display time promotion on client order

ecommerce/pricing/test/apply_time_promotion_test.rb

@@ -17,14 +17,14 @@ def test_applies_biggest_time_promotion_discount
       end
     end
 
-    def test_resets_time_promotion_discount
+    def test_removes_time_promotion_discount
       order_id = SecureRandom.uuid
       product_id = SecureRandom.uuid
       create_active_time_promotion(50)
       set_time_promotion_discount(order_id, 50)
 
       Timecop.travel(1.minute.from_now) do
-        assert_events_contain(stream_name(order_id), percentage_discount_reset_event(order_id)) do
+        assert_events_contain(stream_name(order_id), percentage_discount_removed_event(order_id)) do
           Pricing::ApplyTimePromotion.new.call(item_added_to_basket_event(order_id, product_id))
         end
       end
@@ -79,7 +79,7 @@ def percentage_discount_set_event(order_id, amount)
       )
     end
 
-    def percentage_discount_reset_event(order_id)
+    def percentage_discount_removed_event(order_id)
       PercentageDiscountRemoved.new(
         data: {
           order_id: order_id,

ecommerce/pricing/test/pricing_test.rb

@@ -117,7 +117,7 @@ def test_does_not_set_the_same_time_promotion_discount_twice
       assert_raises(NotPossibleToAssignDiscountTwice) { set_time_promotion_discount(order_id, 25) }
     end
 
-    def test_resets_time_promotion_discount
+    def test_removes_time_promotion_discount
       order_id = SecureRandom.uuid
       stream = stream_name(order_id)
       create_active_time_promotion(25)
@@ -296,7 +296,7 @@ def test_changing_discount_not_possible_when_discount_is_not_set
       end
     end
 
-    def test_changing_discount_not_possible_when_discount_is_reset
+    def test_changing_discount_not_possible_when_discount_is_removed
       product_1_id = SecureRandom.uuid
       set_price(product_1_id, 20)
       order_id = SecureRandom.uuid
@@ -384,7 +384,7 @@ def test_changing_discount_possible_more_than_once
       end
     end
 
-    def test_resetting_discount_possible_when_discount_has_been_set_and_then_changed
+    def test_removing_discount_possible_when_discount_has_been_set_and_then_changed
       product_1_id = SecureRandom.uuid
       set_price(product_1_id, 20)
       order_id = SecureRandom.uuid
@@ -419,7 +419,7 @@ def test_resetting_discount_possible_when_discount_has_been_set_and_then_changed
       end
     end
 
-    def test_resetting_with_missing_discount_not_possible
+    def test_removing_with_missing_discount_not_possible
       product_1_id = SecureRandom.uuid
       set_price(product_1_id, 20)
       order_id = SecureRandom.uuid

rails_application/app/read_models/client_orders/configuration.rb

@@ -55,6 +55,8 @@ def call(event_store)
       event_store.subscribe(ProductHandlers::ChangeProductPrice, to: [Pricing::PriceSet])
       event_store.subscribe(ProductHandlers::RegisterProduct, to: [ProductCatalog::ProductRegistered])
       event_store.subscribe(ProductHandlers::UpdateProductAvailability, to: [Inventory::AvailabilityChanged])
+      event_store.subscribe(OrderHandlers::UpdateTimePromotionDiscount, to: [Pricing::PercentageDiscountSet])
+      event_store.subscribe(OrderHandlers::RemoveTimePromotionDiscount, to: [Pricing::PercentageDiscountRemoved])
       event_store.subscribe(OrderHandlers::UpdateDiscount, to: [Pricing::PercentageDiscountSet, Pricing::PercentageDiscountChanged])
       event_store.subscribe(OrderHandlers::RemoveDiscount, to: [Pricing::PercentageDiscountRemoved])
       event_store.subscribe(OrderHandlers::UpdateOrderTotalValue, to: [Pricing::OrderTotalValueCalculated])

rails_application/app/read_models/client_orders/order_handlers.rb

@@ -19,12 +19,24 @@ def call(event)
 
     class UpdateDiscount
       def call(event)
+        return unless event.data.fetch(:type) == Pricing::Discounts::GENERAL_DISCOUNT
+
         order = Order.find_or_create_by!(order_uid: event.data.fetch(:order_id))
         order.percentage_discount = event.data.fetch(:amount)
         order.save!
       end
     end
 
+    class UpdateTimePromotionDiscount
+      def call(event)
+        return unless event.data.fetch(:type) == Pricing::Discounts::TIME_PROMOTION_DISCOUNT
+
+        order = Order.find_or_create_by!(order_uid: event.data.fetch(:order_id))
+        order.time_promotion_discount = event.data.fetch(:amount)
+        order.save!
+      end
+    end
+
     class UpdateOrderTotalValue
       def call(event)
         order = Order.find_or_create_by!(order_uid: event.data.fetch(:order_id)) { |order| order.state = "Draft" }
@@ -90,10 +102,22 @@ def call(event)
 
     class RemoveDiscount
       def call(event)
+        return unless event.data.fetch(:type) == Pricing::Discounts::GENERAL_DISCOUNT
+
         order = Order.find_by(order_uid: event.data.fetch(:order_id))
         order.percentage_discount = nil
         order.save!
       end
     end
+
+    class RemoveTimePromotionDiscount
+      def call(event)
+        return unless event.data.fetch(:type) == Pricing::Discounts::TIME_PROMOTION_DISCOUNT
+
+        order = Order.find_by(order_uid: event.data.fetch(:order_id))
+        order.time_promotion_discount = nil
+        order.save!
+      end
+    end
   end
 end

rails_application/app/read_models/client_orders/rendering/show_order.rb

@@ -77,6 +77,7 @@ def footer_rows(order)
         tfoot class: "border-t-4" do
           before_discounts_row(order) if order.discounted_value != order.total_value
           general_discount_row(order) if order.percentage_discount
+          time_promotion_row(order) if order.time_promotion_discount
           total_row(order)
         end
       end
@@ -95,6 +96,13 @@ def general_discount_row(order)
         end
       end
 
+      def time_promotion_row(order)
+        tr class: "border-t" do
+          td(class: "py-2", colspan: 3) { "Time promotion discount" }
+          td(class: "py-2 text-right") { "#{order.time_promotion_discount}%" }
+        end
+      end
+
       def total_row(order)
         tr class: "border-t" do
           td(class: "py-2", colspan: 3) { "Total" }

rails_application/db/migrate/20241129122521_add_time_promotion_discount_to_client_orders.rb

@@ -0,0 +1,5 @@
+class AddTimePromotionDiscountToClientOrders < ActiveRecord::Migration[7.2]
+  def change
+    add_column :client_orders, :time_promotion_discount, :decimal, precision: 8, scale: 2
+  end
+end

rails_application/db/schema.rb

@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema[7.2].define(version: 2024_10_18_113912) do
+ActiveRecord::Schema[7.2].define(version: 2024_11_29_122521) do
   # These are extensions that must be enabled in order to support this database
   enable_extension "pgcrypto"
   enable_extension "plpgsql"
@@ -60,6 +60,7 @@
     t.decimal "percentage_discount", precision: 8, scale: 2
     t.decimal "total_value", precision: 8, scale: 2
     t.decimal "discounted_value", precision: 8, scale: 2
+    t.decimal "time_promotion_discount", precision: 8, scale: 2
   end
 
   create_table "clients", force: :cascade do |t|

rails_application/test/client_orders/discount_test.rb

@@ -18,6 +18,7 @@ def test_discount_set
       assert_equal 50, order.total_value
       assert_equal 45, order.discounted_value
       assert_equal 10, order.percentage_discount
+      assert_nil order.time_promotion_discount
     end
 
     def test_discount_changed
@@ -35,27 +36,42 @@ def test_discount_changed
       assert_equal 50, order.total_value
       assert_equal 49.5, order.discounted_value
       assert_equal 1, order.percentage_discount
+      assert_nil order.time_promotion_discount
     end
 
-    def test_remove_discount
+    def test_does_not_remove_time_promotion_when_removing_percentage_discount
       customer_id = SecureRandom.uuid
       product_id = SecureRandom.uuid
       order_id = SecureRandom.uuid
       customer_registered(customer_id)
       prepare_product(product_id)
+      create_active_time_promotion(50)
       item_added_to_basket(order_id, product_id)
       set_percentage_discount(order_id)
 
       remove_percentage_discount(order_id)
 
       order = Order.find_by(order_uid: order_id)
       assert_equal(50, order.total_value)
-      assert_equal(50, order.discounted_value)
+      assert_equal(25, order.discounted_value)
       assert_nil(order.percentage_discount)
+      assert_equal(50, order.time_promotion_discount)
     end
 
     private
 
+    def create_active_time_promotion(discount)
+      run_command(
+        Pricing::CreateTimePromotion.new(
+          time_promotion_id: SecureRandom.uuid,
+          discount: discount,
+          start_time: Time.current - 1,
+          end_time: Time.current + 1,
+          label: "Last Minute"
+        )
+      )
+    end
+
     def remove_percentage_discount(order_id)
       run_command(Pricing::RemovePercentageDiscount.new(order_id: order_id))
     end

rails_application/test/client_orders/time_promotion_discount_test.rb

@@ -0,0 +1,88 @@
+require "test_helper"
+
+module ClientOrders
+  class TimePromotionDiscountTest < InMemoryTestCase
+    cover "ClientOrders*"
+
+    def test_time_promotion_set
+      customer_id = SecureRandom.uuid
+      product_id = SecureRandom.uuid
+      order_id = SecureRandom.uuid
+      customer_registered(customer_id)
+      prepare_product(product_id)
+      create_active_time_promotion(50)
+      item_added_to_basket(order_id, product_id)
+
+      order = ClientOrders::Order.find_by(order_uid: order_id)
+      assert_equal 50, order.total_value
+      assert_equal 25, order.discounted_value
+      assert_equal 50, order.time_promotion_discount
+      assert_nil order.percentage_discount
+    end
+
+    def test_does_not_remove_percentage_discount_when_removing_time_promotion
+      customer_id = SecureRandom.uuid
+      product_id = SecureRandom.uuid
+      order_id = SecureRandom.uuid
+      customer_registered(customer_id)
+      prepare_product(product_id)
+      create_active_time_promotion(50)
+      set_percentage_discount(order_id)
+
+      travel_to Time.current + 1.day do
+        item_added_to_basket(order_id, product_id)
+      end
+
+      order = ClientOrders::Order.find_by(order_uid: order_id)
+      assert_equal(50, order.total_value)
+      assert_equal(45, order.discounted_value)
+      assert_equal(10, order.percentage_discount)
+      assert_nil(order.time_promotion_discount)
+    end
+
+    private
+
+    def create_active_time_promotion(discount)
+      run_command(
+        Pricing::CreateTimePromotion.new(
+          time_promotion_id: SecureRandom.uuid,
+          discount: discount,
+          start_time: Time.current - 1,
+          end_time: Time.current + 1,
+          label: "Last Minute"
+        )
+      )
+    end
+
+    def set_percentage_discount(order_id)
+      run_command(Pricing::SetPercentageDiscount.new(order_id: order_id, amount: 10))
+    end
+
+    def item_added_to_basket(order_id, product_id)
+      run_command(Pricing::AddPriceItem.new(product_id: product_id, order_id: order_id))
+    end
+
+    def prepare_product(product_id)
+      run_command(
+        ProductCatalog::RegisterProduct.new(
+          product_id: product_id,
+        )
+      )
+      run_command(
+        ProductCatalog::NameProduct.new(
+          product_id: product_id,
+          name: "Async Remote"
+        )
+      )
+      run_command(Pricing::SetPrice.new(product_id: product_id, price: 50))
+    end
+
+    def customer_registered(customer_id)
+      event_store.publish(Crm::CustomerRegistered.new(data: { customer_id: customer_id, name: "Arkency" }))
+    end
+
+    def event_store
+      Rails.configuration.event_store
+    end
+  end
+end

rails_application/test/integration/client_orders_test.rb

@@ -197,6 +197,7 @@ def test_current_time_promotion_is_applied
     as_client_add_item_to_basket_for_order(product_id, order_id)
     as_client_submit_order_for_customer(order_id)
 
+    assert_select "tr td", "50.0%"
     assert_select "tr td", "$2.00"
   end
 

rails_application/test/orders/discount_test.rb

@@ -59,7 +59,7 @@ def test_remove_discount
       assert event_store.event_in_stream?(event_store.read.of_type([Pricing::PercentageDiscountRemoved]).last.event_id, "Orders$all")
     end
 
-    def test_does_not_remove_percentage_discount_when_time_promotion_reset
+    def test_does_not_remove_percentage_discount_when_removing_time_promotion
       customer_id = SecureRandom.uuid
       product_id = SecureRandom.uuid
       order_id = SecureRandom.uuid

rails_application/test/orders/remove_time_promotion_discount_test.rb

@@ -4,7 +4,7 @@ module Orders
   class RemoveTimePromotionDiscountTest < InMemoryTestCase
     cover "Orders*"
 
-    def test_resets_time_promotion_discount_value
+    def test_removes_time_promotion_discount_value
       customer_id = SecureRandom.uuid
       product_id = SecureRandom.uuid
       order_id = SecureRandom.uuid
@@ -20,7 +20,7 @@ def test_resets_time_promotion_discount_value
       end
     end
 
-    def test_does_not_reset_time_promotion_when_general_discount_reset
+    def test_does_not_removes_time_promotion_when_removing_general_discount
       customer_id = SecureRandom.uuid
       product_id = SecureRandom.uuid
       order_id = SecureRandom.uuid