use crate::item::Item;

/// Item database
pub struct ItemDB {
    index: mdq::Index,
}

impl ItemDB {
    /// Create a new item database using `dir` as the base.
    ///
    /// The directory should contain markdown documents with valid frontmatter to be parsed into `Item`s
    pub async fn new(dir: &str) -> Self {
        // scan for markdown item entries
        let index = mdq::Index::new(dir, true);

        for item in &index.documents {
            let item = Item::new(item);
            log::info!("Adding item {} to DB", item.name);
        }

        Self { index }
    }

    /// Retrieves an item by name
    pub fn get_item(&self, item: &str) -> Option<Item> {
        Some(
            self.index
                .documents
                .iter()
                .map(Item::new) // <-- todo : performance?
                .find(|x| x.name == item)?,
        )
    }

    /// Get all items
    pub fn items(&self) -> Vec<String> {
        let mut ret = vec![];
        for item in &self.index.documents {
            let item = Item::new(item);
            ret.push(item.name);
        }
        ret
    }
}