use crate::tutors::abstractions::tutor::Tutor;
use std::{borrow::Cow, cmp::Ordering, fs, path::PathBuf};

#[derive(Debug, Eq)]
pub struct FsTutor {
    dir: PathBuf,
}

impl FsTutor {
    pub fn with_dir(path: PathBuf) -> Self {
        Self { dir: path }
    }
}

impl Tutor for FsTutor {
    fn get_id(&self) -> &str {
        self.dir.file_name().unwrap().to_str().unwrap()
    }

    fn get_name(&self) -> &str {
        self.get_id()
    }

    fn get_blurb(&self) -> Cow<str> {
        let mut path = self.dir.to_owned();
        path.push(format!("{}.md", self.get_id()));
        let blurb = fs::read_to_string(path).unwrap();
        Cow::Owned(blurb)
    }
}

impl Ord for FsTutor {
    fn cmp(&self, other: &Self) -> Ordering {
        self.get_id().cmp(other.get_id())
    }
}

impl PartialOrd for FsTutor {
    fn partial_cmp(&self, other: &Self) -> Option<Ordering> {
        Some(self.cmp(other))
    }
}

impl PartialEq for FsTutor {
    fn eq(&self, other: &Self) -> bool {
        self.get_id() == other.get_id()
    }
}