/*
 * Copyright (c) [2016] [ <ether.camp> ]
 * This file is part of the ethereumJ library.
 *
 * The ethereumJ library is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * The ethereumJ library 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 Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with the ethereumJ library. If not, see <http://www.gnu.org/licenses/>.
 */
package org.ethereum.config.blockchain;

import com.fasterxml.jackson.databind.ObjectMapper;
import org.ethereum.config.BlockchainConfig;
import org.ethereum.core.Block;
import org.ethereum.core.Repository;
import org.spongycastle.util.encoders.Hex;

import java.io.IOException;
import java.math.BigInteger;
import java.util.ArrayList;
import java.util.List;

/**
 * Created by Anton Nashatyrev on 18.07.2016.
 */
public class DaoHFConfig extends AbstractDaoConfig {

    private final List<byte[]> daoAccounts = new ArrayList<>();
    private final byte[] withdrawAccount = Hex.decode("bf4ed7b27f1d666546e30d74d50d173d20bca754");

    {
        supportFork = true;
    }

    public DaoHFConfig() {
        initDaoConfig(new HomesteadConfig(), ETH_FORK_BLOCK_NUMBER);
    }

    public DaoHFConfig(BlockchainConfig parent, long forkBlockNumber) {
        initDaoConfig(parent, forkBlockNumber);
    }

    @Override
    protected void initDaoConfig(BlockchainConfig parent, long forkBlockNumber) {
        super.initDaoConfig(parent, forkBlockNumber);
        try {
            ObjectMapper objectMapper = new ObjectMapper();
            DaoAcct[] daoAccts = objectMapper.readValue(accountsJson.replace('\'', '"'), DaoAcct[].class);
            for (DaoAcct daoAcct : daoAccts) {
                daoAccounts.add(Hex.decode(daoAcct.address.substring(2)));
                daoAccounts.add(Hex.decode(daoAcct.extraBalanceAccount.substring(2)));
            }
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
    }

    /**
     * Goal is to transfer balance from set of accounts to single refund one.
     * Accounts may not exists in tests. However refund account should be created anyway.
     */
    @Override
    public void hardForkTransfers(Block block, Repository repo) {
        if (block.getNumber() == forkBlockNumber) {
            repo.addBalance(withdrawAccount, BigInteger.ZERO);
            for (byte[] account : daoAccounts) {
                if (repo.isExist(account)) {
                    BigInteger balance = repo.getBalance(account);
                    repo.addBalance(account, balance.negate());
                    repo.addBalance(withdrawAccount, balance);
                }
            }
        }
    }

    private static class DaoAcct {
        public String address;
        public String extraBalanceAccount;
    }

    private static final String accountsJson = "" +
            "[  " +
            "   {  " +
            "      'address':'0xd4fe7bc31cedb7bfb8a345f31e668033056b2728'," +
            "      'extraBalanceAccount':'0xb3fb0e5aba0e20e5c49d252dfd30e102b171a425'" +
            "   }," +
            "   {  " +
            "      'address':'0x2c19c7f9ae8b751e37aeb2d93a699722395ae18f'," +
            "      'extraBalanceAccount':'0xecd135fa4f61a655311e86238c92adcd779555d2'" +
            "   }," +
            "   {  " +
            "      'address':'0x1975bd06d486162d5dc297798dfc41edd5d160a7'," +
            "      'extraBalanceAccount':'0xa3acf3a1e16b1d7c315e23510fdd7847b48234f6'" +
            "   }," +
            "   {  " +
            "      'address':'0x319f70bab6845585f412ec7724b744fec6095c85'," +
            "      'extraBalanceAccount':'0x06706dd3f2c9abf0a21ddcc6941d9b86f0596936'" +
            "   }," +
            "   {  " +
            "      'address':'0x5c8536898fbb74fc7445814902fd08422eac56d0'," +
            "      'extraBalanceAccount':'0x6966ab0d485353095148a2155858910e0965b6f9'" +
            "   }," +
            "   {  " +
            "      'address':'0x779543a0491a837ca36ce8c635d6154e3c4911a6'," +
            "      'extraBalanceAccount':'0x2a5ed960395e2a49b1c758cef4aa15213cfd874c'" +
            "   }," +
            "   {  " +
            "      'address':'0x5c6e67ccd5849c0d29219c4f95f1a7a93b3f5dc5'," +
            "      'extraBalanceAccount':'0x9c50426be05db97f5d64fc54bf89eff947f0a321'" +
            "   }," +
            "   {  " +
            "      'address':'0x200450f06520bdd6c527622a273333384d870efb'," +
            "      'extraBalanceAccount':'0xbe8539bfe837b67d1282b2b1d61c3f723966f049'" +
            "   }," +
            "   {  " +
            "      'address':'0x6b0c4d41ba9ab8d8cfb5d379c69a612f2ced8ecb'," +
            "      'extraBalanceAccount':'0xf1385fb24aad0cd7432824085e42aff90886fef5'" +
            "   }," +
            "   {  " +
            "      'address':'0xd1ac8b1ef1b69ff51d1d401a476e7e612414f091'," +
            "      'extraBalanceAccount':'0x8163e7fb499e90f8544ea62bbf80d21cd26d9efd'" +
            "   }," +
            "   {  " +
            "      'address':'0x51e0ddd9998364a2eb38588679f0d2c42653e4a6'," +
            "      'extraBalanceAccount':'0x627a0a960c079c21c34f7612d5d230e01b4ad4c7'" +
            "   }," +
            "   {  " +
            "      'address':'0xf0b1aa0eb660754448a7937c022e30aa692fe0c5'," +
            "      'extraBalanceAccount':'0x24c4d950dfd4dd1902bbed3508144a54542bba94'" +
            "   }," +
            "   {  " +
            "      'address':'0x9f27daea7aca0aa0446220b98d028715e3bc803d'," +
            "      'extraBalanceAccount':'0xa5dc5acd6a7968a4554d89d65e59b7fd3bff0f90'" +
            "   }," +
            "   {  " +
            "      'address':'0xd9aef3a1e38a39c16b31d1ace71bca8ef58d315b'," +
            "      'extraBalanceAccount':'0x63ed5a272de2f6d968408b4acb9024f4cc208ebf'" +
            "   }," +
            "   {  " +
            "      'address':'0x6f6704e5a10332af6672e50b3d9754dc460dfa4d'," +
            "      'extraBalanceAccount':'0x77ca7b50b6cd7e2f3fa008e24ab793fd56cb15f6'" +
            "   }," +
            "   {  " +
            "      'address':'0x492ea3bb0f3315521c31f273e565b868fc090f17'," +
            "      'extraBalanceAccount':'0x0ff30d6de14a8224aa97b78aea5388d1c51c1f00'" +
            "   }," +
            "   {  " +
            "      'address':'0x9ea779f907f0b315b364b0cfc39a0fde5b02a416'," +
            "      'extraBalanceAccount':'0xceaeb481747ca6c540a000c1f3641f8cef161fa7'" +
            "   }," +
            "   {  " +
            "      'address':'0xcc34673c6c40e791051898567a1222daf90be287'," +
            "      'extraBalanceAccount':'0x579a80d909f346fbfb1189493f521d7f48d52238'" +
            "   }," +
            "   {  " +
            "      'address':'0xe308bd1ac5fda103967359b2712dd89deffb7973'," +
            "      'extraBalanceAccount':'0x4cb31628079fb14e4bc3cd5e30c2f7489b00960c'" +
            "   }," +
            "   {  " +
            "      'address':'0xac1ecab32727358dba8962a0f3b261731aad9723'," +
            "      'extraBalanceAccount':'0x4fd6ace747f06ece9c49699c7cabc62d02211f75'" +
            "   }," +
            "   {  " +
            "      'address':'0x440c59b325d2997a134c2c7c60a8c61611212bad'," +
            "      'extraBalanceAccount':'0x4486a3d68fac6967006d7a517b889fd3f98c102b'" +
            "   }," +
            "   {  " +
            "      'address':'0x9c15b54878ba618f494b38f0ae7443db6af648ba'," +
            "      'extraBalanceAccount':'0x27b137a85656544b1ccb5a0f2e561a5703c6a68f'" +
            "   }," +
            "   {  " +
            "      'address':'0x21c7fdb9ed8d291d79ffd82eb2c4356ec0d81241'," +
            "      'extraBalanceAccount':'0x23b75c2f6791eef49c69684db4c6c1f93bf49a50'" +
            "   }," +
            "   {  " +
            "      'address':'0x1ca6abd14d30affe533b24d7a21bff4c2d5e1f3b'," +
            "      'extraBalanceAccount':'0xb9637156d330c0d605a791f1c31ba5890582fe1c'" +
            "   }," +
            "   {  " +
            "      'address':'0x6131c42fa982e56929107413a9d526fd99405560'," +
            "      'extraBalanceAccount':'0x1591fc0f688c81fbeb17f5426a162a7024d430c2'" +
            "   }," +
            "   {  " +
            "      'address':'0x542a9515200d14b68e934e9830d91645a980dd7a'," +
            "      'extraBalanceAccount':'0xc4bbd073882dd2add2424cf47d35213405b01324'" +
            "   }," +
            "   {  " +
            "      'address':'0x782495b7b3355efb2833d56ecb34dc22ad7dfcc4'," +
            "      'extraBalanceAccount':'0x58b95c9a9d5d26825e70a82b6adb139d3fd829eb'" +
            "   }," +
            "   {  " +
            "      'address':'0x3ba4d81db016dc2890c81f3acec2454bff5aada5'," +
            "      'extraBalanceAccount':'0xb52042c8ca3f8aa246fa79c3feaa3d959347c0ab'" +
            "   }," +
            "   {  " +
            "      'address':'0xe4ae1efdfc53b73893af49113d8694a057b9c0d1'," +
            "      'extraBalanceAccount':'0x3c02a7bc0391e86d91b7d144e61c2c01a25a79c5'" +
            "   }," +
            "   {  " +
            "      'address':'0x0737a6b837f97f46ebade41b9bc3e1c509c85c53'," +
            "      'extraBalanceAccount':'0x97f43a37f595ab5dd318fb46e7a155eae057317a'" +
            "   }," +
            "   {  " +
            "      'address':'0x52c5317c848ba20c7504cb2c8052abd1fde29d03'," +
            "      'extraBalanceAccount':'0x4863226780fe7c0356454236d3b1c8792785748d'" +
            "   }," +
            "   {  " +
            "      'address':'0x5d2b2e6fcbe3b11d26b525e085ff818dae332479'," +
            "      'extraBalanceAccount':'0x5f9f3392e9f62f63b8eac0beb55541fc8627f42c'" +
            "   }," +
            "   {  " +
            "      'address':'0x057b56736d32b86616a10f619859c6cd6f59092a'," +
            "      'extraBalanceAccount':'0x9aa008f65de0b923a2a4f02012ad034a5e2e2192'" +
            "   }," +
            "   {  " +
            "      'address':'0x304a554a310c7e546dfe434669c62820b7d83490'," +
            "      'extraBalanceAccount':'0x914d1b8b43e92723e64fd0a06f5bdb8dd9b10c79'" +
            "   }," +
            "   {  " +
            "      'address':'0x4deb0033bb26bc534b197e61d19e0733e5679784'," +
            "      'extraBalanceAccount':'0x07f5c1e1bc2c93e0402f23341973a0e043f7bf8a'" +
            "   }," +
            "   {  " +
            "      'address':'0x35a051a0010aba705c9008d7a7eff6fb88f6ea7b'," +
            "      'extraBalanceAccount':'0x4fa802324e929786dbda3b8820dc7834e9134a2a'" +
            "   }," +
            "   {  " +
            "      'address':'0x9da397b9e80755301a3b32173283a91c0ef6c87e'," +
            "      'extraBalanceAccount':'0x8d9edb3054ce5c5774a420ac37ebae0ac02343c6'" +
            "   }," +
            "   {  " +
            "      'address':'0x0101f3be8ebb4bbd39a2e3b9a3639d4259832fd9'," +
            "      'extraBalanceAccount':'0x5dc28b15dffed94048d73806ce4b7a4612a1d48f'" +
            "   }," +
            "   {  " +
            "      'address':'0xbcf899e6c7d9d5a215ab1e3444c86806fa854c76'," +
            "      'extraBalanceAccount':'0x12e626b0eebfe86a56d633b9864e389b45dcb260'" +
            "   }," +
            "   {  " +
            "      'address':'0xa2f1ccba9395d7fcb155bba8bc92db9bafaeade7'," +
            "      'extraBalanceAccount':'0xec8e57756626fdc07c63ad2eafbd28d08e7b0ca5'" +
            "   }," +
            "   {  " +
            "      'address':'0xd164b088bd9108b60d0ca3751da4bceb207b0782'," +
            "      'extraBalanceAccount':'0x6231b6d0d5e77fe001c2a460bd9584fee60d409b'" +
            "   }," +
            "   {  " +
            "      'address':'0x1cba23d343a983e9b5cfd19496b9a9701ada385f'," +
            "      'extraBalanceAccount':'0xa82f360a8d3455c5c41366975bde739c37bfeb8a'" +
            "   }," +
            "   {  " +
            "      'address':'0x9fcd2deaff372a39cc679d5c5e4de7bafb0b1339'," +
            "      'extraBalanceAccount':'0x005f5cee7a43331d5a3d3eec71305925a62f34b6'" +
            "   }," +
            "   {  " +
            "      'address':'0x0e0da70933f4c7849fc0d203f5d1d43b9ae4532d'," +
            "      'extraBalanceAccount':'0xd131637d5275fd1a68a3200f4ad25c71a2a9522e'" +
            "   }," +
            "   {  " +
            "      'address':'0xbc07118b9ac290e4622f5e77a0853539789effbe'," +
            "      'extraBalanceAccount':'0x47e7aa56d6bdf3f36be34619660de61275420af8'" +
            "   }," +
            "   {  " +
            "      'address':'0xacd87e28b0c9d1254e868b81cba4cc20d9a32225'," +
            "      'extraBalanceAccount':'0xadf80daec7ba8dcf15392f1ac611fff65d94f880'" +
            "   }," +
            "   {  " +
            "      'address':'0x5524c55fb03cf21f549444ccbecb664d0acad706'," +
            "      'extraBalanceAccount':'0x40b803a9abce16f50f36a77ba41180eb90023925'" +
            "   }," +
            "   {  " +
            "      'address':'0xfe24cdd8648121a43a7c86d289be4dd2951ed49f'," +
            "      'extraBalanceAccount':'0x17802f43a0137c506ba92291391a8a8f207f487d'" +
            "   }," +
            "   {  " +
            "      'address':'0x253488078a4edf4d6f42f113d1e62836a942cf1a'," +
            "      'extraBalanceAccount':'0x86af3e9626fce1957c82e88cbf04ddf3a2ed7915'" +
            "   }," +
            "   {  " +
            "      'address':'0xb136707642a4ea12fb4bae820f03d2562ebff487'," +
            "      'extraBalanceAccount':'0xdbe9b615a3ae8709af8b93336ce9b477e4ac0940'" +
            "   }," +
            "   {  " +
            "      'address':'0xf14c14075d6c4ed84b86798af0956deef67365b5'," +
            "      'extraBalanceAccount':'0xca544e5c4687d109611d0f8f928b53a25af72448'" +
            "   }," +
            "   {  " +
            "      'address':'0xaeeb8ff27288bdabc0fa5ebb731b6f409507516c'," +
            "      'extraBalanceAccount':'0xcbb9d3703e651b0d496cdefb8b92c25aeb2171f7'" +
            "   }," +
            "   {  " +
            "      'address':'0x6d87578288b6cb5549d5076a207456a1f6a63dc0'," +
            "      'extraBalanceAccount':'0xb2c6f0dfbb716ac562e2d85d6cb2f8d5ee87603e'" +
            "   }," +
            "   {  " +
            "      'address':'0xaccc230e8a6e5be9160b8cdf2864dd2a001c28b6'," +
            "      'extraBalanceAccount':'0x2b3455ec7fedf16e646268bf88846bd7a2319bb2'" +
            "   }," +
            "   {  " +
            "      'address':'0x4613f3bca5c44ea06337a9e439fbc6d42e501d0a'," +
            "      'extraBalanceAccount':'0xd343b217de44030afaa275f54d31a9317c7f441e'" +
            "   }," +
            "   {  " +
            "      'address':'0x84ef4b2357079cd7a7c69fd7a37cd0609a679106'," +
            "      'extraBalanceAccount':'0xda2fef9e4a3230988ff17df2165440f37e8b1708'" +
            "   }," +
            "   {  " +
            "      'address':'0xf4c64518ea10f995918a454158c6b61407ea345c'," +
            "      'extraBalanceAccount':'0x7602b46df5390e432ef1c307d4f2c9ff6d65cc97'" +
            "   }," +
            "   {  " +
            "      'address':'0xbb9bc244d798123fde783fcc1c72d3bb8c189413'," +
            "      'extraBalanceAccount':'0x807640a13483f8ac783c557fcdf27be11ea4ac7a'" +
            "   }" +
            "]";

    @Override
    public String toString() {
        return super.toString() + "(forkBlock:" + forkBlockNumber + ")";
    }
}
