var gulp        = require('gulp');
var rename      = require('gulp-rename');
var sass        = require('gulp-sass');
var cssminify   = require('gulp-csso');
var concat      = require('gulp-concat');
var uglify      = require('gulp-uglify');

// ----------------------------------
//   Config
// ----------------------------------

var config = {
    sass: {
        pattern: 'app/assets/sass/**/*.scss',
        src: 'app/assets/sass/application.scss',
        opt: {
            includePaths: [ 'node_modules/bootstrap-sass/assets/stylesheets' ]
        },
        outputDir: 'public/css',
        outputName: 'application'
    },
    js: {
        src: [
            'node_modules/jquery/dist/jquery.js',
            // Bootstrap
            'node_modules/bootstrap-sass/assets/javascripts/bootstrap.js',
            // Font Awesome
            'app/assets/js/font-awesome/regular.js',
            'app/assets/js/font-awesome/solid.js',
            'app/assets/js/font-awesome/brands.js',
            'app/assets/js/font-awesome/fontawesome.js'
        ],
        outputDir: 'public/js'
    }
};

// ----------------------------------
//   Tasks
// ----------------------------------

gulp.task('build-css', function () {
    return gulp.src(config.sass.src)
        .pipe(sass(config.sass.opt))
        .pipe(cssminify())
        .pipe(rename({ basename: config.sass.outputName, suffix: '.min'}))
        .pipe(gulp.dest(config.sass.outputDir))
});

gulp.task('watch-sass', function() {
    gulp.watch(config.sass.pattern, ['build-css']);
});

gulp.task('build-js', function () {
    return gulp.src(config.js.src)
        .pipe(uglify())
        .pipe(concat('application.min.js'))
        .pipe(gulp.dest(config.js.outputDir));
});

gulp.task('build-assets', ['build-css', 'build-js']);
gulp.task('default', ['watch-sass']);