"use strict";

const astformer = require("astformer");

const parse = require("./parse");
const printAST = require("./print-ast");
const transformers = require("./transformers");
const generate = require("@babel/generator").default;

module.exports = function transpile(nixSource) {
	if (process.env.DEBUG_NIX) {
		console.log("-- DEBUG (SOURCE):\n", nixSource);
	}

	let ast = parse(nixSource);

	if (process.env.DEBUG_NIX) {
		console.log("-- DEBUG (AST):");
		printAST(ast);
	}

	// Warm-up for hot VM performance testing
	// for (let i = 0; i < 10000; i++) {
	// 	astformer(ast, transformers);
	// }

	let result = astformer(ast, transformers);

	if (process.env.DEBUG_NIX) {
		console.log("-- DEBUG (TRANSPILED AST):");
		printAST(result.ast);
		console.log({ timings: result.timings });
	}

	let code = generate(result.ast).code;

	if (process.env.DEBUG_NIX) {
		console.log("-- DEBUG (INPUT):");
		console.log(nixSource);
		console.log("-- DEBUG (OUTPUT):");
		console.log(code);
	}

	return code;
};