use hashbrown::HashMap;

use crate::static_data::DataLibrary;
use crate::static_data::Item;
use crate::StringKey;

#[derive(Debug)]
pub struct ItemLibrary {
    map: HashMap<StringKey, Box<Item>>,
    list: Vec<StringKey>,
}

impl ItemLibrary {
    pub fn new(capacity: usize) -> ItemLibrary {
        ItemLibrary {
            map: HashMap::with_capacity(capacity),
            list: Vec::with_capacity(capacity),
        }
    }
}

impl DataLibrary<'_, Box<Item>> for ItemLibrary {
    fn map(&self) -> &HashMap<StringKey, Box<Item>> {
        &self.map
    }

    fn list_values(&self) -> &Vec<StringKey> {
        &self.list
    }

    fn get_modify(&mut self) -> (&mut HashMap<StringKey, Box<Item>>, &mut Vec<StringKey>) {
        (&mut self.map, &mut self.list)
    }
}

#[cfg(test)]
pub mod tests {
    use hashbrown::HashSet;

    use crate::static_data::libraries::data_library::DataLibrary;
    use crate::static_data::libraries::item_library::ItemLibrary;
    use crate::static_data::Item;
    use crate::static_data::{BattleItemCategory, ItemCategory};

    fn build_item() -> Item {
        Item::new(
            &"foo".into(),
            ItemCategory::MiscItem,
            BattleItemCategory::MiscBattleItem,
            100,
            HashSet::new(),
        )
    }

    pub fn build() -> ItemLibrary {
        let mut lib = ItemLibrary::new(1);
        let m = build_item();
        // Borrow as mut so we can insert
        let w = &mut lib;
        w.add(&"foo".into(), Box::from(m));
        // Drops borrow as mut

        lib
    }
}