/*
 * Copyright (C) 2019 The Android Open Source Project
 *
 * 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
 *
 *      http://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.
 */
#pragma once

#include <string>
#include <vector>

#include "cuttlefish/common/libs/utils/result.h"

namespace cuttlefish {

class SystemImageDirFlag {
 public:
  static Result<SystemImageDirFlag> FromGlobalGflags();

  // Note: While most vectorized arguments are aligned with instance numbers
  // matching the instance_nums flag (or num_instances in the simple case),
  // since this is used to derive flag default values for other vectorized
  // flags, it is accessed directly by index instead.
  std::string ForIndex(size_t argument_index) const;

 private:
  explicit SystemImageDirFlag(std::vector<std::string> system_image_dirs);

  std::vector<std::string> system_image_dirs_;
};

}  // namespace cuttlefish