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