var gulp = require('gulp');
var sass = require('gulp-sass');
var browserSync = require('browser-sync').create();
var header = require('gulp-header');
var cleanCSS = require('gulp-clean-css');
var rename = require("gulp-rename");
var pkg = require('./package.json');

// Set the banner content
var banner = ['/*!\n',
  ' * Start Bootstrap - <%= pkg.title %> v<%= pkg.version %> (<%= pkg.homepage %>)\n',
  ' * Copyright 2013-' + (new Date()).getFullYear(), ' <%= pkg.author %>\n',
  ' * Licensed under <%= pkg.license %> (https://github.com/BlackrockDigital/<%= pkg.name %>/blob/master/LICENSE)\n',
  ' */\n',
  ''
].join('');

// Compile SCSS
gulp.task('css:compile', function() {
  return gulp.src('./scss/**/*.scss')
    .pipe(sass.sync({
      outputStyle: 'expanded'
    }).on('error', sass.logError))
    .pipe(gulp.dest('./css'))
});

// Minify CSS
gulp.task('css:minify', ['css:compile'], function() {
  return gulp.src([
      './css/*.css',
      '!./css/*.min.css'
    ])
    .pipe(cleanCSS())
    .pipe(rename({
      suffix: '.min'
    }))
    .pipe(gulp.dest('./css'))
    .pipe(browserSync.stream());
});

// CSS
gulp.task('css', ['css:compile', 'css:minify']);

// Copy vendor files from /node_modules into /vendor
gulp.task('copy', function() {
  gulp.src([
      'node_modules/bootstrap/dist/**/*',
      '!**/npm.js',
      '!**/bootstrap-theme.*',
      '!**/*.map'
    ])
    .pipe(gulp.dest('vendor/bootstrap'))

  gulp.src(['node_modules/jquery/dist/jquery.js', 'node_modules/jquery/dist/jquery.min.js'])
    .pipe(gulp.dest('vendor/jquery'))
})

// Default task
gulp.task('default', ['css', 'copy']);

// Configure the browserSync task
gulp.task('browserSync', function() {
  browserSync.init({
    server: {
      baseDir: "./"
    }
  });
});

// Dev task with browserSync
gulp.task('dev', ['browserSync', 'css'], function() {
  gulp.watch('./scss/*.scss', ['css']);
  // Reloads the browser whenever HTML or JS files change
  gulp.watch('*.html', browserSync.reload);
});