Add guidance

app/models/form/sales/questions/deposit_amount.rb

@@ -13,6 +13,7 @@ class Form::Sales::Questions::DepositAmount < ::Form::Question
     @ownershipsch = ownershipsch
     @question_number = QUESTION_NUMBER_FROM_YEAR_AND_OWNERSHIP.fetch(form.start_date.year, QUESTION_NUMBER_FROM_YEAR_AND_OWNERSHIP.max_by { |k, _v| k }.last)[ownershipsch]
     @optional = optional
+    @top_guidance_partial = "financial_calculations_shared_ownership" if ownershipsch == 1
   end
 
   def derived?(log)

app/models/form/sales/questions/deposit_discount.rb

@@ -12,6 +12,7 @@ class Form::Sales::Questions::DepositDiscount < ::Form::Question
     @prefix = "£"
     @hint_text = "Enter the total cash discount given on the property being purchased through the Social HomeBuy scheme"
     @question_number = QUESTION_NUMBER_FROM_YEAR[form.start_date.year] || QUESTION_NUMBER_FROM_YEAR[QUESTION_NUMBER_FROM_YEAR.keys.max]
+    @top_guidance_partial = "financial_calculations_shared_ownership"
   end
 
   QUESTION_NUMBER_FROM_YEAR = { 2023 => 96, 2024 => 97 }.freeze

app/models/form/sales/questions/equity.rb

@@ -12,6 +12,7 @@ class Form::Sales::Questions::Equity < ::Form::Question
     @suffix = "%"
     @hint_text = "Enter the amount of initial equity held by the purchaser (for example, 25% or 50%)"
     @question_number = QUESTION_NUMBER_FROM_YEAR[form.start_date.year] || QUESTION_NUMBER_FROM_YEAR[QUESTION_NUMBER_FROM_YEAR.keys.max]
+    @top_guidance_partial = "financial_calculations_shared_ownership"
   end
 
   QUESTION_NUMBER_FROM_YEAR = { 2023 => 89, 2024 => 90 }.freeze

app/models/form/sales/questions/mortgage_amount.rb

@@ -12,6 +12,7 @@ class Form::Sales::Questions::MortgageAmount < ::Form::Question
     @hint_text = "Enter the amount of mortgage agreed with the mortgage lender. Exclude any deposits or cash payments. Numeric in pounds. Rounded to the nearest pound."
     @ownershipsch = ownershipsch
     @question_number = QUESTION_NUMBER_FROM_YEAR_AND_OWNERSHIP.fetch(form.start_date.year, QUESTION_NUMBER_FROM_YEAR_AND_OWNERSHIP.max_by { |k, _v| k }.last)[ownershipsch]
+    @top_guidance_partial = "financial_calculations_shared_ownership" if ownershipsch == 1
   end
 
   QUESTION_NUMBER_FROM_YEAR_AND_OWNERSHIP = {

app/models/form/sales/questions/value.rb

@@ -11,6 +11,7 @@ class Form::Sales::Questions::Value < ::Form::Question
     @prefix = "£"
     @hint_text = "Enter the full purchase price of the property before any discounts are applied. For shared ownership, enter the full purchase price paid for 100% equity (this is equal to the value of the share owned by the PRP plus the value bought by the purchaser)"
     @question_number = QUESTION_NUMBER_FROM_YEAR[form.start_date.year] || QUESTION_NUMBER_FROM_YEAR[QUESTION_NUMBER_FROM_YEAR.keys.max]
+    @top_guidance_partial = "financial_calculations_shared_ownership"
   end
 
   QUESTION_NUMBER_FROM_YEAR = { 2023 => 88, 2024 => 89 }.freeze

app/views/form/_numeric_question.html.erb

@@ -1,4 +1,4 @@
-<%= render partial: "form/guidance/#{question.top_guidance_partial}" if question.top_guidance? %>
+<%= render partial: "form/guidance/#{question.top_guidance_partial}", locals: { log: @log } if question.top_guidance? %>
 
 <%= f.govuk_text_field(
   question.id.to_sym,

app/views/form/guidance/_financial_calculations_shared_ownership.html.erb

@@ -0,0 +1,10 @@
+<%= govuk_details(summary_text: "How the financial values are calculated’") do %>
+  <p class="govuk-body">
+  The mortgage amount (<%= govuk_link_to "Q92", send("#{log.class.name.underscore}_#{log.form.get_question('mortgage', log).page.id}_path", log) %>),
+   cash deposit (<%= govuk_link_to "Q95", send("#{log.class.name.underscore}_#{log.form.get_question('deposit', log).page.id}_path", log) %>)
+   and cash discount (<%= govuk_link_to "Q97", send("#{log.class.name.underscore}_#{log.form.get_question('cashdis', log).page.id}_path", log) %>)
+   added together must equal
+   the purchase price (<%= govuk_link_to "Q88", send("#{log.class.name.underscore}_#{log.form.get_question('value', log).page.id}_path", log) %>)
+   multiplied by the percentage equity stake (<%= govuk_link_to "Q89", send("#{log.class.name.underscore}_#{log.form.get_question('equity', log).page.id}_path", log) %>)
+   </p>
+<% end %>