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nearby/fastpair/pairing/pairer_broker.h
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2023-06-05 14:29:36 -07:00

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// 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_FASTPAIR_PAIRING_PAIRER_BROKER_H_
#define THIRD_PARTY_NEARBY_FASTPAIR_PAIRING_PAIRER_BROKER_H_
#include <optional>
#include "fastpair/common/fast_pair_device.h"
#include "fastpair/common/pair_failure.h"
namespace nearby {
namespace fastpair {
// The PairerBroker is the entry point for the Fast Pair Pairing component.
// It is responsible for brokering the 'pair to device' calls to
// the correct concrete Pairer implementation, and exposing an observer pattern
// for other components to become aware of pairing results.
class PairerBroker {
public:
class Observer {
public:
virtual ~Observer() = default;
virtual void OnHandshakeComplete(FastPairDevice& device) {}
virtual void OnDevicePaired(FastPairDevice& device) {}
virtual void OnAccountKeyWrite(FastPairDevice& device,
std::optional<PairFailure> error) {}
virtual void OnPairingComplete(FastPairDevice& device) {}
virtual void OnPairFailure(FastPairDevice& device, PairFailure failure) {}
};
virtual ~PairerBroker() = default;
virtual void AddObserver(Observer* observer) = 0;
virtual void RemoveObserver(Observer* observer) = 0;
virtual void PairDevice(FastPairDevice& device) = 0;
virtual bool IsPairing() = 0;
virtual void StopPairing() = 0;
};
} // namespace fastpair
} // namespace nearby
#endif // THIRD_PARTY_NEARBY_FASTPAIR_PAIRING_PAIRER_BROKER_H_