import { Assembler } from './asm.js';

const assemble = (async () => {
	const asm = new Assembler();
	const resp = await fetch('wipforth.ws');
	for await (const chunk of resp.body) {
		asm.push(chunk);
	}
	return asm.wasm();
})();

self.onmessage = async (e) => {
	switch (e.data.type) {
	case "load":
		const exports = { emu: { mem: e.data.mem } };
		const wasm = await assemble;
		self.mod = await WebAssembly.instantiate(wasm, exports);
		await self.postMessage('ready');
		break;

	case "boot":
		self.mod.instance.exports.reset();
		console.log('System halt');
		break;
	}
};