OpenSource/GildedRose-Refactoring-Kata
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Implement CommandFactory

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This commit is contained in:
Kacper Majczak 2022-09-12 14:32:37 +02:00
parent 448e7f04a6
commit d18f1c7e6f
1 changed files with 51 additions and 22 deletions
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73
php/src/GildedRose.php
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@ -6,44 +6,65 @@ namespace GildedRose;
final class GildedRose
{
private const SULFURAS_HAND_OF_RAGNAROS = 'Sulfuras, Hand of Ragnaros';
private const BACKSTAGE_PASSES_TO_A_TAFKAL_80_ETC_CONCERT = 'Backstage passes to a TAFKAL80ETC concert';
private const AGED_BRIE = 'Aged Brie';
/**
* @var Item[]
*/
private $items;
private CommandFactory $commandFactory;
public function __construct(array $items)
{
$this->items = $items;
$this->commandFactory = new CommandFactory();
}
public function updateQuality(): void
{
foreach ($this->items as $item) {
if ($item->name === self::AGED_BRIE) {
(new AgedBrieCommand())->execute($item);
}
$command = $this->commandFactory->createFor($item->name);
if ($item->name === self::BACKSTAGE_PASSES_TO_A_TAFKAL_80_ETC_CONCERT) {
(new BackstageCommand())->execute($item);
}
if (in_array($item->name,
[
self::AGED_BRIE,
self::BACKSTAGE_PASSES_TO_A_TAFKAL_80_ETC_CONCERT,
self::SULFURAS_HAND_OF_RAGNAROS
]
) === false) {
(new NormalCommand())->execute($item);
}
$command->execute($item);
}
}
}
final class AgedBrieCommand
interface Command
{
public function execute(Item $item): void;
}
final class CommandFactory
{
private const SULFURAS_HAND_OF_RAGNAROS = 'Sulfuras, Hand of Ragnaros';
private const BACKSTAGE_PASSES_TO_A_TAFKAL_80_ETC_CONCERT = 'Backstage passes to a TAFKAL80ETC concert';
private const AGED_BRIE = 'Aged Brie';
public function createFor(string $itemName): Command
{
if ($itemName === self::AGED_BRIE) {
return new AgedBrieCommand();
}
if ($itemName === self::BACKSTAGE_PASSES_TO_A_TAFKAL_80_ETC_CONCERT) {
return new BackstageCommand();
}
if (in_array($itemName,
[
self::AGED_BRIE,
self::BACKSTAGE_PASSES_TO_A_TAFKAL_80_ETC_CONCERT,
self::SULFURAS_HAND_OF_RAGNAROS
]
) === false) {
return new NormalCommand();
}
return new NoopCommand();
}
}
final class AgedBrieCommand implements Command
{
public function execute(Item $item): void
{
@ -56,7 +77,7 @@ final class AgedBrieCommand
}
}
final class BackstageCommand
final class BackstageCommand implements Command
{
public function execute(Item $item): void
{
@ -78,7 +99,7 @@ final class BackstageCommand
}
}
final class NormalCommand
final class NormalCommand implements Command
{
public function execute(Item $item): void
{
@ -88,4 +109,12 @@ final class NormalCommand
$item->decreaseQuality();
}
}
}
final class NoopCommand implements Command
{
public function execute(Item $item): void
{
// noop
}
}