mod rgba;
mod screen;
mod input;

use embedded_graphics::{prelude::*, primitives::{PrimitiveStyle, Rectangle}};
use evdev::{AbsoluteAxisCode, Device, EventSummary, KeyCode};
use screen::Screen;
use rgba::Rgba;


fn main() {
    let mut screen = Screen::new();

    let red = (255, 0, 0, 255);
    let green = (0, 255, 0, 255);
    let blue = (0, 0, 255, 255);

    // /dev/input/event4:	silead_ts


    Rectangle::new(Point::new(0, 0), Size::new(screen.width(), 1))
        .into_styled(PrimitiveStyle::with_fill(Rgba::from(red)))
        .draw(&mut screen)
        .ok();

    Rectangle::new(Point::new(0, 1), Size::new(screen.width(), 1))
        .into_styled(PrimitiveStyle::with_fill(Rgba::from(green)))
        .draw(&mut screen)
        .ok();

    Rectangle::new(Point::new(0, 2), Size::new(screen.width(), 1))
        .into_styled(PrimitiveStyle::with_fill(Rgba::from(blue)))
        .draw(&mut screen)
        .ok();

    let Ok(mut device) = Device::open("/dev/input/event4") else {
        panic!("No TS");
    };

    // device.set_nonblocking(true).unwrap();

    let mut x = -1;
    let mut y = -1;

    loop {
        // println!("dont block");
        let Ok(events) = device.fetch_events() else {
            continue;
        };

        for event in events {
            match event.destructure(){
                EventSummary::AbsoluteAxis(_, AbsoluteAxisCode::ABS_X, value) => {
                    x = (((value - 13) as f32 / 882.) * (screen.width() as f32)) as i32;
                },
                EventSummary::AbsoluteAxis(_, AbsoluteAxisCode::ABS_Y, value) => {
                    y = (((value - 13) as f32 / 624.) * (screen.height() as f32)) as i32;
                },
                EventSummary::Key(_, KeyCode::BTN_TOUCH, value) => {
                    // if value is 1, touch is started
                    // if value is 0, touch ended
                    println!("touch: {}", value)
                },
                _ => {}
            }
        }

        println!("{}x{}", x, y);

        screen.clear(Rgba::from((0,0,0,255))).ok();
        Rectangle::new(Point::new(x - 50, y - 50), Size::new(100, 100))
            .into_styled(PrimitiveStyle::with_fill(Rgba::from(blue)))
            .draw(&mut screen)
            .ok();
    }
}