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mod parser;
mod serializer;
mod utils;

#[cfg(test)]
mod test_parser;
#[cfg(test)]
mod test_serializer;
use indexmap::IndexMap;

pub use rust_decimal::{
    prelude::{FromPrimitive, FromStr},
    Decimal,
};

pub use parser::{ParseMore, ParseValue, Parser};
pub use serializer::SerializeValue;

type SFVResult<T> = std::result::Result<T, &'static str>;

pub type Dictionary = IndexMap<String, ListEntry>;
pub type Parameters = IndexMap<String, BareItem>;
pub type List = Vec<ListEntry>;

#[derive(Debug, PartialEq, Clone)]
pub enum ListEntry {
    Item(Item),
    InnerList(InnerList),
}

impl From<Item> for ListEntry {
    fn from(item: Item) -> Self {
        ListEntry::Item(item)
    }
}

impl From<InnerList> for ListEntry {
    fn from(item: InnerList) -> Self {
        ListEntry::InnerList(item)
    }
}

#[derive(Debug, PartialEq, Clone)]
pub struct InnerList {
    pub items: Vec<Item>,
    pub params: Parameters,
}

impl InnerList {
    fn new(items: Vec<Item>) -> InnerList {
        InnerList {
            items,
            params: Parameters::new(),
        }
    }

    pub fn with_params(items: Vec<Item>, params: Parameters) -> InnerList {
        // if params.is_empty() {
        //     return InnerList::new(items);
        // }
        InnerList { items, params }
    }
}

#[derive(Debug, PartialEq, Clone)]
pub struct Item {
    pub bare_item: BareItem,
    pub params: Parameters,
}

impl Item {
    fn new(bare_item: BareItem) -> Item {
        Item {
            bare_item,
            params: Parameters::new(),
        }
    }

    pub fn with_params(bare_item: BareItem, params: Parameters) -> Item {
        Item { bare_item, params }
    }
}

#[derive(Debug, PartialEq, Clone)]
pub enum Num {
    Decimal(Decimal),
    Integer(i64),
}

#[derive(Debug, PartialEq, Clone)]
pub enum BareItem {
    Number(Num),
    String(String),
    ByteSeq(Vec<u8>),
    Boolean(bool),
    Token(String),
}

impl From<i64> for BareItem {
    fn from(item: i64) -> Self {
        BareItem::Number(Num::Integer(item))
    }
}

impl From<Decimal> for BareItem {
    fn from(item: Decimal) -> Self {
        BareItem::Number(Num::Decimal(item))
    }
}