2 files changed, 81 insertions, 0 deletions
diff --git a/app/services/payment_services/cart_to_order_service.rb b/app/services/payment_services/cart_to_order_service.rb
new file mode 100644
index 0000000..3985f90
--- /dev/null
+++ b/app/services/payment_services/cart_to_order_service.rb
@@ -0,0 +1,33 @@
+# frozen_string_literal: true
+
+module PaymentServices
+  # CartToOrderService
+  class CartToOrderService
+    attr_reader :error_messages
+
+    def initialize(user_account)
+      @user_account = user_account
+      @cart = @user_account.cart
+    end
+
+    def call
+      @error_messages = { errors: 'Cart is empty' } and return if @cart.product_carts.empty?
+
+      order = Order.create(user_account_id: @user_account.id, public_id: generate_public_id)
+
+      @cart.product_carts.pluck(:product_id, :quantity).each do |data|
+        ProductOrder.create(order_id: order.id, product_id: data[0], quantity: data[1])
+      end
+
+      order
+    end
+
+    private
+
+    def generate_public_id
+      public_id = SecureRandom.hex(12)
+      public_id = SecureRandom.hex(12) while Order.exists?(public_id:)
+      public_id
+    end
+  end
+end
diff --git a/app/services/payment_services/payment_service.rb b/app/services/payment_services/payment_service.rb
new file mode 100644
index 0000000..82267d5
--- /dev/null
+++ b/app/services/payment_services/payment_service.rb
@@ -0,0 +1,48 @@
+# frozen_string_literal: true
+
+module PaymentServices
+  # PaymentService
+  class PaymentService
+    attr_reader :error_messages
+
+    def initialize(card_id, user_account)
+      @user_account = user_account
+      @card_id = card_id
+      @service = CartToOrderService.new(@user_account)
+      @order = @service.call
+    end
+
+    def call
+      @error_messages = @service.error_messages and return if @order.nil?
+
+      @payment = Payment.new(order_id: @order.id, card_id: @card_id, total:)
+
+      unless @payment.save
+        @error_messages = @payment.errors.as_json
+        @order.destroy
+        return
+      end
+
+      @order.update(payment_id: @payment.id)
+      @user_account.cart.product_carts.destroy_all
+      @order
+    end
+
+    private
+
+    def total
+      total = 0
+
+      @order.product_orders.joins(:product).select(
+        'product_orders.*, products.bulk_price AS bulk_price, products.unitary_price AS unitary_price'
+      ).each do |product_order|
+        total += if product_order.quantity < 5
+                   product_order.unitary_price * product_order.quantity
+                 else
+                   product_order.bulk_price * product_order.quantity
+                 end
+      end
+      total
+    end
+  end
+end