module JSONAPI::Support::Pagination

def calculate_pagination_params
  number = page_params["number"]&.to_i || 1
  size = page_params["size"]&.to_i || JSONAPI.configuration.default_page_size
  size = [size, JSONAPI.configuration.max_page_size].min
  offset = (number - 1) * size
  [offset, size]
end