// Copyright (c) 2014-2015, The Monero Project
// 
// All rights reserved.
// 
// Redistribution and use in source and binary forms, with or without modification, are
// permitted provided that the following conditions are met:
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// 1. Redistributions of source code must retain the above copyright notice, this list of
//    conditions and the following disclaimer.
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// 2. Redistributions in binary form must reproduce the above copyright notice, this list
//    of conditions and the following disclaimer in the documentation and/or other
//    materials provided with the distribution.
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// 3. Neither the name of the copyright holder nor the names of its contributors may be
//    used to endorse or promote products derived from this software without specific
//    prior written permission.
// 
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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// Parts of this file are originally copyright (c) 2012-2013 The Cryptonote developers

#pragma once

#include <string>

namespace tools
{
  class password_container
  {
  public:
    static const size_t max_password_size = 1024;

    password_container();
    password_container(std::string&& password);
    password_container(password_container&& rhs);
    ~password_container();

    void clear();
    bool empty() const { return m_empty; }
    const std::string& password() const { return m_password; }
    void password(std::string&& val) { m_password = std::move(val); m_empty = false; }
    bool read_password(const char *message = "password");

  private:
    bool read_from_file();
    bool read_from_tty();

  private:
    bool m_empty;
    std::string m_password;
  };
}
