#!/usr/bin/env node

const nodemon = require('nodemon');

const path = require('path');

const { once } = require('ramda');

const webpack = require('webpack');

const { loadWebpackConfig } = require('../config');

const startDevServer = ({ compiler, config }) => {

const serverPaths = Object.keys(compiler.options.entry).map(entry =>

path.join(compiler.options.output.path, `${entry}.js`),

);

compiler.watch(

config.watchOptions,

once((error, stats) => {

if (error || stats.hasErrors()) {

throw Error(error || stats.toJson().errors);

}

nodemon({ script: serverPaths[0], watch: serverPaths }).on(

'quit',

process.exit,

);

}),

);

};

const createProductionBuild = ({ compiler }) => {

compiler.run((error, stats) => {

if (error || stats.hasErrors()) {

throw Error(error || stats.toJson().errors);

}

});

};

const startGraphPack = async () => {

const config = await loadWebpackConfig();

const compiler = webpack(config);

require('yargs')

.command(['$0', 'dev'], 'Start graphpack dev server', {}, () =>

startDevServer({ compiler, config }),

)

.command('build', 'Create production build', {}, () =>

createProductionBuild({ compiler }),

).argv;

};

startGraphPack();