class RailsParamValidation::RoutingHelper

def self.build_path(formatter, include_format:)
  parts = formatter.instance_variable_get(:@parts).map do |part|
    case part
    when String
      part
    when ActionDispatch::Journey::Format::Parameter
      "{#{part.name}}"
    when ActionDispatch::Journey::Format
      if include_format
        build_path(part, include_format: true)
      else
        nil
      end
    else
      nil
    end
  end
  parts.reject(&:nil?).join
end

def self.routes_for(controller, action)
  routes = []
  Rails.application.routes.routes.each do |route|
    if route.defaults[:controller] == controller && route.defaults[:action] == action
      path = RoutingHelper.build_path(route.path.build_formatter, include_format: !RailsParamValidation.openapi.skip_format_endpoints)
      routes.push(path: path, method: route.verb)
    end
  end
  routes
end