/* eslint-env node */

/** Gulp Commands

  gulp command*
    [--export ModuleType]
    [--name ModuleName]
    [--testport TestPort]
    [--testfiles TestFiles]

  Module name (ModuleName):
    Compile this to "y.js" (default)

  Supported module types (ModuleType):
    - amd
    - amdStrict
    - common
    - commonStrict
    - ignore (default)
    - system
    - umd
    - umdStrict

  Test port (TestPort):
    Serve the specs on port 8888 (default)

  Test files (TestFiles):
    Specify which specs to use!

  Commands:
    - build:
        Build this library
    - develop:
        Watch the ./src directory.
        Builds and specs the library on changes.
        Starts an http-server and serves the test suite on http://127.0.0.1:8888.
    - build_test:
        Builds the test suite
    - test:
        Test this library
*/

var gulp = require('gulp')
var sourcemaps = require('gulp-sourcemaps')
var babel = require('gulp-babel')
var uglify = require('gulp-uglify')
var minimist = require('minimist')
var jasmine = require('gulp-jasmine')
var jasmineBrowser = require('gulp-jasmine-browser')
var concat = require('gulp-concat')
var watch = require('gulp-watch')

var polyfills = [
  './node_modules/gulp-babel/node_modules/babel-core/node_modules/regenerator/runtime.js'
]

var options = minimist(process.argv.slice(2), {
  string: ['export', 'name', 'testport', 'testfiles'],
  default: {
    export: 'ignore',
    name: 'y.js',
    testport: '8888',
    testfiles: 'src/**/*.js'
  }
})
var yfiles = polyfills.concat(['src/y.js', 'src/Connector.js', 'src/OperationStore.js', 'src/Struct.js', 'src/Utils.js',
    'src/OperationStores/RedBlackTree.js', 'src/Memory.js', 'src/**/*.js'])

var files = {
  y: yfiles.concat(['!src/**/*.spec.js']),
  test: yfiles.concat([options.testfiles]),
  build_test: ['build_test/y.js']
}

gulp.task('build', function () {
  /*
    return gulp.src(files.y)
    .pipe(sourcemaps.init())
    .pipe(concat(options.name))
    .pipe(babel({
      loose: "all",
      modules: options.export,
      // blacklist: "regenerator" // you can't uglify when regenerator is blacklisted!
    }))
    .pipe(uglify())
    .pipe(sourcemaps.write("."))
    .pipe(gulp.dest("."));*/
  return gulp.src(files.y)
    .pipe(sourcemaps.init())
    .pipe(concat(options.name))
    .pipe(babel({
      loose: 'all',
      modules: 'ignore',
      optional: ['es7.asyncFunctions'],
      blacklist: ['regenerator'],
      experimental: true
    }))
    .pipe(sourcemaps.write())
    .pipe(gulp.dest('.'))
})

gulp.task('test', function () {
  return gulp.src(files.test)
    .pipe(sourcemaps.init())
    .pipe(concat('jasmine'))
    .pipe(babel({
      loose: 'all',
      optional: ['es7.asyncFunctions'],
      modules: 'ignore',
      experimental: true
    }))
    .pipe(uglify())
    .pipe(sourcemaps.write())
    .pipe(gulp.dest('build'))
    .pipe(jasmine({
      verbose: true,
      includeStuckTrace: true
    }))
})

gulp.task('build_jasmine_browser', function () {
  gulp.src(files.test)
    .pipe(sourcemaps.init())
    .pipe(concat('jasmine_browser.js'))
    .pipe(babel({
      loose: 'all',
      modules: 'ignore',
      optional: ['es7.asyncFunctions'],
      // blacklist: "regenerator",
      experimental: true
    }))
    .pipe(sourcemaps.write())
    .pipe(gulp.dest('build'))
})

gulp.task('develop', ['build_jasmine_browser', 'build'], function () {
  gulp.watch(files.test, ['build_jasmine_browser'])
  // gulp.watch(files.test, ["test"])
  gulp.watch(files.test, ['build'])

  return gulp.src('build/jasmine_browser.js')
    .pipe(watch('build/jasmine_browser.js'))
    .pipe(jasmineBrowser.specRunner())
    .pipe(jasmineBrowser.server({port: options.testport}))
})

gulp.task('default', ['build', 'test'])