require "rails_helper"

RSpec.describe Validations::Sales::SaleInformationValidations do
  subject(:sale_information_validator) { validator_class.new }

  let(:validator_class) { Class.new { include Validations::Sales::SaleInformationValidations } }

  describe "#validate_practical_completion_date_before_saledate" do
    context "when hodate blank" do
      let(:record) { build(:sales_log, hodate: nil) }

      it "does not add an error" do
        sale_information_validator.validate_practical_completion_date_before_saledate(record)

        expect(record.errors).not_to be_present
      end
    end

    context "when saledate blank" do
      let(:record) { build(:sales_log, saledate: nil) }

      it "does not add an error" do
        sale_information_validator.validate_practical_completion_date_before_saledate(record)

        expect(record.errors).not_to be_present
      end
    end

    context "when saledate and hodate blank" do
      let(:record) { build(:sales_log, hodate: nil, saledate: nil) }

      it "does not add an error" do
        sale_information_validator.validate_practical_completion_date_before_saledate(record)

        expect(record.errors).not_to be_present
      end
    end

    context "when hodate before saledate" do
      let(:record) { build(:sales_log, hodate: 2.months.ago, saledate: 1.month.ago) }

      it "does not add the error" do
        sale_information_validator.validate_practical_completion_date_before_saledate(record)

        expect(record.errors).not_to be_present
      end
    end

    context "when hodate after saledate" do
      let(:record) { build(:sales_log, hodate: 1.month.ago, saledate: 2.months.ago) }

      it "adds error" do
        sale_information_validator.validate_practical_completion_date_before_saledate(record)

        expect(record.errors[:hodate]).to be_present
      end
    end

    context "when hodate == saledate" do
      let(:record) { build(:sales_log, hodate: Time.zone.parse("2023-07-01"), saledate: Time.zone.parse("2023-07-01")) }

      it "does not add an error" do
        sale_information_validator.validate_practical_completion_date_before_saledate(record)

        expect(record.errors[:hodate]).not_to be_present
      end
    end
  end

  describe "#validate_exchange_date" do
    context "when exdate blank" do
      let(:record) { build(:sales_log, exdate: nil) }

      it "does not add an error" do
        sale_information_validator.validate_exchange_date(record)

        expect(record.errors[:exdate]).not_to be_present
      end
    end

    context "when saledate blank" do
      let(:record) { build(:sales_log, saledate: nil) }

      it "does not add an error" do
        sale_information_validator.validate_exchange_date(record)

        expect(record.errors[:exdate]).not_to be_present
      end
    end

    context "when saledate and exdate blank" do
      let(:record) { build(:sales_log, exdate: nil, saledate: nil) }

      it "does not add an error" do
        sale_information_validator.validate_exchange_date(record)

        expect(record.errors[:exdate]).not_to be_present
      end
    end

    context "when exdate before saledate" do
      let(:record) { build(:sales_log, exdate: 2.months.ago, saledate: 1.month.ago) }

      it "does not add the error" do
        sale_information_validator.validate_exchange_date(record)

        expect(record.errors[:exdate]).not_to be_present
      end
    end

    context "when exdate more than 1 year before saledate" do
      let(:record) { build(:sales_log, exdate: 2.years.ago, saledate: 1.month.ago) }

      it "adds error" do
        sale_information_validator.validate_exchange_date(record)

        expect(record.errors[:exdate]).to eq(
          ["Contract exchange date must be less than 1 year before sale completion date"],
        )
        expect(record.errors[:saledate]).to eq(
          ["Sale completion date must be less than 1 year after contract exchange date"],
        )
      end
    end

    context "when exdate after saledate" do
      let(:record) { build(:sales_log, exdate: 1.month.ago, saledate: 2.months.ago) }

      it "adds error" do
        sale_information_validator.validate_exchange_date(record)

        expect(record.errors[:exdate]).to eq(
          ["Contract exchange date must be before sale completion date"],
        )
        expect(record.errors[:saledate]).to eq(
          ["Sale completion date must be after contract exchange date"],
        )
      end
    end

    context "when exdate == saledate" do
      let(:record) { build(:sales_log, exdate: Time.zone.parse("2023-07-01"), saledate: Time.zone.parse("2023-07-01")) }

      it "does not add an error" do
        sale_information_validator.validate_exchange_date(record)

        expect(record.errors[:exdate]).not_to be_present
      end
    end
  end

  describe "#validate_previous_property_unit_type" do
    context "when number of bedrooms is <= 1" do
      let(:record) { FactoryBot.build(:sales_log, frombeds: 1, fromprop: 2) }

      it "does not add an error if it's a bedsit" do
        sale_information_validator.validate_previous_property_unit_type(record)

        expect(record.errors).to be_empty
      end
    end

    context "when number of bedrooms is > 1" do
      let(:record) { FactoryBot.build(:sales_log, frombeds: 2, fromprop: 2) }

      it "does add an error if it's a bedsit" do
        sale_information_validator.validate_previous_property_unit_type(record)
        expect(record.errors["fromprop"]).to include(I18n.t("validations.sale_information.previous_property_type.property_type_bedsit"))
        expect(record.errors["frombeds"]).to include(I18n.t("validations.sale_information.previous_property_type.property_type_bedsit"))
      end
    end
  end

  describe "#validate_discounted_ownership_value" do
    context "when sale is on or after 24/25 collection window" do
      context "when grant is routed to" do
        let(:record) { FactoryBot.build(:sales_log, mortgage: 10_000, deposit: 5_000, value: 30_000, ownershipsch: 2, type: 8, saledate: Time.zone.local(2024, 4, 3)) }

        context "and not provided" do
          before do
            record.grant = nil
          end

          it "does not add an error" do
            sale_information_validator.validate_discounted_ownership_value(record)

            expect(record.errors).to be_empty
          end
        end

        context "and is provided" do
          it "adds an error if mortgage, deposit and grant total does not equal market value" do
            record.grant = 3_000
            sale_information_validator.validate_discounted_ownership_value(record)
            expected_message = ["Mortgage, deposit, and grant total must equal £30,000.00"]

            expect(record.errors[:mortgage]).to eq(expected_message)
            expect(record.errors[:deposit]).to eq(expected_message)
            expect(record.errors[:grant]).to eq(expected_message)
            expect(record.errors[:value]).to eq(expected_message)
            expect(record.errors[:discount]).to eq(expected_message)
          end

          it "does not add an error if mortgage, deposit and grant total equals market value" do
            record.grant = 15_000
            sale_information_validator.validate_discounted_ownership_value(record)
            expect(record.errors).to be_empty
          end
        end
      end

      context "when discount is routed to" do
        let(:record) { FactoryBot.build(:sales_log, mortgage: 10_000, deposit: 5_000, value: 30_000, ownershipsch: 2, type: 9, saledate: Time.zone.local(2024, 4, 3)) }

        context "and not provided" do
          before do
            record.discount = nil
          end

          it "does not add an error" do
            sale_information_validator.validate_discounted_ownership_value(record)

            expect(record.errors).to be_empty
          end
        end

        context "and is provided" do
          it "adds an error if mortgage and deposit total does not equal market value - discount" do
            record.discount = 10
            sale_information_validator.validate_discounted_ownership_value(record)

            expected_message = ["Mortgage, deposit, and grant total must equal £27,000.00"]

            expect(record.errors[:mortgage]).to eq(expected_message)
            expect(record.errors[:deposit]).to eq(expected_message)
            expect(record.errors[:grant]).to eq(expected_message)
            expect(record.errors[:value]).to eq(expected_message)
            expect(record.errors[:discount]).to eq(expected_message)
          end

          it "does not add an error if mortgage and deposit total equals market value - discount" do
            record.discount = 50
            sale_information_validator.validate_discounted_ownership_value(record)
            expect(record.errors).to be_empty
          end
        end
      end

      context "when neither discount nor grant is routed to" do
        let(:record) { FactoryBot.build(:sales_log, mortgage: 10_000, value: 30_000, ownershipsch: 2, type: 29, saledate: Time.zone.local(2024, 4, 3)) }

        it "adds an error if mortgage and deposit total does not equal market value" do
          record.deposit = 2_000
          sale_information_validator.validate_discounted_ownership_value(record)

          expected_message = ["Mortgage, deposit, and grant total must equal £30,000.00"]

          expect(record.errors[:mortgage]).to eq(expected_message)
          expect(record.errors[:deposit]).to eq(expected_message)
          expect(record.errors[:grant]).to eq(expected_message)
          expect(record.errors[:value]).to eq(expected_message)
          expect(record.errors[:discount]).to eq(expected_message)
        end

        it "does not add an error if mortgage and deposit total equals market value" do
          record.deposit = 20_000
          sale_information_validator.validate_discounted_ownership_value(record)
          expect(record.errors).to be_empty
        end
      end

      context "when mortgage is routed to" do
        let(:record) { FactoryBot.build(:sales_log, mortgageused: 1, deposit: 5_000, grant: 3_000, value: 20_000, discount: 10, ownershipsch: 2, saledate: Time.zone.local(2024, 4, 3)) }

        context "and not provided" do
          before do
            record.mortgage = nil
          end

          it "does not add an error" do
            sale_information_validator.validate_discounted_ownership_value(record)

            expect(record.errors).to be_empty
          end
        end

        context "and is provided" do
          it "adds an error if mortgage, grant and deposit total does not equal market value - discount" do
            record.mortgage = 10
            sale_information_validator.validate_discounted_ownership_value(record)

            expected_message = ["Mortgage, deposit, and grant total must equal £18,000.00"]

            expect(record.errors[:mortgage]).to eq(expected_message)
            expect(record.errors[:deposit]).to eq(expected_message)
            expect(record.errors[:grant]).to eq(expected_message)
            expect(record.errors[:value]).to eq(expected_message)
            expect(record.errors[:discount]).to eq(expected_message)
          end

          it "does not add an error if mortgage, grant and deposit total equals market value - discount" do
            record.mortgage = 10_000
            sale_information_validator.validate_discounted_ownership_value(record)
            expect(record.errors).to be_empty
          end
        end
      end

      context "when mortgage is not routed to" do
        let(:record) { FactoryBot.build(:sales_log, mortgageused: 2, deposit: 5_000, grant: 3_000, value: 20_000, discount: 10, ownershipsch: 2, saledate: Time.zone.local(2024, 4, 3)) }

        it "adds an error if grant and deposit total does not equal market value - discount" do
          sale_information_validator.validate_discounted_ownership_value(record)

          expected_message = ["Mortgage, deposit, and grant total must equal £18,000.00"]
          expect(record.errors[:mortgage]).to eq(expected_message)
          expect(record.errors[:deposit]).to eq(expected_message)
          expect(record.errors[:grant]).to eq(expected_message)
          expect(record.errors[:value]).to eq(expected_message)
          expect(record.errors[:discount]).to eq(expected_message)
        end

        it "does not add an error if mortgage, grant and deposit total equals market value - discount" do
          record.grant = 13_000
          sale_information_validator.validate_discounted_ownership_value(record)
          expect(record.errors).to be_empty
        end
      end

      context "when ownership is not discounted" do
        let(:record) { FactoryBot.build(:sales_log, mortgage: 10_000, deposit: 5_000, grant: 3_000, value: 20_000, discount: 10, ownershipsch: 1, saledate: Time.zone.local(2024, 4, 3)) }

        it "does not add an error" do
          sale_information_validator.validate_discounted_ownership_value(record)

          expect(record.errors).to be_empty
        end
      end
    end

    context "when sale is before 24/25 collection" do
      let(:record) { FactoryBot.build(:sales_log, mortgageused: 2, deposit: 5_000, grant: 3_000, value: 20_000, discount: 10, ownershipsch: 2, saledate: Time.zone.local(2023, 4, 4)) }

      it "does not add an error" do
        sale_information_validator.validate_discounted_ownership_value(record)

        expect(record.errors).to be_empty
      end
    end
  end

  describe "#validate_basic_monthly_rent" do
    context "when within permitted bounds" do
      let(:record) { build(:sales_log, mrent: 9998, ownershipsch: 1, type: 2) }

      it "does not add an error" do
        sale_information_validator.validate_basic_monthly_rent(record)

        expect(record.errors[:mrent]).not_to be_present
        expect(record.errors[:type]).not_to be_present
      end
    end

    context "when the rent is blank" do
      let(:record) { build(:sales_log, mrent: nil, ownershipsch: 1, type: 2) }

      it "does not add an error" do
        sale_information_validator.validate_basic_monthly_rent(record)

        expect(record.errors[:mrent]).not_to be_present
        expect(record.errors[:type]).not_to be_present
      end
    end

    context "when the type is old persons shared ownership" do
      let(:record) { build(:sales_log, mrent: 100_000, ownershipsch: 1, type: 24) }

      it "does not add an error" do
        sale_information_validator.validate_basic_monthly_rent(record)

        expect(record.errors[:mrent]).not_to be_present
        expect(record.errors[:type]).not_to be_present
      end
    end

    context "when the type is blank" do
      let(:record) { build(:sales_log, mrent: 100_000, ownershipsch: 1, type: nil) }

      it "does not add an error" do
        sale_information_validator.validate_basic_monthly_rent(record)

        expect(record.errors[:mrent]).not_to be_present
        expect(record.errors[:type]).not_to be_present
      end
    end

    context "when higher than upper bound" do
      let(:record) { build(:sales_log, mrent: 100_000, ownershipsch: 1, type: 2) }

      it "adds an error" do
        sale_information_validator.validate_basic_monthly_rent(record)

        expect(record.errors[:mrent]).to include(I18n.t("validations.sale_information.monthly_rent.higher_than_expected"))
        expect(record.errors[:type]).to include(I18n.t("validations.sale_information.monthly_rent.higher_than_expected"))
      end
    end
  end
end