Consolidate credential_storage callback functions. Move all callback struct definitions in a central header file compiled as part of internal/platform/implementation:comm library.

PiperOrigin-RevId: 476186596

internal/platform/implementation/credential_callbacks.h

@@ -0,0 +1,68 @@
+// Copyright 2020 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     https://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#ifndef THIRD_PARTY_NEARBY_INTERNAL_PLATFORM_IMPLEMENTATION_CREDENTIAL_CALLBACKS_H_
+#define THIRD_PARTY_NEARBY_INTERNAL_PLATFORM_IMPLEMENTATION_CREDENTIAL_CALLBACKS_H_
+
+#include <functional>
+#include <string>
+#include <vector>
+
+#include "absl/strings/string_view.h"
+#include "internal/proto/credential.pb.h"
+
+namespace nearby {
+namespace presence {
+
+enum class CredentialOperationStatus {
+  kUnknown = 0,
+  kFailed = 1,
+  kSucceeded = 2,
+};
+
+struct CredentialSelector {
+  std::string manager_app_id;
+  std::string account_name;
+  ::nearby::internal::IdentityType identity_type;
+};
+
+enum PublicCredentialType {
+  kLocalPublicCredential = 1,
+  kRemotePublicCredential = 2,
+};
+
+struct GenerateCredentialsCallback {
+  std::function<void(std::vector<nearby::internal::PublicCredential>)>
+      credentials_generated_cb;
+};
+
+struct UpdateRemotePublicCredentialsCallback {
+  std::function<void(CredentialOperationStatus)> credentials_updated_cb;
+};
+
+struct GetPrivateCredentialsResultCallback {
+  std::function<void(std::vector<::nearby::internal::PrivateCredential>)>
+      credentials_fetched_cb;
+  std::function<void(CredentialOperationStatus)> get_credentials_failed_cb;
+};
+
+struct GetPublicCredentialsResultCallback {
+  std::function<void(std::vector<::nearby::internal::PublicCredential>)>
+      credentials_fetched_cb;
+  std::function<void(CredentialOperationStatus)> get_credentials_failed_cb;
+};
+}  // namespace presence
+}  // namespace nearby
+
+#endif  // THIRD_PARTY_NEARBY_INTERNAL_PLATFORM_IMPLEMENTATION_CREDENTIAL_CALLBACKS_H_