDaysToSell())
guard isItemMoreThanLowestQuality else { guard isItemMoreThanLowestQuality else {
// Sets the quality to zero if the quality is negative
setItemQuality(to: ValueConstants.kLowestQualityValue) setItemQuality(to: ValueConstants.kLowestQualityValue)
return return
} }

1
swift/Sources/GildedRose/Items/SulfurasItem.swift
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@ -15,5 +15,6 @@ struct SulfurasItem: CustomisedItem {
} }
func updateItemState() { func updateItemState() {
// No code as there is no change in quality or sell in days of sulfuras item // No code as there is no change in quality or sell in days of sulfuras item
return
} }
} }