gulpfile.coffee

import gulp          from 'gulp'

import autoprefixer  from 'gulp-autoprefixer'
import compileCoffee from 'gulp-coffee'
import concat        from 'gulp-concat'
import rename        from 'gulp-rename'
import compileSass   from 'gulp-sass'
import uglify        from 'gulp-uglify'

export js = ->
  gulp.src 'coffee/**/*.coffee', sourcemaps: true
    .pipe compileCoffee()
    .pipe concat 'application.js'
    .pipe uglify()
    .pipe rename extname: '.min.js'
    .pipe gulp.dest 'output/js/'

export css = ->
  gulp.src 'scss/**/*.scss', sourcemaps: true
    .pipe compileSass().on 'error', compileSass.logError
    .pipe autoprefixer()
    .pipe rename extname: '.min.css'
    .pipe gulp.dest 'output/css/'

export images = ->
  gulp.src 'images/**/*'
    .pipe gulp.dest 'output/img/'

export build = gulp.parallel js, css, images

export watch = ->
  gulp.watch 'coffee/**/*.coffee', js
  gulp.watch 'scss/**/*.scss', css
  gulp.watch 'images/**/*', images

export default build