# frozen_string_literal: true

RSpec.describe Admin::OrderCyclesController do
  let!(:distributor_owner) { create(:user) }
  let(:datetime_confirmation_attrs) {
    { confirm_datetime_change: nil,
      error_class: Admin::OrderCyclesController::DateTimeChangeError }
  }

  before do
    allow(controller).to receive_messages spree_current_user: distributor_owner
  end

  describe "#index" do
    describe "when the user manages a coordinator" do
      let!(:coordinator) { create(:distributor_enterprise, owner: distributor_owner) }
      let!(:oc1) {
        create(:simple_order_cycle, orders_open_at: 70.days.ago, orders_close_at: 60.days.ago )
      }
      let!(:oc2) {
        create(:simple_order_cycle, orders_open_at: 70.days.ago, orders_close_at: 40.days.ago )
      }
      let!(:oc3) {
        create(:simple_order_cycle, orders_open_at: 70.days.ago, orders_close_at: 20.days.ago )
      }
      let!(:oc4) {
        create(:simple_order_cycle, orders_open_at: 70.days.ago, orders_close_at: nil )
      }

      context "html" do
        it "doesn't load any data" do
          get :index, as: :html
          expect(assigns(:collection)).to be_empty
        end
      end

      context "json" do
        context "where ransack conditions are specified" do
          it "loads order cycles closed within past month, and orders w/o a close_at date" do
            get :index, as: :json
            expect(assigns(:collection)).not_to include oc1, oc2
            expect(assigns(:collection)).to include oc3, oc4
          end
        end

        context "where q[orders_close_at_gt] is set" do
          let(:q) { { orders_close_at_gt: 45.days.ago } }

          it "loads order cycles closed after specified date, and orders w/o a close_at date" do
            get :index, as: :json, params: { q: }
            expect(assigns(:collection)).not_to include oc1
            expect(assigns(:collection)).to include oc2, oc3, oc4
          end

          context "and other conditions are specified" do
            before { q.merge!(id_not_in: [oc2.id, oc4.id]) }

            it "loads order cycles that meet all conditions" do
              get :index, format: :json, params: { q: }
              expect(assigns(:collection)).not_to include oc1, oc2, oc4
              expect(assigns(:collection)).to include oc3
            end
          end
        end
      end
    end
  end

  describe "new" do
    describe "when the user manages a single distributor enterprise suitable for coordinator" do
      let!(:distributor) { create(:distributor_enterprise, owner: distributor_owner) }

      it "renders the new template" do
        get :new
        expect(response).to render_template :new
      end
    end

    describe "when a user manages multiple enterprises suitable for coordinator" do
      let!(:distributor1) { create(:distributor_enterprise, owner: distributor_owner) }
      let!(:distributor2) { create(:distributor_enterprise, owner: distributor_owner) }
      let!(:distributor3) { create(:distributor_enterprise) }

      it "renders the set_coordinator template" do
        get :new
        expect(response).to render_template :set_coordinator
      end

      describe "and a coordinator_id is submitted as part of the request" do
        describe "when the user manages the enterprise" do
          it "renders the new template" do
            get :new, params: { coordinator_id: distributor1.id }
            expect(response).to render_template :new
          end
        end

        describe "when the user does not manage the enterprise" do
          it "renders the set_coordinator template and sets a flash error" do
            get :new, params: { coordinator_id: distributor3.id }
            expect(response).to render_template :set_coordinator
            expect(flash[:error])
              .to eq "You don't have permission to create an order cycle " \
                     "coordinated by that enterprise"
          end
        end
      end
    end
  end

  describe "show" do
    context 'a distributor manages an order cycle' do
      let(:distributor) { create(:distributor_enterprise, owner: distributor_owner) }
      let(:oc) { create(:simple_order_cycle, coordinator: distributor) }

      context "distributor navigates to order cycle show page" do
        it 'redirects to edit page' do
          get :show, params: { id: oc.id }
          expect(response).to redirect_to edit_admin_order_cycle_path(oc.id)
        end
      end
    end

    describe "queries" do
      context "as manager, when order cycle has multiple exchanges" do
        let!(:distributor) { create(:distributor_enterprise) }
        let(:order_cycle) { create(:simple_order_cycle, coordinator: distributor) }
        before do
          order_cycle.exchanges.create! sender: distributor, receiver: distributor,
                                        incoming: true, receival_instructions: 'A', tag_list: "A"
          order_cycle.exchanges.create! sender: distributor, receiver: distributor,
                                        incoming: false, pickup_instructions: 'B', tag_list: "B"
          controller_login_as_enterprise_user([distributor])
        end

        it do
          expect {
            get :show, params: { id: order_cycle.id }, as: :json
          }.to query_database(
            {
              select: {
                enterprise_fees: 3,
                enterprise_groups: 1,
                enterprises: 19,
                exchanges: 7,
                order_cycles: 6,
                proxy_orders: 1,
                schedules: 1,
                spree_variants: 8,
                tags: 1
              },
              update: { spree_users: 1 }
            }
          )
        end
      end
    end
  end

  describe "create" do
    let(:shop) { create(:distributor_enterprise) }

    context "as a manager of a shop" do
      let(:form_mock) { instance_double(OrderCycles::FormService) }
      let(:params) { { as: :json, order_cycle: {} } }

      before do
        controller_login_as_enterprise_user([shop])
        allow(OrderCycles::FormService).to receive(:new) { form_mock }
      end

      context "when creation is successful" do
        before { allow(form_mock).to receive(:save) { true } }

        # mock build_resource so that we can control the edit_path
        Admin::OrderCyclesController.class_eval do
          def build_resource
            order_cycle = OrderCycle.new
            order_cycle.id = 1
            order_cycle
          end
        end

        it "returns success: true and a valid edit path" do
          spree_post :create, params
          json_response = response.parsed_body
          expect(json_response['success']).to be true
          expect(json_response['edit_path']).to eq "/admin/order_cycles/1/incoming"
        end
      end

      context "when an error occurs" do
        before { allow(form_mock).to receive(:save) { false } }

        it "returns an errors hash" do
          spree_post :create, params
          json_response = response.parsed_body
          expect(json_response['errors']).to be
        end
      end
    end
  end

  describe "update" do
    let(:order_cycle) { create(:simple_order_cycle) }
    let(:coordinator) { order_cycle.coordinator }
    let(:form_mock) { instance_double(OrderCycles::FormService) }

    before do
      allow(OrderCycles::FormService).to receive(:new) { form_mock }
    end

    context "as a manager of the coordinator" do
      before { controller_login_as_enterprise_user([coordinator]) }
      let(:params) { { format: :json, id: order_cycle.id, order_cycle: {} } }

      context "when order cycle has subscriptions" do
        let(:coordinator) { order_cycle.coordinator }
        let(:producer) { create(:supplier_enterprise) }
        let!(:schedule) { create(:schedule, order_cycles: [order_cycle]) }
        let(:v) { create(:variant) }
        let!(:incoming_exchange) {
          create(:exchange, order_cycle:, sender: producer, receiver: coordinator,
                            incoming: true, variants: [v])
        }
        let!(:outgoing_exchange) {
          create(:exchange, order_cycle:, sender: coordinator, receiver: coordinator,
                            incoming: false, variants: [v])
        }
        let!(:subscription) { create(:subscription, shop: coordinator, schedule:) }
        let!(:subscription_line_item) {
          create(:subscription_line_item, subscription:, variant: v)
        }

        before do
          allow(form_mock).to receive(:save) { true }
          v.destroy
        end

        it "can update order cycle even if the variant has been deleted" do
          spree_put :update, { format: :json, id: order_cycle.id, order_cycle: {} }
          expect(response).to have_http_status :ok
        end
      end

      context "when updating succeeds" do
        before { allow(form_mock).to receive(:save) { true } }

        context "when the page is reloading" do
          before { params[:reloading] = '1' }

          it "sets flash message" do
            spree_put :update, params
            expect(flash[:success]).to eq('Your order cycle has been updated.')
          end
        end

        context "when the page is not reloading" do
          it "does not set flash message" do
            spree_put :update, params
            expect(flash[:success]).to be nil
          end
        end
      end

      context "when a validation error occurs" do
        before { allow(form_mock).to receive(:save) { false } }

        it "returns an error message" do
          spree_put :update, params

          json_response = response.parsed_body
          expect(json_response['errors']).to be
        end
      end

      it "can update preference product_selection_from_coordinator_inventory_only" do
        expect(OrderCycles::FormService).to receive(:new).
          with(order_cycle,
               { "preferred_product_selection_from_coordinator_inventory_only" => true,
                 **datetime_confirmation_attrs },
               anything) { form_mock }
        allow(form_mock).to receive(:save) { true }

        spree_put :update, params.
          merge(order_cycle: {
                  preferred_product_selection_from_coordinator_inventory_only: true
                })
      end

      it "can update preference automatic_notifications" do
        expect(OrderCycles::FormService).to receive(:new).
          with(order_cycle,
               { "automatic_notifications" => true, **datetime_confirmation_attrs },
               anything) { form_mock }
        allow(form_mock).to receive(:save) { true }

        spree_put :update, params.
          merge(order_cycle: { automatic_notifications: true })
      end
    end
  end

  describe "limiting update scope" do
    let(:order_cycle) { create(:simple_order_cycle) }
    let(:producer) { create(:supplier_enterprise) }
    let(:coordinator) { order_cycle.coordinator }
    let(:hub) { create(:distributor_enterprise) }
    let(:v) { create(:variant) }
    let!(:incoming_exchange) {
      create(:exchange, order_cycle:, sender: producer, receiver: coordinator,
                        incoming: true, variants: [v])
    }
    let!(:outgoing_exchange) {
      create(:exchange, order_cycle:, sender: coordinator, receiver: hub,
                        incoming: false, variants: [v])
    }

    let(:allowed) { { incoming_exchanges: [], outgoing_exchanges: [] } }
    let(:restricted) {
      { name: 'some name', orders_open_at: 1.day.from_now.to_s, orders_close_at: 1.day.ago.to_s }
    }
    let(:params) {
      {
        format: :json, id: order_cycle.id, order_cycle: allowed.merge(restricted)
      }
    }
    let(:form_mock) {
      instance_double(OrderCycles::FormService, save: true)
    }

    before { allow(controller).to receive(:spree_current_user) { user } }

    context "as a manager of the coordinator" do
      let(:user) { coordinator.owner }
      let(:expected) {
        [order_cycle, allowed.merge(restricted).merge(datetime_confirmation_attrs), user]
      }

      it "allows me to update exchange information for exchanges, name and dates" do
        expect(OrderCycles::FormService).to receive(:new).with(*expected) { form_mock }
        spree_put :update, params
      end
    end

    context "as a producer supplying to an order cycle" do
      let(:user) { producer.owner }
      let(:expected) { [order_cycle, allowed.merge(datetime_confirmation_attrs), user] }

      it "allows me to update exchange information for exchanges, but not name or dates" do
        expect(OrderCycles::FormService).to receive(:new).with(*expected) { form_mock }
        spree_put :update, params
      end
    end
  end

  describe "bulk_update" do
    let(:oc) { create(:simple_order_cycle) }
    let!(:coordinator) { oc.coordinator }

    context "when I manage the coordinator of an order cycle" do
      let(:params) do
        { format: :json, order_cycle_set: { collection_attributes: { '0' => {
          id: oc.id,
          name: "Updated Order Cycle",
          orders_open_at: Date.current - 21.days,
          orders_close_at: Date.current + 21.days,
        } } } }
      end

      before { create(:enterprise_role, user: distributor_owner, enterprise: coordinator) }

      it "updates order cycle properties" do
        spree_put :bulk_update, params
        oc.reload
        expect(oc.name).to eq "Updated Order Cycle"
        expect(oc.orders_open_at.to_date).to eq Date.current - 21.days
        expect(oc.orders_close_at.to_date).to eq Date.current + 21.days
      end

      it "does nothing when no data is supplied" do
        expect do
          spree_put :bulk_update, format: :json
        end.to change { oc.orders_open_at }.by(0)
        json_response = response.parsed_body
        expect(json_response['errors'])
          .to eq 'Hm, something went wrong. No order cycle data found.'
      end

      context "when a validation error occurs" do
        let(:params) do
          { format: :json, order_cycle_set: { collection_attributes: { '0' => {
            id: oc.id,
            name: "Updated Order Cycle",
            orders_open_at: Date.current + 25.days,
            orders_close_at: Date.current + 21.days,
          } } } }
        end

        it "returns an error message" do
          spree_put :bulk_update, params
          json_response = response.parsed_body
          expect(json_response['errors']).to be_present
        end
      end
    end

    context "when I do not manage the coordinator of an order cycle" do
      # I need to manage a hub in order to access the bulk_update action
      let!(:another_distributor) { create(:distributor_enterprise, users: [distributor_owner]) }

      it "doesn't update order cycle properties" do
        spree_put :bulk_update,
                  format: :json,
                  order_cycle_set: { collection_attributes: { '0' => {
                    id: oc.id,
                    name: "Updated Order Cycle",
                    orders_open_at: Date.current - 21.days,
                    orders_close_at: Date.current + 21.days,
                  } } }

        oc.reload
        expect(oc.name).not_to eq "Updated Order Cycle"
        expect(oc.orders_open_at.to_date).not_to eq Date.current - 21.days
        expect(oc.orders_close_at.to_date).not_to eq Date.current + 21.days
      end
    end
  end

  describe "notifying producers" do
    let(:user) { create(:user) }
    let(:admin_user) { create(:admin_user) }
    let(:order_cycle) { create(:simple_order_cycle) }

    before do
      allow(controller).to receive_messages spree_current_user: admin_user
    end

    it "enqueues a job" do
      expect do
        spree_post :notify_producers, id: order_cycle.id
      end.to enqueue_job OrderCycleNotificationJob
    end

    it "redirects back to the order cycles path with a success message" do
      spree_post :notify_producers, id: order_cycle.id
      expect(response).to redirect_to admin_order_cycles_path
      expect(flash[:success]).to eq(
        'Emails to be sent to producers have been queued for sending.'
      )
    end
  end

  describe "destroy" do
    let(:distributor) { create(:distributor_enterprise, owner: distributor_owner) }
    let(:oc) { create(:simple_order_cycle, coordinator: distributor) }

    describe "when an order cycle is deleteable" do
      it "allows the order_cycle to be destroyed" do
        get :destroy, params: { id: oc.id }
        expect(OrderCycle.find_by(id: oc.id)).to be nil
      end
    end

    describe "when an order cycle becomes non-deletable due to the presence of an order" do
      let!(:order) { create(:order, order_cycle: oc) }

      it "displays an error message when we attempt to delete it" do
        get :destroy, params: { id: oc.id }
        expect(response).to redirect_to admin_order_cycles_path
        expect(flash[:error])
          .to eq 'That order cycle has been selected by a customer and cannot be deleted. ' \
                 'To prevent customers from accessing it, please close it instead.'
      end
    end

    describe "when an order cycle becomes non-deletable because it is linked to a schedule" do
      let!(:schedule) { create(:schedule, order_cycles: [oc]) }

      it "displays an error message when we attempt to delete it" do
        get :destroy, params: { id: oc.id }
        expect(response).to redirect_to admin_order_cycles_path
        expect(flash[:error])
          .to eq 'That order cycle is linked to a schedule and cannot be deleted. ' \
                 'Please unlink or delete the schedule first.'
      end
    end

    describe "when an order cycle has any coordinator_fees" do
      let(:enterprise_fee1) { create(:enterprise_fee) }

      before do
        oc.coordinator_fees << enterprise_fee1
      end

      it "actually delete the order cycle" do
        get :destroy, params: { id: oc.id }
        expect(OrderCycle.find_by(id: oc.id)).to be nil
        expect(response).to redirect_to admin_order_cycles_path
      end

      describe "when the order_cycle was previously cloned" do
        let(:cloned) { oc.clone! }

        it "actually delete the order cycle" do
          get :destroy, params: { id: cloned.id }

          expect(OrderCycle.find_by(id: cloned.id)).to be nil
          expect(OrderCycle.find_by(id: oc.id)).not_to be nil
          expect(EnterpriseFee.find_by(id: enterprise_fee1.id)).not_to be nil
          expect(response).to redirect_to admin_order_cycles_path
        end
      end
    end
  end
end