use crate::plugin::Plugin;
use image::ImageFormat;
use std::io::Cursor;

pub struct PluginImpl;

impl Plugin for PluginImpl {
    fn name(&self) -> &'static str { "jpeg_to_png" }
    fn from_formats(&self) -> Vec<&'static str> { vec!["jpeg"] }
    fn to_formats(&self) -> Vec<&'static str> { vec!["png"] }
    fn familiarity(&self) -> u8 { 255 }
    fn quality(&self) -> u8 { 255 }
    fn speed(&self) -> u8 { 200 }
    
    fn convert(&self, input: &[u8], _from: &str, _to: &str) -> Result<Vec<u8>, String> {
        let img = image::load_from_memory_with_format(input, ImageFormat::Jpeg)
            .map_err(|e| e.to_string())?;
        let mut buf = Vec::new();
        img.write_to(&mut Cursor::new(&mut buf), ImageFormat::Png)
            .map_err(|e| e.to_string())?;
        Ok(buf)
    }
}