use std::{
	collections::HashMap,
	fs::{read_dir, read_to_string},
};

use marble_engine::parse;
use raylib::prelude::*;

mod marble_engine;

fn main() {
	let (mut rl, thread) = raylib::init()
		.resizable()
		.title("good window title")
		.build();
	rl.set_target_fps(60);

	let board = parse(&read_to_string("boards/counter.mbl").unwrap());
	let mut pos_offset = Vector2::zero();
	let mut machine = marble_engine::Machine::new(board, "Vec::new()".bytes().collect());

	let mut textures: HashMap<String, Texture2D> = HashMap::new();
	for d in read_dir("assets/tiles").unwrap().flatten() {
		let name = d.file_name();
		if d.path().is_file() {
			let name = name.to_string_lossy();
			let texture = rl
				.load_texture(&thread, &format!("assets/tiles/{name}"))
				.unwrap();
			textures.insert(name.to_string(), texture);
		}
	}

	while !rl.window_should_close() {
		if rl.is_key_pressed(KeyboardKey::KEY_SPACE) {
			machine.step();
		}
		if rl.is_mouse_button_down(MouseButton::MOUSE_BUTTON_MIDDLE) {
			pos_offset += rl.get_mouse_delta()
		}
		if rl.is_mouse_button_pressed(MouseButton::MOUSE_BUTTON_RIGHT) {
			pos_offset = Vector2::zero();
		}

		let mut d = rl.begin_drawing(&thread);
		d.clear_background(Color::new(64, 64, 64, 255));

		machine.draw(&mut d, &textures, pos_offset);

		d.draw_fps(2, 2);
	}
}