const gulp = require('gulp');
const sass = require('gulp-sass');
const del = require('del');

gulp.task('styles', () => {
  return gulp.src('assets/scss/**/*.scss')
    .pipe(sass().on('error', sass.logError))
    .pipe(gulp.dest('assets/styles/'));
});

gulp.task('clean', () => {
  return del([
    'assets/styles/reset.css',
    'assets/styles/about-us.css',
    'assets/styles/common.css',
    'assets/styles/contract.css',
    'assets/styles/index.css',
    'assets/styles/news.css',
    'assets/styles/product.css'
  ]);
});

gulp.task('watch', () => {
  gulp.watch('assets/scss/**/*.scss', (done) => {
    gulp.series(['clean', 'styles'])(done);
  });
});

gulp.task('default', gulp.series(['clean', 'styles']));