extern crate glium;
extern crate model_converter;

use glium::Display;
use glium::glutin;
use glium::glutin::{
    EventsLoop,
    WindowBuilder,
};

use glium::glutin::Event;
use glium::glutin::WindowEvent;
use glium::glutin::VirtualKeyCode;


use model_converter::math::vector::Vector3;
use model_converter::parser::{parse, parse_into_model};
use model_converter::renderer::Renderer;
use model_converter::renderer::controls::OrbitControls;
use model_converter::renderer::camera::Camera;

fn main() {

    let mut model = parse("./assets/models/cube/cube.mtl").unwrap();
    parse_into_model("./assets/models/cube/cube.obj", &mut model).unwrap();

    let mut events_loop = EventsLoop::new();
    let window = WindowBuilder::new();
    let context = glutin::ContextBuilder::new().with_depth_buffer(24);
    let display = Display::new(window, context, &events_loop).unwrap();

    let mut closed = false;

    let mut renderer = Renderer::new(display);
    renderer.add_model(&model);

    let mut camera = Camera::new(
        Vector3::new( 0.0, 0.0, 0.0),
        Vector3::new( 0.0, 0.0, 0.0),
        Vector3::new( 0.0, 1.0, 0.0),
    );

    let mut controls = OrbitControls::new(&mut camera);

    while !closed {

        events_loop.poll_events(|ev| {

            use model_converter::renderer::controls::Controls;
            controls.manage_event(&ev, &mut camera);

            match ev {
                // Close window
                Event::WindowEvent {
                    event: WindowEvent::Closed, ..
                } => closed = true,

                // Escape key
                Event::WindowEvent {
                    event: WindowEvent::KeyboardInput {
                        input: glutin::KeyboardInput {
                            virtual_keycode: Some(VirtualKeyCode::Escape), ..
                        }, ..
                    }, ..
                } => closed = true,

                _ => (),
            }
        });


        let mut target = renderer.draw();
        renderer.render(&camera, &mut target);
        target.finish().unwrap();

    }
}