var argv = require('yargs').argv;

var gulp = require('gulp');

// Plugins.

var jshint = require('gulp-jshint');

var stylish = require('jshint-stylish');

var sass = require('gulp-sass');

var sourcemaps = require('gulp-sourcemaps');

var concat = require('gulp-concat');

var uglify = require('gulp-uglify');

var ngAnnotate = require('gulp-ng-annotate');

var rename = require('gulp-rename');

var gulpif = require('gulp-if');

var jsonlint = require("gulp-jsonlint");

var header = require('gulp-header');

var pkg = require('./version.json');

var banner = ['/**',

' * @name <%= pkg.name %>',

' * @version v<%= pkg.version %>',

' * @link <%= pkg.link %>',

' */',

''].join('\n');

// We only want to process our own non-processed JavaScript files.

var jsPath = ['./js/search.js', './js/*/*.js', '!./js/assets/*'];

var jsAssets = ['./js/assets/*.min.js', '!./js/assets/angular.js', '!./js/assets/angular.min.js'];

var sassPath = './scss/*.scss';

var jsonPath = [ './version.json' ]

var buildDir = './build';

/**

* Run Javascript through JSHint.

*/

gulp.task('jshint', function() {

return gulp.src(jsPath)

.pipe(jshint())

.pipe(jshint.reporter(stylish));

});

/**

* Process SCSS using libsass

*/

gulp.task('sass', function () {

gulp.src(sassPath)

.pipe(sourcemaps.init())

.pipe(sass({

outputStyle: 'compressed',

includePaths: [

'bower_components/compass-mixins/lib',

'bower_components/foundation/scss'

]

}).on('error', sass.logError))

.pipe(sourcemaps.write())

.pipe(gulp.dest('./stylesheets'));

});

/**

* Watch files for changes and run tasks.

*/

gulp.task('watch', function() {

gulp.watch(jsPath, ['jshint']);

gulp.watch(sassPath, ['sass']);

gulp.watch(jsonPath, ['json']);

});

/**

* Watch javascript files for changes.

*/

gulp.task('js-watch', function() {

gulp.watch(jsPath, ['jshint']);

});

/**

* Build single app.js file.

*/

gulp.task('appJs', function () {

gulp.src(jsPath)

.pipe(sourcemaps.init())

.pipe(concat('search.js'))

.pipe(ngAnnotate())

.pipe(gulpif(argv.production, uglify()))

.pipe(sourcemaps.write('/maps'))

.pipe(gulpif(argv.production, rename({extname: ".min.js"})))

.pipe(header(banner, { pkg : pkg } ))

.pipe(gulp.dest(buildDir))

});

/**

* Build single app.js file.

*/

gulp.task('assetsJs', function () {

gulp.src(jsAssets)

.pipe(concat('assets.js'))

.pipe(gulpif(argv.production, rename({extname: ".min.js"})))

.pipe(gulp.dest(buildDir))

});

/**

* Check json files.

*/

gulp.task('json', function() {

gulp.src(jsonPath)

.pipe(jsonlint())

.pipe(jsonlint.reporter());

});

// Tasks to compile sass and watch js file.

gulp.task('default', ['sass', 'watch']);

gulp.task('build', ['appJs', 'assetsJs', 'sass']);