use std::{path::Path, io::{BufReader, BufRead, self}, fs::File};

#[derive(Debug)]
pub struct AdventError(String);

impl From<io::Error> for AdventError {
    fn from(e: io::Error) -> Self {
        AdventError(e.to_string())
    }
}

pub fn read_into_vec(path: &Path) -> Result<Vec<String>, AdventError> {
    let file = File::open(path).expect("no such file");
    let buf = BufReader::new(file);
    buf.lines().map(|line| line.map_err(Into::into)).collect::<Result<Vec<String>, AdventError>>()
}