var gulp = require('gulp');
var sass = require('gulp-sass');
var	runSequence = require('run-sequence');
var autoprefixer = require('gulp-autoprefixer');
var	watcher = require('gulp-watch');

gulp.task('sass', function () {
  gulp.src(['*.scss', '!_*.scss', 'helpers/*.scss', '!helpers/_*.scss'], {cwd: './scss/'})
    .pipe(sass({
    	outputStyle: 'expanded'
    }).on('error', sass.logError))
		.pipe(autoprefixer({
			browsers: [
				'ie >= 8',
				'ff >= 29',
				'Opera >= 12',
				'iOS >= 6',
				'Chrome >= 28',
				'Android >= 2'
			],
			cascade: true,
			remove: false
		}))
    .pipe(gulp.dest('./css/'));
});

gulp.task('watch', function() {
	watcher(['./scss/**/*.scss'], function () {
		gulp.start('sass');
	});
});

gulp.task('default', function() {
	return runSequence(
		'watch'
	);
});