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#ifndef THIRD_PARTY_BLINK_PUBLIC_COMMON_SECURITY_ADDRESS_SPACE_FEATURE_H_
#define THIRD_PARTY_BLINK_PUBLIC_COMMON_SECURITY_ADDRESS_SPACE_FEATURE_H_

#include <optional>

#include "services/network/public/mojom/ip_address_space.mojom-shared.h"
#include "third_party/blink/public/common/common_export.h"
#include "third_party/blink/public/mojom/use_counter/metrics/web_feature.mojom-shared.h"

namespace blink {

// Describes a type of fetch for the purposes of categorizing feature use.
enum class FetchType {
  // A document fetching a subresource (image, script, etc.).
  kSubresource,

  // A navigation from one document to the next.
  kNavigation,
};

// Returns the kAddressSpace* WebFeature enum value corresponding to a client
// in |client_address_space| fetching data from |response_address_space|, if
// any.
//
// |fetch_type| describes the fetch itself.
//
// |client_is_secure_context| specifies whether the client execution context is
// a secure context, as defined in:
// https://html.spec.whatwg.org/multipage/webappapis.html#secure-context
//
// Returns nullopt if the load is not a private network request, as defined in:
// https://wicg.github.io/private-network-access/#private-network-request
std::optional<mojom::WebFeature> BLINK_COMMON_EXPORT
AddressSpaceFeature(FetchType fetch_type,
                    network::mojom::IPAddressSpace client_address_space,
                    bool client_is_secure_context,
                    network::mojom::IPAddressSpace response_address_space);

}  // namespace blink

#endif  // THIRD_PARTY_BLINK_PUBLIC_COMMON_SECURITY_ADDRESS_SPACE_FEATURE_H_