# frozen_string_literal: true

require 'spec_helper'

RSpec.describe Admin::BulkLineItemsController do
  describe '#index' do
    render_views

    let(:line_item_attributes) {
      %i[id quantity max_quantity price supplier final_weight_volume units_product units_variant
         order]
    }
    let!(:dist1) { FactoryBot.create(:distributor_enterprise) }
    let!(:order1) {
      FactoryBot.create(:order, state: 'complete', completed_at: 1.day.ago, distributor: dist1,
                                billing_address: FactoryBot.create(:address) )
    }
    let!(:order2) {
      FactoryBot.create(:order, state: 'complete', completed_at: Time.zone.now, distributor: dist1,
                                billing_address: FactoryBot.create(:address) )
    }
    let!(:order3) {
      FactoryBot.create(:order, state: 'complete', completed_at: Time.zone.now, distributor: dist1,
                                billing_address: FactoryBot.create(:address) )
    }
    let!(:line_item1) { FactoryBot.create(:line_item_with_shipment, order: order1) }
    let!(:line_item2) { FactoryBot.create(:line_item_with_shipment, order: order2) }
    let!(:line_item3) { FactoryBot.create(:line_item_with_shipment, order: order2) }
    let!(:line_item4) { FactoryBot.create(:line_item_with_shipment, order: order3) }

    context "as a normal user" do
      before { allow(controller).to receive_messages spree_current_user: create(:user) }

      it "should deny me access to the index action" do
        get :index, format: :json
        expect(response).to redirect_to unauthorized_path
      end
    end

    context "as an administrator" do
      before do
        allow(controller).to receive_messages spree_current_user: create(:admin_user)
      end

      context "when no ransack params are passed in" do
        before do
          get :index, format: :json
        end

        it "retrieves a list of line_items with appropriate attributes, " \
           "including line items with appropriate attributes" do
          keys = json_response['line_items'].first.keys.map(&:to_sym)
          expect(line_item_attributes.all?{ |attr| keys.include? attr }).to eq(true)
        end

        it "sorts line_items in ascending id line_item" do
          expect(line_item_ids[0]).to be < line_item_ids[1]
          expect(line_item_ids[1]).to be < line_item_ids[2]
        end

        it "formats final_weight_volume as a float" do
          expect(json_response[:line_items]).to all(include(final_weight_volume: a_kind_of(Float)))
        end

        it "returns distributor object with id key" do
          expect(json_response[:line_items].pluck(:supplier)).to all(include(:id))
        end
      end

      context "when ransack params are passed in for line items" do
        before do
          get :index, as: :json, params: { q: { order_id_eq: order2.id } }
        end

        it "retrives a list of line items which match the criteria" do
          expect(line_item_ids).to match_array [line_item2.id, line_item3.id]
        end
      end

      context "when ransack params are passed in for orders" do
        before do
          get :index, as: :json, params: { q: { order: { completed_at_gt: 2.hours.ago } } }
        end

        it "retrives a list of line items whose orders match the criteria" do
          expect(line_item_ids).to eq [line_item2.id, line_item3.id, line_item4.id]
        end
      end
    end

    context "as an enterprise user" do
      let(:supplier) { create(:supplier_enterprise) }
      let(:distributor1) { create(:distributor_enterprise) }
      let(:distributor2) { create(:distributor_enterprise) }
      let(:coordinator) { create(:distributor_enterprise) }
      let(:order_cycle) { create(:simple_order_cycle, coordinator:) }
      let!(:order1) {
        create(:order, order_cycle:, state: 'complete',
                       completed_at: Time.zone.now, distributor: distributor1,
                       billing_address: create(:address) )
      }
      let!(:line_item1) {
        create(:line_item_with_shipment, order: order1,
                                         variant: create(:variant, supplier:))
      }
      let!(:line_item2) {
        create(:line_item_with_shipment, order: order1,
                                         variant: create(:variant, supplier:))
      }
      let!(:order2) {
        create(:order, order_cycle:, state: 'complete',
                       completed_at: Time.zone.now, distributor: distributor2,
                       billing_address: create(:address) )
      }
      let!(:line_item3) {
        create(:line_item_with_shipment, order: order2,
                                         variant: create(:variant, supplier:))
      }

      context "producer enterprise" do
        before do
          allow(controller).to receive_messages spree_current_user: supplier.owner
        end

        context "with no distributor allows to edit orders" do
          before { get :index, as: :json }

          it "does not display line items for which my enterprise is a supplier" do
            expect(response).to redirect_to unauthorized_path
          end
        end

        context "with distributor allows to edit orders" do
          before do
            distributor1.update_columns(enable_producers_to_edit_orders: true)
            get :index, as: :json
          end

          it "retrieves a list of line_items from the supplier" do
            keys = json_response['line_items'].first.keys.map(&:to_sym)
            expect(line_item_attributes.all?{ |attr| keys.include? attr }).to eq(true)
          end
        end
      end

      context "coordinator enterprise" do
        before do
          allow(controller).to receive_messages spree_current_user: coordinator.owner
          get :index, as: :json
        end

        it "retrieves a list of line_items" do
          keys = json_response['line_items'].first.keys.map(&:to_sym)
          expect(line_item_attributes.all?{ |attr| keys.include? attr }).to eq(true)
        end
      end

      context "hub enterprise" do
        before do
          allow(controller).to receive_messages spree_current_user: distributor1.owner
          get :index, as: :json
        end

        it "retrieves a list of line_items" do
          keys = json_response['line_items'].first.keys.map(&:to_sym)
          expect(line_item_attributes.all?{ |attr| keys.include? attr }).to eq(true)
        end
      end
    end

    context "paginating" do
      before do
        allow(controller).to receive_messages spree_current_user: create(:admin_user)
      end

      context "with pagination args" do
        it "returns paginated results" do
          get :index, params: { page: 1, per_page: 2 }, as: :json

          expect(line_item_ids).to eq [line_item1.id, line_item2.id]
          expect(json_response['pagination']).to eq(
            { 'page' => 1, 'per_page' => 2, 'pages' => 2, 'results' => 4 }
          )
        end

        it "returns paginated results for a second page" do
          get :index, params: { page: 2, per_page: 2 }, as: :json

          expect(line_item_ids).to eq [line_item3.id, line_item4.id]
          expect(json_response['pagination']).to eq(
            { 'page' => 2, 'per_page' => 2, 'pages' => 2, 'results' => 4 }
          )
        end
      end
    end
  end

  describe '#update' do
    let(:supplier) { create(:supplier_enterprise) }
    let(:distributor1) { create(:distributor_enterprise) }
    let(:coordinator) { create(:distributor_enterprise) }
    let(:order_cycle) { create(:simple_order_cycle, coordinator:) }
    let!(:order1) {
      create(:order, order_cycle:, state: 'complete',
                     completed_at: Time.zone.now,
                     distributor: distributor1,
                     billing_address: create(:address) )
    }
    let!(:line_item1) {
      line_item1 = create(:line_item_with_shipment,
                          order: order1,
                          variant: create(:variant, supplier:))
      # make sure shipment is available through db reloads of this line_item
      line_item1.tap(&:save!)
    }
    let(:line_item_params) { { quantity: 3, final_weight_volume: 3000, price: 3.00 } }
    let(:params) { { id: line_item1.id, order_id: order1.number, line_item: line_item_params } }

    context "as an enterprise user" do
      context "producer enterprise" do
        before do
          allow(controller).to receive_messages spree_current_user: supplier.owner
          spree_put :update, params
        end

        it "does not allow access" do
          expect(response).to redirect_to unauthorized_path
        end
      end

      context "coordinator enterprise" do
        render_views

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

        # Used in admin/orders/bulk_management
        context 'when the request is JSON (angular)' do
          before { params[:format] = :json }

          it "updates the line item" do
            spree_put :update, params
            line_item1.reload
            expect(line_item1.quantity).to eq 3
            expect(line_item1.final_weight_volume).to eq 3000
            expect(line_item1.price).to eq 3.00
          end

          it "returns an empty JSON response" do
            spree_put :update, params
            expect(response.body).to eq ""
          end

          it 'returns a 204 response' do
            spree_put :update, params
            expect(response).to have_http_status :no_content
          end

          it 'applies enterprise fees locking the order with an exclusive row lock' do
            allow(Spree::LineItem)
              .to receive(:find).with(line_item1.id.to_s).and_return(line_item1)

            expect(line_item1.order).to receive(:with_lock).and_call_original
            expect(line_item1.order).to receive(:update_line_item_fees!)
            expect(line_item1.order).to receive(:update_order_fees!)
            expect(line_item1.order).to receive(:update_order!).once

            spree_put :update, params
          end

          context 'when the line item params are not correct' do
            let(:line_item_params) { { price: 'hola' } }
            let(:errors) { { 'price' => ['is not a number'] } }

            it 'returns a JSON with the errors' do
              spree_put :update, params
              expect(response.parsed_body['errors']).to eq(errors)
            end

            it 'returns a 412 response' do
              spree_put :update, params
              expect(response).to have_http_status :precondition_failed
            end
          end
        end
      end

      context "hub enterprise" do
        before do
          allow(controller).to receive_messages spree_current_user: distributor1.owner
          put :update, params:, xhr: true
        end

        it "updates the line item" do
          line_item1.reload
          expect(line_item1.quantity).to eq 3
          expect(line_item1.final_weight_volume).to eq 3000
          expect(line_item1.price).to eq 3.00
        end
      end
    end
  end

  describe '#destroy' do
    render_views

    let(:supplier) { create(:supplier_enterprise) }
    let(:distributor1) { create(:distributor_enterprise) }
    let(:coordinator) { create(:distributor_enterprise) }
    let(:order_cycle) { create(:simple_order_cycle, coordinator:) }
    let!(:order1) {
      create(:order, order_cycle:, state: 'complete',
                     completed_at: Time.zone.now, distributor: distributor1,
                     billing_address: create(:address) )
    }
    let!(:line_item1) {
      create(:line_item_with_shipment, order: order1,
                                       variant: create(:variant, supplier:))
    }
    let(:params) { { id: line_item1.id, order_id: order1.number } }

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

    # Used in admin/orders/bulk_management
    context 'when the request is JSON (angular)' do
      before { params[:format] = :json }

      it 'destroys the line item' do
        expect {
          spree_delete :destroy, params
        }.to change { Spree::LineItem.where(id: line_item1).count }.from(1).to(0)
      end

      it 'returns an empty JSON response' do
        spree_delete :destroy, params
        expect(response.body).to eq ""
      end

      it 'returns a 204 response' do
        spree_delete :destroy, params
        expect(response).to have_http_status :no_content
      end
    end
  end

  context "updating the order's taxes, fees, and states" do
    let(:distributor) { create(:distributor_enterprise_with_tax) }
    let!(:order_cycle) {
      create(:order_cycle, distributors: [distributor],
                           coordinator_fees: [line_item_fee1, line_item_fee2, order_fee])
    }
    let(:outgoing_exchange) { order_cycle.exchanges.outgoing.first }

    let!(:order) {
      create(:order_with_line_items, line_items_count: 2, distributor:,
                                     order_cycle:)
    }
    let(:line_item1) { order.line_items.first }
    let(:line_item2) { order.line_items.last }

    let!(:zone) { create(:zone_with_member) }
    let(:tax_included) { true }
    let(:tax_rate5) { create(:tax_rate, amount: 0.05, zone:, included_in_price: tax_included) }
    let(:tax_rate10) {
      create(:tax_rate, amount: 0.10, zone:, included_in_price: tax_included)
    }
    let(:tax_rate15) {
      create(:tax_rate, amount: 0.15, zone:, included_in_price: tax_included)
    }
    let(:tax_cat5) { create(:tax_category, tax_rates: [tax_rate5]) }
    let(:tax_cat10) { create(:tax_category, tax_rates: [tax_rate10]) }
    let(:tax_cat15) { create(:tax_category, tax_rates: [tax_rate15]) }

    let!(:shipping_method) {
      create(:shipping_method_with, :shipping_fee, tax_category: tax_cat5, name: "Shiperoo",
                                                   distributors: [distributor])
    }
    let!(:payment_method) { create(:payment_method, :per_item, distributors: [distributor]) }

    let(:line_item_fee1) {
      create(:enterprise_fee, :per_item, amount: 1, inherits_tax_category: false,
                                         tax_category: tax_cat15)
    }
    let(:line_item_fee2) {
      create(:enterprise_fee, :per_item, amount: 2, inherits_tax_category: true)
    }
    let(:order_fee) { create(:enterprise_fee, :flat_rate, amount: 3, tax_category: tax_cat15 ) }

    before do
      outgoing_exchange.variants << [line_item1.variant, line_item2.variant]
      allow(order).to receive(:tax_zone) { zone }
      line_item1.variant.update_columns(tax_category_id: tax_cat5.id)
      line_item2.variant.update_columns(tax_category_id: tax_cat10.id)

      order.shipments.map(&:refresh_rates)
      order.select_shipping_method(shipping_method.id)
      Orders::WorkflowService.new(order).advance_to_payment
      order.finalize!
      order.recreate_all_fees!
      order.create_tax_charge!
      order.update_order!
      order.payments << create(:payment, payment_method:, amount: order.total,
                                         state: "completed")

      allow(controller).to receive(:spree_current_user) { distributor.owner }
      allow(Spree::LineItem).to receive(:find) { line_item1 }
      allow(line_item1).to receive(:order) { order }
    end

    describe "updating a line item" do
      let(:line_item_params) { { quantity: 3 } }
      let(:params) { { id: line_item1.id, order_id: order.number, line_item: line_item_params } }

      it "correctly updates order totals and states" do
        expect(order.total).to eq 35.0
        expect(order.shipment_adjustments.shipping.sum(:amount)).to eq 6.0
        expect(order.shipment_adjustments.tax.sum(:amount)).to eq 0.29
        expect(order.item_total).to eq 20.0
        expect(order.adjustment_total).to eq 15.0
        expect(order.included_tax_total).to eq 1.22
        expect(order.payment_state).to eq "paid"

        expect(order).to receive(:update_order!).at_least(:once).and_call_original
        expect(order).to receive(:create_tax_charge!).at_least(:once).and_call_original

        spree_put :update, params
        order.reload

        expect(order.total).to eq 67.0
        expect(order.shipment_adjustments.sum(:amount)).to eq 12.57
        expect(order.item_total).to eq 40.0
        expect(order.adjustment_total).to eq 27.0
        expect(order.included_tax_total).to eq 3.38
        expect(order.payment_state).to eq "balance_due"
      end
    end

    describe "deleting a line item" do
      let(:params) { { id: line_item1.id, order_id: order.number } }

      it "correctly updates order totals and states" do
        expect(order.total).to eq 35.0
        expect(order.shipment_adjustments.shipping.sum(:amount)).to eq 6.0
        expect(order.shipment_adjustments.tax.sum(:amount)).to eq 0.29
        expect(order.item_total).to eq 20.0
        expect(order.adjustment_total).to eq 15.0
        expect(order.included_tax_total).to eq 1.22
        expect(order.payment_state).to eq "paid"

        spree_delete :destroy, params
        order.reload

        expect(order.total).to eq 19.0
        expect(order.shipment_adjustments.shipping.sum(:amount)).to eq 3.0
        expect(order.shipment_adjustments.tax.sum(:amount)).to eq 0.14
        expect(order.item_total).to eq 10.0
        expect(order.adjustment_total).to eq 9.0
        expect(order.included_tax_total).to eq 0.84
        expect(order.payment_state).to eq "credit_owed"
      end
    end
  end

  private

  def line_item_ids
    json_response['line_items'].pluck(:id)
  end
end
