OpenSource/GildedRose-Refactoring-Kata
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Move update_quality into src/gilded_rose.gleam

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chiroptical 2024-06-06 19:43:22 -04:00
parent c9f4526554
commit 9f9971ebac
5 changed files with 115 additions and 110 deletions
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5
gleam/src/cli.gleam
View File

@ -1,11 +1,12 @@
import argv
import gilded_rose_item.{type GildedRose}
import gleam/function
import gleam/io
import glint
import glint/flag
import test_fixture.{simulate}
pub fn run_cli_app() {
pub fn run_cli_app(modify_inventory: fn(GildedRose) -> GildedRose) {
let days_flag = "days"
let number_of_days =
@ -18,7 +19,7 @@ pub fn run_cli_app() {
let assert Ok(number_of_days) =
flag.get_int(from: input.flags, for: days_flag)
simulate(number_of_days)
simulate(number_of_days, modify_inventory)
}
let app =

105
gleam/src/gilded_rose.gleam
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@ -1,5 +1,108 @@
import cli
import gilded_rose_item.{type GildedRose, type Item, Item}
import gleam/list
pub fn update_quality(inventory: GildedRose) -> GildedRose {
let update_quality_item = fn(item: Item) {
let new_quality = case
item.name != "Aged Brie"
&& item.name != "Backstage passes to a TAFKAL80ETC concert"
{
True -> {
case item.quality > 0 {
True ->
case item.name != "Sulfuras, Hand of Ragnaros" {
True -> item.quality - 1
False -> item.quality
}
False -> item.quality
}
}
False -> {
case item.quality < 50 {
True ->
item.quality
+ 1
+ case item.name == "Backstage passes to a TAFKAL80ETC concert" {
True ->
case item.sell_in < 11 {
True -> {
case item.quality < 49 {
True ->
1
+ case item.sell_in < 6 {
True ->
case item.quality < 48 {
True -> 1
False -> 0
}
False -> 0
}
False -> 0
}
}
False -> 0
}
False -> 0
}
False -> item.quality
}
}
}
let new_sell_in = case item.name != "Sulfuras, Hand of Ragnaros" {
True -> item.sell_in - 1
False -> item.sell_in
}
case new_sell_in < 0 {
True ->
case item.name != "Aged Brie" {
True ->
case item.name != "Backstage passes to a TAFKAL80ETC concert" {
True ->
case new_quality > 0 {
True ->
case item.name != "Sulfuras, Hand of Ragnaros" {
True ->
Item(
..item,
sell_in: new_sell_in,
quality: new_quality - 1,
)
False -> Item(..item, sell_in: new_sell_in, quality: 80)
}
False ->
Item(..item, sell_in: new_sell_in, quality: new_quality)
}
False ->
Item(
..item,
sell_in: new_sell_in,
quality: new_quality - new_quality,
)
}
False ->
case new_quality < 50 {
True ->
Item(..item, sell_in: new_sell_in, quality: new_quality + 1)
False -> Item(..item, sell_in: new_sell_in, quality: 50)
}
}
False ->
case item.name == "Sulfuras, Hand of Ragnaros" {
True -> Item(..item, sell_in: new_sell_in, quality: 80)
False ->
case new_quality > 50 {
True -> Item(..item, sell_in: new_sell_in, quality: 50)
False -> Item(..item, sell_in: new_sell_in, quality: new_quality)
}
}
}
}
list.map(inventory, update_quality_item)
}
pub fn main() {
cli.run_cli_app()
cli.run_cli_app(update_quality)
}

103
gleam/src/gilded_rose_item.gleam
View File

@ -1,109 +1,6 @@
import gleam/list
pub type GildedRose =
List(Item)
pub type Item {
Item(name: String, sell_in: Int, quality: Int)
}
pub fn update_quality(inventory: GildedRose) -> GildedRose {
let update_quality_item = fn(item: Item) {
let new_quality = case
item.name != "Aged Brie"
&& item.name != "Backstage passes to a TAFKAL80ETC concert"
{
True -> {
case item.quality > 0 {
True ->
case item.name != "Sulfuras, Hand of Ragnaros" {
True -> item.quality - 1
False -> item.quality
}
False -> item.quality
}
}
False -> {
case item.quality < 50 {
True ->
item.quality
+ 1
+ case item.name == "Backstage passes to a TAFKAL80ETC concert" {
True ->
case item.sell_in < 11 {
True -> {
case item.quality < 49 {
True ->
1
+ case item.sell_in < 6 {
True ->
case item.quality < 48 {
True -> 1
False -> 0
}
False -> 0
}
False -> 0
}
}
False -> 0
}
False -> 0
}
False -> item.quality
}
}
}
let new_sell_in = case item.name != "Sulfuras, Hand of Ragnaros" {
True -> item.sell_in - 1
False -> item.sell_in
}
case new_sell_in < 0 {
True ->
case item.name != "Aged Brie" {
True ->
case item.name != "Backstage passes to a TAFKAL80ETC concert" {
True ->
case new_quality > 0 {
True ->
case item.name != "Sulfuras, Hand of Ragnaros" {
True ->
Item(
..item,
sell_in: new_sell_in,
quality: new_quality - 1,
)
False -> Item(..item, sell_in: new_sell_in, quality: 80)
}
False ->
Item(..item, sell_in: new_sell_in, quality: new_quality)
}
False ->
Item(
..item,
sell_in: new_sell_in,
quality: new_quality - new_quality,
)
}
False ->
case new_quality < 50 {
True ->
Item(..item, sell_in: new_sell_in, quality: new_quality + 1)
False -> Item(..item, sell_in: new_sell_in, quality: 50)
}
}
False ->
case item.name == "Sulfuras, Hand of Ragnaros" {
True -> Item(..item, sell_in: new_sell_in, quality: 80)
False ->
case new_quality > 50 {
True -> Item(..item, sell_in: new_sell_in, quality: 50)
False -> Item(..item, sell_in: new_sell_in, quality: new_quality)
}
}
}
}
list.map(inventory, update_quality_item)
}

9
gleam/src/test_fixture.gleam
View File

@ -1,4 +1,4 @@
import gilded_rose_item.{type GildedRose, type Item, Item, update_quality}
import gilded_rose_item.{type GildedRose, type Item, Item}
import gleam/int
import gleam/io
import gleam/list
@ -15,7 +15,10 @@ const test_fixture = [
Item("Conjured Mana Cake", 3, 6),
]
pub fn simulate(number_of_days: Int) -> GildedRose {
pub fn simulate(
number_of_days: Int,
modify_inventory: fn(GildedRose) -> GildedRose,
) -> GildedRose {
let days = list.range(0, number_of_days)
let display_item = fn(item: Item) {
string.join(
@ -34,6 +37,6 @@ pub fn simulate(number_of_days: Int) -> GildedRose {
))
io.println("name, sellIn, quality")
list.each(inventory, fn(item) { io.println(display_item(item)) })
update_quality(inventory)
modify_inventory(inventory)
})
}

3
gleam/test/gilded_rose_test.gleam
View File

@ -1,4 +1,5 @@
import gilded_rose_item.{Item, update_quality}
import gilded_rose.{update_quality}
import gilded_rose_item.{Item}
import gleeunit
import gleeunit/should