ministryofjustice/Claim-for-Crown-Court-Defence

module ExternalUsers
  class ClaimTypesController < ExternalUsers::ApplicationController
    skip_load_and_authorize_resource

    before_action :set_available_claim_types_for_provider, only: %i[new create]
    before_action :enable_breadcrumb, only: %i[selection]

    def new
      if @available_claim_types.empty?
        redirect_to(
          external_users_claims_url,
          alert: t('external_users.claim_types.new.errors.claim_types_unavailable')
        ) && return
      end

      @claim_type = ClaimType.new

      track_visit(url: 'external_user/claim_types', title: 'Choose claim type')
      @available_claim_types.size > 1 ? render : redirect_to_claim_type(@available_claim_types.first)
    end

    def create
      @claim_type = ClaimType.new(claim_type_params[:claim_type])

      if @claim_type.valid?
        redirect_to_claim_type(@claim_type.id)
      else
        render :new
      end
    end

    def selection; end

    private

    def claim_type_params
      params.permit(claim_type: :id)
    end

    def redirect_to_claim_type(claim_type)
      redirect_to claim_type_redirect_url_for(claim_type)
    end

    def set_available_claim_types_for_provider
      context = Claims::ContextMapper.new(current_user.persona)
      @available_claim_types = context.available_comprehensive_claim_types
    end

    def claim_type_redirect_url_for(claim_type)
      {
        'agfs' => new_advocates_claim_url,
        'agfs_interim' => new_advocates_interim_claim_url,
        'agfs_supplementary' => new_advocates_supplementary_claim_url,
        'agfs_hardship' => new_advocates_hardship_claim_url,
        'lgfs_final' => new_litigators_claim_url,
        'lgfs_interim' => new_litigators_interim_claim_url,
        'lgfs_transfer' => new_litigators_transfer_claim_url,
        'lgfs_hardship' => new_litigators_hardship_claim_url
      }[claim_type.to_s]
    end
  end
end