//first install the dependencies
//npm install gulp jshint gulp-cssmin browser-sync gulp-jshint gulp-sass gulp-concat gulp-uglify gulp-rename --save-dev

// Include gulp
var gulp = require('gulp');

// Include Our Plugins
var jshint = require('gulp-jshint');
var sass = require('gulp-sass');
var concat = require('gulp-concat');
var uglify = require('gulp-uglify');
var rename = require('gulp-rename');
var cssmin = require('gulp-cssmin');
var browserSync = require('browser-sync').create();
var reload = browserSync.reload

// Lint Task
gulp.task('lint', function () {
    return gulp.src('app/js/*.js')
        .pipe(jshint())
        .pipe(jshint.reporter('default'));
});

// Compile Our Sass
gulp.task('sass', function () {
    return gulp.src('app/scss/*.scss')
        .pipe(sass())
        .pipe(gulp.dest('dist/css'));
});

gulp.task('css', function () {
    gulp.src(['app/css/*.css'])
        .pipe(cssmin())
        .pipe(rename({suffix: '.min'}))
        .pipe(gulp.dest('dist/css'))
        .pipe(reload({stream: true}));
});

// Concatenate & Minify JS
gulp.task('scripts', function () {
    return gulp.src('app/js/*.js')
        .pipe(concat('all.js'))
        .pipe(gulp.dest('dist'))
        .pipe(rename('all.min.js'))
        .pipe(uglify())
        .pipe(gulp.dest('dist/js'));
});


gulp.task('js-watch', ['lint','scripts'], function (done) {
    browserSync.reload();
    done();
});

gulp.task('css-watch', ['css'], function (done) {
    browserSync.reload();
    done();
});

// Static server
gulp.task('serve', function() {
    browserSync.init({
        server: "./app"
    });

    gulp.watch('app/js/*.js', ['js-watch']);
    gulp.watch('app/css/*.css', ['css-watch']);
    gulp.watch("app/*.html").on('change', browserSync.reload);
});

// Default Task
gulp.task('default', ['serve']);