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diff --git a/src/wallet/api/transaction_history.cpp b/src/wallet/api/transaction_history.cpp
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+++ b/src/wallet/api/transaction_history.cpp
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+// 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
+
+
+#include "transaction_history.h"
+#include "transaction_info.h"
+#include "wallet.h"
+
+#include "crypto/hash.h"
+#include "wallet/wallet2.h"
+
+
+#include <string>
+#include <list>
+
+using namespace epee;
+
+namespace Bitmonero {
+
+TransactionHistory::~TransactionHistory() {}
+
+
+TransactionHistoryImpl::TransactionHistoryImpl(WalletImpl *wallet)
+    : m_wallet(wallet)
+{
+
+}
+
+TransactionHistoryImpl::~TransactionHistoryImpl()
+{
+
+}
+
+int TransactionHistoryImpl::count() const
+{
+    return m_history.size();
+}
+
+TransactionInfo *TransactionHistoryImpl::transaction(const std::string &id) const
+{
+    return nullptr;
+}
+
+std::vector<TransactionInfo *> TransactionHistoryImpl::getAll() const
+{
+    return m_history;
+}
+
+void TransactionHistoryImpl::refresh()
+{
+    // TODO: configurable values;
+    uint64_t min_height = 0;
+    uint64_t max_height = (uint64_t)-1;
+
+    // delete old transactions;
+    for (auto t : m_history)
+        delete t;
+    m_history.clear();
+
+
+
+    // transactions are stored in wallet2:
+    // - confirmed_transfer_details   - out transfers
+    // - unconfirmed_transfer_details - pending out transfers
+    // - payment_details              - input transfers
+
+    // payments are "input transactions";
+    // one input transaction contains only one transfer. e.g. <transaction_id> - <100XMR>
+
+    std::list<std::pair<crypto::hash, tools::wallet2::payment_details>> in_payments;
+    m_wallet->m_wallet->get_payments(in_payments, min_height, max_height);
+    for (std::list<std::pair<crypto::hash, tools::wallet2::payment_details>>::const_iterator i = in_payments.begin(); i != in_payments.end(); ++i) {
+        const tools::wallet2::payment_details &pd = i->second;
+        std::string payment_id = string_tools::pod_to_hex(i->first);
+        if (payment_id.substr(16).find_first_not_of('0') == std::string::npos)
+            payment_id = payment_id.substr(0,16);
+        // TODO
+        TransactionInfoImpl * ti = new TransactionInfoImpl();
+        ti->m_paymentid = payment_id;
+        ti->m_amount    = pd.m_amount;
+        ti->m_direction = TransactionInfo::Direction_In;
+        ti->m_hash      = string_tools::pod_to_hex(pd.m_tx_hash);
+        ti->m_blockheight = pd.m_block_height;
+        // TODO:
+        // ti->m_timestamp = pd.m_timestamp;
+        m_history.push_back(ti);
+
+        /* output.insert(std::make_pair(pd.m_block_height, std::make_pair(true, (boost::format("%20.20s %s %s %s")
+                                                                                 % print_money(pd.m_amount)
+                                                                                 % string_tools::pod_to_hex(pd.m_tx_hash)
+                                                                                 % payment_id % "-").str()))); */
+    }
+
+    // confirmed output transactions
+    // one output transaction may contain more than one money transfer, e.g.
+    // <transaction_id>:
+    //    transfer1: 100XMR to <address_1>
+    //    transfer2: 50XMR  to <address_2>
+    //    fee: fee charged per transaction
+    //
+
+    std::list<std::pair<crypto::hash, tools::wallet2::confirmed_transfer_details>> out_payments;
+    m_wallet->m_wallet->get_payments_out(out_payments, min_height, max_height);
+
+    for (std::list<std::pair<crypto::hash, tools::wallet2::confirmed_transfer_details>>::const_iterator i = out_payments.begin();
+         i != out_payments.end(); ++i) {
+        
+        const crypto::hash &hash = i->first;
+        const tools::wallet2::confirmed_transfer_details &pd = i->second;
+        
+        uint64_t fee = pd.m_amount_in - pd.m_amount_out;
+        uint64_t change = pd.m_change == (uint64_t)-1 ? 0 : pd.m_change; // change may not be known
+        
+
+        std::string payment_id = string_tools::pod_to_hex(i->second.m_payment_id);
+        if (payment_id.substr(16).find_first_not_of('0') == std::string::npos)
+            payment_id = payment_id.substr(0,16);
+
+
+        TransactionInfoImpl * ti = new TransactionInfoImpl();
+        ti->m_paymentid = payment_id;
+        ti->m_amount = pd.m_amount_in - change - fee;
+        ti->m_fee    = fee;
+        ti->m_direction = TransactionInfo::Direction_Out;
+        ti->m_hash = string_tools::pod_to_hex(hash);
+        ti->m_blockheight = pd.m_block_height;
+
+        // single output transaction might contain multiple transfers
+        for (const auto &d: pd.m_dests) {
+            ti->m_transfers.push_back({d.amount, get_account_address_as_str(m_wallet->m_wallet->testnet(), d.addr)});
+        }
+        m_history.push_back(ti);
+    }
+
+    // unconfirmed output transactions
+    std::list<std::pair<crypto::hash, tools::wallet2::unconfirmed_transfer_details>> upayments;
+    m_wallet->m_wallet->get_unconfirmed_payments_out(upayments);
+    for (std::list<std::pair<crypto::hash, tools::wallet2::unconfirmed_transfer_details>>::const_iterator i = upayments.begin(); i != upayments.end(); ++i) {
+        const tools::wallet2::unconfirmed_transfer_details &pd = i->second;
+        const crypto::hash &hash = i->first;
+        uint64_t amount = 0;
+        cryptonote::get_inputs_money_amount(pd.m_tx, amount);
+        uint64_t fee = amount - get_outs_money_amount(pd.m_tx);
+        std::string payment_id = string_tools::pod_to_hex(i->second.m_payment_id);
+        if (payment_id.substr(16).find_first_not_of('0') == std::string::npos)
+            payment_id = payment_id.substr(0,16);
+        bool is_failed = pd.m_state == tools::wallet2::unconfirmed_transfer_details::failed;
+
+        TransactionInfoImpl * ti = new TransactionInfoImpl();
+        ti->m_paymentid = payment_id;
+        ti->m_amount = amount - pd.m_change;
+        ti->m_fee    = fee;
+        ti->m_direction = TransactionInfo::Direction_Out;
+        ti->m_failed = is_failed;
+        ti->m_pending = true;
+        ti->m_hash = string_tools::pod_to_hex(hash);
+        m_history.push_back(ti);
+    }
+
+}
+
+TransactionInfo *TransactionHistoryImpl::transaction(int index) const
+{
+    return nullptr;
+}
+
+}