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// Copyright 2022 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_DEVICE_SIGNALS_CORE_BROWSER_SIGNALS_COLLECTOR_H_
#define COMPONENTS_DEVICE_SIGNALS_CORE_BROWSER_SIGNALS_COLLECTOR_H_
#include <unordered_set>
#include "base/functional/callback_forward.h"
namespace device_signals {
enum class SignalName;
enum class UserPermission;
struct SignalsAggregationRequest;
struct SignalsAggregationResponse;
class SignalsCollector {
public:
virtual ~SignalsCollector() = default;
// Returns true if `signal_name` is part of the set of signals supported by
// this collector.
virtual bool IsSignalSupported(SignalName signal_name) = 0;
// Returns the set of signal names that this collector can collect.
virtual const std::unordered_set<SignalName> GetSupportedSignalNames() = 0;
// Collects the signal named `signal_name` using parameters in `request`
// (if needed), sets the collected values on `response` and invokes
// `done_closure` when the signal is collected. `response` is owned by the
// caller who is responsible for keeping the value alive while the signal is
// being collected.
virtual void GetSignal(SignalName signal_name,
UserPermission permission,
const SignalsAggregationRequest& request,
SignalsAggregationResponse& response,
base::OnceClosure done_closure) = 0;
};
} // namespace device_signals
#endif // COMPONENTS_DEVICE_SIGNALS_CORE_BROWSER_SIGNALS_COLLECTOR_H_
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