const {src, dest, parallel} = require('gulp');
const sass = require('gulp-sass');
const minifyCSS = require('gulp-csso');
const concat = require('gulp-concat');
const browserify = require('gulp-browserify');

function css() {
    return src('styles/*.scss')
        .pipe(sass())
        .pipe(minifyCSS())
        .pipe(concat('bundle.css'))
        .pipe(dest('public'))
}

function js() {
    return src('src/index.js')
        .pipe(browserify({
            insertGlobals: true,
        }))
        .pipe(dest('public'))
}

exports.js = js;
exports.css = css;
exports.default = parallel(css, js);