use super::template::{DayTrait, ResultType};
use nom::{error::Error, Err, IResult, Parser};
use thiserror::Error;

const DAY_NUMBER: usize = todo!();

pub struct Day;

impl DayTrait for Day {
    fn get_day_number(&self) -> usize {
        DAY_NUMBER
    }

    fn part1(&self, lines: &str) -> anyhow::Result<ResultType> {
        Ok(ResultType::Nothing)
    }

    fn part2(&self, lines: &str) -> anyhow::Result<ResultType> {
        Ok(ResultType::Nothing)
    }
}

#[derive(Debug, Error)]
enum DayError {
    #[error("Not a valid description: {0}")]
    ParsingError(String),
}

impl From<Err<Error<&str>>> for DayError {
    fn from(error: Err<Error<&str>>) -> Self {
        DayError::ParsingError(error.to_string())
    }
}

#[cfg(test)]
mod test {
    use super::*;
    use crate::common::file::read_string;
    use anyhow::Result;

    #[test]
    fn test_part1() -> Result<()> {
        let day = Day {};
        let lines = read_string(day.get_day_number(), "example01.txt")?;
        let expected = ResultType::Nothing;
        let result = day.part1(&lines)?;
        assert_eq!(result, expected);

        Ok(())
    }

    #[test]
    fn test_part2() -> Result<()> {
        let day = Day {};
        let lines = read_string(day.get_day_number(), "example01.txt")?;
        let expected = ResultType::Nothing;
        let result = day.part2(&lines)?;
        assert_eq!(result, expected);

        Ok(())
    }
}