'use strict';

var gulp = require('gulp');
var sass = require('gulp-sass')(require('sass'));
const concatCss = require('gulp-concat-css');
var uglifycss = require('gulp-uglifycss');


gulp.task('sass', function() {
  return gulp.src('./sass/*.scss')
    .pipe(sass().on('error', sass.logError))
    .pipe(concatCss('all.css'))
    .pipe(gulp.dest('./css'));
});

gulp.task('css', function () {
  return gulp.src('./css/*.css')
    .pipe(uglifycss({
      "uglyComments": true
    }))
    .pipe(gulp.dest('./dist/'));
});

gulp.task('run', gulp.series('sass', 'css'));

gulp.task('watch', function(){
  gulp.watch('./sass/*.scss', gulp.series('sass'));
  gulp.watch('./css/*.css', gulp.series('css'));
});

gulp.task('default', gulp.series('run', 'watch'));