var gulp = require('gulp'),
    concat = require('gulp-concat'),
    rename = require('gulp-rename'),
    gzip = require('gulp-gzip'),
    uglify = require('gulp-uglify'),
    del = require('del');


var minifyCompress = function (from, to, name) {
    gulp.src(from)
        .pipe(concat(name + '.js'))
        .pipe(gulp.dest(to))
        .pipe(rename(name + '.min.js'))
        .pipe(uglify({mangle: false}))
        .pipe(gzip())
        .pipe(gulp.dest(to));
};

var concatFiles = function (from, to, name) {
    gulp.src(from)
        .pipe(concat(name + '.js'))
        .pipe(gulp.dest(to))
};

gulp.task('clean-temp', function (cb) {
    del([
        'tmp/*'
    ], cb);
});

gulp.task('minify', function () {
    concatFiles('public/js/**/*.js', './tmp/', '0_client');
    concatFiles('lib/angular/**/*.js', './tmp/', '1_angular-libs');
    concatFiles('lib/bootstrap/**/*.js', './tmp/', '2_bootstrap-libs');
    concatFiles('js/**/*.js', './tmp/', '3_app');
    concatFiles('lib/directive/**/*.js', './tmp/', '4_directive-libs');
    concatFiles('lib/filter/**/*.js', './tmp/', '5_filter-libs');
    minifyCompress('tmp/*.js', './dist/', 'app');
});

gulp.task('default', function () {
    gulp.start('minify');
});