HoleskySpecProvider.cs

// SPDX-FileCopyrightText: 2022 Demerzel Solutions Limited
// SPDX-License-Identifier: LGPL-3.0-only

using Nethermind.Core;
using Nethermind.Core.Specs;
using Nethermind.Int256;
using Nethermind.Specs.Forks;

namespace Nethermind.Specs;

public class HoleskySpecProvider : ISpecProvider
{
    public const ulong GenesisTimestamp = 0x65046360;
    public const ulong ShanghaiTimestamp = 0x6505e360;
    // public const ulong CancunTimestamp = 0x77359400;

    private HoleskySpecProvider() { }

    public IReleaseSpec GetSpec(ForkActivation forkActivation)
    {
        return forkActivation.Timestamp switch
        {
            null or < ShanghaiTimestamp => GenesisSpec,
            // < CancunTimestamp => Shanghai.Instance,
            _ => Shanghai.Instance
        };
    }

    public void UpdateMergeTransitionInfo(long? blockNumber, UInt256? terminalTotalDifficulty = null)
    {
        if (blockNumber is not null)
            MergeBlockNumber = (ForkActivation)blockNumber;
        if (terminalTotalDifficulty is not null)
            TerminalTotalDifficulty = terminalTotalDifficulty;
    }

    public ulong NetworkId => BlockchainIds.Holesky;
    public ulong ChainId => NetworkId;
    public long? DaoBlockNumber => null;
    public ForkActivation? MergeBlockNumber { get; private set; } = (0, GenesisTimestamp);
    public ulong TimestampFork => ShanghaiTimestamp;
    public UInt256? TerminalTotalDifficulty { get; private set; } = 0;
    public IReleaseSpec GenesisSpec { get; } = London.Instance;
    public ForkActivation[] TransitionActivations { get; } =
    {
        (1, ShanghaiTimestamp),
        // (2, CancunTimestamp)
    };

    public static readonly HoleskySpecProvider Instance = new();
}