springload/workshops

function Item(name, sell_in, quality) {
    this.name = name;
    this.sell_in = sell_in;
    this.quality = quality;
}

var items = []

items.push(new Item('+5 Dexterity Vest', 10, 20));
items.push(new Item('Aged Brie', 2, 0));
items.push(new Item('Elixir of the Mongoose', 5, 7));
items.push(new Item('Sulfuras, Hand of Ragnaros', 0, 80));
items.push(new Item('Backstage passes to a TAFKAL80ETC concert', 15, 20));
items.push(new Item('Conjured Mana Cake', 3, 6));

function update_quality(items) {
    for (var i = 0; i < items.length; i++) {
        if (items[i].name != 'Aged Brie' && items[i].name != 'Backstage passes to a TAFKAL80ETC concert') {
            if (items[i].quality > 0) {
                if (items[i].name != 'Sulfuras, Hand of Ragnaros') {
                    items[i].quality = items[i].quality - 1
                }
            }
        } else {
            if (items[i].quality < 50) {
                items[i].quality = items[i].quality + 1
                if (items[i].name == 'Backstage passes to a TAFKAL80ETC concert') {
                    if (items[i].sell_in < 11) {
                        if (items[i].quality < 50) {
                            items[i].quality = items[i].quality + 1
                        }
                    }
                    if (items[i].sell_in < 6) {
                        if (items[i].quality < 50) {
                            items[i].quality = items[i].quality + 1
                        }
                    }
                }
            }
        }
        if (items[i].name != 'Sulfuras, Hand of Ragnaros') {
            items[i].sell_in = items[i].sell_in - 1;
        }

        if (items[i].sell_in < 0) {
            if (items[i].name != 'Aged Brie') {
                if (items[i].name != 'Backstage passes to a TAFKAL80ETC concert') {
                    if (items[i].quality > 0) {
                        if (items[i].name != 'Sulfuras, Hand of Ragnaros') {
                            items[i].quality = items[i].quality - 1
                        }
                    }
                } else {
                    items[i].quality = items[i].quality - items[i].quality
                }
            } else {
                if (items[i].quality < 50) {
                    items[i].quality = items[i].quality + 1
                }
            }
        }
    }
}

module.exports = {
    Item: Item,
    items: items,
    update_quality: update_quality,
};