class EmployerSetupForm
  include ActiveModel::Model
  include ActiveModel::Attributes

  FIRST_STEP = "general_information"

  attribute :current_step, :string, default: FIRST_STEP
  attribute :general_information_data
  attribute :plans_data
  attribute :network_exceptions_data

  def initialize(params = {})
    unless self.steps.first == FIRST_STEP
        raise StepMisalignmentError, "FIRST_STEP does not match first entry in steps"
    end
    @general_information_data = EmployerSetupGeneralInformationForm.new(attributes[:general_information_data])
    @plans_data = EmployerSetupPlansForm.new(attributes[:plans_data])
    @network_exceptions_data = EmployerSetupNetworkExceptionsForm.new(attributes[:network_exceptions_data])
  end

  def steps
    %w[general_information plans network_exceptions summary]
  end

  def current_step_view
    "employer_setup/#{self.current_step}"
  end

  def next_step
    index = steps.index(current_step)
    if index && index < steps.length - 1
        if steps[index + 1] == 'network_exceptions' && general_information_data.number_of_additional_network_logos == 0
            steps[index + 2]
        else
            steps[index + 1]
        end
    end
  end

  def previous_step
    index = steps.index(current_step)
    steps[index - 1] if index && index > 0
  end

  def save
    if valid?
        pl_plan_key = attributes[:general_information_data][:pl_plan_key]
        EmployerSetupGeneralInformationForm.new(attributes[:general_information_data]).save
        EmployerSetupPlansForm.new(attributes[:plans_data]).save(pl_plan_key)
        EmployerSetupNetworkExceptionsForm.new(attributes[:network_exceptions_data]).save(pl_plan_key)
        true
    else
      false
    end
  end

end