mod date;
pub use date::Date;

mod parser;
pub use parser::parse_collection;

use thiserror::Error;

mod types;
pub use types::*;

#[derive(Debug)]
pub enum Error {
    InvalidField,
    InvalidBoardSize,
    Incomplete,
    InvalidSgf(VerboseNomError),
}

#[derive(Debug)]
pub struct VerboseNomError(nom::error::VerboseError<String>);

impl From<nom::error::VerboseError<&str>> for VerboseNomError {
    fn from(err: nom::error::VerboseError<&str>) -> Self {
        VerboseNomError(nom::error::VerboseError {
            errors: err
                .errors
                .into_iter()
                .map(|err| (err.0.to_owned(), err.1))
                .collect(),
        })
    }
}

impl From<nom::Err<nom::error::VerboseError<&str>>> for Error {
    fn from(err: nom::Err<nom::error::VerboseError<&str>>) -> Self {
        match err {
            nom::Err::Incomplete(_) => Error::Incomplete,
            nom::Err::Error(e) => Error::InvalidSgf(VerboseNomError::from(e)),
            nom::Err::Failure(e) => Error::InvalidSgf(VerboseNomError::from(e)),
        }
    }
}

#[derive(Debug, PartialEq, Error)]
pub enum ParseError {
    #[error("An unknown error was found")]
    NomError(nom::error::Error<String>),
}

impl From<nom::error::Error<&str>> for ParseError {
    fn from(err: nom::error::Error<&str>) -> Self {
        Self::NomError(nom::error::Error {
            input: err.input.to_owned(),
            code: err.code,
        })
    }
}

pub fn parse_sgf(_input: &str) -> Result<Vec<Game>, Error> {
    Ok(vec![Game::default()])
}