fake_presence_client.h

// Copyright 2023 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_PRESENCE_FAKE_PRESENCE_CLIENT_H_
#define THIRD_PARTY_NEARBY_PRESENCE_FAKE_PRESENCE_CLIENT_H_

#include <optional>
#include <vector>

#include "absl/status/statusor.h"
#include "presence/broadcast_request.h"
#include "presence/presence_client.h"
#include "presence/presence_device.h"
#include "presence/scan_request.h"

namespace nearby {
namespace presence {

class FakePresenceClient : public PresenceClient {
 public:
  FakePresenceClient() = default;
  FakePresenceClient(const FakePresenceClient&) = delete;
  FakePresenceClient(FakePresenceClient&&) = default;
  FakePresenceClient& operator=(const FakePresenceClient&) = delete;
  ~FakePresenceClient() = default;

  absl::StatusOr<ScanSessionId> StartScan(ScanRequest scan_request,
                                          ScanCallback callback) override;

  void StopScan(ScanSessionId session_id) override;

  // Not Implemented.
  absl::StatusOr<BroadcastSessionId> StartBroadcast(
      BroadcastRequest broadcast_request, BroadcastCallback callback) override {
    return 0;
  }

  // Not Implemented.
  void StopBroadcast(BroadcastSessionId session_id) override {}

  // Not Implemented.
  std::optional<PresenceDevice> GetLocalDevice() override {
    return std::nullopt;
  }


  std::vector<uint64_t> GetActiveScanSessions();
  void CallStartScanCallback(absl::Status status);
  void CallOnDiscovered(PresenceDevice device);
  void CallOnUpdated(PresenceDevice device);
  void CallOnLost(PresenceDevice device);

 private:
  uint64_t current_scan_session_id_;
  ScanCallback callback_;
  std::vector<uint64_t> active_scan_sessions_;
};

}  // namespace presence
}  // namespace nearby

#endif  // THIRD_PARTY_NEARBY_PRESENCE_FAKE_PRESENCE_CLIENT_H_