'use strict';

const path = require('path');
const fs = require('fs');

const parser = require('@darabonba/parser');
const Generator = require('@darabonba/go-generator');

const sourceDir = "<Darabonda package directory>";
const outputDir = "<Generate output directory>";

// generate AST data by Parser
let packageMetaFilePath = path.join(sourceDir, 'Darafile');
let packageMeta = JSON.parse(fs.readFileSync(packageMetaFilePath, 'utf8'));
let mainFile = path.join(sourceDir, packageMeta.main);
let ast = parser.parse(fs.readFileSync(mainFile, 'utf8'), mainFile);

// initialize generator
let generatorConfig = {
  ...packageMeta,
  pkgDir: sourceDir,
  outputDir
};

let generator = new Generator(generatorConfig);

// generate go code by generator
generator.visit(ast);

// The execution result will be output in the 'outputDir'