OTStash.cpp

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/************************************************************
 *
 *  OTStash.cpp
 *
 */

/************************************************************
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 *                 OPEN TRANSACTIONS
 *
 *       Financial Cryptography and Digital Cash
 *       Library, Protocol, API, Server, CLI, GUI
 *
 *       -- Anonymous Numbered Accounts.
 *       -- Untraceable Digital Cash.
 *       -- Triple-Signed Receipts.
 *       -- Cheques, Vouchers, Transfers, Inboxes.
 *       -- Basket Currencies, Markets, Payment Plans.
 *       -- Signed, XML, Ricardian-style Contracts.
 *       -- Scripted smart contracts.
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 *  Copyright (C) 2010-2013 by "Fellow Traveler" (A pseudonym)
 *
 *  EMAIL:
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 *  BITCOIN:  1NtTPVVjDsUfDWybS4BwvHpG2pdS9RnYyQ
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 *  https://github.com/FellowTraveler/Open-Transactions/wiki
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 *  WEBSITE:
 *  http://www.OpenTransactions.org/
 *
 *  Components and licensing:
 *   -- Moneychanger..A Java client GUI.....LICENSE:.....GPLv3
 *   -- otlib.........A class library.......LICENSE:...LAGPLv3
 *   -- otapi.........A client API..........LICENSE:...LAGPLv3
 *   -- opentxs/ot....Command-line client...LICENSE:...LAGPLv3
 *   -- otserver......Server Application....LICENSE:....AGPLv3
 *  Github.com/FellowTraveler/Open-Transactions/wiki/Components
 *
 *  All of the above OT components were designed and written by
 *  Fellow Traveler, with the exception of Moneychanger, which
 *  was contracted out to Vicky C ([email protected]).
 *  The open-source community has since actively contributed.
 *
 *  -----------------------------------------------------
 *
 *   LICENSE:
 *   This program is free software: you can redistribute it
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 *   General Public License as published by the Free Software
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 *   See Lucre on Github:  https://github.com/benlaurie/lucre
 *   -----------------------------------------------------
 *   You should have received a copy of the GNU Affero General
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 **************************************************************/

#include "stdafx.hpp"

#include "OTStash.hpp"

#include "OTContract.hpp"
#include "OTLog.hpp"
#include "OTStashItem.hpp"
#include "OTStorage.hpp"

#include <irrxml/irrXML.hpp>

namespace opentxs
{

void OTStash::Serialize(OTString& strAppend) const
{
    strAppend.Concatenate("<stash name=\"%s\" count=\"%d\" >\n\n",
                          m_str_stash_name.c_str(), m_mapStashItems.size());

    for (auto& it : m_mapStashItems) {
        const std::string str_asset_type_id = it.first;
        OTStashItem* pStashItem = it.second;
        OT_ASSERT((str_asset_type_id.size() > 0) && (nullptr != pStashItem));

        strAppend.Concatenate(
            "<stashItem assetTypeID=\"%s\" balance=\"%lld\" />\n\n",
            pStashItem->GetAssetTypeID().Get(), pStashItem->GetAmount());
    }

    strAppend.Concatenate("</stash>\n\n");
}

int32_t OTStash::ReadFromXMLNode(irr::io::IrrXMLReader*& xml,
                                 const OTString& strStashName,
                                 const OTString& strItemCount)
{
    if (!strStashName.Exists()) {
        otErr << "OTStash::ReadFromXMLNode: Failed: Empty stash 'name' "
                 "attribute.\n";
        return (-1);
    }

    m_str_stash_name = strStashName.Get();

    //
    // Load up the stash items.
    //
    int32_t nCount = strItemCount.Exists() ? atoi(strItemCount.Get()) : 0;
    if (nCount > 0) {
        while (nCount-- > 0) {
            //            xml->read();
            if (!OTContract::SkipToElement(xml)) {
                otOut << "OTStash::ReadFromXMLNode: Failure: Unable to find "
                         "expected element.\n";
                return (-1);
            }

            if ((xml->getNodeType() == irr::io::EXN_ELEMENT) &&
                (!strcmp("stashItem", xml->getNodeName()))) {
                OTString strAssetTypeID = xml->getAttributeValue(
                    "assetTypeID"); // Asset Type ID of this account.
                OTString strAmount = xml->getAttributeValue(
                    "balance"); // Account ID for this account.

                if (!strAssetTypeID.Exists() || !strAmount.Exists()) {
                    otErr << "OTStash::ReadFromXMLNode: Error loading "
                             "stashItem: Either the assetTypeID ("
                          << strAssetTypeID << "), or the balance ("
                          << strAmount << ") was EMPTY.\n";
                    return (-1);
                }

                if (!CreditStash(strAssetTypeID.Get(),
                                 atol(strAmount.Get()))) // <===============
                {
                    otErr << "OTStash::ReadFromXMLNode: Failed crediting "
                             "stashItem for stash " << strStashName
                          << ". assetTypeID (" << strAssetTypeID
                          << "), balance (" << strAmount << ").\n";
                    return (-1);
                }

                // (Success)
            }
            else {
                otErr << "OTStash::ReadFromXMLNode: Expected stashItem "
                         "element.\n";
                return (-1); // error condition
            }
        } // while
    }

    if (!OTContract::SkipAfterLoadingField(xml)) // </stash>
    {
        otOut << "*** OTStash::ReadFromXMLNode: Bad data? Expected "
                 "EXN_ELEMENT_END here, but "
                 "didn't get it. Returning -1.\n";
        return (-1);
    }

    return 1;
}

OTStash::OTStash()
{
    // m_mapStashItems
}

OTStash::OTStash(const OTString& strAssetTypeID, int64_t lAmount)
{
    OTStashItem* pItem = new OTStashItem(strAssetTypeID, lAmount);
    OT_ASSERT(nullptr != pItem);

    m_mapStashItems.insert(
        std::pair<std::string, OTStashItem*>(strAssetTypeID.Get(), pItem));
}

OTStash::OTStash(const OTIdentifier& theAssetTypeID, int64_t lAmount)
{
    OTStashItem* pItem = new OTStashItem(theAssetTypeID, lAmount);
    OT_ASSERT(nullptr != pItem);

    OTString strAssetTypeID(theAssetTypeID);

    m_mapStashItems.insert(
        std::pair<std::string, OTStashItem*>(strAssetTypeID.Get(), pItem));
}

OTStash::~OTStash()
{
    while (!m_mapStashItems.empty()) {
        OTStashItem* pTemp = m_mapStashItems.begin()->second;
        OT_ASSERT(nullptr != pTemp);
        delete pTemp;
        pTemp = nullptr;
        m_mapStashItems.erase(m_mapStashItems.begin());
    }
}

// Creates it if it's not already there.
// (*this owns it and will clean it up when destroyed.)
//
OTStashItem* OTStash::GetStash(const std::string& str_asset_type_id)
{
    auto it = m_mapStashItems.find(str_asset_type_id);

    if (m_mapStashItems.end() ==
        it) // It's not already there for this asset type.
    {
        const OTString strAssetTypeID(str_asset_type_id.c_str());
        OTStashItem* pStashItem = new OTStashItem(strAssetTypeID);
        OT_ASSERT(nullptr != pStashItem);

        m_mapStashItems.insert(std::pair<std::string, OTStashItem*>(
            strAssetTypeID.Get(), pStashItem));
        return pStashItem;
    }

    OTStashItem* pStashItem = it->second;
    OT_ASSERT(nullptr != pStashItem);

    return pStashItem;
}

int64_t OTStash::GetAmount(std::string str_asset_type_id)
{
    OTStashItem* pStashItem =
        GetStash(str_asset_type_id); // (Always succeeds, and will OT_ASSERT()
                                     // if failure.)

    return pStashItem->GetAmount();
}

bool OTStash::CreditStash(std::string str_asset_type_id, const int64_t& lAmount)
{
    OTStashItem* pStashItem =
        GetStash(str_asset_type_id); // (Always succeeds, and will OT_ASSERT()
                                     // if failure.)

    return pStashItem->CreditStash(lAmount);
}

bool OTStash::DebitStash(std::string str_asset_type_id, const int64_t& lAmount)
{
    OTStashItem* pStashItem =
        GetStash(str_asset_type_id); // (Always succeeds, and will OT_ASSERT()
                                     // if failure.)

    return pStashItem->DebitStash(lAmount);
}

} // namespace opentxs