use gtk::gdk::Display;
use gtk::{
    gio, glib, style_context_add_provider_for_display, Application, ApplicationWindow, CssProvider,
    GestureDrag,
};
use gtk::{prelude::*, DrawingArea};
// use plotters::prelude::DrawingArea;
// mod backend;
mod data;
mod painter;
mod render;
mod tree;
mod window;
use data::{CoordType, Npz, Radar2d};
use painter::wgs84::{LatLonCoord, Mercator, Range};
use painter::Painter;

const APP_ID: &str = "org.gtk_rs.HelloWorld2";

fn main() -> glib::ExitCode {
    // gio::resources_register_include!("window.gresource").expect("Failed to register resources");
    // Create a new application
    let app = Application::builder().application_id(APP_ID).build();

    app.connect_startup(|_| load_css());

    // Connect to "activate" signal of `app`
    app.connect_activate(build_ui);

    // Run the application
    app.run()
}

fn build_ui(app: &Application) {
    // Create a window and set the title

    // let window = Window::new(app);

    let window = ApplicationWindow::builder()
        .application(app)
        .title("My GTK App")
        .build();

    let drawing_area = DrawingArea::new();
    let path = "/Users/ruomu/test2.npz";
    let data = Radar2d::<i8>::load(path, Npz).unwrap();
    let gesture = GestureDrag::new();

    // gesture.connect_drag_end(|s, x, y| {
    //     (&drawing_area).queue_draw();
    // });
    // drawing_area.add_controller(gesture);
    drawing_area.set_draw_func(move |a, b, c, d| {
        let projection = Mercator::new();
        let aa = Range::from((*data.0.dim1.first().unwrap(), *data.0.dim1.last().unwrap()));
        let ab = Range::from((*data.0.dim2.first().unwrap(), *data.0.dim2.last().unwrap()));

        let coord = LatLonCoord::new(Some(aa), Some(ab), ((0, c), (0, d)), projection);
        let painter: Painter<'_, f64, LatLonCoord<Mercator>> =
            Painter::new(b, coord, c as u32, c as u32);
        painter.draw_radar_2d(&data.0);
    });
    window.set_child(Some(&drawing_area));
    window.set_default_width(1000);
    window.set_default_height(800);

    window.present();
}

fn load_css() {
    // Load the CSS file and add it to the provider
    let provider = CssProvider::new();
    provider.load_from_data(include_str!("css/style.css"));
    // Add the provider to the default screen
    style_context_add_provider_for_display(
        &Display::default().expect("Could not connect to a display."),
        &provider,
        gtk::STYLE_PROVIDER_PRIORITY_APPLICATION,
    );
}