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// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_AI_BUILT_IN_AI_LOGGER_H_
#define CHROME_BROWSER_AI_BUILT_IN_AI_LOGGER_H_
#include <string>
#include "base/logging.h"
#include "chrome/browser/optimization_guide/optimization_guide_keyed_service.h"
#include "components/optimization_guide/core/optimization_guide_common.mojom-shared.h"
#include "components/optimization_guide/core/optimization_guide_logger.h"
// Wrapper that logs a stream to OptimizationGuideLogger during destruction.
class AiLogMessage {
public:
AiLogMessage(const char* file, int line);
std::ostream& stream() { return stream_; }
inline ~AiLogMessage() { opt_guide_message_builder_ << stream_.str(); }
private:
std::ostringstream stream_;
OptimizationGuideLogger::LogMessageBuilder opt_guide_message_builder_;
};
// Log stream that logs to the optimization guide log
// (chrome://on-device-internals). The log only occurs when optimization guide
// logging is enabled. Otherwise, the stream is never evaluated nor logged. This
// log stream is intended for use by code layers connecting the optimization
// guide and higher level built-in AI features.
#define BUILT_IN_AI_LOGGER() \
LAZY_STREAM( \
AiLogMessage(__FILE__, __LINE__).stream(), \
OptimizationGuideLogger::GetInstance() && \
OptimizationGuideLogger::GetInstance()->ShouldEnableDebugLogs())
#endif // CHROME_BROWSER_AI_BUILT_IN_AI_LOGGER_H_
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