use std::path::PathBuf;
use serde_derive::{Serialize, Deserialize};
use std::fs::read_to_string;

#[derive(Debug, Eq, PartialEq, Serialize, Deserialize)]
pub struct Image {
    pub name: String,
    /// colour indexes - todo convert to [u8; 64]?
    pub pixels: Vec<u8>,
}

impl Image {
    pub fn from_file(path: PathBuf) -> Self {
        let name = path.file_stem().unwrap().to_str().unwrap().into();
        let mut pixels: Vec<u8> = Vec::new();

        for line in read_to_string(&path).unwrap().lines() {
            for char in line.chars() {
                pixels.push(char.to_string().parse().unwrap());
            }
        }

        Self { name, pixels }
    }
}

#[cfg(test)]
mod test {
    use std::path::PathBuf;
    use crate::image::Image;

    #[test]
    fn image_from_text() {
        let path = PathBuf::from("src/test-resources/basic/images/avatar.txt");
        let output = Image::from_file(path);
        let expected = crate::mock::image::avatar();
        assert_eq!(output, expected);
    }
}