submit-social-housing-lettings-and-sales-data/spec/models/lettings_log_spec.rb

require "rails_helper"
require "shared/shared_examples_for_derived_fields"

RSpec.describe LettingsLog do
  let(:different_managing_organisation) { FactoryBot.create(:organisation) }
  let(:created_by_user) { FactoryBot.create(:user) }
  let(:owning_organisation) { created_by_user.organisation }
  let(:fake_2021_2022_form) { Form.new("spec/fixtures/forms/2021_2022.json") }

  before do
    allow(FormHandler.instance).to receive(:current_lettings_form).and_return(fake_2021_2022_form)
  end

  include_examples "shared examples for derived fields", :lettings_log

  it "inherits from log" do
    expect(described_class).to be < Log
    expect(described_class).to be < ApplicationRecord
  end

  it "is a not a sales log" do
    lettings_log = FactoryBot.build(:lettings_log, created_by: created_by_user)
    expect(lettings_log.sales?).to be false
  end

  it "is a lettings log" do
    lettings_log = FactoryBot.build(:lettings_log, created_by: created_by_user)
    expect(lettings_log).to be_lettings
  end

  describe "#form" do
    let(:lettings_log) { FactoryBot.build(:lettings_log, created_by: created_by_user) }
    let(:lettings_log_2) { FactoryBot.build(:lettings_log, startdate: Time.zone.local(2022, 1, 1), created_by: created_by_user) }
    let(:lettings_log_year_2) { FactoryBot.build(:lettings_log, startdate: Time.zone.local(2023, 5, 1), created_by: created_by_user) }

    it "has returns the correct form based on the start date" do
      expect(lettings_log.form_name).to be_nil
      expect(lettings_log.form).to be_a(Form)
      expect(lettings_log_2.form_name).to eq("previous_lettings")
      expect(lettings_log_2.form).to be_a(Form)
      expect(lettings_log_year_2.form_name).to eq("next_lettings")
      expect(lettings_log_year_2.form).to be_a(Form)
    end

    context "when a date outside the collection window is passed" do
      let(:lettings_log) { FactoryBot.build(:lettings_log, startdate: Time.zone.local(2015, 1, 1), created_by: created_by_user) }

      it "returns the first form" do
        expect(lettings_log.form).to be_a(Form)
        expect(lettings_log.form.start_date.year).to eq(2021)
      end
    end
  end

  describe "#new" do
    context "when creating a record" do
      let(:lettings_log) do
        described_class.create(
          owning_organisation:,
          managing_organisation: owning_organisation,
          created_by: created_by_user,
        )
      end

      it "attaches the correct custom validator" do
        expect(lettings_log._validators.values.flatten.map(&:class))
          .to include(LettingsLogValidator)
      end
    end
  end

  describe "#update" do
    let(:lettings_log) { FactoryBot.create(:lettings_log, created_by: created_by_user) }
    let(:validator) { lettings_log._validators[nil].first }

    after do
      lettings_log.update(age1: 25)
    end

    it "validates start date" do
      expect(validator).to receive(:validate_startdate)
    end

    it "validates intermediate rent product name" do
      expect(validator).to receive(:validate_irproduct_other)
    end

    it "validates other household member details" do
      expect(validator).to receive(:validate_household_number_of_other_members)
    end

    it "validates bedroom number" do
      expect(validator).to receive(:validate_shared_housing_rooms)
    end

    it "validates number of times the property has been relet" do
      expect(validator).to receive(:validate_property_number_of_times_relet)
    end

    it "validates tenancy type" do
      expect(validator).to receive(:validate_fixed_term_tenancy)
      expect(validator).to receive(:validate_other_tenancy_type)
    end

    it "validates the previous postcode" do
      expect(validator).to receive(:validate_previous_accommodation_postcode)
    end

    it "validates the net income" do
      expect(validator).to receive(:validate_net_income)
    end

    it "validates reasonable preference" do
      expect(validator).to receive(:validate_reasonable_preference)
    end

    it "validates reason for leaving last settled home" do
      expect(validator).to receive(:validate_reason_for_leaving_last_settled_home)
    end

    it "validates previous housing situation" do
      expect(validator).to receive(:validate_previous_housing_situation)
    end

    it "validates the min and max of numeric questions" do
      expect(validator).to receive(:validate_numeric_min_max)
    end

    it "validates armed forces" do
      expect(validator).to receive(:validate_armed_forces)
    end

    it "validates property major repairs date" do
      expect(validator).to receive(:validate_property_major_repairs)
    end

    it "validates property void date" do
      expect(validator).to receive(:validate_property_void_date)
    end

    it "validates benefits as proportion of income" do
      expect(validator).to receive(:validate_net_income_uc_proportion)
    end

    it "validates outstanding rent amount" do
      expect(validator).to receive(:validate_outstanding_rent_amount)
    end

    it "validates the rent period" do
      expect(validator).to receive(:validate_rent_period)
    end

    it "validates housing benefit rent shortfall" do
      expect(validator).to receive(:validate_tshortfall)
    end

    it "validates let type" do
      expect(validator).to receive(:validate_unitletas)
    end

    it "validates reason for vacancy" do
      expect(validator).to receive(:validate_rsnvac)
    end

    it "validates referral" do
      expect(validator).to receive(:validate_referral)
    end
  end

  describe "status" do
    let!(:empty_lettings_log) { FactoryBot.create(:lettings_log) }
    let!(:in_progress_lettings_log) { FactoryBot.create(:lettings_log, :in_progress) }
    let!(:completed_lettings_log) { FactoryBot.create(:lettings_log, :completed) }

    it "is set to not started for an empty lettings log" do
      expect(empty_lettings_log.not_started?).to be(true)
      expect(empty_lettings_log.in_progress?).to be(false)
      expect(empty_lettings_log.completed?).to be(false)
    end

    it "is set to in progress for a started lettings log" do
      expect(in_progress_lettings_log.in_progress?).to be(true)
      expect(in_progress_lettings_log.not_started?).to be(false)
      expect(in_progress_lettings_log.completed?).to be(false)
    end

    it "is set to completed for a completed lettings log" do
      expect(completed_lettings_log.in_progress?).to be(false)
      expect(completed_lettings_log.not_started?).to be(false)
      expect(completed_lettings_log.completed?).to be(true)
    end

    context "when only a subsection that is hidden in tasklist is not completed" do
      let(:household_characteristics_subsection) { completed_lettings_log.form.get_subsection("household_characteristics") }

      before do
        allow(household_characteristics_subsection).to receive(:displayed_in_tasklist?).and_return(false)
        completed_lettings_log.update!(tenancycode: nil)
      end

      it "is set to completed" do
        expect(completed_lettings_log.in_progress?).to be(false)
        expect(completed_lettings_log.not_started?).to be(false)
        expect(completed_lettings_log.completed?).to be(true)
      end
    end
  end

  describe "weekly_net_income" do
    let(:net_income) { 5000 }
    let(:lettings_log) { FactoryBot.build(:lettings_log, earnings: net_income) }

    it "returns input income if frequency is already weekly" do
      lettings_log.incfreq = 1
      expect(lettings_log.weekly_net_income).to eq(net_income)
    end

    it "calculates the correct weekly income from monthly income" do
      lettings_log.incfreq = 2
      expect(lettings_log.weekly_net_income).to eq(1154)
    end

    it "calculates the correct weekly income from yearly income" do
      lettings_log.incfreq = 3
      expect(lettings_log.weekly_net_income).to eq(96)
    end
  end

  describe "derived variables" do
    let!(:lettings_log) do
      described_class.create({
        managing_organisation: owning_organisation,
        owning_organisation:,
        created_by: created_by_user,
        postcode_full: "M1 1AE",
        ppostcode_full: "M2 2AE",
        startdate: Time.gm(2021, 10, 10),
        mrcdate: Time.gm(2021, 5, 4),
        voiddate: Time.gm(2021, 3, 3),
        net_income_known: 2,
        hhmemb: 7,
        rent_type: 4,
        hb: 1,
        hbrentshortfall: 1,
        created_at: Time.utc(2022, 2, 8, 16, 52, 15),
      })
    end

    it "correctly derives and saves partial and full major repairs date" do
      record_from_db = ActiveRecord::Base.connection.execute("select mrcdate from lettings_logs where id=#{lettings_log.id}").to_a[0]
      expect(record_from_db["mrcdate"].day).to eq(4)
      expect(record_from_db["mrcdate"].month).to eq(5)
      expect(record_from_db["mrcdate"].year).to eq(2021)
    end

    it "correctly derives and saves partial and full major property void date" do
      record_from_db = ActiveRecord::Base.connection.execute("select voiddate from lettings_logs where id=#{lettings_log.id}").to_a[0]
      expect(record_from_db["voiddate"].day).to eq(3)
      expect(record_from_db["voiddate"].month).to eq(3)
      expect(record_from_db["voiddate"].year).to eq(2021)
    end

    it "correctly derives and saves incref" do
      record_from_db = ActiveRecord::Base.connection.execute("select incref from lettings_logs where id=#{lettings_log.id}").to_a[0]
      expect(record_from_db["incref"]).to eq(1)
    end

    it "correctly derives and saves renttype" do
      record_from_db = ActiveRecord::Base.connection.execute("select renttype from lettings_logs where id=#{lettings_log.id}").to_a[0]
      expect(lettings_log.renttype).to eq(3)
      expect(record_from_db["renttype"]).to eq(3)
    end

    context "when deriving lettype" do
      context "when the owning organisation is a PRP" do
        before { lettings_log.owning_organisation.update!(provider_type: 2) }

        context "when the rent type is intermediate rent and supported housing" do
          it "correctly derives and saves lettype" do
            lettings_log.update!(rent_type: 4, needstype: 2)
            record_from_db = ActiveRecord::Base.connection.execute("select lettype from lettings_logs where id=#{lettings_log.id}").to_a[0]
            expect(lettings_log.lettype).to eq(10)
            expect(record_from_db["lettype"]).to eq(10)
          end
        end

        context "when the rent type is intermediate rent and general needs housing" do
          it "correctly derives and saves lettype" do
            lettings_log.update!(rent_type: 4, needstype: 1)
            record_from_db = ActiveRecord::Base.connection.execute("select lettype from lettings_logs where id=#{lettings_log.id}").to_a[0]
            expect(lettings_log.lettype).to eq(9)
            expect(record_from_db["lettype"]).to eq(9)
          end
        end

        context "when the rent type is affordable rent and supported housing" do
          it "correctly derives and saves lettype" do
            lettings_log.update!(rent_type: 2, needstype: 2)
            record_from_db = ActiveRecord::Base.connection.execute("select lettype from lettings_logs where id=#{lettings_log.id}").to_a[0]
            expect(lettings_log.lettype).to eq(6)
            expect(record_from_db["lettype"]).to eq(6)
          end
        end

        context "when the rent type is affordable rent and general needs housing" do
          it "correctly derives and saves lettype" do
            lettings_log.update!(rent_type: 2, needstype: 1)
            record_from_db = ActiveRecord::Base.connection.execute("select lettype from lettings_logs where id=#{lettings_log.id}").to_a[0]
            expect(lettings_log.lettype).to eq(5)
            expect(record_from_db["lettype"]).to eq(5)
          end
        end

        context "when the rent type is social rent and supported housing" do
          it "correctly derives and saves lettype" do
            lettings_log.update!(rent_type: 0, needstype: 2)
            record_from_db = ActiveRecord::Base.connection.execute("select lettype from lettings_logs where id=#{lettings_log.id}").to_a[0]
            expect(lettings_log.lettype).to eq(2)
            expect(record_from_db["lettype"]).to eq(2)
          end
        end

        context "when the rent type is social rent and general needs housing" do
          it "correctly derives and saves lettype" do
            lettings_log.update!(rent_type: 0, needstype: 1)
            record_from_db = ActiveRecord::Base.connection.execute("select lettype from lettings_logs where id=#{lettings_log.id}").to_a[0]
            expect(lettings_log.lettype).to eq(1)
            expect(record_from_db["lettype"]).to eq(1)
          end
        end

        context "when the tenant is not in receipt of applicable benefits" do
          it "correctly resets total shortfall" do
            lettings_log.update!(hbrentshortfall: 2, wtshortfall: 100, hb: 9)
            record_from_db = ActiveRecord::Base.connection.execute("select wtshortfall from lettings_logs where id=#{lettings_log.id}").to_a[0]
            expect(lettings_log.wtshortfall).to be_nil
            expect(record_from_db["wtshortfall"]).to be_nil
          end
        end

        context "when rent is paid bi-weekly" do
          it "correctly derives and saves weekly rent" do
            lettings_log.update!(brent: 100, period: 2)
            record_from_db = ActiveRecord::Base.connection.execute("select wrent from lettings_logs where id=#{lettings_log.id}").to_a[0]
            expect(lettings_log.wrent).to eq(50.0)
            expect(record_from_db["wrent"]).to eq(50.0)
          end

          it "correctly derives and saves weekly service charge" do
            lettings_log.update!(scharge: 70, period: 2)
            record_from_db = ActiveRecord::Base.connection.execute("select wscharge from lettings_logs where id=#{lettings_log.id}").to_a[0]
            expect(lettings_log.wscharge).to eq(35.0)
            expect(record_from_db["wscharge"]).to eq(35.0)
          end

          it "correctly derives and saves weekly personal service charge" do
            lettings_log.update!(pscharge: 60, period: 2)
            record_from_db = ActiveRecord::Base.connection.execute("select wpschrge from lettings_logs where id=#{lettings_log.id}").to_a[0]
            expect(lettings_log.wpschrge).to eq(30.0)
            expect(record_from_db["wpschrge"]).to eq(30.0)
          end

          it "correctly derives and saves weekly support charge" do
            lettings_log.update!(supcharg: 80, period: 2)
            record_from_db = ActiveRecord::Base.connection.execute("select wsupchrg from lettings_logs where id=#{lettings_log.id}").to_a[0]
            expect(lettings_log.wsupchrg).to eq(40.0)
            expect(record_from_db["wsupchrg"]).to eq(40.0)
          end

          it "correctly derives and saves weekly total charge" do
            lettings_log.update!(tcharge: 100, period: 2)
            record_from_db = ActiveRecord::Base.connection.execute("select wtcharge from lettings_logs where id=#{lettings_log.id}").to_a[0]
            expect(lettings_log.wtcharge).to eq(50.0)
            expect(record_from_db["wtcharge"]).to eq(50.0)
          end

          context "when the tenant has an outstanding amount after benefits" do
            context "when tenant is in receipt of housing benefit" do
              it "correctly derives and saves weekly total shortfall" do
                lettings_log.update!(hbrentshortfall: 1, tshortfall: 100, period: 2, hb: 1)
                record_from_db = ActiveRecord::Base.connection.execute("select wtshortfall from lettings_logs where id=#{lettings_log.id}").to_a[0]
                expect(lettings_log.wtshortfall).to eq(50.0)
                expect(record_from_db["wtshortfall"]).to eq(50.0)
              end
            end

            context "when tenant is in receipt of universal credit with housing element exc. housing benefit" do
              it "correctly derives and saves weekly total shortfall" do
                lettings_log.update!(hbrentshortfall: 1, tshortfall: 100, period: 2, hb: 6)
                record_from_db = ActiveRecord::Base.connection.execute("select wtshortfall from lettings_logs where id=#{lettings_log.id}").to_a[0]
                expect(lettings_log.wtshortfall).to eq(50.0)
                expect(record_from_db["wtshortfall"]).to eq(50.0)
              end
            end

            context "when tenant is in receipt of housing benefit and universal credit" do
              it "correctly derives and saves weekly total shortfall" do
                lettings_log.update!(hbrentshortfall: 1, tshortfall: 100, period: 2, hb: 8)
                record_from_db = ActiveRecord::Base.connection.execute("select wtshortfall from lettings_logs where id=#{lettings_log.id}").to_a[0]
                expect(lettings_log.wtshortfall).to eq(50.0)
                expect(record_from_db["wtshortfall"]).to eq(50.0)
              end
            end
          end

          it "correctly derives floats" do
            lettings_log.update!(supcharg: 60.12, pscharge: 50.13, scharge: 60.98, brent: 60.97, period: 2)
            record_from_db = ActiveRecord::Base.connection.execute("select wtcharge, wsupchrg, wpschrge, wscharge, wrent from lettings_logs where id=#{lettings_log.id}").to_a[0]
            expect(lettings_log.wsupchrg).to eq(30.06)
            expect(lettings_log.wpschrge).to eq(25.06)
            expect(lettings_log.wscharge).to eq(30.49)
            expect(lettings_log.wrent).to eq(30.49)
            expect(lettings_log.wtcharge).to eq(116.1)
            expect(record_from_db["wsupchrg"]).to eq(30.06)
            expect(record_from_db["wpschrge"]).to eq(25.06)
            expect(record_from_db["wscharge"]).to eq(30.49)
            expect(record_from_db["wrent"]).to eq(30.49)
            expect(record_from_db["wtcharge"]).to eq(116.1)
          end
        end

        context "when rent is paid every 4 weeks" do
          it "correctly derives and saves weekly rent" do
            lettings_log.update!(brent: 120, period: 3)
            record_from_db = ActiveRecord::Base.connection.execute("select wrent from lettings_logs where id=#{lettings_log.id}").to_a[0]
            expect(lettings_log.wrent).to eq(30.0)
            expect(record_from_db["wrent"]).to eq(30.0)
          end

          it "correctly derives and saves weekly service charge" do
            lettings_log.update!(scharge: 120, period: 3)
            record_from_db = ActiveRecord::Base.connection.execute("select wscharge from lettings_logs where id=#{lettings_log.id}").to_a[0]
            expect(lettings_log.wscharge).to eq(30.0)
            expect(record_from_db["wscharge"]).to eq(30.0)
          end

          it "correctly derives and saves weekly personal service charge" do
            lettings_log.update!(pscharge: 120, period: 3)
            record_from_db = ActiveRecord::Base.connection.execute("select wpschrge from lettings_logs where id=#{lettings_log.id}").to_a[0]
            expect(lettings_log.wpschrge).to eq(30.0)
            expect(record_from_db["wpschrge"]).to eq(30.0)
          end

          it "correctly derives and saves weekly support charge" do
            lettings_log.update!(supcharg: 120, period: 3)
            record_from_db = ActiveRecord::Base.connection.execute("select wsupchrg from lettings_logs where id=#{lettings_log.id}").to_a[0]
            expect(lettings_log.wsupchrg).to eq(30.0)
            expect(record_from_db["wsupchrg"]).to eq(30.0)
          end

          it "correctly derives and saves weekly total charge" do
            lettings_log.update!(tcharge: 120, period: 3)
            record_from_db = ActiveRecord::Base.connection.execute("select wtcharge from lettings_logs where id=#{lettings_log.id}").to_a[0]
            expect(lettings_log.wtcharge).to eq(30.0)
            expect(record_from_db["wtcharge"]).to eq(30.0)
          end

          context "when the tenant has an outstanding amount after benefits" do
            context "when tenant is in receipt of housing benefit" do
              it "correctly derives and saves weekly total shortfall" do
                lettings_log.update!(hbrentshortfall: 1, tshortfall: 120, period: 3, hb: 1)
                record_from_db = ActiveRecord::Base.connection.execute("select wtshortfall from lettings_logs where id=#{lettings_log.id}").to_a[0]
                expect(lettings_log.wtshortfall).to eq(30.0)
                expect(record_from_db["wtshortfall"]).to eq(30.0)
              end
            end

            context "when tenant is in receipt of universal credit with housing element exc. housing benefit" do
              it "correctly derives and saves weekly total shortfall" do
                lettings_log.update!(hbrentshortfall: 1, tshortfall: 120, period: 3, hb: 6)
                record_from_db = ActiveRecord::Base.connection.execute("select wtshortfall from lettings_logs where id=#{lettings_log.id}").to_a[0]
                expect(lettings_log.wtshortfall).to eq(30.0)
                expect(record_from_db["wtshortfall"]).to eq(30.0)
              end
            end

            context "when tenant is in receipt of housing benefit and universal credit" do
              it "correctly derives and saves weekly total shortfall" do
                lettings_log.update!(hbrentshortfall: 1, tshortfall: 120, period: 3, hb: 8)
                record_from_db = ActiveRecord::Base.connection.execute("select wtshortfall from lettings_logs where id=#{lettings_log.id}").to_a[0]
                expect(lettings_log.wtshortfall).to eq(30.0)
                expect(record_from_db["wtshortfall"]).to eq(30.0)
              end
            end
          end

          it "correctly derives floats" do
            lettings_log.update!(supcharg: 100.12, pscharge: 100.13, scharge: 100.98, brent: 100.97, period: 3)
            record_from_db = ActiveRecord::Base.connection.execute("select wtcharge, wsupchrg, wpschrge, wscharge, wrent from lettings_logs where id=#{lettings_log.id}").to_a[0]
            expect(lettings_log.wsupchrg).to eq(25.03)
            expect(lettings_log.wpschrge).to eq(25.03)
            expect(lettings_log.wscharge).to eq(25.24)
            expect(lettings_log.wrent).to eq(25.24)
            expect(lettings_log.wtcharge).to eq(100.55)
            expect(record_from_db["wsupchrg"]).to eq(25.03)
            expect(record_from_db["wpschrge"]).to eq(25.03)
            expect(record_from_db["wscharge"]).to eq(25.24)
            expect(record_from_db["wrent"]).to eq(25.24)
            expect(record_from_db["wtcharge"]).to eq(100.55)
          end
        end

        context "when rent is paid every calendar month" do
          it "correctly derives and saves weekly rent" do
            lettings_log.update!(brent: 130, period: 4)
            record_from_db = ActiveRecord::Base.connection.execute("select wrent from lettings_logs where id=#{lettings_log.id}").to_a[0]
            expect(lettings_log.wrent).to eq(30.0)
            expect(record_from_db["wrent"]).to eq(30.0)
          end

          it "correctly derives and saves weekly service charge" do
            lettings_log.update!(scharge: 130, period: 4)
            record_from_db = ActiveRecord::Base.connection.execute("select wscharge from lettings_logs where id=#{lettings_log.id}").to_a[0]
            expect(lettings_log.wscharge).to eq(30.0)
            expect(record_from_db["wscharge"]).to eq(30.0)
          end

          it "correctly derives and saves weekly personal service charge" do
            lettings_log.update!(pscharge: 130, period: 4)
            record_from_db = ActiveRecord::Base.connection.execute("select wpschrge from lettings_logs where id=#{lettings_log.id}").to_a[0]
            expect(lettings_log.wpschrge).to eq(30.0)
            expect(record_from_db["wpschrge"]).to eq(30.0)
          end

          it "correctly derives and saves weekly support charge" do
            lettings_log.update!(supcharg: 130, period: 4)
            record_from_db = ActiveRecord::Base.connection.execute("select wsupchrg from lettings_logs where id=#{lettings_log.id}").to_a[0]
            expect(lettings_log.wsupchrg).to eq(30.0)
            expect(record_from_db["wsupchrg"]).to eq(30.0)
          end

          it "correctly derives and saves weekly total charge" do
            lettings_log.update!(tcharge: 130, period: 4)
            record_from_db = ActiveRecord::Base.connection.execute("select wtcharge from lettings_logs where id=#{lettings_log.id}").to_a[0]
            expect(lettings_log.wtcharge).to eq(30.0)
            expect(record_from_db["wtcharge"]).to eq(30.0)
          end

          context "when the tenant has an outstanding amount after benefits" do
            context "when tenant is in receipt of housing benefit" do
              it "correctly derives and saves weekly total shortfall" do
                lettings_log.update!(hbrentshortfall: 1, tshortfall: 130, period: 4, hb: 1)
                record_from_db = ActiveRecord::Base.connection.execute("select wtshortfall from lettings_logs where id=#{lettings_log.id}").to_a[0]
                expect(lettings_log.wtshortfall).to eq(30.0)
                expect(record_from_db["wtshortfall"]).to eq(30.0)
              end
            end

            context "when tenant is in receipt of universal credit with housing element exc. housing benefit" do
              it "correctly derives and saves weekly total shortfall" do
                lettings_log.update!(hbrentshortfall: 1, tshortfall: 130, period: 4, hb: 6)
                record_from_db = ActiveRecord::Base.connection.execute("select wtshortfall from lettings_logs where id=#{lettings_log.id}").to_a[0]
                expect(lettings_log.wtshortfall).to eq(30.0)
                expect(record_from_db["wtshortfall"]).to eq(30.0)
              end
            end

            context "when tenant is in receipt of housing benefit and universal credit" do
              it "correctly derives and saves weekly total shortfall" do
                lettings_log.update!(hbrentshortfall: 1, tshortfall: 130, period: 4, hb: 8)
                record_from_db = ActiveRecord::Base.connection.execute("select wtshortfall from lettings_logs where id=#{lettings_log.id}").to_a[0]
                expect(lettings_log.wtshortfall).to eq(30.0)
                expect(record_from_db["wtshortfall"]).to eq(30.0)
              end
            end
          end

          it "correctly derives floats" do
            lettings_log.update!(supcharg: 100.12, pscharge: 100.13, scharge: 100.98, brent: 100.97, period: 4)
            record_from_db = ActiveRecord::Base.connection.execute("select wtcharge, wsupchrg, wpschrge, wscharge, wrent from lettings_logs where id=#{lettings_log.id}").to_a[0]
            expect(lettings_log.wsupchrg).to eq(23.10)
            expect(lettings_log.wpschrge).to eq(23.11)
            expect(lettings_log.wscharge).to eq(23.30)
            expect(lettings_log.wrent).to eq(23.30)
            expect(lettings_log.wtcharge).to eq(92.82)
            expect(record_from_db["wsupchrg"]).to eq(23.10)
            expect(record_from_db["wpschrge"]).to eq(23.11)
            expect(record_from_db["wscharge"]).to eq(23.30)
            expect(record_from_db["wrent"]).to eq(23.30)
            expect(record_from_db["wtcharge"]).to eq(92.82)
          end
        end

        context "when rent is paid weekly for 50 weeks" do
          it "correctly derives and saves weekly rent" do
            lettings_log.update!(brent: 130, period: 5)
            record_from_db = ActiveRecord::Base.connection.execute("select wrent from lettings_logs where id=#{lettings_log.id}").to_a[0]
            expect(lettings_log.wrent).to eq(125.0)
            expect(record_from_db["wrent"]).to eq(125.0)
          end

          it "correctly derives and saves weekly service charge" do
            lettings_log.update!(scharge: 20, period: 5)
            record_from_db = ActiveRecord::Base.connection.execute("select wscharge from lettings_logs where id=#{lettings_log.id}").to_a[0]
            expect(lettings_log.wscharge).to eq(19.23)
            expect(record_from_db["wscharge"]).to eq(19.23)
          end

          it "correctly derives and saves weekly personal service charge" do
            lettings_log.update!(pscharge: 20, period: 5)
            record_from_db = ActiveRecord::Base.connection.execute("select wpschrge from lettings_logs where id=#{lettings_log.id}").to_a[0]
            expect(lettings_log.wpschrge).to eq(19.23)
            expect(record_from_db["wpschrge"]).to eq(19.23)
          end

          it "correctly derives and saves weekly support charge" do
            lettings_log.update!(supcharg: 20, period: 5)
            record_from_db = ActiveRecord::Base.connection.execute("select wsupchrg from lettings_logs where id=#{lettings_log.id}").to_a[0]
            expect(lettings_log.wsupchrg).to eq(19.23)
            expect(record_from_db["wsupchrg"]).to eq(19.23)
          end

          it "correctly derives and saves weekly total charge" do
            lettings_log.update!(tcharge: 130, period: 5)
            record_from_db = ActiveRecord::Base.connection.execute("select wtcharge from lettings_logs where id=#{lettings_log.id}").to_a[0]
            expect(lettings_log.wtcharge).to eq(125.0)
            expect(record_from_db["wtcharge"]).to eq(125.0)
          end

          context "when the tenant has an outstanding amount after benefits" do
            context "when tenant is in receipt of housing benefit" do
              it "correctly derives and saves weekly total shortfall" do
                lettings_log.update!(hbrentshortfall: 1, tshortfall: 130, period: 5, hb: 1)
                record_from_db = ActiveRecord::Base.connection.execute("select wtshortfall from lettings_logs where id=#{lettings_log.id}").to_a[0]
                expect(lettings_log.wtshortfall).to eq(125.0)
                expect(record_from_db["wtshortfall"]).to eq(125.0)
              end
            end

            context "when tenant is in receipt of universal credit with housing element exc. housing benefit" do
              it "correctly derives and saves weekly total shortfall" do
                lettings_log.update!(hbrentshortfall: 1, tshortfall: 130, period: 5, hb: 6)
                record_from_db = ActiveRecord::Base.connection.execute("select wtshortfall from lettings_logs where id=#{lettings_log.id}").to_a[0]
                expect(lettings_log.wtshortfall).to eq(125.0)
                expect(record_from_db["wtshortfall"]).to eq(125.0)
              end
            end

            context "when tenant is in receipt of housing benefit and universal credit" do
              it "correctly derives and saves weekly total shortfall" do
                lettings_log.update!(hbrentshortfall: 1, tshortfall: 130, period: 5, hb: 8)
                record_from_db = ActiveRecord::Base.connection.execute("select wtshortfall from lettings_logs where id=#{lettings_log.id}").to_a[0]
                expect(lettings_log.wtshortfall).to eq(125.0)
                expect(record_from_db["wtshortfall"]).to eq(125.0)
              end
            end
          end

          it "correctly derives floats" do
            lettings_log.update!(supcharg: 20.12, pscharge: 20.13, scharge: 20.98, brent: 100.97, period: 5)
            record_from_db = ActiveRecord::Base.connection.execute("select wtcharge, wsupchrg, wpschrge, wscharge, wrent from lettings_logs where id=#{lettings_log.id}").to_a[0]
            expect(lettings_log.wsupchrg).to eq(19.35)
            expect(lettings_log.wpschrge).to eq(19.36)
            expect(lettings_log.wscharge).to eq(20.17)
            expect(lettings_log.wrent).to eq(97.09)
            expect(lettings_log.wtcharge).to eq(155.96)
            expect(record_from_db["wsupchrg"]).to eq(19.35)
            expect(record_from_db["wpschrge"]).to eq(19.36)
            expect(record_from_db["wscharge"]).to eq(20.17)
            expect(record_from_db["wrent"]).to eq(97.09)
            expect(record_from_db["wtcharge"]).to eq(155.96)
          end
        end

        context "when rent is paid weekly for 49 weeks" do
          it "correctly derives and saves weekly rent" do
            lettings_log.update!(brent: 130, period: 6)
            record_from_db = ActiveRecord::Base.connection.execute("select wrent from lettings_logs where id=#{lettings_log.id}").to_a[0]
            expect(lettings_log.wrent).to eq(122.5)
            expect(record_from_db["wrent"]).to eq(122.5)
          end

          it "correctly derives and saves weekly service charge" do
            lettings_log.update!(scharge: 30, period: 6)
            record_from_db = ActiveRecord::Base.connection.execute("select wscharge from lettings_logs where id=#{lettings_log.id}").to_a[0]
            expect(lettings_log.wscharge).to eq(28.27)
            expect(record_from_db["wscharge"]).to eq(28.27)
          end

          it "correctly derives and saves weekly personal service charge" do
            lettings_log.update!(pscharge: 30, period: 6)
            record_from_db = ActiveRecord::Base.connection.execute("select wpschrge from lettings_logs where id=#{lettings_log.id}").to_a[0]
            expect(lettings_log.wpschrge).to eq(28.27)
            expect(record_from_db["wpschrge"]).to eq(28.27)
          end

          it "correctly derives and saves weekly support charge" do
            lettings_log.update!(supcharg: 30, period: 6)
            record_from_db = ActiveRecord::Base.connection.execute("select wsupchrg from lettings_logs where id=#{lettings_log.id}").to_a[0]
            expect(lettings_log.wsupchrg).to eq(28.27)
            expect(record_from_db["wsupchrg"]).to eq(28.27)
          end

          it "correctly derives and saves weekly total charge" do
            lettings_log.update!(tcharge: 130, period: 6)
            record_from_db = ActiveRecord::Base.connection.execute("select wtcharge from lettings_logs where id=#{lettings_log.id}").to_a[0]
            expect(lettings_log.wtcharge).to eq(122.5)
            expect(record_from_db["wtcharge"]).to eq(122.5)
          end

          context "when the tenant has an outstanding amount after benefits" do
            context "when tenant is in receipt of housing benefit" do
              it "correctly derives and saves weekly total shortfall" do
                lettings_log.update!(hbrentshortfall: 1, tshortfall: 130, period: 6, hb: 1)
                record_from_db = ActiveRecord::Base.connection.execute("select wtshortfall from lettings_logs where id=#{lettings_log.id}").to_a[0]
                expect(lettings_log.wtshortfall).to eq(122.5)
                expect(record_from_db["wtshortfall"]).to eq(122.5)
              end
            end

            context "when tenant is in receipt of universal credit with housing element exc. housing benefit" do
              it "correctly derives and saves weekly total shortfall" do
                lettings_log.update!(hbrentshortfall: 1, tshortfall: 130, period: 6, hb: 6)
                record_from_db = ActiveRecord::Base.connection.execute("select wtshortfall from lettings_logs where id=#{lettings_log.id}").to_a[0]
                expect(lettings_log.wtshortfall).to eq(122.5)
                expect(record_from_db["wtshortfall"]).to eq(122.5)
              end
            end

            context "when tenant is in receipt of housing benefit and universal credit" do
              it "correctly derives and saves weekly total shortfall" do
                lettings_log.update!(hbrentshortfall: 1, tshortfall: 130, period: 6, hb: 8)
                lettings_log.reload
                expect(lettings_log.wtshortfall).to eq(122.5)
              end
            end
          end

          it "correctly derives floats" do
            lettings_log.update!(supcharg: 30.12, pscharge: 30.13, scharge: 30.98, brent: 100.97, period: 6)
            record_from_db = ActiveRecord::Base.connection.execute("select wtcharge, wsupchrg, wpschrge, wscharge, wrent from lettings_logs where id=#{lettings_log.id}").to_a[0]
            expect(lettings_log.wsupchrg).to eq(28.38)
            expect(lettings_log.wpschrge).to eq(28.39)
            expect(lettings_log.wscharge).to eq(29.19)
            expect(lettings_log.wrent).to eq(95.14)
            expect(lettings_log.wtcharge).to eq(181.11)
            expect(record_from_db["wsupchrg"]).to eq(28.38)
            expect(record_from_db["wpschrge"]).to eq(28.39)
            expect(record_from_db["wscharge"]).to eq(29.19)
            expect(record_from_db["wrent"]).to eq(95.14)
            expect(record_from_db["wtcharge"]).to eq(181.11)
          end
        end

        context "when rent is paid weekly for 48 weeks" do
          it "correctly derives and saves weekly rent" do
            lettings_log.update!(brent: 130, period: 7)
            record_from_db = ActiveRecord::Base.connection.execute("select wrent from lettings_logs where id=#{lettings_log.id}").to_a[0]
            expect(lettings_log.wrent).to eq(120.0)
            expect(record_from_db["wrent"]).to eq(120.0)
          end

          it "correctly derives and saves weekly service charge" do
            lettings_log.update!(scharge: 30, period: 7)
            record_from_db = ActiveRecord::Base.connection.execute("select wscharge from lettings_logs where id=#{lettings_log.id}").to_a[0]
            expect(lettings_log.wscharge).to eq(27.69)
            expect(record_from_db["wscharge"]).to eq(27.69)
          end

          it "correctly derives and saves weekly personal service charge" do
            lettings_log.update!(pscharge: 30, period: 7)
            record_from_db = ActiveRecord::Base.connection.execute("select wpschrge from lettings_logs where id=#{lettings_log.id}").to_a[0]
            expect(lettings_log.wpschrge).to eq(27.69)
            expect(record_from_db["wpschrge"]).to eq(27.69)
          end

          it "correctly derives and saves weekly support charge" do
            lettings_log.update!(supcharg: 30, period: 7)
            record_from_db = ActiveRecord::Base.connection.execute("select wsupchrg from lettings_logs where id=#{lettings_log.id}").to_a[0]
            expect(lettings_log.wsupchrg).to eq(27.69)
            expect(record_from_db["wsupchrg"]).to eq(27.69)
          end

          it "correctly derives and saves weekly total charge" do
            lettings_log.update!(tcharge: 130, period: 7)
            record_from_db = ActiveRecord::Base.connection.execute("select wtcharge from lettings_logs where id=#{lettings_log.id}").to_a[0]
            expect(lettings_log.wtcharge).to eq(120.0)
            expect(record_from_db["wtcharge"]).to eq(120.0)
          end

          context "when the tenant has an outstanding amount after benefits" do
            context "when tenant is in receipt of housing benefit" do
              it "correctly derives and saves weekly total shortfall" do
                lettings_log.update!(hbrentshortfall: 1, tshortfall: 130, period: 7, hb: 1)
                record_from_db = ActiveRecord::Base.connection.execute("select wtshortfall from lettings_logs where id=#{lettings_log.id}").to_a[0]
                expect(lettings_log.wtshortfall).to eq(120.0)
                expect(record_from_db["wtshortfall"]).to eq(120.0)
              end
            end

            context "when tenant is in receipt of universal credit with housing element exc. housing benefit" do
              it "correctly derives and saves weekly total shortfall" do
                lettings_log.update!(hbrentshortfall: 1, tshortfall: 130, period: 7, hb: 6)
                record_from_db = ActiveRecord::Base.connection.execute("select wtshortfall from lettings_logs where id=#{lettings_log.id}").to_a[0]
                expect(lettings_log.wtshortfall).to eq(120.0)
                expect(record_from_db["wtshortfall"]).to eq(120.0)
              end
            end

            context "when tenant is in receipt of housing benefit and universal credit" do
              it "correctly derives and saves weekly total shortfall" do
                lettings_log.update!(hbrentshortfall: 1, tshortfall: 130, period: 7, hb: 8)
                record_from_db = ActiveRecord::Base.connection.execute("select wtshortfall from lettings_logs where id=#{lettings_log.id}").to_a[0]
                expect(lettings_log.wtshortfall).to eq(120.0)
                expect(record_from_db["wtshortfall"]).to eq(120.0)
              end
            end
          end

          it "correctly derives floats" do
            lettings_log.update!(supcharg: 30.12, pscharge: 30.13, scharge: 30.98, brent: 100.97, period: 7)
            record_from_db = ActiveRecord::Base.connection.execute("select wtcharge, wsupchrg, wpschrge, wscharge, wrent from lettings_logs where id=#{lettings_log.id}").to_a[0]
            expect(lettings_log.wsupchrg).to eq(27.8)
            expect(lettings_log.wpschrge).to eq(27.81)
            expect(lettings_log.wscharge).to eq(28.6)
            expect(lettings_log.wrent).to eq(93.20)
            expect(lettings_log.wtcharge).to eq(177.42)
            expect(record_from_db["wsupchrg"]).to eq(27.8)
            expect(record_from_db["wpschrge"]).to eq(27.81)
            expect(record_from_db["wscharge"]).to eq(28.6)
            expect(record_from_db["wrent"]).to eq(93.20)
            expect(record_from_db["wtcharge"]).to eq(177.42)
          end
        end

        context "when rent is paid weekly for 47 weeks" do
          it "correctly derives and saves weekly rent" do
            lettings_log.update!(brent: 130, period: 8)
            record_from_db = ActiveRecord::Base.connection.execute("select wrent from lettings_logs where id=#{lettings_log.id}").to_a[0]
            expect(lettings_log.wrent).to eq(117.5)
            expect(record_from_db["wrent"]).to eq(117.5)
          end

          it "correctly derives and saves weekly service charge" do
            lettings_log.update!(scharge: 30, period: 8)
            record_from_db = ActiveRecord::Base.connection.execute("select wscharge from lettings_logs where id=#{lettings_log.id}").to_a[0]
            expect(lettings_log.wscharge).to eq(27.12)
            expect(record_from_db["wscharge"]).to eq(27.12)
          end

          it "correctly derives and saves weekly personal service charge" do
            lettings_log.update!(pscharge: 30, period: 8)
            record_from_db = ActiveRecord::Base.connection.execute("select wpschrge from lettings_logs where id=#{lettings_log.id}").to_a[0]
            expect(lettings_log.wpschrge).to eq(27.12)
            expect(record_from_db["wpschrge"]).to eq(27.12)
          end

          it "correctly derives and saves weekly support charge" do
            lettings_log.update!(supcharg: 30, period: 8)
            record_from_db = ActiveRecord::Base.connection.execute("select wsupchrg from lettings_logs where id=#{lettings_log.id}").to_a[0]
            expect(lettings_log.wsupchrg).to eq(27.12)
            expect(record_from_db["wsupchrg"]).to eq(27.12)
          end

          it "correctly derives and saves weekly total charge" do
            lettings_log.update!(tcharge: 130, period: 8)
            record_from_db = ActiveRecord::Base.connection.execute("select wtcharge from lettings_logs where id=#{lettings_log.id}").to_a[0]
            expect(lettings_log.wtcharge).to eq(117.5)
            expect(record_from_db["wtcharge"]).to eq(117.5)
          end

          context "when the tenant has an outstanding amount after benefits" do
            context "when tenant is in receipt of housing benefit" do
              it "correctly derives and saves weekly total shortfall" do
                lettings_log.update!(hbrentshortfall: 1, tshortfall: 130, period: 8, hb: 1)
                record_from_db = ActiveRecord::Base.connection.execute("select wtshortfall from lettings_logs where id=#{lettings_log.id}").to_a[0]
                expect(lettings_log.wtshortfall).to eq(117.5)
                expect(record_from_db["wtshortfall"]).to eq(117.5)
              end
            end

            context "when tenant is in receipt of universal credit with housing element exc. housing benefit" do
              it "correctly derives and saves weekly total shortfall" do
                lettings_log.update!(hbrentshortfall: 1, tshortfall: 130, period: 8, hb: 6)
                record_from_db = ActiveRecord::Base.connection.execute("select wtshortfall from lettings_logs where id=#{lettings_log.id}").to_a[0]
                expect(lettings_log.wtshortfall).to eq(117.5)
                expect(record_from_db["wtshortfall"]).to eq(117.5)
              end
            end

            context "when tenant is in receipt of housing benefit and universal credit" do
              it "correctly derives and saves weekly total shortfall" do
                lettings_log.update!(hbrentshortfall: 1, tshortfall: 130, period: 8, hb: 8)
                record_from_db = ActiveRecord::Base.connection.execute("select wtshortfall from lettings_logs where id=#{lettings_log.id}").to_a[0]
                expect(lettings_log.wtshortfall).to eq(117.5)
                expect(record_from_db["wtshortfall"]).to eq(117.5)
              end
            end
          end

          it "correctly derives floats" do
            lettings_log.update!(supcharg: 30.12, pscharge: 30.13, scharge: 30.98, brent: 100.97, period: 8)
            record_from_db = ActiveRecord::Base.connection.execute("select wtcharge, wsupchrg, wpschrge, wscharge, wrent from lettings_logs where id=#{lettings_log.id}").to_a[0]
            expect(lettings_log.wsupchrg).to eq(27.22)
            expect(lettings_log.wpschrge).to eq(27.23)
            expect(lettings_log.wscharge).to eq(28)
            expect(lettings_log.wrent).to eq(91.26)
            expect(lettings_log.wtcharge).to eq(173.72)
            expect(record_from_db["wsupchrg"]).to eq(27.22)
            expect(record_from_db["wpschrge"]).to eq(27.23)
            expect(record_from_db["wscharge"]).to eq(28)
            expect(record_from_db["wrent"]).to eq(91.26)
            expect(record_from_db["wtcharge"]).to eq(173.72)
          end
        end

        context "when rent is paid weekly for 46 weeks" do
          it "correctly derives and saves weekly rent" do
            lettings_log.update!(brent: 130, period: 9)
            record_from_db = ActiveRecord::Base.connection.execute("select wrent from lettings_logs where id=#{lettings_log.id}").to_a[0]
            expect(lettings_log.wrent).to eq(115.0)
            expect(record_from_db["wrent"]).to eq(115.0)
          end

          it "correctly derives and saves weekly service charge" do
            lettings_log.update!(scharge: 30, period: 9)
            record_from_db = ActiveRecord::Base.connection.execute("select wscharge from lettings_logs where id=#{lettings_log.id}").to_a[0]
            expect(lettings_log.wscharge).to eq(26.54)
            expect(record_from_db["wscharge"]).to eq(26.54)
          end

          it "correctly derives and saves weekly personal service charge" do
            lettings_log.update!(pscharge: 30, period: 9)
            record_from_db = ActiveRecord::Base.connection.execute("select wpschrge from lettings_logs where id=#{lettings_log.id}").to_a[0]
            expect(lettings_log.wpschrge).to eq(26.54)
            expect(record_from_db["wpschrge"]).to eq(26.54)
          end

          it "correctly derives and saves weekly support charge" do
            lettings_log.update!(supcharg: 30, period: 9)
            record_from_db = ActiveRecord::Base.connection.execute("select wsupchrg from lettings_logs where id=#{lettings_log.id}").to_a[0]
            expect(lettings_log.wsupchrg).to eq(26.54)
            expect(record_from_db["wsupchrg"]).to eq(26.54)
          end

          it "correctly derives and saves weekly total charge" do
            lettings_log.update!(tcharge: 130, period: 9)
            record_from_db = ActiveRecord::Base.connection.execute("select wtcharge from lettings_logs where id=#{lettings_log.id}").to_a[0]
            expect(lettings_log.wtcharge).to eq(115.0)
            expect(record_from_db["wtcharge"]).to eq(115.0)
          end

          context "when the tenant has an outstanding amount after benefits" do
            context "when tenant is in receipt of housing benefit" do
              it "correctly derives and saves weekly total shortfall" do
                lettings_log.update!(hbrentshortfall: 1, tshortfall: 130, period: 9, hb: 1)
                record_from_db = ActiveRecord::Base.connection.execute("select wtshortfall from lettings_logs where id=#{lettings_log.id}").to_a[0]
                expect(lettings_log.wtshortfall).to eq(115.0)
                expect(record_from_db["wtshortfall"]).to eq(115.0)
              end
            end

            context "when tenant is in receipt of universal credit with housing element exc. housing benefit" do
              it "correctly derives and saves weekly total shortfall" do
                lettings_log.update!(hbrentshortfall: 1, tshortfall: 130, period: 9, hb: 6)
                record_from_db = ActiveRecord::Base.connection.execute("select wtshortfall from lettings_logs where id=#{lettings_log.id}").to_a[0]
                expect(lettings_log.wtshortfall).to eq(115.0)
                expect(record_from_db["wtshortfall"]).to eq(115.0)
              end
            end

            context "when tenant is in receipt of housing benefit and universal credit" do
              it "correctly derives and saves weekly total shortfall" do
                lettings_log.update!(hbrentshortfall: 1, tshortfall: 130, period: 9, hb: 8)
                record_from_db = ActiveRecord::Base.connection.execute("select wtshortfall from lettings_logs where id=#{lettings_log.id}").to_a[0]
                expect(lettings_log.wtshortfall).to eq(115.0)
                expect(record_from_db["wtshortfall"]).to eq(115.0)
              end
            end
          end

          it "correctly derives floats" do
            lettings_log.update!(supcharg: 30.12, pscharge: 30.13, scharge: 30.98, brent: 100.97, period: 9)
            record_from_db = ActiveRecord::Base.connection.execute("select wtcharge, wsupchrg, wpschrge, wscharge, wrent from lettings_logs where id=#{lettings_log.id}").to_a[0]
            expect(lettings_log.wsupchrg).to eq(26.64)
            expect(lettings_log.wpschrge).to eq(26.65)
            expect(lettings_log.wscharge).to eq(27.41)
            expect(lettings_log.wrent).to eq(89.32)
            expect(lettings_log.wtcharge).to eq(170.02)
            expect(record_from_db["wsupchrg"]).to eq(26.64)
            expect(record_from_db["wpschrge"]).to eq(26.65)
            expect(record_from_db["wscharge"]).to eq(27.41)
            expect(record_from_db["wrent"]).to eq(89.32)
            expect(record_from_db["wtcharge"]).to eq(170.02)
          end
        end

        context "when rent is paid weekly for 52 weeks" do
          it "correctly derives and saves weekly rent" do
            lettings_log.update!(brent: 130, period: 1)
            record_from_db = ActiveRecord::Base.connection.execute("select wrent from lettings_logs where id=#{lettings_log.id}").to_a[0]
            expect(lettings_log.wrent).to eq(130.0)
            expect(record_from_db["wrent"]).to eq(130.0)
          end

          it "correctly derives and saves weekly service charge" do
            lettings_log.update!(scharge: 30, period: 1)
            record_from_db = ActiveRecord::Base.connection.execute("select wscharge from lettings_logs where id=#{lettings_log.id}").to_a[0]
            expect(lettings_log.wscharge).to eq(30.0)
            expect(record_from_db["wscharge"]).to eq(30.0)
          end

          it "correctly derives and saves weekly personal service charge" do
            lettings_log.update!(pscharge: 30, period: 1)
            record_from_db = ActiveRecord::Base.connection.execute("select wpschrge from lettings_logs where id=#{lettings_log.id}").to_a[0]
            expect(lettings_log.wpschrge).to eq(30.0)
            expect(record_from_db["wpschrge"]).to eq(30.0)
          end

          it "correctly derives and saves weekly support charge" do
            lettings_log.update!(supcharg: 30, period: 1)
            record_from_db = ActiveRecord::Base.connection.execute("select wsupchrg from lettings_logs where id=#{lettings_log.id}").to_a[0]
            expect(lettings_log.wsupchrg).to eq(30.0)
            expect(record_from_db["wsupchrg"]).to eq(30.0)
          end

          it "correctly derives and saves weekly total charge" do
            lettings_log.update!(tcharge: 30, period: 1)
            record_from_db = ActiveRecord::Base.connection.execute("select wtcharge from lettings_logs where id=#{lettings_log.id}").to_a[0]
            expect(lettings_log.wtcharge).to eq(30.0)
            expect(record_from_db["wtcharge"]).to eq(30.0)
          end

          context "when the tenant has an outstanding amount after benefits" do
            context "when tenant is in receipt of housing benefit" do
              it "correctly derives and saves weekly total shortfall" do
                lettings_log.update!(hbrentshortfall: 1, tshortfall: 130, period: 1, hb: 1)
                record_from_db = ActiveRecord::Base.connection.execute("select wtshortfall from lettings_logs where id=#{lettings_log.id}").to_a[0]
                expect(lettings_log.wtshortfall).to eq(130.0)
                expect(record_from_db["wtshortfall"]).to eq(130.0)
              end
            end

            context "when tenant is in receipt of universal credit with housing element exc. housing benefit" do
              it "correctly derives and saves weekly total shortfall" do
                lettings_log.update!(hbrentshortfall: 1, tshortfall: 130, period: 1, hb: 6)
                record_from_db = ActiveRecord::Base.connection.execute("select wtshortfall from lettings_logs where id=#{lettings_log.id}").to_a[0]
                expect(lettings_log.wtshortfall).to eq(130.0)
                expect(record_from_db["wtshortfall"]).to eq(130.0)
              end
            end

            context "when tenant is in receipt of housing benefit and universal credit" do
              it "correctly derives and saves weekly total shortfall" do
                lettings_log.update!(hbrentshortfall: 1, tshortfall: 130, period: 1, hb: 8)
                record_from_db = ActiveRecord::Base.connection.execute("select wtshortfall from lettings_logs where id=#{lettings_log.id}").to_a[0]
                expect(lettings_log.wtshortfall).to eq(130.0)
                expect(record_from_db["wtshortfall"]).to eq(130.0)
              end
            end
          end

          it "correctly derives floats" do
            lettings_log.update!(supcharg: 30.12, pscharge: 25.13, scharge: 30.98, brent: 100.97, period: 1)
            record_from_db = ActiveRecord::Base.connection.execute("select wtcharge, wsupchrg, wpschrge, wscharge, wrent from lettings_logs where id=#{lettings_log.id}").to_a[0]
            expect(lettings_log.wsupchrg).to eq(30.12)
            expect(lettings_log.wpschrge).to eq(25.13)
            expect(lettings_log.wscharge).to eq(30.98)
            expect(lettings_log.wrent).to eq(100.97)
            expect(lettings_log.wtcharge).to eq(187.2)
            expect(record_from_db["wsupchrg"]).to eq(30.12)
            expect(record_from_db["wpschrge"]).to eq(25.13)
            expect(record_from_db["wscharge"]).to eq(30.98)
            expect(record_from_db["wrent"]).to eq(100.97)
            expect(record_from_db["wtcharge"]).to eq(187.2)
          end
        end
      end

      context "when the owning organisation is a LA" do
        before { lettings_log.owning_organisation.update!(provider_type: "LA") }

        context "when the rent type is intermediate rent and supported housing" do
          it "correctly derives and saves lettype" do
            lettings_log.update!(rent_type: 4, needstype: 2)
            record_from_db = ActiveRecord::Base.connection.execute("select lettype from lettings_logs where id=#{lettings_log.id}").to_a[0]
            expect(lettings_log.lettype).to eq(12)
            expect(record_from_db["lettype"]).to eq(12)
          end
        end

        context "when the rent type is intermediate rent and general needs housing" do
          it "correctly derives and saves lettype" do
            lettings_log.update!(rent_type: 4, needstype: 1)
            record_from_db = ActiveRecord::Base.connection.execute("select lettype from lettings_logs where id=#{lettings_log.id}").to_a[0]
            expect(lettings_log.lettype).to eq(11)
            expect(record_from_db["lettype"]).to eq(11)
          end
        end

        context "when the rent type is affordable rent and supported housing" do
          it "correctly derives and saves lettype" do
            lettings_log.update!(rent_type: 2, needstype: 2)
            record_from_db = ActiveRecord::Base.connection.execute("select lettype from lettings_logs where id=#{lettings_log.id}").to_a[0]
            expect(lettings_log.lettype).to eq(8)
            expect(record_from_db["lettype"]).to eq(8)
          end
        end

        context "when the rent type is affordable rent and general needs housing" do
          it "correctly derives and saves lettype" do
            lettings_log.update!(rent_type: 2, needstype: 1)
            record_from_db = ActiveRecord::Base.connection.execute("select lettype from lettings_logs where id=#{lettings_log.id}").to_a[0]
            expect(lettings_log.lettype).to eq(7)
            expect(record_from_db["lettype"]).to eq(7)
          end
        end

        context "when the rent type is social rent and supported housing" do
          it "correctly derives and saves lettype" do
            lettings_log.update!(rent_type: 0, needstype: 2)
            record_from_db = ActiveRecord::Base.connection.execute("select lettype from lettings_logs where id=#{lettings_log.id}").to_a[0]
            expect(lettings_log.lettype).to eq(4)
            expect(record_from_db["lettype"]).to eq(4)
          end
        end

        context "when the rent type is social rent and general needs housing" do
          it "correctly derives and saves lettype" do
            lettings_log.update!(rent_type: 0, needstype: 1)
            record_from_db = ActiveRecord::Base.connection.execute("select lettype from lettings_logs where id=#{lettings_log.id}").to_a[0]
            expect(lettings_log.lettype).to eq(3)
            expect(record_from_db["lettype"]).to eq(3)
          end
        end
      end
    end

    it "correctly derives and saves day, month, year from start date" do
      record_from_db = ActiveRecord::Base.connection.execute("select startdate from lettings_logs where id=#{lettings_log.id}").to_a[0]
      expect(record_from_db["startdate"].day).to eq(10)
      expect(record_from_db["startdate"].month).to eq(10)
      expect(record_from_db["startdate"].year).to eq(2021)
    end

    context "when any charge field is set" do
      before do
        lettings_log.update!(pscharge: 10)
      end

      it "derives that any blank ones are 0" do
        record_from_db = ActiveRecord::Base.connection.execute("select supcharg, scharge from lettings_logs where id=#{lettings_log.id}").to_a[0]
        expect(record_from_db["supcharg"].to_f).to eq(0.0)
        expect(record_from_db["scharge"].to_f).to eq(0.0)
      end
    end

    def check_postcode_fields(postcode_field)
      record_from_db = ActiveRecord::Base.connection.execute("select #{postcode_field} from lettings_logs where id=#{address_lettings_log.id}").to_a[0]
      expect(address_lettings_log[postcode_field]).to eq("M1 1AE")
      expect(record_from_db[postcode_field]).to eq("M1 1AE")
    end

    def check_previous_postcode_fields(postcode_field)
      record_from_db = ActiveRecord::Base.connection.execute("select #{postcode_field} from lettings_logs where id=#{address_lettings_log.id}").to_a[0]
      expect(address_lettings_log[postcode_field]).to eq("M1 1AE")
      expect(record_from_db[postcode_field]).to eq("M1 1AE")
    end

    context "when saving addresses" do
      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

      let!(:address_lettings_log) do
        described_class.create({
          managing_organisation: owning_organisation,
          owning_organisation:,
          created_by: created_by_user,
          postcode_known: 1,
          postcode_full: "M1 1AE",
        })
      end

      def check_property_postcode_fields
        check_postcode_fields("postcode_full")
      end

      it "correctly formats previous postcode" do
        address_lettings_log.update!(postcode_full: "M1 1AE")
        check_property_postcode_fields

        address_lettings_log.update!(postcode_full: "m1 1ae")
        check_property_postcode_fields

        address_lettings_log.update!(postcode_full: "m11Ae")
        check_property_postcode_fields

        address_lettings_log.update!(postcode_full: "m11ae")
        check_property_postcode_fields
      end

      it "correctly infers la" do
        record_from_db = ActiveRecord::Base.connection.execute("select la from lettings_logs where id=#{address_lettings_log.id}").to_a[0]
        expect(address_lettings_log.la).to eq("E08000003")
        expect(record_from_db["la"]).to eq("E08000003")
      end

      it "errors if the property postcode is emptied" do
        expect { address_lettings_log.update!({ postcode_full: "" }) }
          .to raise_error(ActiveRecord::RecordInvalid, /#{I18n.t("validations.postcode")}/)
      end

      it "errors if the property postcode is not valid" do
        expect { address_lettings_log.update!({ postcode_full: "invalid_postcode" }) }
          .to raise_error(ActiveRecord::RecordInvalid, /#{I18n.t("validations.postcode")}/)
      end

      context "when the local authority lookup times out" do
        before do
          allow(Timeout).to receive(:timeout).and_raise(Timeout::Error)
        end

        it "logs a warning" do
          expect(Rails.logger).to receive(:warn).with("Postcodes.io lookup timed out")
          address_lettings_log.update!({ postcode_known: 1, postcode_full: "M1 1AD" })
        end
      end

      it "correctly resets all fields if property postcode not known" do
        address_lettings_log.update!({ postcode_known: 0 })

        record_from_db = ActiveRecord::Base.connection.execute("select la, postcode_full from lettings_logs where id=#{address_lettings_log.id}").to_a[0]
        expect(record_from_db["postcode_full"]).to eq(nil)
        expect(address_lettings_log.la).to eq(nil)
        expect(record_from_db["la"]).to eq(nil)
      end

      it "changes the LA if property postcode changes from not known to known and provided" do
        address_lettings_log.update!({ postcode_known: 0 })
        address_lettings_log.update!({ la: "E09000033" })

        record_from_db = ActiveRecord::Base.connection.execute("select la, postcode_full from lettings_logs where id=#{address_lettings_log.id}").to_a[0]
        expect(record_from_db["postcode_full"]).to eq(nil)
        expect(address_lettings_log.la).to eq("E09000033")
        expect(record_from_db["la"]).to eq("E09000033")

        address_lettings_log.update!({ postcode_known: 1, postcode_full: "M1 1AD" })

        record_from_db = ActiveRecord::Base.connection.execute("select la, postcode_full from lettings_logs where id=#{address_lettings_log.id}").to_a[0]
        expect(record_from_db["postcode_full"]).to eq("M1 1AD")
        expect(address_lettings_log.la).to eq("E08000003")
        expect(record_from_db["la"]).to eq("E08000003")
      end
    end

    context "when saving previous address" do
      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

      let!(:address_lettings_log) do
        described_class.create({
          managing_organisation: owning_organisation,
          owning_organisation:,
          created_by: created_by_user,
          ppcodenk: 1,
          ppostcode_full: "M1 1AE",
        })
      end

      def previous_postcode_fields
        check_previous_postcode_fields("ppostcode_full")
      end

      it "correctly formats previous postcode" do
        address_lettings_log.update!(ppostcode_full: "M1 1AE")
        previous_postcode_fields

        address_lettings_log.update!(ppostcode_full: "m1 1ae")
        previous_postcode_fields

        address_lettings_log.update!(ppostcode_full: "m11Ae")
        previous_postcode_fields

        address_lettings_log.update!(ppostcode_full: "m11ae")
        previous_postcode_fields
      end

      it "correctly infers prevloc" do
        record_from_db = ActiveRecord::Base.connection.execute("select prevloc from lettings_logs where id=#{address_lettings_log.id}").to_a[0]
        expect(address_lettings_log.prevloc).to eq("E08000003")
        expect(record_from_db["prevloc"]).to eq("E08000003")
      end

      it "errors if the previous postcode is emptied" do
        expect { address_lettings_log.update!({ ppostcode_full: "" }) }
          .to raise_error(ActiveRecord::RecordInvalid, /#{I18n.t("validations.postcode")}/)
      end

      it "errors if the previous postcode is not valid" do
        expect { address_lettings_log.update!({ ppostcode_full: "invalid_postcode" }) }
          .to raise_error(ActiveRecord::RecordInvalid, /#{I18n.t("validations.postcode")}/)
      end

      it "correctly resets all fields if previous postcode not known" do
        address_lettings_log.update!({ ppcodenk: 0 })

        record_from_db = ActiveRecord::Base.connection.execute("select prevloc, ppostcode_full from lettings_logs where id=#{address_lettings_log.id}").to_a[0]
        expect(record_from_db["ppostcode_full"]).to eq(nil)
        expect(address_lettings_log.prevloc).to eq(nil)
        expect(record_from_db["prevloc"]).to eq(nil)
      end

      it "correctly resets la if la is not known" do
        address_lettings_log.update!({ ppcodenk: 0 })
        address_lettings_log.update!({ previous_la_known: 1, prevloc: "S92000003" })
        record_from_db = ActiveRecord::Base.connection.execute("select prevloc from lettings_logs where id=#{address_lettings_log.id}").to_a[0]
        expect(record_from_db["prevloc"]).to eq("S92000003")
        expect(address_lettings_log.prevloc).to eq("S92000003")

        address_lettings_log.update!({ previous_la_known: 0 })
        record_from_db = ActiveRecord::Base.connection.execute("select prevloc from lettings_logs where id=#{address_lettings_log.id}").to_a[0]
        expect(address_lettings_log.prevloc).to eq(nil)
        expect(record_from_db["prevloc"]).to eq(nil)
      end

      it "changes the prevloc if previous postcode changes from not known to known and provided" do
        address_lettings_log.update!({ ppcodenk: 0 })
        address_lettings_log.update!({ previous_la_known: 1, prevloc: "E09000033" })

        record_from_db = ActiveRecord::Base.connection.execute("select prevloc, ppostcode_full from lettings_logs where id=#{address_lettings_log.id}").to_a[0]
        expect(record_from_db["ppostcode_full"]).to eq(nil)
        expect(address_lettings_log.prevloc).to eq("E09000033")
        expect(record_from_db["prevloc"]).to eq("E09000033")

        address_lettings_log.update!({ ppcodenk: 0, ppostcode_full: "M1 1AD" })

        record_from_db = ActiveRecord::Base.connection.execute("select prevloc, ppostcode_full from lettings_logs where id=#{address_lettings_log.id}").to_a[0]
        expect(record_from_db["ppostcode_full"]).to eq("M1 1AD")
        expect(address_lettings_log.prevloc).to eq("E08000003")
        expect(record_from_db["prevloc"]).to eq("E08000003")
      end
    end

    context "when saving rent and charges" do
      let!(:lettings_log) do
        described_class.create({
          managing_organisation: owning_organisation,
          owning_organisation:,
          created_by: created_by_user,
          brent: 5.77,
          scharge: 10.01,
          pscharge: 3,
          supcharg: 12.2,
        })
      end

      it "correctly sums rental charges" do
        record_from_db = ActiveRecord::Base.connection.execute("select tcharge from lettings_logs where id=#{lettings_log.id}").to_a[0]
        expect(record_from_db["tcharge"]).to eq(30.98)
      end
    end

    context "when validating household members derived vars" do
      let!(:household_lettings_log) do
        described_class.create!({
          managing_organisation: owning_organisation,
          owning_organisation:,
          created_by: created_by_user,
          hhmemb: 3,
          relat2: "X",
          relat3: "C",
          relat4: "X",
          relat5: "C",
          relat7: "C",
          relat8: "X",
          age1: 22,
          age2: 16,
          age4: 60,
          age6: 88,
          age7: 14,
          age8: 42,
        })
      end

      it "correctly derives and saves totchild" do
        record_from_db = ActiveRecord::Base.connection.execute("select totchild from lettings_logs where id=#{household_lettings_log.id}").to_a[0]
        expect(record_from_db["totchild"]).to eq(3)
      end

      it "correctly derives and saves totelder" do
        record_from_db = ActiveRecord::Base.connection.execute("select totelder from lettings_logs where id=#{household_lettings_log.id}").to_a[0]
        expect(record_from_db["totelder"]).to eq(2)
      end

      it "correctly derives and saves totadult" do
        record_from_db = ActiveRecord::Base.connection.execute("select totadult from lettings_logs where id=#{household_lettings_log.id}").to_a[0]
        expect(record_from_db["totadult"]).to eq(3)
      end

      it "correctly derives economic status for tenants under 16" do
        record_from_db = ActiveRecord::Base.connection.execute("select ecstat7 from lettings_logs where id=#{household_lettings_log.id}").to_a[0]
        expect(record_from_db["ecstat7"]).to eq(9)
      end

      it "correctly resets economic status when age changes from under 16" do
        household_lettings_log.update!(age7_known: 0, age7: 17)
        record_from_db = ActiveRecord::Base.connection.execute("select ecstat7 from lettings_logs where id=#{household_lettings_log.id}").to_a[0]
        expect(record_from_db["ecstat7"]).to eq(nil)
      end
    end

    it "correctly derives and saves has_benefits" do
      record_from_db = ActiveRecord::Base.connection.execute("select has_benefits from lettings_logs where id=#{lettings_log.id}").to_a[0]
      expect(record_from_db["has_benefits"]).to eq(1)
    end

    context "when it is a renewal" do
      let!(:lettings_log) do
        described_class.create({
          managing_organisation: owning_organisation,
          owning_organisation:,
          created_by: created_by_user,
          renewal: 1,
          startdate: Time.zone.local(2021, 4, 10),
          created_at: Time.utc(2022, 2, 8, 16, 52, 15),
        })
      end

      it "correctly derives and saves waityear" do
        record_from_db = ActiveRecord::Base.connection.execute("select waityear from lettings_logs where id=#{lettings_log.id}").to_a[0]
        expect(record_from_db["waityear"]).to eq(2)
        expect(lettings_log["waityear"]).to eq(2)
      end

      it "correctly derives and saves underoccupation_benefitcap if year is 2021" do
        record_from_db = ActiveRecord::Base.connection.execute("select underoccupation_benefitcap from lettings_logs where id=#{lettings_log.id}").to_a[0]
        expect(record_from_db["underoccupation_benefitcap"]).to eq(2)
        expect(lettings_log["underoccupation_benefitcap"]).to eq(2)
      end

      it "correctly derives and saves prevten" do
        lettings_log.managing_organisation.update!({ provider_type: "PRP" })
        lettings_log.update!({ needstype: 1 })

        record_from_db = ActiveRecord::Base.connection.execute("select prevten from lettings_logs where id=#{lettings_log.id}").to_a[0]
        expect(record_from_db["prevten"]).to eq(32)
        expect(lettings_log["prevten"]).to eq(32)

        lettings_log.managing_organisation.update!({ provider_type: "LA" })
        lettings_log.update!({ needstype: 1 })

        record_from_db = ActiveRecord::Base.connection.execute("select prevten from lettings_logs where id=#{lettings_log.id}").to_a[0]
        expect(record_from_db["prevten"]).to eq(30)
        expect(lettings_log["prevten"]).to eq(30)
      end

      it "correctly derives and saves referral" do
        record_from_db = ActiveRecord::Base.connection.execute("select referral from lettings_logs where id=#{lettings_log.id}").to_a[0]
        expect(record_from_db["referral"]).to eq(1)
        expect(lettings_log["referral"]).to eq(1)
      end

      it "correctly derives and saves vacdays" do
        record_from_db = ActiveRecord::Base.connection.execute("select vacdays from lettings_logs where id=#{lettings_log.id}").to_a[0]
        expect(record_from_db["vacdays"]).to eq(0)
        expect(lettings_log["vacdays"]).to eq(0)
      end

      it "correctly derives and saves first_time_property_let_as_social_housing" do
        record_from_db = ActiveRecord::Base.connection.execute(
          "select first_time_property_let_as_social_housing" \
          " from lettings_logs where id=#{lettings_log.id}",
        ).to_a[0]
        expect(record_from_db["first_time_property_let_as_social_housing"]).to eq(0)
        expect(lettings_log["first_time_property_let_as_social_housing"]).to eq(0)
      end
    end

    context "when answering the household characteristics questions" do
      let!(:lettings_log) do
        described_class.create({
          managing_organisation: owning_organisation,
          owning_organisation:,
          created_by: created_by_user,
          age1_known: 1,
          sex1: "R",
          relat2: "R",
          ecstat1: 10,
        })
      end

      it "correctly derives and saves refused" do
        record_from_db = ActiveRecord::Base.connection.execute("select refused from lettings_logs where id=#{lettings_log.id}").to_a[0]
        expect(record_from_db["refused"]).to eq(1)
        expect(lettings_log["refused"]).to eq(1)
      end
    end

    context "when it is supported housing and a care home charge has been supplied" do
      let!(:lettings_log) do
        described_class.create({
          managing_organisation: owning_organisation,
          owning_organisation:,
          created_by: created_by_user,
          needstype: 2,
        })
      end

      context "when the care home charge is paid bi-weekly" do
        it "correctly derives and saves weekly care home charge" do
          lettings_log.update!(chcharge: 100, period: 2)
          record_from_db = ActiveRecord::Base.connection.execute("select wchchrg from lettings_logs where id=#{lettings_log.id}").to_a[0]
          expect(lettings_log.wchchrg).to eq(50.0)
          expect(record_from_db["wchchrg"]).to eq(50.0)
        end

        it "correctly derives floats" do
          lettings_log.update!(chcharge: 100.12, period: 2)
          record_from_db = ActiveRecord::Base.connection.execute("select wchchrg from lettings_logs where id=#{lettings_log.id}").to_a[0]
          expect(lettings_log.wchchrg).to eq(50.06)
          expect(record_from_db["wchchrg"]).to eq(50.06)
        end
      end

      context "when the care home charge is paid every 4 weeks" do
        it "correctly derives and saves weekly care home charge" do
          lettings_log.update!(chcharge: 120, period: 3)
          record_from_db = ActiveRecord::Base.connection.execute("select wchchrg from lettings_logs where id=#{lettings_log.id}").to_a[0]
          expect(lettings_log.wchchrg).to eq(30.0)
          expect(record_from_db["wchchrg"]).to eq(30.0)
        end

        it "correctly derives floats" do
          lettings_log.update!(chcharge: 100.12, period: 3)
          record_from_db = ActiveRecord::Base.connection.execute("select wchchrg from lettings_logs where id=#{lettings_log.id}").to_a[0]
          expect(lettings_log.wchchrg).to eq(25.03)
          expect(record_from_db["wchchrg"]).to eq(25.03)
        end
      end

      context "when the care home charge is paid every calendar month" do
        it "correctly derives and saves weekly care home charge" do
          lettings_log.update!(chcharge: 130, period: 4)
          record_from_db = ActiveRecord::Base.connection.execute("select wchchrg from lettings_logs where id=#{lettings_log.id}").to_a[0]
          expect(lettings_log.wchchrg).to eq(30.0)
          expect(record_from_db["wchchrg"]).to eq(30.0)
        end

        it "correctly derives floats" do
          lettings_log.update!(chcharge: 100.12, period: 4)
          record_from_db = ActiveRecord::Base.connection.execute("select wchchrg from lettings_logs where id=#{lettings_log.id}").to_a[0]
          expect(lettings_log.wchchrg).to eq(23.10)
          expect(record_from_db["wchchrg"]).to eq(23.10)
        end
      end

      context "when the care home charge is paid weekly for 50 weeks" do
        it "correctly derives and saves weekly care home charge" do
          lettings_log.update!(chcharge: 130, period: 5)
          record_from_db = ActiveRecord::Base.connection.execute("select wchchrg from lettings_logs where id=#{lettings_log.id}").to_a[0]
          expect(lettings_log.wchchrg).to eq(125.0)
          expect(record_from_db["wchchrg"]).to eq(125.0)
        end

        it "correctly derives floats" do
          lettings_log.update!(chcharge: 100.12, period: 5)
          record_from_db = ActiveRecord::Base.connection.execute("select wchchrg from lettings_logs where id=#{lettings_log.id}").to_a[0]
          expect(lettings_log.wchchrg).to eq(96.27)
          expect(record_from_db["wchchrg"]).to eq(96.27)
        end
      end

      context "when the care home charge is paid weekly for 49 weeks" do
        it "correctly derives and saves weekly care home charge" do
          lettings_log.update!(chcharge: 130, period: 6)
          record_from_db = ActiveRecord::Base.connection.execute("select wchchrg from lettings_logs where id=#{lettings_log.id}").to_a[0]
          expect(lettings_log.wchchrg).to eq(122.5)
          expect(record_from_db["wchchrg"]).to eq(122.5)
        end

        it "correctly derives floats" do
          lettings_log.update!(chcharge: 100.12, period: 6)
          record_from_db = ActiveRecord::Base.connection.execute("select wchchrg from lettings_logs where id=#{lettings_log.id}").to_a[0]
          expect(lettings_log.wchchrg).to eq(94.34)
          expect(record_from_db["wchchrg"]).to eq(94.34)
        end
      end

      context "when the care home charge is paid weekly for 48 weeks" do
        it "correctly derives and saves weekly care home charge" do
          lettings_log.update!(chcharge: 130, period: 7)
          record_from_db = ActiveRecord::Base.connection.execute("select wchchrg from lettings_logs where id=#{lettings_log.id}").to_a[0]
          expect(lettings_log.wchchrg).to eq(120.0)
          expect(record_from_db["wchchrg"]).to eq(120.0)
        end

        it "correctly derives floats" do
          lettings_log.update!(chcharge: 100.12, period: 7)
          record_from_db = ActiveRecord::Base.connection.execute("select wchchrg from lettings_logs where id=#{lettings_log.id}").to_a[0]
          expect(lettings_log.wchchrg).to eq(92.42)
          expect(record_from_db["wchchrg"]).to eq(92.42)
        end
      end

      context "when the care home charge is paid weekly for 47 weeks" do
        it "correctly derives and saves weekly care home charge" do
          lettings_log.update!(chcharge: 130, period: 8)
          record_from_db = ActiveRecord::Base.connection.execute("select wchchrg from lettings_logs where id=#{lettings_log.id}").to_a[0]
          expect(lettings_log.wchchrg).to eq(117.5)
          expect(record_from_db["wchchrg"]).to eq(117.5)
        end

        it "correctly derives floats" do
          lettings_log.update!(chcharge: 100.12, period: 8)
          record_from_db = ActiveRecord::Base.connection.execute("select wchchrg from lettings_logs where id=#{lettings_log.id}").to_a[0]
          expect(lettings_log.wchchrg).to eq(90.49)
          expect(record_from_db["wchchrg"]).to eq(90.49)
        end
      end

      context "when the care home charge is paid weekly for 46 weeks" do
        it "correctly derives and saves weekly care home charge" do
          lettings_log.update!(chcharge: 130, period: 9)
          record_from_db = ActiveRecord::Base.connection.execute("select wchchrg from lettings_logs where id=#{lettings_log.id}").to_a[0]
          expect(lettings_log.wchchrg).to eq(115.0)
          expect(record_from_db["wchchrg"]).to eq(115.0)
        end

        it "correctly derives floats" do
          lettings_log.update!(chcharge: 100.12, period: 9)
          record_from_db = ActiveRecord::Base.connection.execute("select wchchrg from lettings_logs where id=#{lettings_log.id}").to_a[0]
          expect(lettings_log.wchchrg).to eq(88.57)
          expect(record_from_db["wchchrg"]).to eq(88.57)
        end
      end

      context "when the care home charge is paid weekly for 52 weeks" do
        it "correctly derives and saves weekly care home charge" do
          lettings_log.update!(chcharge: 130, period: 1)
          record_from_db = ActiveRecord::Base.connection.execute("select wchchrg from lettings_logs where id=#{lettings_log.id}").to_a[0]
          expect(lettings_log.wchchrg).to eq(130.0)
          expect(record_from_db["wchchrg"]).to eq(130.0)
        end

        it "correctly derives floats" do
          lettings_log.update!(chcharge: 100.12, period: 1)
          record_from_db = ActiveRecord::Base.connection.execute("select wchchrg from lettings_logs where id=#{lettings_log.id}").to_a[0]
          expect(lettings_log.wchchrg).to eq(100.12)
          expect(record_from_db["wchchrg"]).to eq(100.12)
        end
      end
    end

    context "when the data provider is filling in the reason for the property being vacant" do
      let!(:first_let_lettings_log) do
        described_class.create({
          managing_organisation: owning_organisation,
          owning_organisation:,
          created_by: created_by_user,
          first_time_property_let_as_social_housing: 1,
        })
      end

      let!(:relet_lettings_log) do
        described_class.create({
          managing_organisation: owning_organisation,
          owning_organisation:,
          created_by: created_by_user,
          first_time_property_let_as_social_housing: 0,
        })
      end

      it "the newprop variable is correctly derived and saved as 1 for a first let vacancy reason" do
        first_let_lettings_log.update!({ rsnvac: 15 })
        record_from_db = ActiveRecord::Base.connection.execute("select newprop from lettings_logs where id=#{first_let_lettings_log.id}").to_a[0]
        expect(record_from_db["newprop"]).to eq(1)
        expect(first_let_lettings_log["newprop"]).to eq(1)
      end

      it "the newprop variable is correctly derived and saved as 2 for anything that is not a first let vacancy reason" do
        relet_lettings_log.update!({ rsnvac: 2 })
        record_from_db = ActiveRecord::Base.connection.execute("select newprop from lettings_logs where id=#{relet_lettings_log.id}").to_a[0]
        expect(record_from_db["newprop"]).to eq(2)
        expect(relet_lettings_log["newprop"]).to eq(2)
      end
    end

    context "when a total shortfall is provided" do
      it "derives that tshortfall is known" do
        lettings_log.update!({ tshortfall: 10 })
        record_from_db = ActiveRecord::Base.connection.execute("select tshortfall_known from lettings_logs where id=#{lettings_log.id}").to_a[0]
        expect(record_from_db["tshortfall_known"]).to eq(0)
        expect(lettings_log["tshortfall_known"]).to eq(0)
      end
    end

    context "when a lettings log is a supported housing log" do
      let(:real_2021_2022_form) { Form.new("config/forms/2021_2022.json") }

      before do
        lettings_log.needstype = 2
        allow(FormHandler.instance).to receive(:get_form).and_return(real_2021_2022_form)
      end

      context "and a scheme with a single log is selected" do
        let(:scheme) { FactoryBot.create(:scheme) }
        let!(:location) { FactoryBot.create(:location, scheme:) }

        before { lettings_log.update!(startdate: Time.zone.local(2022, 4, 2), scheme:) }

        it "derives the scheme location" do
          record_from_db = ActiveRecord::Base.connection.execute("select location_id from lettings_logs where id=#{lettings_log.id}").to_a[0]
          expect(record_from_db["location_id"]).to eq(location.id)
          expect(lettings_log["location_id"]).to eq(location.id)
        end
      end

      context "and not renewal" do
        let(:scheme) { FactoryBot.create(:scheme) }
        let(:location) { FactoryBot.create(:location, scheme:, postcode: "M11AE", type_of_unit: 1, mobility_type: "W") }

        let(:supported_housing_lettings_log) do
          described_class.create!({
            managing_organisation: owning_organisation,
            owning_organisation:,
            created_by: created_by_user,
            needstype: 2,
            scheme_id: scheme.id,
            location_id: location.id,
            renewal: 0,
          })
        end

        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 "correctly infers and saves la" do
          record_from_db = ActiveRecord::Base.connection.execute("SELECT la from lettings_logs WHERE id=#{supported_housing_lettings_log.id}").to_a[0]
          expect(record_from_db["la"]).to be_nil
          expect(supported_housing_lettings_log.la).to eq("E08000003")
        end

        it "correctly infers and saves postcode" do
          record_from_db = ActiveRecord::Base.connection.execute("SELECT postcode_full from lettings_logs WHERE id=#{supported_housing_lettings_log.id}").to_a[0]
          expect(record_from_db["postcode_full"]).to be_nil
          expect(supported_housing_lettings_log.postcode_full).to eq("M1 1AE")
        end

        it "unittype_sh method returns the type_of_unit of the location" do
          expect(supported_housing_lettings_log.unittype_sh).to eq(1)
        end

        it "correctly infers and saves wchair" do
          record_from_db = ActiveRecord::Base.connection.execute("SELECT wchair from lettings_logs WHERE id=#{supported_housing_lettings_log.id}").to_a[0]
          expect(record_from_db["wchair"]).to eq(1)
        end
      end

      context "and renewal" do
        let(:scheme) { FactoryBot.create(:scheme) }
        let(:location) { FactoryBot.create(:location, scheme:) }

        let!(:supported_housing_lettings_log) do
          described_class.create!({
            managing_organisation: owning_organisation,
            owning_organisation:,
            created_by: created_by_user,
            needstype: 2,
            scheme_id: scheme.id,
            location_id: location.id,
            renewal: 1,
            startdate: Time.zone.now,
            created_at: Time.utc(2022, 2, 8, 16, 52, 15),
          })
        end

        it "correcly infers and saves the renewal date" do
          record_from_db = ActiveRecord::Base.connection.execute("SELECT voiddate from lettings_logs where id=#{supported_housing_lettings_log.id}").to_a[0]
          expect(record_from_db["voiddate"].to_i).to eq(supported_housing_lettings_log.startdate.to_i)
        end
      end
    end

    context "when saving accessibility needs" do
      it "derives housingneeds_h as true if 'Don't know' is selected for housingneeds" do
        lettings_log.update!({ housingneeds: 3 })
        record_from_db = ActiveRecord::Base.connection.execute("select housingneeds_a, housingneeds_b, housingneeds_c, housingneeds_f, housingneeds_g, housingneeds_h from lettings_logs where id=#{lettings_log.id}").to_a[0]
        not_selected_housingneeds = %w[housingneeds_a housingneeds_b housingneeds_c housingneeds_f housingneeds_g]
        not_selected_housingneeds.each do |housingneed|
          expect(record_from_db[housingneed]).to eq(0)
          expect(lettings_log[housingneed]).to eq(0)
        end
        expect(record_from_db["housingneeds_h"]).to eq(1)
        expect(lettings_log["housingneeds_h"]).to eq(1)
      end

      it "derives housingneeds_g as true if 'No' is selected for housingneeds" do
        lettings_log.update!({ housingneeds: 2 })
        record_from_db = ActiveRecord::Base.connection.execute("select housingneeds_a, housingneeds_b, housingneeds_c, housingneeds_f, housingneeds_g, housingneeds_h from lettings_logs where id=#{lettings_log.id}").to_a[0]
        not_selected_housingneeds = %w[housingneeds_a housingneeds_b housingneeds_c housingneeds_f housingneeds_h]
        not_selected_housingneeds.each do |housingneed|
          expect(record_from_db[housingneed]).to eq(0)
          expect(lettings_log[housingneed]).to eq(0)
        end
        expect(record_from_db["housingneeds_g"]).to eq(1)
        expect(lettings_log["housingneeds_g"]).to eq(1)
      end

      it "derives housingneeds_a as true if 'Fully wheelchair accessible' is selected for housingneeds_type" do
        lettings_log.update!({ housingneeds: 1, housingneeds_type: 0 })
        record_from_db = ActiveRecord::Base.connection.execute("select housingneeds_a, housingneeds_b, housingneeds_c, housingneeds_f, housingneeds_g, housingneeds_h from lettings_logs where id=#{lettings_log.id}").to_a[0]
        not_selected_housingneeds = %w[housingneeds_b housingneeds_c housingneeds_f housingneeds_g housingneeds_h]
        not_selected_housingneeds.each do |housingneed|
          expect(record_from_db[housingneed]).to eq(0)
          expect(lettings_log[housingneed]).to eq(0)
        end
        expect(record_from_db["housingneeds_a"]).to eq(1)
        expect(lettings_log["housingneeds_a"]).to eq(1)
      end

      it "derives housingneeds_b as true if 'Wheelchair access to essential rooms' is selected for housingneeds_type" do
        lettings_log.update!({ housingneeds: 1, housingneeds_type: 1 })
        record_from_db = ActiveRecord::Base.connection.execute("select housingneeds_a, housingneeds_b, housingneeds_c, housingneeds_f, housingneeds_g, housingneeds_h from lettings_logs where id=#{lettings_log.id}").to_a[0]
        not_selected_housingneeds = %w[housingneeds_a housingneeds_c housingneeds_f housingneeds_g housingneeds_h]
        not_selected_housingneeds.each do |housingneed|
          expect(record_from_db[housingneed]).to eq(0)
          expect(lettings_log[housingneed]).to eq(0)
        end
        expect(record_from_db["housingneeds_b"]).to eq(1)
        expect(lettings_log["housingneeds_b"]).to eq(1)
      end

      it "derives housingneeds_c if 'Level access housing' is selected for housingneeds_type" do
        lettings_log.update!({ housingneeds: 1, housingneeds_type: 2 })
        record_from_db = ActiveRecord::Base.connection.execute("select housingneeds_a, housingneeds_b, housingneeds_c, housingneeds_f, housingneeds_g, housingneeds_h from lettings_logs where id=#{lettings_log.id}").to_a[0]
        not_selected_housingneeds = %w[housingneeds_a housingneeds_b housingneeds_f housingneeds_g housingneeds_h]
        not_selected_housingneeds.each do |housingneed|
          expect(record_from_db[housingneed]).to eq(0)
          expect(lettings_log[housingneed]).to eq(0)
        end
        expect(record_from_db["housingneeds_c"]).to eq(1)
        expect(lettings_log["housingneeds_c"]).to eq(1)
      end

      it "derives housingneeds_f if 'Yes' is selected for housingneeds_other" do
        lettings_log.update!({ housingneeds: 1, housingneeds_other: 1 })
        record_from_db = ActiveRecord::Base.connection.execute("select housingneeds_a, housingneeds_b, housingneeds_c, housingneeds_f, housingneeds_g, housingneeds_h from lettings_logs where id=#{lettings_log.id}").to_a[0]
        not_selected_housingneeds = %w[housingneeds_a housingneeds_b housingneeds_c housingneeds_g housingneeds_h]
        not_selected_housingneeds.each do |housingneed|
          expect(record_from_db[housingneed]).to eq(0)
          expect(lettings_log[housingneed]).to eq(0)
        end
        expect(record_from_db["housingneeds_f"]).to eq(1)
        expect(lettings_log["housingneeds_f"]).to eq(1)
      end

      it "clears previously set housingneeds if 'No' is selected for housingneeds" do
        lettings_log.update!({ housingneeds: 1, housingneeds_type: 2, housingneeds_other: 1 })
        record_from_db = ActiveRecord::Base.connection.execute("select housingneeds_a, housingneeds_b, housingneeds_c, housingneeds_f, housingneeds_g, housingneeds_h from lettings_logs where id=#{lettings_log.id}").to_a[0]
        expect(record_from_db["housingneeds_c"]).to eq(1)
        expect(lettings_log["housingneeds_c"]).to eq(1)
        expect(record_from_db["housingneeds_f"]).to eq(1)
        expect(lettings_log["housingneeds_f"]).to eq(1)

        lettings_log.update!({ housingneeds: 2 })
        record_from_db = ActiveRecord::Base.connection.execute("select housingneeds_a, housingneeds_b, housingneeds_c, housingneeds_f, housingneeds_g, housingneeds_h from lettings_logs where id=#{lettings_log.id}").to_a[0]
        not_selected_housingneeds = %w[housingneeds_a housingneeds_b housingneeds_c housingneeds_f housingneeds_h]
        not_selected_housingneeds.each do |housingneed|
          expect(record_from_db[housingneed]).to eq(0)
          expect(lettings_log[housingneed]).to eq(0)
        end
        expect(record_from_db["housingneeds_g"]).to eq(1)
        expect(lettings_log["housingneeds_g"]).to eq(1)
      end
    end
  end

  describe "optional fields" do
    let(:lettings_log) { FactoryBot.create(:lettings_log) }

    context "when tshortfall is marked as not known" do
      it "makes tshortfall optional" do
        lettings_log.update!({ tshortfall: nil, tshortfall_known: 1 })
        expect(lettings_log.optional_fields).to include("tshortfall")
      end
    end
  end

  describe "resetting invalidated fields" do
    let(:scheme) { FactoryBot.create(:scheme, owning_organisation: created_by_user.organisation) }
    let(:location) { FactoryBot.create(:location, location_code: "E07000223", scheme:) }
    let(:lettings_log) do
      FactoryBot.create(
        :lettings_log,
        renewal: 0,
        rsnvac: 5,
        first_time_property_let_as_social_housing: 0,
        startdate: Time.zone.tomorrow,
        voiddate: Time.zone.today,
        mrcdate: Time.zone.today,
        rent_type: 2,
        needstype: 2,
        period: 1,
        beds: 1,
        brent: 7.17,
        scharge: 1,
        pscharge: 1,
        supcharg: 1,
        created_by: created_by_user,
      )
    end

    before do
      LaRentRange.create!(
        ranges_rent_id: "1",
        la: "E07000223",
        beds: 0,
        lettype: 8,
        soft_min: 12.41,
        soft_max: 89.54,
        hard_min: 10.87,
        hard_max: 100.99,
        start_year: lettings_log.collection_start_year,
      )
    end

    context "when a question that has already been answered, no longer has met dependencies" do
      let(:lettings_log) { FactoryBot.create(:lettings_log, :in_progress, cbl: 1, preg_occ: 2, wchair: 2) }

      it "clears the answer" do
        expect { lettings_log.update!(preg_occ: nil) }.to change(lettings_log, :cbl).from(1).to(nil)
      end

      context "when the question type does not have answer options" do
        let(:lettings_log) { FactoryBot.create(:lettings_log, :in_progress, housingneeds_a: 1, age1: 19) }

        it "clears the answer" do
          expect { lettings_log.update!(housingneeds_a: 0) }.to change(lettings_log, :age1).from(19).to(nil)
        end
      end

      context "when the question type has answer options" do
        let(:lettings_log) { FactoryBot.create(:lettings_log, :in_progress, illness: 1, illness_type_1: 1) }

        it "clears the answer" do
          expect { lettings_log.update!(illness: 2) }.to change(lettings_log, :illness_type_1).from(1).to(nil)
        end
      end
    end

    context "with two pages having the same question key, only one's dependency is met" do
      let(:lettings_log) { FactoryBot.create(:lettings_log, :in_progress, cbl: 0, preg_occ: 2, wchair: 2) }

      it "does not clear the value for answers that apply to both pages" do
        expect(lettings_log.cbl).to eq(0)
      end

      it "does clear the value for answers that do not apply for invalidated page" do
        lettings_log.update!({ cbl: 1 })
        lettings_log.update!({ preg_occ: 1 })

        expect(lettings_log.cbl).to eq(nil)
      end
    end

    context "when a non select question associated with several pages is routed to" do
      let(:lettings_log) { FactoryBot.create(:lettings_log, :in_progress, period: 2, needstype: 1) }

      it "does not clear the answer value" do
        lettings_log.update!({ unitletas: 1 })
        lettings_log.reload
        expect(lettings_log.unitletas).to eq(1)
      end
    end

    context "when the lettings log does not have a valid form set yet" do
      let(:lettings_log) { FactoryBot.create(:lettings_log) }

      it "does not throw an error" do
        expect { lettings_log.update(startdate: Time.zone.local(2015, 1, 1)) }.not_to raise_error
      end
    end

    context "when it changes from a renewal to not a renewal" do
      let(:lettings_log) { FactoryBot.create(:lettings_log) }

      it "resets inferred waityear value" do
        lettings_log.update!({ renewal: 1 })

        record_from_db = ActiveRecord::Base.connection.execute("select waityear from lettings_logs where id=#{lettings_log.id}").to_a[0]
        expect(record_from_db["waityear"]).to eq(2)
        expect(lettings_log["waityear"]).to eq(2)

        lettings_log.update!({ renewal: 0 })
        record_from_db = ActiveRecord::Base.connection.execute("select waityear from lettings_logs where id=#{lettings_log.id}").to_a[0]
        expect(record_from_db["waityear"]).to eq(nil)
        expect(lettings_log["waityear"]).to eq(nil)
      end
    end

    context "when it changes from a supported housing to not a supported housing" do
      let(:location) { FactoryBot.create(:location, mobility_type: "A", postcode: "SW1P 4DG") }
      let(:lettings_log) { FactoryBot.create(:lettings_log, location:) }

      it "resets inferred wchair value" do
        lettings_log.update!({ needstype: 2 })

        record_from_db = ActiveRecord::Base.connection.execute("select wchair from lettings_logs where id=#{lettings_log.id}").to_a[0]
        expect(record_from_db["wchair"]).to eq(2)
        expect(lettings_log["wchair"]).to eq(2)

        lettings_log.update!({ needstype: 1 })
        record_from_db = ActiveRecord::Base.connection.execute("select needstype from lettings_logs where id=#{lettings_log.id}").to_a[0]
        expect(record_from_db["wchair"]).to eq(nil)
        expect(lettings_log["wchair"]).to eq(nil)
      end

      it "resets location" do
        lettings_log.update!({ needstype: 2 })

        record_from_db = ActiveRecord::Base.connection.execute("select location_id from lettings_logs where id=#{lettings_log.id}").to_a[0]
        expect(record_from_db["location_id"]).to eq(location.id)
        expect(lettings_log["location_id"]).to eq(location.id)
        lettings_log.update!({ needstype: 1 })
        record_from_db = ActiveRecord::Base.connection.execute("select location_id from lettings_logs where id=#{lettings_log.id}").to_a[0]
        expect(record_from_db["location_id"]).to eq(nil)
        expect(lettings_log["location_id"]).to eq(nil)
      end
    end

    context "when it is not a renewal" do
      let(:lettings_log) { FactoryBot.create(:lettings_log) }

      it "saves waityear value" do
        lettings_log.update!({ renewal: 0, waityear: 2 })

        record_from_db = ActiveRecord::Base.connection.execute("select waityear from lettings_logs where id=#{lettings_log.id}").to_a[0]
        expect(record_from_db["waityear"]).to eq(2)
        expect(lettings_log["waityear"]).to eq(2)
      end
    end

    context "when a support user changes the owning organisation of the log" do
      let(:lettings_log) { FactoryBot.create(:lettings_log, created_by: created_by_user) }
      let(:organisation_2) { FactoryBot.create(:organisation) }

      context "when the organisation selected doesn't match the scheme set" do
        let(:scheme) { FactoryBot.create(:scheme, owning_organisation: created_by_user.organisation) }
        let(:location) { FactoryBot.create(:location, scheme:) }
        let(:lettings_log) { FactoryBot.create(:lettings_log, owning_organisation: nil, needstype: 2, scheme_id: scheme.id) }

        it "clears the scheme value" do
          lettings_log.update!(owning_organisation: organisation_2)
          expect(lettings_log.reload.scheme).to be nil
        end
      end

      context "when the organisation selected still matches the scheme set" do
        let(:scheme) { FactoryBot.create(:scheme, owning_organisation: organisation_2) }
        let(:location) { FactoryBot.create(:location, scheme:) }
        let(:lettings_log) { FactoryBot.create(:lettings_log, owning_organisation: nil, needstype: 2, scheme_id: scheme.id) }

        it "does not clear the scheme value" do
          lettings_log.update!(owning_organisation: organisation_2)
          expect(lettings_log.reload.scheme_id).to eq(scheme.id)
        end
      end
    end

    context "when the log is unresolved" do
      before do
        lettings_log.update!(unresolved: true)
      end

      context "and the new startdate triggers void date validation" do
        it "clears void date value" do
          lettings_log.update!(startdate: Time.zone.yesterday)
          lettings_log.reload
          expect(lettings_log.startdate).to eq(Time.zone.yesterday)
          expect(lettings_log.voiddate).to eq(nil)
        end

        it "does not impact other validations" do
          expect { lettings_log.update!(startdate: Time.zone.yesterday, first_time_property_let_as_social_housing: 0, rsnvac: 16) }
            .to raise_error(ActiveRecord::RecordInvalid, /Enter a reason for vacancy that is not 'first let' if unit has been previously let as social housing/)
        end
      end

      context "and the new startdate triggers major repairs date validation" do
        it "clears major repairs date value" do
          lettings_log.update!(startdate: Time.zone.yesterday)
          lettings_log.reload
          expect(lettings_log.startdate).to eq(Time.zone.yesterday)
          expect(lettings_log.mrcdate).to eq(nil)
        end
      end

      context "and the new location triggers the rent range validation" do
        it "clears rent values" do
          lettings_log.update!(location:, scheme:)
          lettings_log.reload
          expect(lettings_log.location).to eq(location)
          expect(lettings_log.brent).to eq(nil)
          expect(lettings_log.scharge).to eq(nil)
          expect(lettings_log.pscharge).to eq(nil)
          expect(lettings_log.supcharg).to eq(nil)
          expect(lettings_log.tcharge).to eq(nil)
        end

        it "does not impact other validations" do
          expect { lettings_log.update!(location:, scheme:, first_time_property_let_as_social_housing: 0, rsnvac: 16) }
            .to raise_error(ActiveRecord::RecordInvalid, /Enter a reason for vacancy that is not 'first let' if unit has been previously let as social housing/)
        end
      end
    end

    context "when the log is resolved" do
      context "and the new startdate triggers void date validation" do
        it "doesn't clear void date value" do
          expect { lettings_log.update!(startdate: Time.zone.yesterday) }.to raise_error(ActiveRecord::RecordInvalid, /Enter a void date that is before the tenancy start date/)
          expect(lettings_log.startdate).to eq(Time.zone.yesterday)
          expect(lettings_log.voiddate).to eq(Time.zone.today)
        end
      end

      context "and the new startdate triggers major repairs date validation" do
        it "doesn't clear major repairs date value" do
          expect { lettings_log.update!(startdate: Time.zone.yesterday) }.to raise_error(ActiveRecord::RecordInvalid, /Enter a major repairs date that is before the tenancy start date/)
          expect(lettings_log.startdate).to eq(Time.zone.yesterday)
          expect(lettings_log.mrcdate).to eq(Time.zone.today)
        end
      end

      context "and the new location triggers brent validation" do
        it "doesn't clear rent values" do
          expect { lettings_log.update!(location:, scheme:) }.to raise_error(ActiveRecord::RecordInvalid, /Rent is below the absolute minimum expected/)
          expect(lettings_log.brent).to eq(7.17)
          expect(lettings_log.scharge).to eq(1)
          expect(lettings_log.pscharge).to eq(1)
          expect(lettings_log.supcharg).to eq(1)
        end
      end
    end
  end

  describe "tshortfall_unknown?" do
    context "when tshortfall is nil" do
      let(:lettings_log) { FactoryBot.create(:lettings_log, :in_progress, tshortfall_known: nil) }

      it "returns false" do
        expect(lettings_log.tshortfall_unknown?).to be false
      end
    end

    context "when tshortfall is No" do
      let(:lettings_log) { FactoryBot.create(:lettings_log, :in_progress, tshortfall_known: 1) }

      it "returns false" do
        expect(lettings_log.tshortfall_unknown?).to be true
      end
    end

    context "when tshortfall is Yes" do
      let(:lettings_log) { FactoryBot.create(:lettings_log, :in_progress, tshortfall_known: 0) }

      it "returns false" do
        expect(lettings_log.tshortfall_unknown?).to be false
      end
    end
  end

  describe "paper trail" do
    let(:lettings_log) { FactoryBot.create(:lettings_log, :in_progress) }

    it "creates a record of changes to a log" do
      expect { lettings_log.update!(age1: 64) }.to change(lettings_log.versions, :count).by(1)
    end

    it "allows lettings logs to be restored to a previous version" do
      lettings_log.update!(age1: 63)
      expect(lettings_log.paper_trail.previous_version.age1).to eq(17)
    end
  end

  describe "soft values for period" do
    let(:lettings_log) { FactoryBot.create(:lettings_log) }

    before do
      LaRentRange.create!(
        ranges_rent_id: "1",
        la: "E07000223",
        beds: 1,
        lettype: 1,
        soft_min: 100,
        soft_max: 400,
        hard_min: 50,
        hard_max: 500,
        start_year: 2021,
      )

      lettings_log.la = "E07000223"
      lettings_log.lettype = 1
      lettings_log.beds = 1
      lettings_log.startdate = Time.zone.local(2021, 10, 10)
    end

    context "when period is weekly for 52 weeks" do
      it "returns weekly soft min for 52 weeks" do
        lettings_log.period = 1
        expect(lettings_log.soft_min_for_period).to eq("100.0 every week")
      end

      it "returns weekly soft max for 52 weeks" do
        lettings_log.period = 1
        expect(lettings_log.soft_max_for_period).to eq("400.0 every week")
      end
    end

    context "when period is weekly for 47 weeks" do
      it "returns weekly soft min for 47 weeks" do
        lettings_log.period = 8
        expect(lettings_log.soft_min_for_period).to eq("110.64 every week")
      end

      it "returns weekly soft max for 47 weeks" do
        lettings_log.period = 8
        expect(lettings_log.soft_max_for_period).to eq("442.55 every week")
      end
    end
  end

  describe "scopes" do
    let!(:lettings_log_1) { FactoryBot.create(:lettings_log, :in_progress, startdate: Time.utc(2021, 5, 3), created_by: created_by_user) }
    let!(:lettings_log_2) { FactoryBot.create(:lettings_log, :completed, startdate: Time.utc(2021, 5, 3), created_by: created_by_user) }

    before do
      Timecop.freeze(Time.utc(2022, 6, 3))
      FactoryBot.create(:lettings_log, startdate: Time.utc(2022, 6, 3))
    end

    after do
      Timecop.unfreeze
    end

    context "when searching logs" do
      let!(:lettings_log_to_search) { FactoryBot.create(:lettings_log, :completed) }

      before do
        FactoryBot.create_list(:lettings_log, 5, :completed)
      end

      describe "#filter_by_id" do
        it "allows searching by a log ID" do
          result = described_class.filter_by_id(lettings_log_to_search.id.to_s)
          expect(result.count).to eq(1)
          expect(result.first.id).to eq lettings_log_to_search.id
        end
      end

      describe "#filter_by_tenant_code" do
        it "allows searching by a Tenant Code" do
          result = described_class.filter_by_tenant_code(lettings_log_to_search.tenancycode)
          expect(result.count).to eq(1)
          expect(result.first.id).to eq lettings_log_to_search.id
        end

        context "when tenant_code has lower case letters" do
          let(:matching_tenant_code_lower_case) { lettings_log_to_search.tenancycode.downcase }

          it "allows searching by a Tenant Code" do
            result = described_class.filter_by_tenant_code(matching_tenant_code_lower_case)
            expect(result.count).to eq(1)
            expect(result.first.id).to eq lettings_log_to_search.id
          end
        end
      end

      describe "#filter_by_propcode" do
        it "allows searching by a Property Reference" do
          result = described_class.filter_by_propcode(lettings_log_to_search.propcode)
          expect(result.count).to eq(1)
          expect(result.first.id).to eq lettings_log_to_search.id
        end

        context "when propcode has lower case letters" do
          let(:matching_propcode_lower_case) { lettings_log_to_search.propcode.downcase }

          it "allows searching by a Property Reference" do
            result = described_class.filter_by_propcode(matching_propcode_lower_case)
            expect(result.count).to eq(1)
            expect(result.first.id).to eq lettings_log_to_search.id
          end
        end
      end

      describe "#filter_by_postcode" do
        it "allows searching by a Property Postcode" do
          result = described_class.filter_by_postcode(lettings_log_to_search.postcode_full)
          expect(result.count).to eq(1)
          expect(result.first.id).to eq lettings_log_to_search.id
        end

        context "when lettings log is supported housing" do
          let(:location) { FactoryBot.create(:location, postcode: "W6 0ST") }

          before do
            lettings_log_to_search.update!(needstype: 2, location:)
          end

          it "allows searching by a Property Postcode" do
            result = described_class.filter_by_location_postcode("W6 0ST")
            expect(result.count).to eq(1)
            expect(result.first.id).to eq lettings_log_to_search.id
          end
        end
      end

      describe "#search_by" do
        it "allows searching using ID" do
          result = described_class.search_by(lettings_log_to_search.id.to_s)
          expect(result.count).to eq(1)
          expect(result.first.id).to eq lettings_log_to_search.id
        end

        it "allows searching using tenancy code" do
          result = described_class.search_by(lettings_log_to_search.tenancycode)
          expect(result.count).to eq(1)
          expect(result.first.id).to eq lettings_log_to_search.id
        end

        it "allows searching by a Property Reference" do
          result = described_class.search_by(lettings_log_to_search.propcode)
          expect(result.count).to eq(1)
          expect(result.first.id).to eq lettings_log_to_search.id
        end

        it "allows searching by a Property Postcode" do
          result = described_class.search_by(lettings_log_to_search.postcode_full)
          expect(result.count).to eq(1)
          expect(result.first.id).to eq lettings_log_to_search.id
        end

        context "when lettings log is supported housing" do
          let(:location) { FactoryBot.create(:location, postcode: "W6 0ST") }

          before do
            lettings_log_to_search.update!(needstype: 2, location:)
          end

          it "allows searching by a Property Postcode" do
            result = described_class.search_by("W6 0ST")
            expect(result.count).to eq(1)
            expect(result.first.id).to eq lettings_log_to_search.id
          end
        end

        context "when postcode has spaces and lower case letters" do
          let(:matching_postcode_lower_case_with_spaces) { lettings_log_to_search.postcode_full.downcase.chars.insert(3, " ").join }

          it "allows searching by a Property Postcode" do
            result = described_class.search_by(matching_postcode_lower_case_with_spaces)
            expect(result.count).to eq(1)
            expect(result.first.id).to eq lettings_log_to_search.id
          end
        end
      end
    end

    context "when filtering by year" do
      before do
        Timecop.freeze(Time.utc(2021, 5, 3))
      end

      after do
        Timecop.unfreeze
      end

      it "allows filtering on a single year" do
        expect(described_class.filter_by_years(%w[2021]).count).to eq(2)
      end

      it "allows filtering by multiple years using OR" do
        expect(described_class.filter_by_years(%w[2021 2022]).count).to eq(3)
      end

      it "can filter by year(s) AND status" do
        expect(described_class.filter_by_years(%w[2021 2022]).filter_by_status("completed").count).to eq(1)
      end

      it "filters based on date boundaries correctly" do
        lettings_log_1.startdate = Time.zone.local(2022, 4, 1)
        lettings_log_1.save!(validate: false)
        lettings_log_2.startdate = Time.zone.local(2022, 3, 31)
        lettings_log_2.save!(validate: false)

        expect(described_class.filter_by_years(%w[2021]).count).to eq(1)
        expect(described_class.filter_by_years(%w[2022]).count).to eq(2)
      end
    end

    context "when filtering by organisation" do
      let(:organisation_1) { FactoryBot.create(:organisation) }
      let(:organisation_2) { FactoryBot.create(:organisation) }
      let(:organisation_3) { FactoryBot.create(:organisation) }

      before do
        FactoryBot.create(:lettings_log, :in_progress, owning_organisation: organisation_1, managing_organisation: organisation_1, created_by: nil)
        FactoryBot.create(:lettings_log, :completed, owning_organisation: organisation_1, managing_organisation: organisation_2, created_by: nil)
        FactoryBot.create(:lettings_log, :completed, owning_organisation: organisation_2, managing_organisation: organisation_1, created_by: nil)
        FactoryBot.create(:lettings_log, :completed, owning_organisation: organisation_2, managing_organisation: organisation_2, created_by: nil)
      end

      it "filters by given organisation" do
        expect(described_class.filter_by_organisation([organisation_1]).count).to eq(3)
        expect(described_class.filter_by_organisation([organisation_1, organisation_2]).count).to eq(4)
        expect(described_class.filter_by_organisation([organisation_3]).count).to eq(0)
      end
    end

    context "when filtering on status" do
      it "allows filtering on a single status" do
        expect(described_class.filter_by_status(%w[in_progress]).count).to eq(2)
      end

      it "allows filtering on multiple statuses" do
        expect(described_class.filter_by_status(%w[in_progress completed]).count).to eq(3)
      end
    end

    context "when filtering by user" do
      before do
        PaperTrail::Version.find_by(item_id: lettings_log_1.id, event: "create").update!(whodunnit: created_by_user.to_global_id.uri.to_s)
        PaperTrail::Version.find_by(item_id: lettings_log_2.id, event: "create").update!(whodunnit: created_by_user.to_global_id.uri.to_s)
      end

      it "allows filtering on current user" do
        expect(described_class.filter_by_user(%w[yours], created_by_user).count).to eq(2)
      end

      it "returns all logs when all logs selected" do
        expect(described_class.filter_by_user(%w[all], created_by_user).count).to eq(3)
      end

      it "returns all logs when all and your users selected" do
        expect(described_class.filter_by_user(%w[all yours], created_by_user).count).to eq(3)
      end
    end
  end

  describe "#retirement_age_for_person" do
    context "when a person gender is Male" do
      let(:lettings_log) { FactoryBot.build(:lettings_log, sex1: "M") }

      it "returns the expected retirement age" do
        expect(lettings_log.retirement_age_for_person_1).to eq(67)
      end

      it "returns the expected plural" do
        expect(lettings_log.plural_gender_for_person_1).to eq("male and non-binary people")
      end
    end

    context "when a person gender is Female" do
      let(:lettings_log) { FactoryBot.build(:lettings_log, sex2: "F") }

      it "returns the expected retirement age" do
        expect(lettings_log.retirement_age_for_person_2).to eq(60)
      end

      it "returns the expected plural" do
        expect(lettings_log.plural_gender_for_person_2).to eq("females")
      end
    end

    context "when a person gender is Non-Binary" do
      let(:lettings_log) { FactoryBot.build(:lettings_log, sex3: "X") }

      it "returns the expected retirement age" do
        expect(lettings_log.retirement_age_for_person_3).to eq(67)
      end

      it "returns the expected plural" do
        expect(lettings_log.plural_gender_for_person_3).to eq("male and non-binary people")
      end
    end

    context "when the person gender is not set" do
      let(:lettings_log) { FactoryBot.build(:lettings_log) }

      it "returns nil" do
        expect(lettings_log.retirement_age_for_person_3).to be_nil
      end

      it "returns the expected plural" do
        expect(lettings_log.plural_gender_for_person_3).to be_nil
      end
    end

    context "when a postcode contains unicode characters" do
      let(:lettings_log) { FactoryBot.build(:lettings_log, postcode_full: "SR81LS\u00A0") }

      it "triggers a validation error" do
        expect { lettings_log.save! }.to raise_error(ActiveRecord::RecordInvalid, /Enter a postcode in the correct format/)
      end
    end
  end

  describe "csv download" do
    let(:scheme) { FactoryBot.create(:scheme) }
    let(:location) { FactoryBot.create(:location, :export, scheme:, type_of_unit: 6, postcode: "SE11TE", startdate: Time.zone.local(2021, 10, 1)) }
    let(:user) { FactoryBot.create(:user, organisation: location.scheme.owning_organisation) }
    let(:expected_content) { csv_export_file.read }

    before do
      Timecop.freeze(Time.utc(2022, 6, 5))
      lettings_log = FactoryBot.create(:lettings_log, needstype: 2, scheme:, location:, owning_organisation: scheme.owning_organisation, created_by: user, rent_type: 2, startdate: Time.zone.local(2021, 10, 2))
      expected_content.sub!(/\{id\}/, lettings_log["id"].to_s)
      expected_content.sub!(/\{scheme_code\}/, "S#{scheme['id']}")
      expected_content.sub!(/\{scheme_service_name\}/, scheme["service_name"].to_s)
      expected_content.sub!(/\{scheme_sensitive\}/, scheme["sensitive"].to_s)
      expected_content.sub!(/\{scheme_primary_client_group\}/, scheme["primary_client_group"].to_s)
      expected_content.sub!(/\{scheme_secondary_client_group\}/, scheme["secondary_client_group"].to_s)
      expected_content.sub!(/\{scheme_support_type\}/, scheme["support_type"].to_s)
      expected_content.sub!(/\{scheme_intended_stay\}/, scheme["intended_stay"].to_s)
      expected_content.sub!(/\{location_code\}/, location["id"].to_s)
      expected_content.sub!(/\{location_startdate\}/, location["startdate"].to_s)
      expected_content.sub!(/\{scheme_id\}/, scheme["service_name"].to_s)
      expected_content.sub!(/\{location_id\}/, location["id"].to_s)
    end

    after do
      Timecop.unfreeze
    end

    context "with a support user" do
      let(:csv_export_file) { File.open("spec/fixtures/files/lettings_logs_download.csv", "r:UTF-8") }

      it "generates a correct csv from a lettings log" do
        expect(described_class.to_csv).to eq(expected_content)
      end
    end

    context "with a non support user" do
      let(:csv_export_file) { File.open("spec/fixtures/files/lettings_logs_download_non_support.csv", "r:UTF-8") }

      it "generates a correct csv from a lettings log" do
        expect(described_class.to_csv(user)).to eq(expected_content)
      end
    end
  end

  describe "#blank_invalid_non_setup_fields!" do
    context "when a setup field is invalid" do
      subject(:model) { described_class.new(needstype: 404) }

      it "does not blank it" do
        model.valid?
        expect { model.blank_invalid_non_setup_fields! }.not_to change(model, :needstype)
      end
    end

    context "when a non setup field is invalid" do
      subject(:model) { described_class.new(beds: 404) }

      it "blanks it" do
        model.valid?
        expect { model.blank_invalid_non_setup_fields! }.to change(model, :beds)
      end
    end
  end
end