use crate::program::Track;
use std::fs;

macro_rules! load_asm {
	($looping:tt, $path:tt) => {{
		let res = if cfg!(any(feature = "static", target_arch = "wasm32")) {
			let src = include_str!(concat!("../../", $path));
			Track::parse(src, $looping)
		} else {
			let src = fs::read_to_string($path)?;
			Track::parse(&src, $looping)
		};
		res.map_err(|mut err| {
			err.file = Some(String::from($path));
			err
		})?
	}};
    ($looping:tt, $first:tt, $($arg:tt),*) => {
		load_asm!($looping, $first)$(.merge(load_asm!($looping, $arg)))*
	};
}

pub struct Data {
	pub explore: Track,
	pub megalovania: Track,
	pub test: Track,
}
impl Data {
	pub fn load() -> crate::Result<Self> {
		let explore = load_asm!(
			true,
			"assets/asm/explore_melody.asm",
			"assets/asm/explore_harmony1.asm",
			"assets/asm/explore_harmony2.asm"
		);
		let megalovania = load_asm!(
			true,
			"assets/asm/megalovania_melody.asm",
			"assets/asm/megalovania_base.asm"
		);
		let test = load_asm!(false, "assets/asm/test.asm");
		Ok(Self {
			explore,
			megalovania,
			test,
		})
	}
}