//Install cmd
// npm install --save-dev gulp-ruby-sass gulp-autoprefixer gulp-cssnano gulp-jshint gulp-uglify gulp-imagemin gulp-rename gulp-concat gulp-notify gulp-cache gulp-livereload del gulp-jade


var gulp = require('gulp'),
    sass = require('gulp-ruby-sass'),
    autoprefixer = require('gulp-autoprefixer'),
    cssnano = require('gulp-cssnano'),
    jshint = require('gulp-jshint'),
    uglify = require('gulp-uglify'),
    imagemin = require('gulp-imagemin'),
    rename = require('gulp-rename'),
    concat = require('gulp-concat'),
    notify = require('gulp-notify'),
    cache = require('gulp-cache'),
    livereload = require('gulp-livereload'),
    del = require('del'),
    jade = require('gulp-jade');

gulp.task('styles', function() {
    return sass('src/css/**/*', {style: 'expanded'})
        .pipe(autoprefixer('last 2 version', 'safari 5', 'ie 8', 'ie 9', 'opera 12.1', 'ios 6', 'android 4'))
        .pipe(gulp.dest('dist/css'))
        .pipe(rename({suffix: '.min'}))
        .pipe(cssnano())
        .pipe(gulp.dest('dist/css'))
        .pipe(notify({message: 'Styles task complete'}));
});

gulp.task('scripts', function() {
  return gulp.src('src/js/**/*.js')
    //.pipe(jshint('.jshintrc'))
    //.pipe(jshint.reporter('default'))
    .pipe(concat('main.js'))
    .pipe(gulp.dest('dist/js'))
    .pipe(rename({ suffix: '.min' }))
    .pipe(uglify())
    .pipe(gulp.dest('dist/js'))
    .pipe(notify({ message: 'Scripts task complete' }));
});

gulp.task('images', function() {
   return gulp.src('src/img/**/*')
    .pipe(cache(imagemin({optiomizetionLevel: 3, progresstive: true, interlaced: true })))
    .pipe(gulp.dest('dist/img'))
    .pipe(notify({message: 'Images task complete'})); 
});

gulp.task('templates', function() {
   return gulp.src('src/*.jade')
    .pipe(jade({
        pretty: true
    }))
    .pipe(gulp.dest('./dist'))
    .pipe(notify({message: 'Templates task complete'}));
});

gulp.task('clean', function () {
    return del(['dist/css/', 'dist/js/', 'dist/img']);
});

gulp.task('default', ['clean'], function() {
  gulp.start('styles', 'scripts', 'images', 'templates');
});

gulp.task('watch', function() {
    gulp.watch('src/css/**/*.scss', ['styles']);
    gulp.watch('src/js/**/*.js', ['scripts']);
    gulp.watch('src/img/**/*', ['images']);
    gulp.watch('src/*.jade', ['templates']);
    
    livereload.listen();
    
    gulp.watch(['dist/**']).on('change', livereload.changed);
});