src/media/audio/audio_core/shared/process_config_loader.h

// Copyright 2019 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef SRC_MEDIA_AUDIO_AUDIO_CORE_SHARED_PROCESS_CONFIG_LOADER_H_
#define SRC_MEDIA_AUDIO_AUDIO_CORE_SHARED_PROCESS_CONFIG_LOADER_H_

#include <lib/fpromise/result.h>

#include <optional>

#include "src/media/audio/audio_core/shared/process_config.h"

namespace media::audio {

class ProcessConfigLoader {
 public:
  // Loads a ProcessConfig from disk, defined according to audio_core_config_schema.jsx. The config
  // is expected to be correct and defined at build time. This will panic if the config file is
  // invalid.
  //
  // Returns the ProcessConfig if the file was present, or std::nullopt if the file was not present.
  static fpromise::result<ProcessConfig, std::string> LoadProcessConfig(const char* filename);

  // Parses a ProcessConfig from a given string, according audio_core_config_schema.jsx.
  static fpromise::result<ProcessConfig, std::string> ParseProcessConfig(const std::string& config);
};

}  // namespace media::audio

#endif  // SRC_MEDIA_AUDIO_AUDIO_CORE_SHARED_PROCESS_CONFIG_LOADER_H_