use crate::State;
use comfy::{
	draw_rect, draw_rect_outline, egui, screen_height, screen_to_world, screen_width,
	EngineContext, Vec2, BLUE, RED, WHITE
};
use egui::widget_text::RichText;

pub fn draw_batterie(state: &State, _engine: &EngineContext<'_>) {
	// seperate fill state into smaller section for better readability
	let section_count = 5;
	let mut start_positon = screen_to_world(Vec2::new(screen_width(), screen_height()));
	// section size in world codinates
	let section_size = Vec2::new(0.5, 0.25);
	start_positon.x -= 0.5 * section_size.x + 0.5 * section_size.y;
	start_positon.y += 0.5 * section_size.y + 0.5 * section_size.y;
	// draw fill level
	{
		let ghost = &state.ghost;
		let percent = ghost.charge / ghost.max_charge;
		let mut size = section_size;
		size.y = section_size.y * section_count as f32 * percent;
		let mut position = start_positon;
		position.y += 0.5 * -section_size.y + 0.5 * size.y;
		draw_rect(position, size, BLUE, 100);
	}
	// draw sections
	for i in 0 .. section_count {
		let mut position = start_positon;
		position.y += i as f32 * section_size.y;
		draw_rect_outline(position, section_size, 0.1, RED, 100);
	}
}

pub fn draw_highscore(state: &State, _engine: &EngineContext<'_>) {
	egui::Area::new("score")
		.anchor(egui::Align2::RIGHT_TOP, egui::vec2(0.0, 0.0))
		.show(egui(), |ui| {
			ui.label(
				RichText::new(format!("{:.0}", state.score))
					.color(WHITE)
					.monospace()
					.size(16.0)
					.strong()
			);
		});
}

pub fn draw(state: &State, engine: &EngineContext<'_>) {
	draw_batterie(state, engine);
	draw_highscore(state, engine);
}