class EmployerSetupController < ApplicationController
  def new
    @top_form = EmployerSetupForm.new(session[:employer_setup_data])
    case @top_form.current_step
    when 'general_information'
      @form = EmployerSetupGeneralInformationForm.new(session[:employer_setup_data]&.dig('general_information_data'))
    when 'plans'
      @form = EmployerSetupPlansForm.new(session[:employer_setup_data]&.dig('plans_data'))
    when 'network_exceptions'
      @form = EmployerSetupNetworkExceptionsForm.new(session[:employer_setup_data]&.dig('network_exceptions_data'))
    when 'summary'
      @form = @top_form
    end
    render @top_form.current_step_view
  end

  def create
    @top_form = EmployerSetupForm.new(session[:employer_setup_data])
    if @top_form.current_step != 'summary'
      if process_step(@top_form.current_step)
        session[:employer_setup_data]['current_step'] = @top_form.next_step
        redirect_to new_employer_setup_path
      else
        render @top_form.current_step_view
      end
    else
      if @top_form.save
        session.delete(:employer_setup_data)
        redirect_to root_path, notice: "Employer setup successfully!"
      else
        render @top_form.current_step_view
      end
    end

    case @top_form.current_step
    when 'general_information'
      @form = EmployerSetupGeneralInformationForm.new(general_information_params)
      if @form.valid?
        session[:employer_setup_data]['general_information_data'] = general_information_params
        session[:employer_setup_data]['current_step'] = @top_form.next_step
        redirect_to new_employer_setup_path
      else
        render @top_form.current_step_view
      end
    when 'plans'
      @form = EmployerSetupPlansForm.new(plans_params)
      if @form.valid?
        session[:employer_setup_data]['plans_data'] = plans_params
        session[:employer_setup_data]['current_step'] = @top_form.next_step
        redirect_to new_employer_setup_path
      else
        render @top_form.current_step_view
      end
    when 'network_exceptions'
      @form = EmployerSetupNetworkExceptionsForm.new(network_exceptions_params)
      if @form.valid?
        session[:employer_setup_data]['network_exceptions_data'] = network_exceptions_params
        session[:employer_setup_data]['current_step'] = @top_form.next_step
        redirect_to new_employer_setup_path
      else
        render @top_form.current_step_view
      end
    when 'summary'
      @form = EmployerSetupForm.new(session[:employer_setup_data])
      if @form.save
        session.delete(:employer_setup_data)
        redirect_to root_path, notice: "Employer setup successfully!"
      else
        render @top_form.current_step_view
      end
    end
  end

  def update
    @form = RegistrationForm.new(registration_params)

    if params[:back_button]
      @form.current_step = @form.previous_step
    elsif params[:skip_newsletter]
      @form.current_step = @form.next_step # Skip newsletter step
    end

    render :new
  end

  private

  def general_information_params
    params.require(:employer_setup_general_information_form).permit(
      :name,
      :employer_logo,
      :group_number,
      :dental,
      :pl_plan_key,
      :effect_date,
      :number_of_plans,
      :network,
      :number_of_additional_network_logos
    )
  end

  def plans_params
    params.require(:employer_setup_plans_form).permit(
      plans: permited_plans_keys,
      benefit_descs: benefit_sequence_keys
    )
  end

  def network_exceptions_params
    params.require(:employer_setup_network_exceptions_form).permit(
      network_exceptions: [:network_logo, exceptions: [:type, :value]],
    )
  end

  def process_step(step_name)
    form_name = "employer_setup_#{step_name}_form".camelize.constantize
    form_params_name = "#{step_name}_params".to_sym
    allowed_params = [:general_information_params, :plans_params, :network_exceptions_params]
    if allowed_params.include?(form_params_name)
      form_params = send(form_params_name)
      @form = form_name.new(form_params)
      if @form.valid?
        session[:employer_setup_data]["#{step_name}_data"] = form_params
        true
      else
        false
      end
    end
    false
  end





        session[:employer_setup_data]['current_step'] = @top_form.next_step
        redirect_to new_employer_setup_path
    else
      render @top_form.current_step_view
    end
  end

      when 'general_information'
      @form = EmployerSetupGeneralInformationForm.new(general_information_params)
      if @form.valid?
        session[:employer_setup_data]['general_information_data'] = general_information_params
        session[:employer_setup_data]['current_step'] = @top_form.next_step
        redirect_to new_employer_setup_path
      else
        render @top_form.current_step_view
      end

  # def employer_setup_params
  #   params.require(:employer_setup_form).permit(
  #     :current_step,
  #     :name,
  #     :employer_logo,
  #     :group_number,
  #     :pl_plan_key,
  #     :effect_date,
  #     :number_of_plans,
  #     :network,
  #     :number_of_additional_network_logos,
  #     network_exceptions: [:network_logo, exceptions: [:type, :value]],
  #     plans: permited_plans_keys,
  #     benefit_descs: benefit_sequence_keys
  #   )
  # end

  def benefit_sequence_keys
    (1..14).map { |i| i.to_s.to_sym }
  end

  def permited_plans_keys
    benefit_sequence_keys.push(:plan_id)
  end

  # def plans_params
  #   plans_keys = params[:plans]&.keys || []

  #   plans_keys.each_with_object({}) do |key, hash|
  #     if key == 'benefit_descs' || key.match?(/^plan_\d$/)
  #       hash[key.to_sym] = permited_plan_param_list
  #     end
  #   end
  # end

  # def permited_plan_param_list
  #   (1..14).map { |i| i.to_s.to_sym }.push(:plan_id)
  # end
end