use super::vector3::Vector3;
use super::cframe::CFrame;

pub struct Runner{
	lua:mlua::Lua,
}

fn init(lua:&mlua::Lua)->mlua::Result<()>{
	lua.sandbox(true)?;

	//global environment
	let globals=lua.globals();

	//Vector3
	{
		let vector3_table=lua.create_table()?;

		//Vector3.new
		vector3_table.raw_set("new",
			lua.create_function(|ctx,(x,y,z):(f32,f32,f32)|
				Ok(ctx.create_userdata(Vector3::new(x,y,z)))
			)?
		)?;

		globals.set("Vector3",vector3_table)?;
	}

	//CFrame
	{
		let cframe_table=lua.create_table()?;

		//CFrame.new
		cframe_table.raw_set("new",
			lua.create_function(|ctx,(x,y,z):(f32,f32,f32)|
				Ok(ctx.create_userdata(CFrame::new(x,y,z)))
			)?
		)?;

		//CFrame.Angles
		cframe_table.raw_set("Angles",
			lua.create_function(|ctx,(x,y,z):(f32,f32,f32)|
				Ok(ctx.create_userdata(CFrame::angles(x,y,z)))
			)?
		)?;

		globals.set("CFrame",cframe_table)?;
	}

	Ok(())
}

impl Runner{
	pub fn new()->mlua::Result<Self>{
		let runner=Self{
			lua:mlua::Lua::new(),
		};
		init(&runner.lua)?;
		Ok(runner)
	}
	pub fn set_script(&self,script:rbx_dom_weak::types::Ref,name:String)->mlua::Result<()>{
		//TODO: Instance type
		let script_table=self.lua.create_table()?;
		//script.Name
		script_table.raw_set("Name",name)?;
		self.lua.globals().set("script",script_table)?;
		Ok(())
	}
	pub fn run(&self,source:String,context:&mut crate::context::Context)->mlua::Result<()>{
		//Set up dom access here?
		let script:mlua::Table<'_>=self.lua.globals().raw_get("script")?;
		let name:String=script.raw_get("Name")?;
		self.lua.load(source)
		.set_name(name)
		.exec()
	}
}