simplified_expenses_checker_flow.rb

class SimplifiedExpensesCheckerFlow < SmartAnswer::Flow
  def define
    content_id "8ad76560-8a27-42ee-9a99-8aaa8f0109a5"
    name "simplified-expenses-checker"
    status :published

    # Q1 - vehicle expense
    radio :vehicle_expense? do
      option :car
      option :van
      option :motorcycle
      option :no_vehicle

      on_response do |response|
        self.calculator = SmartAnswer::Calculators::SimplifiedExpensesCheckerCalculator.new
        calculator.type_of_vehicle = response
      end

      next_node do
        question :home_or_business_premises_expense?
      end
    end

    # Q2 - home or business premises expense
    radio :home_or_business_premises_expense? do
      option :using_home_for_business
      option :live_on_business_premises
      option :no_expense

      on_response do |response|
        calculator.business_premises_expense = response
      end

      next_node do |response|
        calculator.business_premises_expense = response
        if response == "no_expense" &&
            calculator.type_of_vehicle == "no_vehicle"
          outcome :you_cant_use_result
        else
          raise SmartAnswer::InvalidResponse if response =~ /live_on_business_premises.*?using_home_for_business/

          if calculator.vehicle?
            question :which_tax_year?
          elsif calculator.working_from_home?
            question :hours_work_home?
          elsif calculator.living_on_business_premises?
            question :deduct_from_premises?
          end
        end
      end
    end

    # Q3 - which tax year?
    radio :which_tax_year? do
      option :'2026-2027'
      option :'2025-2026'
      option :'2024-2025'
      option :'2023-2024'
      option :'2022-2023'

      on_response do |response|
        calculator.tax_year = response
      end

      next_node do
        question :buying_new_vehicle?
      end
    end

    # Q4 - buying new vehicle?
    radio :buying_new_vehicle? do
      option :new
      option :used
      option :no

      on_response do |response|
        calculator.new_or_used_vehicle = response
      end

      next_node do |response|
        if %w[new used].include?(response)
          question :how_much_expect_to_claim?
        else
          question :capital_allowances?
        end
      end
    end

    # Q5 - capital allowances claimed?
    # if yes => go to Result 3 if in Q1 only [car_van] and/or [motorcylce] was selected
    #
    # if yes and other expenses apart from cars and/or motorbikes selected in Q1 store as capital_allowance_claimed and add text to result (see result 2) and go to questions for other expenses, ie don't go to Q4 & Q8
    #
    # if no go to Q4
    radio :capital_allowances? do
      option :capital_allowance
      option :simplified_expenses
      option :no

      on_response do |response|
        calculator.selected_allowance = response
      end

      next_node do |response|
        calculator.selected_allowance = response
        if calculator.capital_allowance?
          if calculator.vehicle_only?
            outcome :capital_allowance_result
          elsif calculator.home?
            question :hours_work_home?
          elsif calculator.business_premises?
            question :deduct_from_premises?
          end
        elsif calculator.simplified_expenses?
          if calculator.vehicle_only?
            outcome :you_cant_claim_capital_allowance
          elsif calculator.home?
            question :hours_work_home?
          elsif calculator.business_premises?
            question :deduct_from_premises?
          end
        elsif calculator.no_allowance?
          if calculator.van? || calculator.motorcycle?
            question :how_much_expect_to_claim?
          elsif calculator.car?
            question :car_status_before_usage?
          end
        end
      end
    end

    # Q6 - Was your car new or second-hand when you started using it for your business?
    radio :car_status_before_usage? do
      option :new
      option :used

      on_response do |response|
        calculator.car_status_before_usage = response
      end

      next_node do
        question :how_much_expect_to_claim?
      end
    end

    # Q7 - claim vehicle expenses
    money_question :how_much_expect_to_claim? do
      on_response do |response|
        calculator.vehicle_costs = response
      end

      next_node do
        if calculator.car?
          question :is_vehicle_green?
        elsif calculator.van? || calculator.motorcycle?
          question :price_of_vehicle?
        end
      end
    end

    # Q8 - is vehicle green?
    radio :is_vehicle_green? do
      option :low
      option :medium
      option :high

      on_response do |response|
        calculator.vehicle_emission = case response
                                      when "low"
                                        if calculator.new_car?
                                          response
                                        else
                                          "medium"
                                        end
                                      else
                                        response
                                      end
      end

      next_node do
        question :price_of_vehicle?
      end
    end

    # Q9 - price of vehicle
    money_question :price_of_vehicle? do
      on_response do |response|
        calculator.vehicle_price = response
      end

      next_node do
        question :vehicle_business_use_time?
      end
    end

    # Q10 - vehicle private use time
    value_question :vehicle_business_use_time?, parse: :to_f do
      # deduct percentage amount from [high_reimbursement_cost] or [medium_reimbursement_cost] and store as [high_reimbursement_write_off] or [medium_reimbursement_write_off]

      on_response do |response|
        calculator.business_use_percent = response
      end

      next_node do |response|
        raise SmartAnswer::InvalidResponse if response.to_i > 100

        if calculator.car? || calculator.van?
          question :drive_business_miles_car_van?
        else
          question :drive_business_miles_motorcycle?
        end
      end
    end

    # Q11 - miles to drive for business car_or_van
    value_question :drive_business_miles_car_van? do
      on_response do |response|
        calculator.business_miles_car_van = response
      end

      next_node do
        if calculator.working_from_home?
          question :hours_work_home?
        elsif calculator.living_on_business_premises?
          question :deduct_from_premises?
        else
          outcome :you_can_use_result
        end
      end
    end

    # Q12 - miles to drive for business motorcycle
    value_question :drive_business_miles_motorcycle? do
      on_response do |response|
        calculator.business_miles_motorcycle = response
      end

      next_node do
        if calculator.working_from_home?
          question :hours_work_home?
        elsif calculator.living_on_business_premises?
          question :deduct_from_premises?
        else
          outcome :you_can_use_result
        end
      end
    end

    # Q13 - hours for home work
    value_question :hours_work_home? do
      on_response do |response|
        calculator.hours_worked_home = response
      end

      next_node do |response|
        if response.to_f < 1
          raise SmartAnswer::InvalidResponse
        elsif response.to_f < 25
          outcome :you_cant_use_result
        else
          question :current_claim_amount_home?
        end
      end
    end

    # Q14 - how much do you claim?
    money_question :current_claim_amount_home? do
      on_response do |response|
        calculator.home_costs = response
      end

      next_node do
        outcome :you_can_use_result
      end
    end

    # Q15 = how much do you deduct from premises for private use?
    money_question :deduct_from_premises? do
      on_response do |response|
        calculator.business_premises_cost = response
      end

      next_node do
        question :people_live_on_premises?
      end
    end

    # Q16 - people who live on business premises?
    value_question :people_live_on_premises?, parse: :to_i do
      on_response do |response|
        calculator.hours_lived_on_business_premises = response
      end

      next_node do
        outcome :you_can_use_result
      end
    end

    outcome :you_cant_use_result
    outcome :you_can_use_result
    outcome :capital_allowance_result
    outcome :you_cant_claim_capital_allowance
  end
end