mod app;
mod bitmap;
mod brush;
mod command;
mod consts;
mod dither;
mod error;
mod lisp;
mod message;
mod symmetry;
mod undo;
mod utils;

use app::AppState;
use error::{AppError, SdlTTFError};

use std::{
    env,
    fs::OpenOptions,
    io::{Cursor, Read},
    path::PathBuf,
};

use log::{error, info};
use obi::Image;

pub fn error_sink() -> Result<(), AppError> {
    env_logger::init();

    let sdl_context = sdl2::init().map_err(AppError::Sdl)?;
    info!("Initialized SDL context");

    let ttf_context = sdl2::ttf::init().map_err(|e| AppError::SdlTTF(SdlTTFError::Init(e)))?;
    info!("Initialized SDL_ttf context");

    let args: Vec<_> = env::args().collect();
    if args.len() < 2 {
        AppState::init(160, 160, &sdl_context, &ttf_context, None, None)?.run();
        return Ok(());
    } else {
        let path = PathBuf::from(args.get(1).unwrap());
        let mut image = OpenOptions::new()
            .read(true)
            .write(false)
            .create(false)
            .open(&path)
            .map_err(AppError::File)?;
        let mut buf = Vec::new();
        image.read_to_end(&mut buf).map_err(AppError::File)?;
        let decoded = Image::decode(&mut (Cursor::new(buf))).unwrap(); // TODO: obi error
        let (width, height) = (decoded.width(), decoded.height());
        AppState::init(
            width,
            height,
            &sdl_context,
            &ttf_context,
            Some(decoded.data),
            Some(&path),
        )?
        .run();
        return Ok(());
    }
}

pub fn main() {
    match error_sink() {
        Err(e) => error!("{}", e),
        _ => (),
    }
}