var gulp = require("gulp");
var runseq = require('run-sequence');
var clean = require("gulp-clean");
var scss = require("gulp-sass");
var plumber = require("gulp-plumber");
var autoprefixer = require('gulp-autoprefixer');
var watch = require("gulp-watch");
var cssmin = require("gulp-cssmin");
var rimraf = require("rimraf");

var paths = {};
paths.app = "./resources/";
paths.output = "./resources/public/";
paths.dist = "./dist";
paths.scss = paths.app + "styles/**/*.scss";

gulp.task("scss", function() {
    return gulp.src(paths.app + "styles/main.scss")
                .pipe(plumber())
                .pipe(scss({ style: "expanded" }))
                .pipe(gulp.dest(paths.output + "css/"));
});

gulp.task("autoprefixer", function() {
    return gulp.src(paths.output + "css/main.css")
               .pipe(autoprefixer('last 2 version', 'safari 5', 'ie 8', 'ie 9', 'opera 12.1', 'ios 6', 'android 4'))
               .pipe(gulp.dest(paths.output + "css/"));
});

gulp.task("cssmin", function() {
  return gulp.src(paths.output + "css/main.css")
             .pipe(cssmin())
             .pipe(gulp.dest(paths.output + "css/"));
});

gulp.task("styles:dev", function(next) {
  runseq("scss", "autoprefixer", next);
});

gulp.task("styles:dist", function(next) {
  runseq("scss", "autoprefixer", next);
});

gulp.task("clean", function(next) {
  rimraf(paths.output + "css/", function() {
    rimraf(paths.output + "js/", next)
  });
});

gulp.task("copy", function() {
  return gulp.src(paths.output + "/**/*.*")
             .pipe(gulp.dest(paths.dist));
});

// Default
gulp.task("dist", function(next) {
  runseq("clean", "styles:dist", "cssmin", "copy", next);
});

// Watch
gulp.task("default", ["styles:dev"], function () {
    gulp.watch(paths.scss, ["autoprefixer"]);
});