'use strict';

import gulp from 'gulp';
const { series, src, dest, watch } = gulp;
import gulpif from 'gulp-if';
import * as dartSass from 'sass';
import gulpSass from 'gulp-sass';
const sass = gulpSass(dartSass);
import autoprefixer from 'gulp-autoprefixer';
import stripDebug from 'gulp-strip-debug';
import jsmin from 'gulp-jsmin';
import cssmin from 'gulp-cssmin';
import rename from 'gulp-rename';
import minimist from 'minimist';

// var es = require('event-stream');

var modules = ['edlp_corpus', 'edlp_studio', 'edlp_search'];

// to get minified assets run `gulp --env=prod`
var argv = minimist(process.argv.slice(2));
console.dir(argv);
var prod = argv.env == 'prod' ? true : false;

function handleError(err) {
  console.log(err.toString());
}

function scripts() {
  return new Promise(function(resolve, reject) {
    modules.map(function(module) {
      src('./'+module+'/assets/scripts/*.js')
        .pipe(gulpif(prod, stripDebug()))
        .pipe(gulpif(prod, jsmin()))
        .pipe(rename({suffix: '.min'}))
        .pipe(gulp.dest('./'+module+'/assets/dist/scripts/'));
    });
    resolve();
  });
};

function styles() {
  return new Promise(function(resolve, reject) {
    modules.map(function(module) {
      src('./'+module+'/assets/styles/*.scss')
        .pipe(sass().on('error', sass.logError))
        .pipe(autoprefixer({
            cascade: false
        })).on('error', handleError)
        .pipe(gulpif(prod, cssmin()))
        // .pipe(cssmin())
        .pipe(rename({suffix: '.min'}))
        .pipe(gulp.dest('./'+module+'/assets/dist/styles/'));
    });
    resolve();
  });
};

// default gulp task
function devwatch () {
  // series(scripts, styles, done => {
    for (var i = 0; i < modules.length; i++) {
      watch('./'+modules[i]+'/assets/styles/*.scss', styles);
      watch('./'+modules[i]+'/assets/scripts/*.js', scripts);
    }
  //   done()
  // })
};


export default series(scripts, styles);
export { devwatch }