const gulp = require('gulp');
const concat = require('gulp-concat');
const uglify = require('gulp-uglify');
const babel = require('gulp-babel');
const template = require('gulp-template');


const index = () => function index() {
    return gulp.src('src/webapp/index.html')
        .pipe(template({
            scripts: ['app.min.js'],
            swf: 'tankz.swf'
        }))
        .pipe(gulp.dest('target'))
};

const js = () => function js() {
    const src = [
        'src/webapp/js/*.js'
    ];
    return gulp.src(src)
        .pipe(babel({presets: ['es2015']}))
        .pipe(uglify())
        .pipe(concat('app.min.js'))
        .pipe(gulp.dest('target'))
};

exports['webapp'] = gulp.parallel(index(), js());