use std::string;
use std::vec;

pub struct Item {
    pub name: string::String,
    pub sell_in: i32,
    pub quality: i32
}

impl Item {
    pub fn new(name: String, sell_in: i32, quality: i32) -> Item {
        Item {name: name, sell_in: sell_in, quality: quality}
    }
}

pub struct GildedRose {
    pub items: vec::Vec<Item>
}

impl GildedRose {
    pub fn new(items: vec::Vec<Item>) -> GildedRose {
        GildedRose {items: items}
    }

    pub fn update_quality(&mut self) {
        for item in &mut self.items {
            if item.name != "Aged Brie" && item.name != "Backstage passes to a TAFKAL80ETC concert" {
                if item.quality > 0 {
                    if item.name != "Sulfuras, Hand of Ragnaros" {
                        item.quality = item.quality - 1;
                    }
                }
            } else {
                if item.quality < 50
                {
                    item.quality = item.quality + 1;

                    if item.name == "Backstage passes to a TAFKAL80ETC concert" {
                        if item.sell_in < 11 {
                            if item.quality < 50 {
                                item.quality = item.quality + 1;
                            }
                        }

                        if item.sell_in < 6 {
                            if item.quality < 50 {
                                item.quality = item.quality + 1;
                            }
                        }
                    }
                }
            }

            if item.name != "Sulfuras, Hand of Ragnaros" {
                item.sell_in = item.sell_in - 1;
            }

            if item.sell_in < 0 {
                if item.name != "Aged Brie" {
                    if item.name != "Backstage passes to a TAFKAL80ETC concert" {
                        if item.quality > 0 {
                            if item.name != "Sulfuras, Hand of Ragnaros" {
                                item.quality = item.quality - 1;
                            }
                        }
                    } else {
                        item.quality = item.quality - item.quality;
                    }
                } else {
                    if item.quality < 50 {
                        item.quality = item.quality + 1;
                    }
                }
            }
        }
    }
}

#[cfg(test)]
mod test;