use iris::prelude::*;
use winit::event::WindowEvent;

fn main() {
    DefaultApp::<Client>::run();
}

/// The tabs example: five demo panes plus a message composer, built by
/// `tabs_ui::build` and driven here through the winit backend. The same
/// widget tree also runs on the android-view backend, through
/// `iris-android-app` -- see RUST.md's I2.
#[derive(DefaultUiState)]
pub struct Client {
    ui_state: DefaultUiState,
    info: WeakWidget<Text>,
}

impl DefaultAppState for Client {
    fn new(
        mut ui_state: DefaultUiState,
        rsc: &mut DefaultRsc<Self>,
        _: Proxy<Self::Event>,
    ) -> Self {
        let widgets = tabs_ui::build(rsc, &mut ui_state);
        Self {
            ui_state,
            info: widgets.info,
        }
    }

    fn window_event(
        &mut self,
        _: WindowEvent,
        rsc: &mut DefaultRsc<Self>,
        render: &mut UiRenderState,
    ) {
        let new = format!(
            "widgets: {}\nactive: {}\nviews: {}",
            rsc.widgets().len(),
            render.active_widgets(),
            self.ui_state.renderer.ui.view_count(),
        );
        if new != *rsc.widgets()[self.info].content {
            *rsc.widgets_mut()[self.info].content = new;
        }
    }
}