require "rails_helper"

RSpec.describe User, type: :model do
  describe "#new" do
    let(:user) { create(:user, old_user_id: "3") }
    let(:other_organisation) { create(:organisation) }

    it "belongs to an organisation" do
      expect(user.organisation).to be_a(Organisation)
    end

    describe "#owned_lettings_logs" do
      let!(:owned_lettings_log) do
        create(
          :lettings_log,
          :completed,
          managing_organisation: other_organisation,
          assigned_to: user,
        )
      end

      it "has owned lettings logs through their organisation" do
        expect(user.owned_lettings_logs.first).to eq(owned_lettings_log)
      end
    end

    describe "#managed_lettings_logs" do
      let!(:managed_lettings_log) do
        create(
          :lettings_log,
          assigned_to: user,
          owning_organisation: other_organisation,
        )
      end

      it "has managed lettings logs through their organisation" do
        expect(user.managed_lettings_logs.first).to eq(managed_lettings_log)
      end
    end

    describe "#lettings_logs" do
      let!(:managed_lettings_log) do
        create(
          :lettings_log,
          :completed,
          managing_organisation: other_organisation,
          assigned_to: user,
        )
      end
      let!(:owned_lettings_log) do
        create(
          :lettings_log,
          assigned_to: user,
          owning_organisation: other_organisation,
        )
      end

      it "has lettings logs through their organisation" do
        expect(user.lettings_logs.to_a).to match_array([owned_lettings_log, managed_lettings_log])
      end

      context "when the user's organisation has absorbed another" do
        let!(:absorbed_org) { create(:organisation, absorbing_organisation_id: user.organisation.id) }
        let!(:absorbed_org_managed_lettings_log) do
          create(
            :lettings_log,
            :completed,
            managing_organisation: absorbed_org,
          )
        end
        let!(:absorbed_org_owned_lettings_log) do
          create(
            :lettings_log,
            owning_organisation: absorbed_org,
          )
        end

        it "has lettings logs through both their organisation and absorbed organisation" do
          expect(user.reload.lettings_logs.to_a).to match_array([owned_lettings_log, managed_lettings_log, absorbed_org_owned_lettings_log, absorbed_org_managed_lettings_log])
        end
      end
    end

    it "has a role" do
      expect(user.role).to eq("data_provider")
      expect(user.data_provider?).to be true
      expect(user.data_coordinator?).to be false
    end

    it "is not a key contact by default" do
      expect(user.is_key_contact?).to be false
    end

    it "can be set to key contact" do
      expect { user.is_key_contact! }
        .to change { user.reload.is_key_contact? }.from(false).to(true)
    end

    it "is not a data protection officer by default" do
      expect(user.is_data_protection_officer?).to be false
    end

    it "can be set to data protection officer" do
      expect { user.is_data_protection_officer! }
        .to change { user.reload.is_data_protection_officer? }.from(false).to(true)
    end

    it "is active by default" do
      expect(user.active).to be true
    end

    it "does not require 2FA" do
      expect(user.need_two_factor_authentication?(nil)).to be false
    end

    it "can have one or more legacy users" do
      FactoryBot.create(:legacy_user, old_user_id: user.old_user_id, user:)
      expect(user.legacy_users.size).to eq(1)
    end

    it "is confirmable" do
      allow(DeviseNotifyMailer).to receive(:confirmation_instructions).and_return(OpenStruct.new(deliver: true))
      expect(DeviseNotifyMailer).to receive(:confirmation_instructions).once
      described_class.create!(
        name: "unconfirmed_user",
        email: "unconfirmed_user@example.com",
        password: "password123",
        organisation: other_organisation,
        role: "data_provider",
      )
    end

    it "does not send a confirmation email to inactive users" do
      expect(DeviseNotifyMailer).not_to receive(:confirmation_instructions)
      described_class.create!(
        name: "unconfirmed_user",
        email: "unconfirmed_user@example.com",
        password: "password123",
        organisation: other_organisation,
        role: "data_provider",
        active: false,
      )
    end

    context "when the user is a data provider" do
      it "cannot assign roles" do
        expect(user.assignable_roles).to eq({})
      end
    end

    context "when the user is a data coordinator" do
      let(:user) { create(:user, :data_coordinator) }

      it "can assign all roles except support" do
        expect(user.assignable_roles).to eq({
          data_provider: 1,
          data_coordinator: 2,
        })
      end

      context "and their organisation does not have managing agents" do
        before do
          user.organisation.update(holds_own_stock: false)
        end

        it "can filter lettings logs by user, year and status" do
          expect(user.logs_filters).to match_array(%w[years status needstypes assigned_to user bulk_upload_id user_text_search])
        end
      end

      context "and their organisation has managing agents" do
        before do
          create(:organisation_relationship, child_organisation: user.organisation)
        end

        it "can filter lettings logs by user, year, status, managing_organisation and owning_organisation" do
          expect(user.logs_filters).to match_array(%w[years status needstypes assigned_to user managing_organisation owning_organisation bulk_upload_id managing_organisation_text_search owning_organisation_text_search user_text_search])
        end
      end
    end

    context "when the user is a Customer Support person" do
      let(:user) { create(:user, :support) }
      let!(:other_orgs_log) { create(:lettings_log) }
      let!(:owned_lettings_log) do
        create(
          :lettings_log,
          :completed,
          managing_organisation: other_organisation,
          assigned_to: user,
        )
      end
      let!(:managed_lettings_log) do
        create(
          :lettings_log,
          assigned_to: user,
          owning_organisation: other_organisation,
        )
      end

      it "has access to logs from all organisations" do
        expect(user.lettings_logs.to_a).to match_array([owned_lettings_log, managed_lettings_log, other_orgs_log])
      end

      it "requires 2FA" do
        expect(user.need_two_factor_authentication?(nil)).to be true
      end

      it "can assign all roles" do
        expect(user.assignable_roles).to eq({
          data_provider: 1,
          data_coordinator: 2,
          support: 99,
        })
      end

      it "can filter lettings logs by user, year, status, managing_organisation and owning_organisation" do
        expect(user.logs_filters).to match_array(%w[years status needstypes assigned_to user owning_organisation managing_organisation bulk_upload_id managing_organisation_text_search owning_organisation_text_search user_text_search])
      end
    end

    context "when the user is in development environment" do
      let(:user) { create(:user, :support) }

      before do
        allow(Rails.env).to receive(:development?).and_return(true)
      end

      it "does not require 2FA" do
        expect(user.need_two_factor_authentication?(nil)).to be false
      end
    end

    context "when the user is in review environment" do
      let(:user) { create(:user, :support) }

      before do
        allow(Rails.env).to receive(:development?).and_return(false)
        allow(Rails.env).to receive(:review?).and_return(true)
      end

      it "does not require 2FA" do
        expect(user.need_two_factor_authentication?(nil)).to be false
      end
    end
  end

  describe "paper trail" do
    let(:user) { create(:user) }

    it "creates a record of changes to a log" do
      expect { user.update!(name: "new test name") }.to change(user.versions, :count).by(1)
    end

    it "allows lettings logs to be restored to a previous version" do
      user.update!(name: "new test name")
      expect(user.paper_trail.previous_version.name).to eq("Danny Rojas")
    end

    it "signing in does not create a new version" do
      expect {
        user.update!(
          last_sign_in_at: Time.zone.now,
          current_sign_in_at: Time.zone.now,
          current_sign_in_ip: "127.0.0.1",
          last_sign_in_ip: "127.0.0.1",
          failed_attempts: 3,
          unlock_token: "dummy",
          locked_at: Time.zone.now,
          reset_password_token: "dummy",
          reset_password_sent_at: Time.zone.now,
          remember_created_at: Time.zone.now,
          sign_in_count: 5,
          updated_at: Time.zone.now,
        )
      }.not_to change(user.versions, :count)
    end
  end

  describe "scopes" do
    let(:organisation_1) { create(:organisation, :without_dpc, name: "A") }
    let(:organisation_2) { create(:organisation, :without_dpc, name: "B") }
    let!(:user_1) { create(:user, name: "Joe Bloggs", email: "joe@example.com", organisation: organisation_1, role: "support", last_sign_in_at: Time.zone.now) }
    let!(:user_2) { create(:user, name: "Jenny Ford", email: "jenny@smith.com", organisation: organisation_1, role: "data_coordinator") }
    let!(:user_3) { create(:user, name: "Tom Smith", email: "tom@example.com", organisation: organisation_1, role: "data_provider") }
    let!(:user_4) { create(:user, name: "Greg Thomas", email: "greg@org2.com", organisation: organisation_2, role: "data_coordinator") }
    let!(:user_5) { create(:user, name: "Adam Thomas", email: "adam@org2.com", organisation: organisation_2, role: "data_coordinator", last_sign_in_at: Time.zone.now) }

    context "when searching by name" do
      it "returns case insensitive matching records" do
        expect(described_class.search_by_name("Joe").count).to eq(1)
        expect(described_class.search_by_name("joe").count).to eq(1)
      end
    end

    context "when searching by email" do
      it "returns case insensitive matching records" do
        expect(described_class.search_by_email("Example").count).to eq(2)
        expect(described_class.search_by_email("example").count).to eq(2)
      end
    end

    context "when searching by all searchable field" do
      it "returns case insensitive matching records" do
        expect(described_class.search_by("Smith").count).to eq(2)
        expect(described_class.search_by("smith").count).to eq(2)
      end
    end

    context "when using sorted by organisation and role scope" do
      it "returns all users sorted by organisation name, then by role, then alphabetically by name" do
        expect(described_class.sorted_by_organisation_and_role.to_a).to eq([user_1, user_2, user_3, user_5, user_4])
      end
    end

    context "when filtering by status" do
      before do
        user_2.update!(active: false)
        user_3.update!(active: false, last_sign_in_at: nil)
        user_4.update!(last_sign_in_at: nil)
      end

      context "when filtering by active status" do
        it "returns only active users" do
          expect(described_class.filter_by_status(%w[active]).count).to eq(2)
          expect(described_class.filter_by_status(%w[active])).to include(user_1)
          expect(described_class.filter_by_status(%w[active])).to include(user_5)
        end
      end

      context "when filtering by deactivated status" do
        it "returns only deactivated users" do
          expect(described_class.filter_by_status(%w[deactivated]).count).to eq(2)
          expect(described_class.filter_by_status(%w[deactivated])).to include(user_2)
          expect(described_class.filter_by_status(%w[deactivated])).to include(user_3)
        end
      end

      context "when filtering by unconfirmed status" do
        it "returns only unconfirmed users" do
          expect(described_class.filter_by_status(%w[unconfirmed]).count).to eq(1)
          expect(described_class.filter_by_status(%w[unconfirmed])).to include(user_4)
        end
      end

      context "when filtering by multiple statuses" do
        it "returns relevant users" do
          expect(described_class.filter_by_status(%w[active unconfirmed]).count).to eq(3)
          expect(described_class.filter_by_status(%w[active])).to include(user_1)
          expect(described_class.filter_by_status(%w[active])).to include(user_5)
          expect(described_class.filter_by_status(%w[unconfirmed])).to include(user_4)
        end
      end
    end
  end

  describe "validate" do
    context "when a user does not have values for required fields" do
      let(:user) { described_class.new }

      before do
        user.validate
      end

      it "validates name, email and organisation presence in the correct order" do
        expect(user.errors.map(&:attribute).uniq).to eq(%i[name email password organisation_id])
      end
    end

    context "when a too short password is entered" do
      let(:password) { "123" }
      let(:error_message) { "Validation failed: Password #{I18n.t('activerecord.errors.models.user.attributes.password.too_short', count: 8)}" }

      it "validates password length" do
        expect { create(:user, password:) }
          .to raise_error(ActiveRecord::RecordInvalid, error_message)
      end
    end

    context "when an invalid email is entered" do
      let(:invalid_email) { "not_an_email" }
      let(:error_message) { "Validation failed: email #{I18n.t('activerecord.errors.models.user.attributes.email.invalid')}" }

      it "validates email format" do
        expect { create(:user, email: invalid_email) }
          .to raise_error(ActiveRecord::RecordInvalid, error_message)
      end
    end

    context "when the email entered has already been used" do
      let(:user) { create(:user) }
      let(:error_message) { "Validation failed: email #{I18n.t('activerecord.errors.models.user.attributes.email.taken')}" }

      it "validates email uniqueness" do
        expect { create(:user, email: user.email) }
          .to raise_error(ActiveRecord::RecordInvalid, error_message)
      end
    end

    context "when a user is added to a merged organisation" do
      let(:merged_organisation) { create(:organisation, merge_date: Time.zone.yesterday) }
      let(:error_message) { "Validation failed: Organisation #{I18n.t('validations.organisation.merged')}" }

      it "validates organisation merge status" do
        expect { create(:user, organisation: merged_organisation) }
          .to raise_error(ActiveRecord::RecordInvalid, error_message)
      end
    end
  end

  describe "delete" do
    let(:user) { create(:user) }

    before do
      create(
        :lettings_log,
        :completed,
        owning_organisation: user.organisation,
        managing_organisation: user.organisation,
        assigned_to: user,
      )

      create(
        :sales_log,
        owning_organisation: user.organisation,
        assigned_to: user,
      )
    end

    context "when the user is deleted" do
      it "owned lettings logs are not deleted as a result" do
        expect { user.destroy! }
          .to change(described_class, :count).by(-1)
          .and change(LettingsLog, :count).by(0)
      end

      it "owned sales logs are not deleted as a result" do
        expect { user.destroy! }
          .to change(described_class, :count).by(-1)
          .and change(SalesLog, :count).by(0)
      end
    end
  end

  describe "#send_data_protection_confirmation_reminder" do
    context "when updating to dpo" do
      let!(:user) { create(:user, is_dpo: false) }

      context "when data_protection_confirmed? is false" do
        it "sends the email" do
          allow(user.organisation).to receive(:data_protection_confirmed?).and_return(false)
          expect { user.update!(is_dpo: true) }.to enqueue_job(ActionMailer::MailDeliveryJob).with(
            "DataProtectionConfirmationMailer",
            "send_confirmation_email",
            "deliver_now",
            args: [user],
          )
        end
      end

      context "when data_protection_confirmed? is true" do
        it "does not send the email" do
          allow(user.organisation).to receive(:data_protection_confirmed?).and_return(true)
          expect { user.update!(is_dpo: true) }.not_to enqueue_job(ActionMailer::MailDeliveryJob)
        end
      end
    end

    context "when updating to non dpo" do
      let!(:user) { create(:user, is_dpo: true) }

      it "does not send the email" do
        expect { user.update!(is_dpo: false) }.not_to enqueue_job(ActionMailer::MailDeliveryJob)
      end
    end

    context "when updating something else" do
      let!(:user) { create(:user) }

      it "does not send the email" do
        expect { user.update!(name: "foobar") }.not_to enqueue_job(ActionMailer::MailDeliveryJob)
      end
    end
  end

  describe "#status" do
    let(:user) { create(:user) }

    it "returns :deactivated for deactivated users" do
      user.active = false

      expect(user.status).to eq(:deactivated)
    end

    it "returns :unconfirmed for a user with no confirmed_at" do
      user.confirmed_at = nil

      expect(user.status).to eq(:unconfirmed)
    end

    it "returns :deactivated for a user with no confirmed_at and active false" do
      user.confirmed_at = nil
      user.active = false

      expect(user.status).to eq(:deactivated)
    end

    it "returns :unconfirmed for a user with no confirmed_at and active true" do
      user.confirmed_at = nil
      user.active = true

      expect(user.status).to eq(:unconfirmed)
    end

    it "returns :active for a user with active status and confirmation date" do
      user.active = true
      user.confirmed_at = Time.zone.yesterday

      expect(user.status).to eq(:active)
    end

    context "when the user is deleted" do
      let(:user) { create(:user, discarded_at: Time.zone.yesterday) }

      it "returns the status of the user" do
        user.destroy!
        expect(user.status).to eq(:deleted)
      end
    end
  end

  describe "#reassign_logs_and_update_organisation" do
    let(:user) { create(:user) }
    let(:new_organisation) { create(:organisation) }
    let!(:lettings_log) { create(:lettings_log, assigned_to: user) }
    let!(:sales_log) { create(:sales_log, assigned_to: user) }
    let(:notify_client) { instance_double(Notifications::Client) }
    let(:devise_notify_mailer) { DeviseNotifyMailer.new }

    before do
      allow(DeviseNotifyMailer).to receive(:new).and_return(devise_notify_mailer)
      allow(devise_notify_mailer).to receive(:notify_client).and_return(notify_client)
      allow(notify_client).to receive(:send_email).and_return(true)
    end

    context "when reassigning all orgs for logs" do
      it "reassigns all logs to the new organisation" do
        user.reassign_logs_and_update_organisation(new_organisation, "reassign_all")
        expect(lettings_log.reload.owning_organisation).to eq(new_organisation)
        expect(lettings_log.managing_organisation).to eq(new_organisation)
        expect(lettings_log.values_updated_at).not_to be_nil
        expect(sales_log.reload.owning_organisation).to eq(new_organisation)
        expect(sales_log.managing_organisation).to eq(new_organisation)
        expect(sales_log.values_updated_at).not_to be_nil
      end

      it "moves the user to the new organisation" do
        user.reassign_logs_and_update_organisation(new_organisation, "reassign_all")

        expect(user.organisation).to eq(new_organisation)
      end

      it "sends organisation update emails" do
        expected_personalisation = {
          from_organisation: "#{user.organisation.name} (Organisation ID: #{user.organisation_id})",
          to_organisation: "#{new_organisation.name} (Organisation ID: #{new_organisation.id})",
          reassigned_logs_text: "There are 2 logs assigned to you. The stock owner and managing agent on these logs has been changed from #{user.organisation.name} to #{new_organisation.name}.",
        }
        user.reassign_logs_and_update_organisation(new_organisation, "reassign_all")

        expect(notify_client).to have_received(:send_email).with(email_address: user.email, template_id: User::ORGANISATION_UPDATE_TEMPLATE_ID, personalisation: expected_personalisation).once
      end

      context "and there is an error" do
        before do
          allow(user).to receive(:update!).and_raise(ActiveRecord::RecordInvalid)
        end

        it "rolls back the changes" do
          user.reassign_logs_and_update_organisation(new_organisation, "reassign_all")
          expect(lettings_log.reload.owning_organisation).not_to eq(new_organisation)
          expect(lettings_log.managing_organisation).not_to eq(new_organisation)
          expect(lettings_log.values_updated_at).to be_nil
          expect(sales_log.reload.owning_organisation).not_to eq(new_organisation)
          expect(sales_log.managing_organisation).not_to eq(new_organisation)
          expect(sales_log.values_updated_at).to be_nil
          expect(user.organisation).not_to eq(new_organisation)
        end
      end

      context "and the user has pending logs assigned to them" do
        let(:lettings_bu) { create(:bulk_upload, :lettings) }
        let(:sales_bu) { create(:bulk_upload, :sales) }
        let!(:pending_lettings_log) { build(:lettings_log, status: "pending", assigned_to: user, bulk_upload: lettings_bu) }
        let!(:pending_sales_log) { build(:sales_log, status: "pending", assigned_to: user, bulk_upload: sales_bu) }

        before do
          pending_lettings_log.skip_update_status = true
          pending_lettings_log.save!
          pending_sales_log.skip_update_status = true
          pending_sales_log.save!
        end

        it "sets choice for fixing the logs to cancelled-by-moved-user" do
          user.reassign_logs_and_update_organisation(new_organisation, "reassign_all")

          expect(lettings_bu.reload.choice).to eq("cancelled-by-moved-user")
          expect(sales_bu.reload.choice).to eq("cancelled-by-moved-user")
          expect(lettings_bu.moved_user_id).to eq(user.id)
          expect(sales_bu.moved_user_id).to eq(user.id)

          expect(pending_lettings_log.reload.status).to eq("pending")
          expect(pending_sales_log.reload.status).to eq("pending")
        end
      end
    end

    context "when reassigning stock owners for logs" do
      it "reassigns stock owners for logs to the new organisation" do
        user.reassign_logs_and_update_organisation(new_organisation, "reassign_stock_owner")
        expect(lettings_log.reload.owning_organisation).to eq(new_organisation)
        expect(lettings_log.managing_organisation).not_to eq(new_organisation)
        expect(lettings_log.values_updated_at).not_to be_nil
        expect(sales_log.reload.owning_organisation).to eq(new_organisation)
        expect(sales_log.managing_organisation).not_to eq(new_organisation)
        expect(sales_log.values_updated_at).not_to be_nil
      end

      it "moves the user to the new organisation" do
        user.reassign_logs_and_update_organisation(new_organisation, "reassign_stock_owner")

        expect(user.organisation).to eq(new_organisation)
      end

      it "sends organisation update emails" do
        expected_personalisation = {
          from_organisation: "#{user.organisation.name} (Organisation ID: #{user.organisation_id})",
          to_organisation: "#{new_organisation.name} (Organisation ID: #{new_organisation.id})",
          reassigned_logs_text: "There are 2 logs assigned to you. The stock owner on these logs has been changed from #{user.organisation.name} to #{new_organisation.name}.",
        }
        user.reassign_logs_and_update_organisation(new_organisation, "reassign_stock_owner")

        expect(notify_client).to have_received(:send_email).with(email_address: user.email, template_id: User::ORGANISATION_UPDATE_TEMPLATE_ID, personalisation: expected_personalisation).once
      end

      context "and there is an error" do
        before do
          allow(user).to receive(:update!).and_raise(ActiveRecord::RecordInvalid)
        end

        it "rolls back the changes" do
          user.reassign_logs_and_update_organisation(new_organisation, "reassign_all")
          expect(lettings_log.reload.owning_organisation).not_to eq(new_organisation)
          expect(lettings_log.managing_organisation).not_to eq(new_organisation)
          expect(lettings_log.values_updated_at).to be_nil
          expect(sales_log.reload.owning_organisation).not_to eq(new_organisation)
          expect(sales_log.managing_organisation).not_to eq(new_organisation)
          expect(sales_log.values_updated_at).to be_nil
          expect(user.organisation).not_to eq(new_organisation)
        end
      end
    end

    context "when reassigning managing agents for logs" do
      it "reassigns managing agents for logs to the new organisation" do
        user.reassign_logs_and_update_organisation(new_organisation, "reassign_managing_agent")
        expect(lettings_log.reload.owning_organisation).not_to eq(new_organisation)
        expect(lettings_log.managing_organisation).to eq(new_organisation)
        expect(lettings_log.values_updated_at).not_to be_nil
        expect(sales_log.reload.owning_organisation).not_to eq(new_organisation)
        expect(sales_log.managing_organisation).to eq(new_organisation)
        expect(sales_log.values_updated_at).not_to be_nil
      end

      it "moves the user to the new organisation" do
        user.reassign_logs_and_update_organisation(new_organisation, "reassign_managing_agent")

        expect(user.organisation).to eq(new_organisation)
      end

      it "sends organisation update emails" do
        expected_personalisation = {
          from_organisation: "#{user.organisation.name} (Organisation ID: #{user.organisation_id})",
          to_organisation: "#{new_organisation.name} (Organisation ID: #{new_organisation.id})",
          reassigned_logs_text: "There are 2 logs assigned to you. The managing agent on these logs has been changed from #{user.organisation.name} to #{new_organisation.name}.",
        }
        user.reassign_logs_and_update_organisation(new_organisation, "reassign_managing_agent")

        expect(notify_client).to have_received(:send_email).with(email_address: user.email, template_id: User::ORGANISATION_UPDATE_TEMPLATE_ID, personalisation: expected_personalisation).once
      end

      context "and there is an error" do
        before do
          allow(user).to receive(:update!).and_raise(ActiveRecord::RecordInvalid)
        end

        it "rolls back the changes" do
          user.reassign_logs_and_update_organisation(new_organisation, "reassign_all")
          expect(lettings_log.reload.owning_organisation).not_to eq(new_organisation)
          expect(lettings_log.managing_organisation).not_to eq(new_organisation)
          expect(lettings_log.values_updated_at).to be_nil
          expect(sales_log.reload.owning_organisation).not_to eq(new_organisation)
          expect(sales_log.managing_organisation).not_to eq(new_organisation)
          expect(sales_log.values_updated_at).to be_nil
          expect(user.organisation).not_to eq(new_organisation)
        end
      end
    end

    context "when unassigning the logs" do
      context "and unassigned user exists" do
        let!(:unassigned_user) { create(:user, name: "Unassigned", organisation: user.organisation) }

        it "reassigns all the logs to the unassigned user" do
          user.reassign_logs_and_update_organisation(new_organisation, "unassign")

          expect(lettings_log.reload.assigned_to).to eq(unassigned_user)
          expect(lettings_log.values_updated_at).not_to be_nil
          expect(sales_log.reload.assigned_to).to eq(unassigned_user)
          expect(sales_log.values_updated_at).not_to be_nil
        end

        it "moves the user to the new organisation" do
          user.reassign_logs_and_update_organisation(new_organisation, "unassign")

          expect(user.organisation).to eq(new_organisation)
        end

        it "sends organisation update emails" do
          expected_personalisation = {
            from_organisation: "#{user.organisation.name} (Organisation ID: #{user.organisation_id})",
            to_organisation: "#{new_organisation.name} (Organisation ID: #{new_organisation.id})",
            reassigned_logs_text: "There are 2 logs assigned to you. These have now been unassigned.",
          }
          user.reassign_logs_and_update_organisation(new_organisation, "unassign")

          expect(notify_client).to have_received(:send_email).with(email_address: user.email, template_id: User::ORGANISATION_UPDATE_TEMPLATE_ID, personalisation: expected_personalisation).once
        end

        context "and there is an error" do
          before do
            allow(user).to receive(:update!).and_raise(ActiveRecord::RecordInvalid)
          end

          it "rolls back the changes" do
            user.reassign_logs_and_update_organisation(new_organisation, "unassign")
            expect(lettings_log.reload.assigned_to).to eq(user)
            expect(lettings_log.values_updated_at).to be_nil
            expect(sales_log.reload.assigned_to).to eq(user)
            expect(sales_log.values_updated_at).to be_nil
            expect(user.organisation).not_to eq(new_organisation)
          end
        end
      end

      context "and unassigned user doesn't exist" do
        it "reassigns all the logs to the unassigned user" do
          user.reassign_logs_and_update_organisation(new_organisation, "unassign")

          expect(lettings_log.reload.assigned_to.name).to eq("Unassigned")
          expect(lettings_log.values_updated_at).not_to be_nil
          expect(sales_log.reload.assigned_to.name).to eq("Unassigned")
          expect(sales_log.values_updated_at).not_to be_nil
        end

        it "moves the user to the new organisation" do
          user.reassign_logs_and_update_organisation(new_organisation, "unassign")

          expect(user.organisation).to eq(new_organisation)
        end

        context "and there is an error" do
          before do
            allow(user).to receive(:update!).and_raise(ActiveRecord::RecordInvalid)
          end

          it "rolls back the changes" do
            user.reassign_logs_and_update_organisation(new_organisation, "unassign")
            expect(lettings_log.reload.assigned_to).to eq(user)
            expect(lettings_log.values_updated_at).to be_nil
            expect(sales_log.reload.assigned_to).to eq(user)
            expect(sales_log.values_updated_at).to be_nil
            expect(user.organisation).not_to eq(new_organisation)
          end
        end
      end
    end

    context "when log_reassignent is not given" do
      context "and user has no logs" do
        let(:user_without_logs) { create(:user) }

        it "moves the user to the new organisation" do
          user_without_logs.reassign_logs_and_update_organisation(new_organisation, nil)

          expect(user_without_logs.organisation).to eq(new_organisation)
        end

        context "and there is an error" do
          before do
            allow(user_without_logs).to receive(:update!).and_raise(ActiveRecord::RecordInvalid)
          end

          it "rolls back the changes" do
            user_without_logs.reassign_logs_and_update_organisation(new_organisation, nil)
            expect(user_without_logs.organisation).not_to eq(new_organisation)
          end
        end

        it "sends organisation update emails" do
          expected_personalisation = {
            from_organisation: "#{user_without_logs.organisation.name} (Organisation ID: #{user_without_logs.organisation_id})",
            to_organisation: "#{new_organisation.name} (Organisation ID: #{new_organisation.id})",
            reassigned_logs_text: "",
          }
          user_without_logs.reassign_logs_and_update_organisation(new_organisation, nil)

          expect(notify_client).to have_received(:send_email).with(email_address: user_without_logs.email, template_id: User::ORGANISATION_UPDATE_TEMPLATE_ID, personalisation: expected_personalisation).once
        end
      end

      context "and user has logs" do
        it "does not move the user to the new organisation" do
          user.reassign_logs_and_update_organisation(new_organisation, nil)

          expect(user.organisation).not_to eq(new_organisation)
        end
      end
    end
  end
end