pub mod display;
pub mod imageproc;

use crate::display::DisplayWrapper;
use crate::imageproc::{Ditherer, EInkBuffer, NNDither};
use clap::{Parser, Subcommand};
use image::RgbImage;

/// Display images over
#[derive(Debug, Parser)]
#[command(version, about)]
struct Cli {
    #[command(subcommand)]
    command: Command,
}

#[derive(Debug, Subcommand)]
enum Command {
    /// Load a single image
    Show,
    /// Start the HTTP sever
    Serve,
}

fn main() -> anyhow::Result<()> {
    let cli = Cli::parse();
    println!("CLI {cli:?}");

    if let Command::Show = cli.command {
        let img: RgbImage = image::io::Reader::open("myimage.png")?.decode()?.into();
        let mut display = DisplayWrapper::new()?;

        let mut eink_buf = EInkBuffer::new(800, 480);
        let dither = NNDither {};

        dither.dither(&img, &mut eink_buf);
        let raw_buf = eink_buf.into_display_buffer();
        display.display(&raw_buf)?;
    }

    Ok(())
}