// Copyright (c) 2017 The Zcash developers
// Copyright (c) 2016-2020 The Hush developers

// Distributed under the GPLv3 software license, see the accompanying
// file COPYING or https://www.gnu.org/licenses/gpl-3.0.en.html

/******************************************************************************
 * Copyright © 2014-2019 The SuperNET Developers.                             *
 *                                                                            *
 * See the AUTHORS, DEVELOPER-AGREEMENT and LICENSE files at                  *
 * the top-level directory of this distribution for the individual copyright  *
 * holder information and the developer policies on copyright and licensing.  *
 *                                                                            *
 * Unless otherwise agreed in a custom licensing agreement, no part of the    *
 * SuperNET software, including this file may be copied, modified, propagated *
 * or distributed except according to the terms contained in the LICENSE file *
 *                                                                            *
 * Removal or modification of this copyright notice is prohibited.            *
 *                                                                            *
 ******************************************************************************/

#ifndef ASYNCRPCOPERATION_MERGETOADDRESS_H
#define ASYNCRPCOPERATION_MERGETOADDRESS_H

#include "amount.h"
#include "asyncrpcoperation.h"
#include "primitives/transaction.h"
#include "transaction_builder.h"
#include "wallet.h"
#include "zcash/Address.hpp"
#include "zcash/JoinSplit.hpp"

#include <array>
#include <tuple>
#include <unordered_map>

#include <univalue.h>

// Default transaction fee if caller does not specify one.
#define MERGE_TO_ADDRESS_OPERATION_DEFAULT_MINERS_FEE 10000

using namespace libzcash;

// Input UTXO is a tuple of txid, vout, amount, script
typedef std::tuple<COutPoint, CAmount, CScript> MergeToAddressInputUTXO;

typedef std::tuple<SaplingOutPoint, SaplingNote, CAmount, SaplingExpandedSpendingKey> MergeToAddressInputSaplingNote;

// A recipient is a tuple of address, memo (optional if zaddr)
typedef std::tuple<std::string, std::string> MergeToAddressRecipient;


class AsyncRPCOperation_mergetoaddress : public AsyncRPCOperation
{
public:
    AsyncRPCOperation_mergetoaddress(
                                     boost::optional<TransactionBuilder> builder,
                                     CMutableTransaction contextualTx,
                                     std::vector<MergeToAddressInputUTXO> utxoInputs,
                                     std::vector<MergeToAddressInputSaplingNote> saplingNoteInputs,
                                     MergeToAddressRecipient recipient,
                                     CAmount fee = MERGE_TO_ADDRESS_OPERATION_DEFAULT_MINERS_FEE,
                                     UniValue contextInfo = NullUniValue);
    virtual ~AsyncRPCOperation_mergetoaddress();
    
    // We don't want to be copied or moved around
    AsyncRPCOperation_mergetoaddress(AsyncRPCOperation_mergetoaddress const&) = delete;            // Copy construct
    AsyncRPCOperation_mergetoaddress(AsyncRPCOperation_mergetoaddress&&) = delete;                 // Move construct
    AsyncRPCOperation_mergetoaddress& operator=(AsyncRPCOperation_mergetoaddress const&) = delete; // Copy assign
    AsyncRPCOperation_mergetoaddress& operator=(AsyncRPCOperation_mergetoaddress&&) = delete;      // Move assign
    
    virtual void main();
    
    virtual UniValue getStatus() const;
    
    bool testmode = false; // Set to true to disable sending txs and generating proofs
    
private:
    friend class TEST_FRIEND_AsyncRPCOperation_mergetoaddress; // class for unit testing
    
    UniValue contextinfo_; // optional data to include in return value from getStatus()
    
    bool isUsingBuilder_; // Indicates that no Sprout addresses are involved
    uint32_t consensusBranchId_;
    CAmount fee_;
    int mindepth_;
    MergeToAddressRecipient recipient_;
    bool isToTaddr_;
    bool isToZaddr_;
    CTxDestination toTaddr_;
    PaymentAddress toPaymentAddress_;
    
    uint256 joinSplitPubKey_;
    unsigned char joinSplitPrivKey_[crypto_sign_SECRETKEYBYTES];
    
    std::vector<MergeToAddressInputUTXO> utxoInputs_;
    std::vector<MergeToAddressInputSaplingNote> saplingNoteInputs_;
    
    TransactionBuilder builder_;
    CTransaction tx_;
    
    std::array<unsigned char, HUSH_MEMO_SIZE> get_memo_from_hex_string(std::string s);
    bool main_impl();
    
    void sign_send_raw_transaction(UniValue obj); // throws exception if there was an error
    
    void lock_utxos();
    
    void unlock_utxos();
    
    void lock_notes();
    
    void unlock_notes();
    
};


// To test private methods, a friend class can act as a proxy
class TEST_FRIEND_AsyncRPCOperation_mergetoaddress
{
public:
    std::shared_ptr<AsyncRPCOperation_mergetoaddress> delegate;
    
    TEST_FRIEND_AsyncRPCOperation_mergetoaddress(std::shared_ptr<AsyncRPCOperation_mergetoaddress> ptr) : delegate(ptr) {}
    
    CTransaction getTx()
    {
        return delegate->tx_;
    }
    
    void setTx(CTransaction tx)
    {
        delegate->tx_ = tx;
    }
    
    // Delegated methods
    
    std::array<unsigned char, HUSH_MEMO_SIZE> get_memo_from_hex_string(std::string s)
    {
        return delegate->get_memo_from_hex_string(s);
    }
    
    bool main_impl()
    {
        return delegate->main_impl();
    }
    
    void sign_send_raw_transaction(UniValue obj)
    {
        delegate->sign_send_raw_transaction(obj);
    }
    
    void set_state(OperationStatus state)
    {
        delegate->state_.store(state);
    }
};


#endif /* ASYNCRPCOPERATION_MERGETOADDRESS_H */