// Copyright (c) 2014-2016, 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:
// 
// 1. Redistributions of source code must retain the above copyright notice, this list of
//    conditions and the following disclaimer.
// 
// 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.
// 
// 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
// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// 
// Parts of this file are originally copyright (c) 2012-2013 The Cryptonote developers

#pragma once


#include <string>

//  Public interface for libwallet library
namespace Bitmonero {


/**
 * @brief Interface for wallet operations.
 *        TODO: check if /include/IWallet.h is still actual
 */
struct Wallet
{
   // TODO define wallet interface (decide what needed from wallet2)

    enum Status {
        Status_Ok,
        Status_Error
    };

    struct Listener
    {
        // TODO
    };

    virtual ~Wallet() = 0;
    virtual std::string seed() const = 0;
    virtual std::string getSeedLanguage() const = 0;
    virtual void setSeedLanguage(const std::string &arg) = 0;
    virtual void setListener(Listener * listener) = 0;
    //! returns wallet status (Status_Ok | Status_Error)
    virtual int status() const = 0;
    //! in case error status, returns error string
    virtual std::string errorString() const = 0;
    virtual bool setPassword(const std::string &password) = 0;
    virtual std::string address() const = 0;
    virtual bool store(const std::string &path) = 0;
};

/**
 * @brief WalletManager - provides functions to manage wallets
 */
struct WalletManager
{

    /*!
     * \brief  Creates new wallet
     * \param  path           Name of wallet file
     * \param  password       Password of wallet file
     * \param  language       Language to be used to generate electrum seed memo
     * \return                Wallet instance (Wallet::status() needs to be called to check if created successfully)
     */
    virtual Wallet * createWallet(const std::string &path, const std::string &password, const std::string &language) = 0;

    /*!
     * \brief  Opens existing wallet
     * \param  path           Name of wallet file
     * \param  password       Password of wallet file
     * \return                Wallet instance (Wallet::status() needs to be called to check if opened successfully)
     */
    virtual Wallet * openWallet(const std::string &path, const std::string &password) = 0;

    /*!
     * \brief  recovers existing wallet using memo (electrum seed)
     * \param  path           Name of wallet file to be created
     * \param  memo           memo (25 words electrum seed)
     * \return                Wallet instance (Wallet::status() needs to be called to check if recovered successfully)
     */
    virtual Wallet * recoveryWallet(const std::string &path, const std::string &memo) = 0;

    /*!
     * \brief Closes wallet. In case operation succeded, wallet object deleted. in case operation failed, wallet object not deleted
     * \param wallet        previously opened / created wallet instance
     * \return              None
     */
    virtual bool closeWallet(Wallet *wallet) = 0;

    //! checks if wallet with the given name already exists
    virtual bool walletExists(const std::string &path) = 0;

    virtual std::string errorString() const = 0;

};


struct WalletManagerFactory
{
    static WalletManager * getWalletManager();
};

}