require "rails_helper"

RSpec.describe Location, type: :model do
  describe "#new" do
    let(:location) { FactoryBot.build(:location) }

    before do
      stub_request(:get, /api.postcodes.io/)
        .to_return(status: 200, body: "{\"status\":200,\"result\":{\"admin_district\":\"Manchester\",\"codes\":{\"admin_district\": \"E08000003\"}}}", headers: {})
    end

    it "belongs to an organisation" do
      expect(location.scheme).to be_a(Scheme)
    end

    it "infers the local authority" do
      location.postcode = "M1 1AE"
      location.save!
      expect(location.location_code).to eq("E08000003")
    end
  end

  describe "#validate_postcode" do
    let(:location) { FactoryBot.build(:location) }

    it "does not add an error if postcode is valid" do
      location.postcode = "M1 1AE"
      location.save!
      expect(location.errors).to be_empty
    end

    it "does add an error when the postcode is invalid" do
      location.postcode = "invalid"
      expect { location.save! }
        .to raise_error(ActiveRecord::RecordInvalid, "Validation failed: Postcode #{I18n.t('validations.postcode')}")
    end

    it "does add an error when the postcode is missing" do
      location.postcode = nil
      expect { location.save! }
        .to raise_error(ActiveRecord::RecordInvalid, "Validation failed: Postcode #{I18n.t('validations.postcode')}")
    end
  end

  describe "#units" do
    let(:location) { FactoryBot.build(:location) }

    it "does add an error when the number of units is invalid" do
      location.units = nil
      expect { location.save! }
        .to raise_error(ActiveRecord::RecordInvalid, "Validation failed: Units #{I18n.t('activerecord.errors.models.location.attributes.units.blank')}")
    end
  end

  describe "#type_of_unit" do
    let(:location) { FactoryBot.build(:location) }

    it "does add an error when the type of unit is invalid" do
      location.type_of_unit = nil
      expect { location.save! }
        .to raise_error(ActiveRecord::RecordInvalid, "Validation failed: Type of unit #{I18n.t('activerecord.errors.models.location.attributes.type_of_unit.blank')}")
    end
  end

  describe "#mobility_type" do
    let(:location) { FactoryBot.build(:location) }

    it "does add an error when the mobility type is invalid" do
      location.mobility_type = nil
      expect { location.save! }
        .to raise_error(ActiveRecord::RecordInvalid, "Validation failed: Mobility type #{I18n.t('activerecord.errors.models.location.attributes.mobility_type.blank')}")
    end
  end

  describe "paper trail" do
    let(:location) { FactoryBot.create(:location) }
    let!(:name) { location.name }

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

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

  describe "scopes" do
    before do
      FactoryBot.create(:location, name: "ABC", postcode: "NW1 8RR", startdate: Time.zone.today)
      FactoryBot.create(:location, name: "XYZ", postcode: "SE1 6HJ", startdate: Time.zone.today + 1.day)
      FactoryBot.create(:location, name: "GHQ", postcode: "EW1 7JK", startdate: Time.zone.today - 1.day, confirmed: false)
      FactoryBot.create(:location, name: "GHQ", postcode: "EW1 7JK", startdate: nil)
    end

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

    context "when searching by postcode" do
      it "returns case insensitive matching records" do
        expect(described_class.search_by_postcode("se1 6hj").count).to eq(1)
        expect(described_class.search_by_postcode("SE1 6HJ").count).to eq(1)
      end
    end

    context "when searching by all searchable field" do
      it "returns case insensitive matching records" do
        expect(described_class.search_by("aBc").count).to eq(1)
        expect(described_class.search_by("nw18rr").count).to eq(1)
      end
    end

    context "when filtering by started locations" do
      it "returns only locations that started today or earlier" do
        expect(described_class.started.count).to eq(3)
      end
    end

    context "when filtering by active locations" do
      it "returns only locations that started today or earlier and have been confirmed" do
        expect(described_class.active.count).to eq(2)
      end
    end
  end

  describe "status" do
    let(:location) { FactoryBot.build(:location, startdate: Time.zone.local(2022, 4, 1)) }

    before do
      Timecop.freeze(2022, 6, 7)
    end

    after do
      Timecop.unfreeze
    end

    context "when location is not confirmed" do
      it "returns incomplete " do
        location.confirmed = false
        expect(location.status).to eq(:incomplete)
      end
    end

    context "when there have not been any previous deactivations" do
      it "returns active if the location has no deactivation records" do
        expect(location.status).to eq(:active)
      end

      it "returns deactivating soon if deactivation_date is in the future" do
        FactoryBot.create(:location_deactivation_period, deactivation_date: Time.zone.local(2022, 8, 8), location:)
        location.save!
        expect(location.status).to eq(:deactivating_soon)
      end

      it "returns deactivated if deactivation_date is in the past" do
        FactoryBot.create(:location_deactivation_period, deactivation_date: Time.zone.local(2022, 6, 6), location:)
        location.save!
        expect(location.status).to eq(:deactivated)
      end

      it "returns deactivated if deactivation_date is today" do
        FactoryBot.create(:location_deactivation_period, deactivation_date: Time.zone.local(2022, 6, 7), location:)
        location.save!
        expect(location.status).to eq(:deactivated)
      end

      it "returns reactivating soon if the location has a future reactivation date" do
        FactoryBot.create(:location_deactivation_period, deactivation_date: Time.zone.local(2022, 6, 7), reactivation_date: Time.zone.local(2022, 6, 8), location:)
        location.save!
        expect(location.status).to eq(:reactivating_soon)
      end

      it "returns activating soon if the location has a future startdate" do
        location.startdate = Time.zone.local(2022, 7, 7)
        location.save!
        expect(location.status).to eq(:activating_soon)
      end
    end

    context "when there have been previous deactivations" do
      before do
        FactoryBot.create(:location_deactivation_period, deactivation_date: Time.zone.local(2022, 5, 4), reactivation_date: Time.zone.local(2022, 6, 5), location:)
        location.save!
      end

      it "returns active if the location has no relevant deactivation records" do
        expect(location.status).to eq(:active)
      end

      it "returns deactivating soon if deactivation_date is in the future" do
        FactoryBot.create(:location_deactivation_period, deactivation_date: Time.zone.local(2022, 8, 8), location:)
        location.save!
        expect(location.status).to eq(:deactivating_soon)
      end

      it "returns deactivated if deactivation_date is in the past" do
        FactoryBot.create(:location_deactivation_period, deactivation_date: Time.zone.local(2022, 6, 6), location:)
        location.save!
        expect(location.status).to eq(:deactivated)
      end

      it "returns deactivated if deactivation_date is today" do
        FactoryBot.create(:location_deactivation_period, deactivation_date: Time.zone.local(2022, 6, 7), location:)
        location.save!
        expect(location.status).to eq(:deactivated)
      end

      it "returns reactivating soon if the location has a future reactivation date" do
        Timecop.freeze(2022, 6, 8)
        FactoryBot.create(:location_deactivation_period, deactivation_date: Time.zone.local(2022, 6, 7), reactivation_date: Time.zone.local(2022, 6, 9), location:)
        location.save!
        expect(location.status).to eq(:reactivating_soon)
      end

      it "returns reactivating soon if the location had a deactivation during another deactivation" do
        Timecop.freeze(2022, 6, 4)
        FactoryBot.create(:location_deactivation_period, deactivation_date: Time.zone.local(2022, 5, 5), reactivation_date: Time.zone.local(2022, 6, 2), location:)
        location.save!
        expect(location.status).to eq(:reactivating_soon)
      end

      it "returns activating soon if the location has a future startdate" do
        location.startdate = Time.zone.local(2022, 7, 7)
        location.save!
        expect(location.status).to eq(:activating_soon)
      end
    end
  end

  describe "available_from" do
    context "when there is a startdate" do
      let(:location) { FactoryBot.build(:location, startdate: Time.zone.local(2022, 4, 6)) }

      it "returns the startdate" do
        expect(location.available_from).to eq(Time.zone.local(2022, 4, 6))
      end
    end

    context "when there is no start date" do
      context "and the location was created at the start of the 2022/23 collection window" do
        let(:location) { FactoryBot.build(:location, created_at: Time.zone.local(2022, 4, 6), startdate: nil) }

        it "returns the beginning of 22/23 collection window" do
          expect(location.available_from).to eq(Time.zone.local(2022, 4, 1))
        end
      end

      context "and the location was created at the end of the 2022/23 collection window" do
        let(:location) { FactoryBot.build(:location, created_at: Time.zone.local(2023, 2, 6), startdate: nil) }

        it "returns the beginning of 22/23 collection window" do
          expect(location.available_from).to eq(Time.zone.local(2022, 4, 1))
        end
      end

      context "and the location was created at the start of the 2021/22 collection window" do
        let(:location) { FactoryBot.build(:location, created_at: Time.zone.local(2021, 4, 6), startdate: nil) }

        it "returns the beginning of 21/22 collection window" do
          expect(location.available_from).to eq(Time.zone.local(2021, 4, 1))
        end
      end

      context "and the location was created at the end of the 2021/22 collection window" do
        let(:location) { FactoryBot.build(:location, created_at: Time.zone.local(2022, 2, 6), startdate: nil) }

        it "returns the beginning of 21/22 collection window" do
          expect(location.available_from).to eq(Time.zone.local(2021, 4, 1))
        end
      end
    end
  end
end