#[global_allocator]
static ALLOC: wee_alloc::WeeAlloc = wee_alloc::WeeAlloc::INIT;

pub use glam::Vec2;

pub mod abi;
pub mod anim;
pub mod draw;
pub mod panel;
pub mod widgets;

use abi::UiPanel;
use widgets::Widget;

pub struct DummyPanel {
    panel: UiPanel,
    buttons: Vec<widgets::RoundButton>,
}

impl DummyPanel {
    fn bind(panel: UiPanel) -> Self {
        let mut buttons = Vec::new();

        for i in 0..6 {
            let mut button = widgets::RoundButton::default();
            button.pos.y = i as f32 * 0.2;
            buttons.push(button);
        }

        Self { panel, buttons }
    }
}

impl abi::PanelImpl for DummyPanel {
    fn update(&mut self, dt: f32) {
        let ctx = draw::DrawContext::new(self.panel);
        for button in self.buttons.iter_mut() {
            button.update(dt);
            button.draw(&ctx);
        }
    }

    fn on_cursor_event(&mut self, kind: CursorEventKind, at: Vec2) {
        for button in self.buttons.iter_mut() {
            button.on_cursor_event(kind, at);
        }
    }
}

#[repr(C)]
#[derive(Copy, Clone, Debug)]
pub struct Color {
    pub r: f32,
    pub g: f32,
    pub b: f32,
    pub a: f32,
}

#[derive(Copy, Clone, Debug)]
pub enum CursorEventKind {
    Hover,
    Select,
    Drag,
    Deselect,
}