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/*
    This file is part of cpp-ethereum.

    cpp-ethereum is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    Foobar is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with Foobar.  If not, see <http://www.gnu.org/licenses/>.
*/
/** @file state.cpp
 * @author Gav Wood <i@gavwood.com>
 * @date 2014
 * State test functions.
 */

#include <secp256k1.h>
#include <BlockChain.h>
#include <State.h>
using namespace std;
using namespace eth;

int stateTest()
{
    KeyPair me = sha3("Gav Wood");
    KeyPair myMiner = sha3("Gav's Miner");
//  KeyPair you = sha3("123");

    Defaults::setDBPath("/tmp");

    Overlay stateDB = State::openDB();
    BlockChain bc;
    State s(myMiner.address(), stateDB);

    cout << bc;

    // Sync up - this won't do much until we use the last state.
    s.sync(bc);

    cout << s;

    // Mine to get some ether!
    s.commitToMine(bc);
    while (s.mine(100).completed) {}
    bc.attemptImport(s.blockData(), stateDB);

    cout << bc;

    s.sync(bc);

    cout << s;

    // Inject a transaction to transfer funds from miner to me.
    bytes tx;
    {
        Transaction t;
        t.nonce = s.transactionsFrom(myMiner.address());
        t.fee = 0;
        t.value = 1000;         // 1e3 wei.
        t.receiveAddress = me.address();
        t.sign(myMiner.secret());
        assert(t.sender() == myMiner.address());
        tx = t.rlp();
    }
    s.execute(tx);

    cout << s;

    // Mine to get some ether and set in stone.
    s.commitToMine(bc);
    while (s.mine(100).completed) {}
    bc.attemptImport(s.blockData(), stateDB);

    cout << bc;

    s.sync(bc);

    cout << s;

    return 0;
}