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module DerivedVariables::SalesLogVariables
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include DerivedVariables::SharedLogic
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def set_derived_fields!
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reset_invalidated_derived_values!(DEPENDENCIES)
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self.pregblank = 1 if no_buyer_organisation?
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self.ethnic = 17 if ethnic_refused?
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self.mscharge = nil if no_monthly_leasehold_charges?
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if exdate.present?
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self.exday = exdate.day
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self.exmonth = exdate.month
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self.exyear = exdate.year
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end
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if hodate.present?
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self.hoday = hodate.day
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self.homonth = hodate.month
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self.hoyear = hodate.year
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end
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if outright_sale?
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if mortgage_not_used?
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self.deposit = value
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elsif mortgage_use_unknown?
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self.deposit = nil
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elsif mortgageused_changed?(from: 2, to: 1)
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# Clear when switching mortgage used from no to yes
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self.deposit = nil
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end
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end
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if saledate && form.start_year_after_2024? && discounted_ownership_sale?
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self.ppostcode_full = postcode_full
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self.ppcodenk = 0 if postcode_full.present?
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self.prevloc = la
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self.is_previous_la_inferred = is_la_inferred
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self.previous_la_known = la_known
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end
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self.pcode1, self.pcode2 = postcode_full.split if postcode_full.present?
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self.ppostc1, self.ppostc2 = ppostcode_full.split if ppostcode_full.present?
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self.totchild = total_child
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self.totadult = total_adult + total_elder
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self.hhmemb = number_of_household_members
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self.hhtype = household_type
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if saledate && form.start_year_after_2024?
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self.soctenant = soctenant_from_prevten_values
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child_under_16_constraints!
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end
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self.uprn_known = 0 if address_answered_without_uprn?
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if uprn_known&.zero?
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self.uprn = nil
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end
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if uprn_known == 1 && uprn_confirmed&.zero?
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self.uprn = nil
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self.uprn_known = 0
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self.uprn_confirmed = nil
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self.address_line1 = nil
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self.address_line2 = nil
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self.town_or_city = nil
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self.county = nil
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self.pcodenk = nil
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self.postcode_full = nil
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self.la = nil
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end
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self.nationality_all = nationality_all_group if nationality_uk_or_prefers_not_to_say?
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self.nationality_all_buyer2 = nationality_all_buyer2_group if nationality2_uk_or_prefers_not_to_say?
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set_encoded_derived_values!(DEPENDENCIES)
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end
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private
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DEPENDENCIES = [
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{
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conditions: {
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buylivein: 2,
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},
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derived_values: {
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buy1livein: 2,
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},
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},
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{
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conditions: {
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buylivein: 2,
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jointpur: 1,
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},
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derived_values: {
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buy1livein: 2,
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buy2livein: 2,
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},
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},
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{
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conditions: {
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buylivein: 1,
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jointpur: 2,
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},
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derived_values: {
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buy1livein: 1,
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},
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},
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{
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conditions: {
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mortgageused: 2,
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},
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derived_values: {
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mortgage: 0,
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},
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},
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{
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conditions: {
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mortgageused: 3,
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},
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derived_values: {
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mortgage: nil,
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},
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},
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].freeze
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def number_of_household_members
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return unless hholdcount.present? && jointpur.present?
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number_of_buyers = joint_purchase? ? 2 : 1
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hholdcount + number_of_buyers
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end
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def total_elder
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ages = [age1, age2, age3, age4, age5, age6]
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ages.count { |age| age.present? && age >= 60 }
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end
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def total_child
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(2..6).count do |i|
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age = public_send("age#{i}")
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relat = public_send("relat#{i}")
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age.present? && (age < 20 && %w[C].include?(relat) || age < 18)
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end
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end
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def total_adult
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total = age1.present? && age1.between?(16, 59) ? 1 : 0
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total + (2..6).count do |i|
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age = public_send("age#{i}")
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relat = public_send("relat#{i}")
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age.present? && (age.between?(20, 59) || age.between?(18, 19) && relat != "C")
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end
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end
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def child_under_16_constraints!
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start_index = joint_purchase? ? 3 : 2
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(start_index..6).each do |idx|
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if age_under_16?(idx)
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self["ecstat#{idx}"] = 9
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end
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end
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end
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def household_type
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return unless total_elder && total_adult && totchild
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if only_one_elder?
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1
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elsif only_two_elders?
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2
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elsif only_one_adult?
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3
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elsif only_two_adults?
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4
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elsif one_adult_with_at_least_one_child?
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5
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elsif at_least_two_adults_with_at_least_one_child?
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6
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else
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9
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end
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end
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def at_least_two_adults_with_at_least_one_child?
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total_elder.zero? && total_adult >= 2 && totchild >= 1
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end
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def one_adult_with_at_least_one_child?
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total_elder.zero? && total_adult == 1 && totchild >= 1
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end
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def only_two_adults?
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total_elder.zero? && total_adult == 2 && totchild.zero?
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end
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def only_one_adult?
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total_elder.zero? && total_adult == 1 && totchild.zero?
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end
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def only_two_elders?
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total_elder == 2 && total_adult.zero? && totchild.zero?
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end
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def only_one_elder?
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total_elder == 1 && total_adult.zero? && totchild.zero?
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end
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def address_answered_without_uprn?
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[address_line1, town_or_city].all?(&:present?) && uprn.nil? && form.start_date.year >= 2023
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end
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def soctenant_from_prevten_values
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return unless prevten && shared_ownership_scheme?
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prevten_was_social_housing? ? 1 : 2
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end
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def prevten_was_social_housing?
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[1, 2].include?(prevten) || [1, 2].include?(prevtenbuy2)
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end
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end
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