var gulp = require('gulp');
var elm  = require('gulp-elm');
var concat = require('gulp-concat');
var plumber = require('gulp-plumber');
var livereload = require('gulp-livereload');

var path = ['src/**/*.elm','tests/**/*.elm'];

gulp.task('elm-init', elm.init);

gulp.task('elm', ['elm-init'], function(){
  return gulp.src(path)
    .pipe(plumber())
    .pipe(elm())
    .pipe(concat('elmapp.compiled.js'))
    .pipe(gulp.dest('js'))
    .pipe(livereload());
});

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

gulp.task('watch', function(){
  livereload.listen();
  gulp.watch(path,['elm']);
});