app = require 'core/application' CreateAccountModal = require 'views/core/CreateAccountModal' Classroom = require 'models/Classroom' CocoCollection = require 'collections/CocoCollection' Course = require 'models/Course' Prepaids = require 'collections/Prepaids' RootView = require 'views/core/RootView' stripeHandler = require 'core/services/stripe' template = require 'templates/courses/purchase-courses-view' User = require 'models/User' utils = require 'core/utils' Products = require 'collections/Products' module.exports = class PurchaseCoursesView extends RootView id: 'purchase-courses-view' template: template numberOfStudents: 30 pricePerStudent: 0 initialize: (options) -> @listenTo stripeHandler, 'received-token', @onStripeReceivedToken @fromClassroom = utils.getQueryVariable('from-classroom') @members = new CocoCollection([], { model: User }) @listenTo @members, 'sync', @membersSync @classrooms = new CocoCollection([], { url: "/db/classroom", model: Classroom }) @classrooms.comparator = '_id' @listenToOnce @classrooms, 'sync', @onceClassroomsSync @supermodel.loadCollection(@classrooms, 'classrooms', {data: {ownerID: me.id}}) @prepaids = new Prepaids() @prepaids.comparator = '_id' @prepaids.fetchByCreator(me.id) @supermodel.loadCollection(@prepaids, 'prepaids') @products = new Products() @supermodel.loadCollection(@products, 'products') super(options) events: 'input #students-input': 'onInputStudentsInput' 'click #purchase-btn': 'onClickPurchaseButton' onLoaded: -> @pricePerStudent = @products.findWhere({name: 'course'}).get('amount') me.setRole 'teacher' super() getPriceString: -> '$' + (@getPrice()/100).toFixed(2) getPrice: -> @pricePerStudent * @numberOfStudents onceClassroomsSync: -> for classroom in @classrooms.models @members.fetch({ remove: false url: "/db/classroom/#{classroom.id}/members" }) membersSync: -> @memberEnrolledMap = {} for user in @members.models @memberEnrolledMap[user.id] = user.get('coursePrepaidID')? @classroomNotEnrolledMap = {} @totalNotEnrolled = 0 for classroom in @classrooms.models @classroomNotEnrolledMap[classroom.id] = 0 for memberID in classroom.get('members') @classroomNotEnrolledMap[classroom.id]++ unless @memberEnrolledMap[memberID] @totalNotEnrolled += @classroomNotEnrolledMap[classroom.id] @numberOfStudents = @totalNotEnrolled @render?() onInputStudentsInput: -> @numberOfStudents = Math.max(parseInt(@$('#students-input').val()) or 0, 0) @updatePrice() updatePrice: -> @renderSelectors '#price-form-group' numberOfStudentsIsValid: -> @numberOfStudents > 0 and @numberOfStudents < 100000 onClickPurchaseButton: -> return @openModalView new CreateAccountModal() if me.isAnonymous() unless @numberOfStudentsIsValid() alert("Please enter the maximum number of students needed for your class.") return @state = undefined @stateMessage = undefined @render() # Show Stripe handler application.tracker?.trackEvent 'Started course prepaid purchase', { price: @pricePerStudent, students: @numberOfStudents} stripeHandler.open amount: @numberOfStudents * @pricePerStudent description: "Full course access for #{@numberOfStudents} students" bitcoin: true alipay: if me.get('country') is 'china' or (me.get('preferredLanguage') or 'en-US')[...2] is 'zh' then true else 'auto' onStripeReceivedToken: (e) -> @state = 'purchasing' @render?() data = maxRedeemers: @numberOfStudents type: 'course' stripe: token: e.token.id timestamp: new Date().getTime() $.ajax({ url: '/db/prepaid/-/purchase', data: data, method: 'POST', context: @ success: -> application.tracker?.trackEvent 'Finished course prepaid purchase', {price: @pricePerStudent, seats: @numberOfStudents} @state = 'purchased' @render?() error: (jqxhr, textStatus, errorThrown) -> application.tracker?.trackEvent 'Failed course prepaid purchase', status: textStatus if jqxhr.status is 402 @state = 'error' @stateMessage = arguments[2] else @state = 'error' @stateMessage = "#{jqxhr.status}: #{jqxhr.responseText}" @render?() })