var path = require('path')

var gulp = require('gulp')
var gutil = require('gulp-util')
var jshint = require('gulp-jshint')
var jsonlint = require('gulp-jsonlint')
var standard = require('gulp-standard')
var webpack = require('webpack')
var webpackConfig = require('./webpack.config').webpack
var webpackStatusConfig = require('./res/common/status/webpack.config')
var gettext = require('gulp-angular-gettext')
var jade = require('gulp-jade')
var del = require('del')
//var protractor = require('gulp-protractor')
var protractor = require('./res/test/e2e/helpers/gulp-protractor-adv')
var protractorConfig = './res/test/protractor.conf'
var karma = require('karma').server
var karmaConfig = '/res/test/karma.conf.js'
var stream = require('stream')
var jscs = require('gulp-jscs')
var run = require('gulp-run')

gulp.task('jshint', function () {
  return gulp.src([
      'lib/**/*.js'
    , 'res/app/**/*.js'
    , 'res/auth-ldap/**/*.js'
    , 'res/auth-mock/**/*.js'
    , 'res/common/**/*.js'
    , 'res/test/**/*.js'
    , '*.js'
    ])
    .pipe(jshint())
    .pipe(jshint.reporter('jshint-stylish'))
})

gulp.task('jsonlint', function () {
  return gulp.src([
      '.jshintrc'
    , 'res/.jshintrc'
    , '.bowerrc'
    , '.yo-rc.json'
    , '*.json'
    ])
    .pipe(jsonlint())
    .pipe(jsonlint.reporter())
})

gulp.task('jscs', function () {
  return gulp.src([
      'lib/**/*.js'
    , 'res/app/**/*.js'
    , 'res/auth-ldap/**/*.js'
    , 'res/auth-mock/**/*.js'
    , 'res/common/**/*.js'
    , 'res/test/**/*.js'
    , '*.js'
    ])
    .pipe(jscs())
})

gulp.task('standard', function () {
  // Check res/app for now
  return gulp.src(['res/app/**/*.js', '!**/*-spec.js'])
    .pipe(standard())
    .pipe(standard.reporter('default', {
      breakOnError: true
    }))
})

gulp.task('lint', ['jshint', 'jsonlint'])
gulp.task('test', ['lint', 'run:checkversion'])
gulp.task('build', ['clean', 'webpack:build'])

gulp.task('run:checkversion', function () {
  gutil.log('Checking STF version...')
  return run('./bin/stf -V').exec()
})

gulp.task('karma_ci', function (done) {
  karma.start({
    configFile: path.join(__dirname, karmaConfig)
  , singleRun: true
  }, done)
})

gulp.task('karma', function (done) {
  karma.start({
    configFile: path.join(__dirname, karmaConfig)
  }, done)
})

if (gutil.env.multi) {
  protractorConfig = './res/test/protractor-multi.conf'
} else if (gutil.env.appium) {
  protractorConfig = './res/test/protractor-appium.conf'
}

gulp.task('webdriver-update', protractor.webdriverUpdate)
gulp.task('webdriver-standalone', protractor.webdriverStandalone)
gulp.task('protractor-explorer', function (callback) {
  protractor.protractorExplorer({
    url: require(protractorConfig).config.baseUrl
  }, callback)
})

gulp.task('protractor', ['webdriver-update'], function (callback) {
  gulp.src(['./res/test/e2e/**/*.js'])
    .pipe(protractor.protractor({
      configFile: protractorConfig
    , debug: gutil.env.debug
    , suite: gutil.env.suite
    }))
    .on('error', function (e) {
      console.log(e)
    })
    .on('end', callback)
})

// For piping strings
function fromString(filename, string) {
  /* eslint no-underscore-dangle: 0 */
  var src = new stream.Readable({objectMode: true})
  src._read = function () {
    this.push(new gutil.File({
      cwd: ''
    , base: ''
    , path: filename
    , contents: new Buffer(string)
    }))
    this.push(null)
  }
  return src
}


// For production
gulp.task('webpack:build', function (callback) {
  var myConfig = Object.create(webpackConfig)
  myConfig.plugins = myConfig.plugins.concat(
    new webpack.DefinePlugin({
      'process.env': {
        'NODE_ENV': JSON.stringify('production')
      }
    })
  )
  myConfig.devtool = false

  webpack(myConfig, function (err, stats) {
    if (err) {
      throw new gutil.PluginError('webpack:build', err)
    }

    gutil.log('[webpack:build]', stats.toString({
      colors: true
    }))

    // Save stats to a json file
    // Can be analyzed in http://webpack.github.io/analyse/
    fromString('stats.json', JSON.stringify(stats.toJson()))
      .pipe(gulp.dest('./tmp/'))

    callback()
  })
})

gulp.task('webpack:others', function (callback) {
  var myConfig = Object.create(webpackStatusConfig)
  myConfig.plugins = myConfig.plugins.concat(
    new webpack.DefinePlugin({
      'process.env': {
        'NODE_ENV': JSON.stringify('production')
      }
    })
  )
  myConfig.devtool = false

  webpack(myConfig, function (err, stats) {
    if (err) {
      throw new gutil.PluginError('webpack:others', err)
    }

    gutil.log('[webpack:others]', stats.toString({
      colors: true
    }))
    callback()
  })
})

gulp.task('translate', [
  'translate:extract'
, 'translate:push'
, 'translate:pull'
, 'translate:compile'
])

gulp.task('jade', function () {
  return gulp.src([
      './res/**/*.jade'
    , '!./res/bower_components/**'
    ])
    .pipe(jade({
      locals: {
        // So res/views/docs.jade doesn't complain
        markdownFile: {
          parseContent: function () {
          }
        }
      }
    }))
    .pipe(gulp.dest('./tmp/html/'))
})

gulp.task('translate:extract', ['jade'], function () {
  return gulp.src([
      './tmp/html/**/*.html'
    , './res/**/*.js'
    , '!./res/bower_components/**'
    , '!./res/build/**'
    ])
    .pipe(gettext.extract('stf.pot'))
    .pipe(gulp.dest('./res/common/lang/po/'))
})

gulp.task('translate:compile', function () {
  return gulp.src('./res/common/lang/po/**/*.po')
    .pipe(gettext.compile({
      format: 'json'
    }))
    .pipe(gulp.dest('./res/common/lang/translations/'))
})

gulp.task('translate:push', function () {
  gutil.log('Pushing translation source to Transifex...')
  return run('tx push -s').exec()
})

gulp.task('translate:pull', function () {
  gutil.log('Pulling translations from Transifex...')
  return run('tx pull').exec()
})

gulp.task('clean', function (cb) {
  del(['./tmp', './res/build'], cb)
})