/*
 * Copyright 2013 Google Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.google.bitcoin.params;

import com.google.bitcoin.core.CoinDefinition;
import com.google.bitcoin.core.NetworkParameters;
import com.google.bitcoin.core.Utils;

import static com.google.common.base.Preconditions.checkState;

/**
 * Parameters for the old version 2 testnet. This is not useful to you - it exists only because some unit tests are
 * based on it.
 */
public class TestNet2Params extends NetworkParameters {
    public TestNet2Params() {
        super();
        id = ID_TESTNET;
        packetMagic = 0xfabfb5daL;

        port = CoinDefinition.TestPort;
        addressHeader = CoinDefinition.testnetAddressHeader;
        p2shHeader = CoinDefinition.testnetp2shHeader;
        acceptableAddressCodes = new int[] { addressHeader, p2shHeader };
        interval = INTERVAL;
        targetTimespan = TARGET_TIMESPAN;
        proofOfWorkLimit = CoinDefinition.proofOfWorkLimit;
        dumpedPrivateKeyHeader = 128 + CoinDefinition.testnetAddressHeader;

        genesisBlock.setTime(1296688602L);
        genesisBlock.setDifficultyTarget(0x1d07fff8L);
        genesisBlock.setNonce(384568319);
        spendableCoinbaseDepth = CoinDefinition.spendableCoinbaseDepth;
        subsidyDecreaseBlockCount = CoinDefinition.subsidyDecreaseBlockCount;
        String genesisHash = genesisBlock.getHashAsString();
        //checkState(genesisHash.equals("00000007199508e34a9ff81e6ec0c477a4cccff2a4767a8eee39c11db367b008"));
        dnsSeeds = null;
    }

    private static TestNet2Params instance;
    public static synchronized TestNet2Params get() {
        if (instance == null) {
            instance = new TestNet2Params();
        }
        return instance;
    }

    public String getPaymentProtocolId() {
        return null;
    }
}