use nom::branch::alt;
use nom::error::VerboseError;
use nom::IResult;
use std::cell::RefCell;
use std::rc::Rc;

pub struct NomContext<I, O, E> {
    pub fail_matcher: Box<dyn FnMut(I) -> IResult<I, O, E>>,

    /// You can't have nested bolds in org-mode
    pub can_match_bold: bool,
    pub can_match_link: bool,
}

impl<I, O, E> NomContext<I, O, E> {
    pub fn new(fail_matcher: Box<dyn FnMut(I) -> IResult<I, O, E>>) -> Self {
        NomContext {
            fail_matcher: fail_matcher,
            can_match_bold: true,
            can_match_link: true,
        }
    }

    // pub fn with_no_bold(&self) -> NomContext<I, O, E> {
    //     NomContext {
    //         fail_matcher: self.fail_matcher.clone(),
    //         can_match_bold: false,
    //         can_match_link: self.can_match_link,
    //     }
    // }

    // pub fn with_additional_fail_matcher(&self, additional_matcher: G) -> NomContext<G, I, O, E>
    // where
    //     G: for<'a> FnMut(I) -> IResult<I, O, E>,
    // {
    //     let new_fail_matcher = alt((self.fail_matcher, additional_matcher));
    //     NomContext {
    //         fail_matcher: Rc::new(RefCell::new(new_fail_matcher)),
    //         can_match_bold: self.can_match_bold,
    //         can_match_link: self.can_match_link,
    //     }
    // }
}