gulpfile

var gulp = require('gulp'),
    plumber = require('gulp-plumber'),
    browserify = require('gulp-browserify'),
    concat = require('gulp-concat'),
    gulpif = require('gulp-if'),
    uglify = require('gulp-uglify'),
    imagemin = require('gulp-imagemin'),
    jshint = require('gulp-jshint'),
    stylish = require('jshint-stylish'),
    mocha = require('gulp-mocha'),
    karma = require('gulp-karma'),
    sequence = require('run-sequence'),
    less = require('gulp-less'),
    gutil =  require('gulp-util'),
    internal_ip = require('internal-ip'),
    replace = require('gulp-replace');

var paths = {
  dev: {
    main_test_file: './spec/app_spec.js',
    main_js_file: './assets/js/application.js',
    main_css_file: './assets/css/index.less',
    base_js_dir: './assets/js/**',
    js: './assets/js/**/*.js',
    css: './assets/css/**/*.less',
    img: './assets/img/**',
    test_js_files: './spec/js/**/*.js',
    test_js_output: './spec',
    fonts_dir: './assets/css/fonts/**'
  },
  prod: {
    js: './www/js',
    css: './www/css',
    img: './www/img',
    fonts_dir: './www/css/fonts'
  }
};

var isProduction = gutil.env.type === "production";
var app_url =  isProduction ? 'https://in.samesystem.com/mapi/v1/' : 'http://' + internal_ip() + ':3000/mapi/v1/';

gulp.task('js', function() {
  gulp.src(paths.dev.main_js_file)
    .pipe(plumber())
    .pipe(browserify())
    .pipe(concat('index.js'))
    .pipe(gulpif(isProduction, uglify())) // only minify if production
    .pipe(replace('<% same_system_app_url_to_insert %>', app_url))
    .pipe(gulp.dest(paths.prod.js));
});

gulp.task('css', function() {
  gulp.src(paths.dev.main_css_file)
    .pipe(plumber())
    .pipe(less({
      compress: true
    }))
    .pipe(gulp.dest(paths.prod.css));
});

gulp.task('copy:fonts', function() {
  gulp.src(paths.dev.fonts_dir)
    .pipe(gulp.dest(paths.prod.fonts_dir));
});

gulp.task('img', function() {
  gulp.src(paths.dev.img)
    .pipe(plumber())
    .pipe(imagemin({
      // optimizationLevel: 1,
      // progressive: true
    }))
    .pipe(gulp.dest(paths.prod.img));
});

gulp.task('lint', function() {
  gulp.src(paths.dev.js)
    .pipe(jshint())
    .pipe(jshint.reporter(stylish));
});

gulp.task('test:prepare', function() {
  gulp.src('./spec/application.js')
    .pipe(plumber())
    .pipe(browserify())
    .pipe(concat('app_spec.js'))
    .pipe(gulp.dest(paths.dev.test_js_output));
});

gulp.task('test', function() {
  gulp.src(paths.dev.main_test_file)
    .pipe(karma({
      configFile: 'karma.conf.js',
      action: 'run'
    }));
});

gulp.task('watch', function() {
  gulp.watch(paths.dev.base_js_dir, function() {
    sequence(
      'lint',
      'js'//,
      //'test:prepare'
    )
  });
  gulp.watch(paths.dev.test_js_files, function() {
    gulp.run('test:prepare');
  });
  gulp.watch(paths.dev.img, function() {
    gulp.run('img');
  });
  gulp.watch(paths.dev.css, function() {
    gulp.run('css');
  })
});

gulp.task('build', ['js', 'css', 'img', 'copy:fonts']);