class Fanforce::Response

  def initialize(response, request, url, req_params)
    case response.code
      when 200, 201
        begin
          @raw_response = Fanforce::Utils.decode_json(response)
          if !@raw_response[:results].nil?
            @results = @raw_response[:results]
            @current_results = @raw_response[:current_results]
            @total_results = @raw_response[:total_results]
            @current_page = @raw_response[:current_page]
            @total_pages = @raw_response[:total_pages]
            if request.method == :get and @raw_response[:total_pages] > @raw_response[:current_page]
              next_page = @raw_response[:current_page] + 1
              @next_url = "#{url}?#{Fanforce::Utils.to_query_string(req_params.merge(page: next_page))}"
            end
            if request.method == :get and @raw_response[:current_page] > 1
              prev_page = @raw_response[:current_page] - 1
              @prev_url = "#{url}?#{Fanforce::Utils.to_query_string(req_params.merge(page: prev_page))}"
            end
          else
            @result = @raw_response
          end
        rescue
          raise
        end
      when 400
        raise Fanforce::BadRequestError.new(response, request, url, req_params)
      when 401
        raise Fanforce::Unauthorized.new(response, request, url, req_params)
      when 403
        raise Fanforce::ForbiddenError.new(response, request, url, req_params)
      when 404
        raise Fanforce::NotFoundError.new(response, request, url, req_params)
      when 422
        raise Fanforce::UnprocessableEntityError.new(response, request, url, req_params)
      else
        raise Fanforce::UnknownError.new(response, request, url, req_params)
    end
    response
  end

  def to_json
    to_hash.to_json
  end

  def to_hash
    @raw_response
  end

  def [](key)
    @raw_response[key]
  end

  def result
    @result || (raise NoMethodError, 'This API response returns more than 1 record. Try using "results".')
  end

  def results
    @results || (raise NoMethodError, 'This API response only returns 1 record. Try using "result".')
  end

  def total_results
    @total_results || 1
  end

  def current_results
    @current_results || 1
  end

  def current_page
    @current_page || 1
  end

  def total_pages
    @total_pages || 1
  end

  def prev_url
    @prev_url || nil
  end

  def next_url
    @next_url || nil
  end

end