refactor indexes

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

@@ -1,12 +1,12 @@
 class Form::Sales::Questions::PersonWorkingSituation < ::Form::Question
   def initialize(id, hsh, page)
     super
-    @check_answer_label = "Person #{PERSON_INDEX[page.id]}’s working situation"
-    @header = "Which of these best describes Person #{PERSON_INDEX[page.id]}’s working situation?"
+    @check_answer_label = "Person #{person_display_number}’s working situation"
+    @header = "Which of these best describes Person #{person_display_number}’s working situation?"
     @type = "radio"
     @page = page
     @answer_options = ANSWER_OPTIONS
-    @check_answers_card_number = CARD_INDEX[page.id]
+    @check_answers_card_number = person_database_number
   end
 
   ANSWER_OPTIONS = {
@@ -23,25 +23,23 @@ class Form::Sales::Questions::PersonWorkingSituation < ::Form::Question
     "9" => { "value" => "Child under 16" },
   }.freeze
 
-  CARD_INDEX = {
-    "person_1_working_situation" => 2,
-    "person_1_working_situation_joint_purchase" => 3,
-    "person_2_working_situation" => 3,
-    "person_2_working_situation_joint_purchase" => 4,
-    "person_3_working_situation" => 4,
-    "person_3_working_situation_joint_purchase" => 5,
-    "person_4_working_situation" => 5,
-    "person_4_working_situation_joint_purchase" => 6,
-  }.freeze
+  def person_database_number
+    PERSON_INDEX[id]
+  end
 
   PERSON_INDEX = {
-    "person_1_working_situation" => 1,
-    "person_1_working_situation_joint_purchase" => 1,
-    "person_2_working_situation" => 2,
-    "person_2_working_situation_joint_purchase" => 2,
-    "person_3_working_situation" => 3,
-    "person_3_working_situation_joint_purchase" => 3,
-    "person_4_working_situation" => 4,
-    "person_4_working_situation_joint_purchase" => 4,
+    "ecstat2" => 2,
+    "ecstat3" => 3,
+    "ecstat4" => 4,
+    "ecstat5" => 5,
+    "ecstat6" => 6,
   }.freeze
+
+  def person_display_number
+    joint_purchase? ? PERSON_INDEX[id] - 2 : PERSON_INDEX[id] - 1
+  end
+
+  def joint_purchase?
+    page.id.include?("_joint_purchase")
+  end
 end