compute price including coupon discount

app/assets/javascripts/controllers/machines.coffee.erb

@@ -268,8 +268,8 @@ Application.Controllers.controller "ShowMachineController", ['$scope', '$state',
 # This controller workflow is pretty similar to the trainings reservation controller.
 ##
 
-Application.Controllers.controller "ReserveMachineController", ["$scope", "$state", '$stateParams', "$uibModal", '_t', "moment", 'Machine', 'Auth', 'dialogs', '$timeout', 'Price', 'Member', 'Availability', 'Slot', 'Setting', 'CustomAsset',  'plansPromise', 'groupsPromise', 'growl', 'settingsPromise', 'Wallet', 'helpers', 'uiCalendarConfig', 'CalendarConfig',
-($scope, $state, $stateParams, $uibModal, _t, moment, Machine, Auth, dialogs, $timeout, Price, Member, Availability, Slot, Setting, CustomAsset, plansPromise, groupsPromise, growl, settingsPromise, Wallet, helpers, uiCalendarConfig, CalendarConfig) ->
+Application.Controllers.controller "ReserveMachineController", ["$scope", "$state", '$stateParams', "$uibModal", '_t', "moment", 'Machine', 'Auth', 'dialogs', '$timeout', 'Price', 'Member', 'Availability', 'Slot', 'Setting', 'CustomAsset',  'plansPromise', 'groupsPromise', 'growl', 'machinePromise', 'settingsPromise', 'Wallet', 'helpers', 'uiCalendarConfig', 'CalendarConfig',
+($scope, $state, $stateParams, $uibModal, _t, moment, Machine, Auth, dialogs, $timeout, Price, Member, Availability, Slot, Setting, CustomAsset, plansPromise, groupsPromise, growl, machinePromise, settingsPromise, Wallet, helpers, uiCalendarConfig, CalendarConfig) ->
 
 
 
@@ -309,6 +309,10 @@ Application.Controllers.controller "ReserveMachineController", ["$scope", "$stat
   ## total amount of the bill to pay
   $scope.amountTotal = 0
 
+  ## Discount coupon to apply to the basket, if any
+  $scope.coupon =
+      applied: null
+
   ## is the user allowed to change the date of his booking
   $scope.enableBookingMove = true
 
@@ -328,7 +332,7 @@ Application.Controllers.controller "ReserveMachineController", ["$scope", "$stat
     member: {}
 
   ## current machine to reserve
-  $scope.machine = {}
+  $scope.machine = machinePromise
 
   ## fullCalendar (v2) configuration
   $scope.calendarConfig = CalendarConfig
@@ -599,11 +603,10 @@ Application.Controllers.controller "ReserveMachineController", ["$scope", "$stat
     if $scope.currentUser.role isnt 'admin'
       $scope.ctrl.member = $scope.currentUser
 
-    $scope.machine = Machine.get {id: $stateParams.id}
-    , ->
-      return
-    , ->
-      $state.go('app.public.machines_list')
+    # watch when a coupon is applied to re-compute the total price
+    $scope.$watch 'coupon.applied', (newValue, oldValue) ->
+      unless newValue == null and oldValue == null
+        updateCartPrice()
 
 
 
@@ -638,7 +641,10 @@ Application.Controllers.controller "ReserveMachineController", ["$scope", "$stat
   updateCartPrice = ->
     if Object.keys($scope.ctrl.member).length > 0
       r = mkReservation($scope.ctrl.member, $scope.eventsReserved, $scope.selectedPlan)
-      Price.compute {reservation: r}, (res) ->
+      params = {reservation: r}
+      if $scope.coupon.applied
+        params['coupon_id'] = $scope.coupon.applied.id
+      Price.compute params, (res) ->
         $scope.amountTotal = res.price
         setSlotsDetails(res.details)
     else

app/assets/javascripts/directives/coupon.coffee.erb

@@ -3,6 +3,7 @@ Application.Directives.directive 'coupon', [ 'Coupon', 'growl', '_t', (Coupon, g
     restrict: 'E'
     scope:
       show: '='
+      coupon: '='
     templateUrl: '<%= asset_path "shared/_coupon.html" %>'
     link: ($scope, element, attributes) ->
 
@@ -24,12 +25,15 @@ Application.Directives.directive 'coupon', [ 'Coupon', 'growl', '_t', (Coupon, g
       $scope.validateCode = ->
         if $scope.couponCode == ''
           $scope.status = 'pending'
+          $scope.coupon = null
         else
           Coupon.validate {code: $scope.couponCode}, (res) ->
             $scope.status = 'valid'
+            $scope.coupon = res
             growl.success(_t('the_coupon_has_been_applied_you_get_PERCENT_discount', {PERCENT: res.percent_off}))
           , (err) ->
             $scope.status = 'invalid'
+            $scope.coupon = null
             growl.error(_t('unable_to_apply_the_coupon_because_'+err.data.status))
   }
 ]

app/assets/javascripts/router.coffee.erb

@@ -351,6 +351,9 @@ angular.module('application.router', ['ui.router']).
           groupsPromise: ['Group', (Group)->
             Group.query().$promise
           ]
+          machinePromise: ['Machine', '$stateParams', (Machine, $stateParams)->
+            Machine.get(id: $stateParams.id).$promise
+          ]
           settingsPromise: ['Setting', (Setting)->
             Setting.query(names: "['machine_explications_alert',
                                    'booking_window_start',

app/assets/templates/machines/reserve.html.erb

@@ -78,7 +78,7 @@
           <div class="clear"><a class="pull-right m-b-sm text-u-l ng-scope m-r-sm" href="#" ng-click="removeMachineSlot(machineSlot, $event)" ng-if="machineSlot.isValid" translate>{{ 'remove_this_slot' }}</a></div>
         </div>
 
-        <coupon show="machineSlotsValid() && (!plansAreShown || selectedPlan)"></coupon>
+        <coupon show="machineSlotsValid() && (!plansAreShown || selectedPlan)" coupon="coupon.applied" callback="setCouponCb()"></coupon>
 
         <span ng-hide="fablabWithoutPlans">
           <div ng-if="machineSlotsValid() && !ctrl.member.subscribed_plan" ng-show="!plansAreShown">

app/controllers/api/prices_controller.rb

@@ -44,7 +44,7 @@ class API::PricesController < API::ApiController
       @amount = {elements: nil, total: 0}
     else
       _reservable = _price_params[:reservable_type].constantize.find(_price_params[:reservable_id])
-      @amount = Price.compute(current_user.is_admin?, _user, _reservable, _price_params[:slots_attributes], _price_params[:plan_id], _price_params[:nb_reserve_places], _price_params[:nb_reserve_reduced_places])
+      @amount = Price.compute(current_user.is_admin?, _user, _reservable, _price_params[:slots_attributes], _price_params[:plan_id], _price_params[:nb_reserve_places], _price_params[:nb_reserve_reduced_places], coupon_params[:coupon_id])
     end
 
 
@@ -64,4 +64,8 @@ class API::PricesController < API::ApiController
     params.require(:reservation).permit(:reservable_id, :reservable_type, :plan_id, :user_id, :nb_reserve_places, :nb_reserve_reduced_places,
                                         slots_attributes: [:id, :start_at, :end_at, :availability_id, :offered])
   end
+
+  def coupon_params
+    params.permit(:coupon_id)
+  end
 end

app/models/price.rb

@@ -14,9 +14,10 @@ class Price < ActiveRecord::Base
   # @param [plan_id] {Number} if the user is subscribing to a plan at the same time of his reservation, specify the plan's ID here
   # @param [nb_places] {Number} for _reservable_ of type Event, pass here the number of booked places
   # @param [nb_reduced_places] {Number} for _reservable_ of type Event, pass here the number of booked places at reduced price
+  # @param [coupon_id] {Number} ID of the coupon to apply to the total price
   # @return {Hash} total and price detail
   ##
-  def self.compute(admin, user, reservable, slots, plan_id = nil, nb_places = nil, nb_reduced_places = nil)
+  def self.compute(admin, user, reservable, slots, plan_id = nil, nb_places = nil, nb_reduced_places = nil, coupon_id = nil)
     _amount = 0
     _elements = Hash.new
     _elements[:slots] = Array.new
@@ -110,6 +111,12 @@ class Price < ActiveRecord::Base
       _amount += plan.amount
     end
 
+    # === apply Coupon if any ===
+    unless coupon_id.nil?
+      _coupon = Coupon.find(coupon_id)
+      _amount = _amount - (_amount  * _coupon.percent_off / 100)
+    end
+
     # return result
     {elements: _elements, total: _amount}
   end