'use strict';

/* eslint-disable no-invalid-this */

var util = require('./utils.js');
var npmRun = require('npm-run');

module.exports = function(grunt) {

  grunt.registerMultiTask('min', 'minify JS files', function() {
    util.min(this.data, this.async());
  });


  grunt.registerTask('minall', 'minify all the JS files in parallel', function() {
    var files = grunt.config('min');
    files = Object.keys(files).map(function(key) { return files[key]; });
    grunt.util.async.forEach(files, util.min.bind(util), this.async());
  });


  grunt.registerMultiTask('build', 'build JS files', function() {
    util.build(this.data, this.async());
  });


  grunt.registerTask('buildall', 'build all the JS files in parallel', function() {
    var builds = grunt.config('build');
    builds = Object.keys(builds).map(function(key) { return builds[key]; });
    grunt.util.async.forEach(builds, util.build.bind(util), this.async());
  });


  grunt.registerMultiTask('write', 'write content to a file', function() {
    grunt.file.write(this.data.file, this.data.val);
    grunt.log.ok('wrote to ' + this.data.file);
  });


  grunt.registerTask('docs', 'create AngularJS docs', function() {
    npmRun.execSync('gulp --gulpfile docs/gulpfile.js', {stdio: 'inherit'});
  });


  grunt.registerMultiTask('tests', '**Use `grunt test` instead**', function() {
    util.startKarma(this.data, true, this.async());
  });


  grunt.registerMultiTask('autotest', 'Run and watch the unit tests with Karma', function() {
    util.startKarma(this.data, false, this.async());
  });

  grunt.registerTask('webdriver', 'Update webdriver', function() {
    util.updateWebdriver(this.async());
  });

  grunt.registerMultiTask('protractor', 'Run Protractor integration tests', function() {
    util.startProtractor(this.data, this.async());
  });

  grunt.registerTask('collect-errors', 'Combine stripped error files', function() {
    util.collectErrors();
  });

  grunt.registerTask('firebaseDocsJsonForTravis', function() {
    util.firebaseDocsJsonForTravis();
  });

};
