# frozen_string_literal: true

require 'system_helper'

RSpec.describe "Order Management" do
  include AuthenticationHelper

  describe "viewing a completed order" do
    let!(:distributor) { create(:distributor_enterprise) }
    let!(:customer) { create(:customer, user:, enterprise: distributor) }
    let!(:order_cycle) { create(:simple_order_cycle, distributors: [distributor]) }

    let!(:bill_address) { create(:address) }
    let!(:ship_address) { create(:address) }
    let!(:shipping_method) { create(:free_shipping_method, distributors: [distributor]) }

    let!(:order) do
      create(:order_with_credit_payment,
             customer:,
             user:,
             distributor:,
             order_cycle:)
    end

    before do
      # For some reason, both bill_address and ship_address are not set
      # automatically.
      order.update!(
        bill_address:,
        ship_address:
      )
    end

    context "when checking out as an anonymous guest" do
      let!(:customer) { nil }
      let!(:order) do
        create(:order_with_credit_payment,
               user: nil,
               email: "guest@user.com",
               distributor:,
               order_cycle:)
      end

      it "allows the user to see the details" do
        # Cannot load the page without token
        visit order_path(order)
        expect(page).not_to be_confirmed_order_page

        # Can load the page with token
        visit order_path(order, order_token: order.token)
        expect(page).to be_confirmed_order_page

        # Can load the page even without the token, after loading the page with
        # token.
        visit order_path(order)
        expect(page).to be_confirmed_order_page
      end

      it "allows the user to see a link to distributor website when distributor has one" do
        distributor.update!(website: "www.example.com")
        visit order_path(order, order_token: order.token)
        expect(page).to have_link "Back To Website", href: "https://www.example.com"
      end

      it "doesn't show any link if the distributor doesn't have a website" do
        visit order_path(order, order_token: order.token)
        expect(page).not_to have_link "Back To Website"
      end
    end

    context "when logged in as the customer" do
      let(:user) { create(:user) }

      before do
        login_as user
      end

      it "allows the user to see order details" do
        visit order_path(order)
        expect(page).to be_confirmed_order_page
      end
    end

    context "when not logged in" do
      let(:user) { create(:user) }

      it "allows the user to see order details after login" do
        # Cannot load the page without signing in
        visit order_path(order)
        expect(page).not_to be_confirmed_order_page

        # Can load the page after signing in
        fill_in_and_submit_login_form user
        expect(page).to be_confirmed_order_page
      end
    end
  end

  describe "editing a completed order" do
    let(:address) { create(:address) }
    let(:user) { create(:user, bill_address: address, ship_address: address) }
    let(:distributor) {
      create(:distributor_enterprise, with_payment_and_shipping: true, charges_sales_tax: true)
    }
    let(:order_cycle) { create(:order_cycle) }
    let(:shipping_method) { distributor.shipping_methods.first }
    let(:order) do
      create(
        :completed_order_with_totals,
        order_cycle:,
        distributor:,
        user:,
        bill_address: address,
        ship_address: address
      )
    end
    let!(:item1) { order.reload.line_items.first }
    let!(:item2) { create(:line_item, order:) }
    let!(:item3) { create(:line_item, order:) }

    before do
      order.shipment.shipping_method.calculator.update(preferred_amount: 5.0)
      order.shipments.map(&:refresh_rates)
      order.save
      order.reload

      login_as user
    end

    it 'shows the name of the shipping method' do
      visit order_path(order)
      expect(find('#order')).to have_content(shipping_method.name)
    end

    context "when the distributor doesn't allow changes to be made to orders" do
      before do
        order.distributor.update(allow_order_changes: false)
      end

      it "doesn't show form elements for editing the order" do
        visit order_path(order)
        expect(find("tr.variant-#{item1.variant.id}")).to have_content item1.product.name
        expect(find("tr.variant-#{item2.variant.id}")).to have_content item2.product.name
        expect(find("tr.variant-#{item3.variant.id}")).to have_content item3.product.name
        expect(page).not_to have_button 'Save Changes'
      end
    end

    context "when the distributor allows changes to be made to orders" do
      before do
        order.distributor.update(allow_order_changes: true)
      end

      it "allows quantity to be changed, items to be removed and the order to be cancelled" do
        visit order_path(order)

        expect(page).to have_button 'Order Saved', disabled: true
        expect(page).not_to have_button 'Save Changes'

        # Changing the quantity of an item
        within "tr.variant-#{item1.variant.id}" do
          expect(page).to have_content item1.product.name
          expect(page).to have_field 'order_line_items_attributes_0_quantity'
          # The original item quantity is 1, there are 4 more items available in stock
          # By changing quantity to 5 we validate the case where the original stock in the order
          #   must be taken into account to fullfil the order (no insufficient stock error)
          fill_in 'order_line_items_attributes_0_quantity', with: 5
        end

        expect(page).to have_button 'Save Changes'

        expect(find("tr.variant-#{item2.variant.id}")).to have_content item2.product.name
        expect(find("tr.variant-#{item2.variant.id}")).to have_content("$10,000.00 / kg")
        expect(find("tr.variant-#{item3.variant.id}")).to have_content item3.product.name
        expect(find("tr.variant-#{item3.variant.id}")).to have_content("$10,000.00 / kg")
        expect(find("tr.order-adjustment")).to have_content "Shipping"
        expect(find("tr.order-adjustment")).to have_content "5.00"

        click_button 'Save Changes'

        expect(find(".order-total.grand-total")).to have_content "115.00"
        expect(item1.reload.quantity).to eq 5

        # Deleting an item
        within "tr.variant-#{item2.variant.id}" do
          click_link "delete_line_item_#{item2.id}"
        end

        expect(find(".order-total.grand-total")).to have_content "105.00"
        expect(Spree::LineItem.find_by(id: item2.id)).to be nil

        # Cancelling the order
        accept_alert do
          click_link('Cancel Order')
        end
        expect(page).to have_content 'Cancelled'
        expect(order.reload).to be_canceled
      end
    end
  end

  def be_confirmed_order_page
    have_content "Order ##{order.number} Confirmed"
  end
end
