#ifndef LLARP_POW_HPP
#define LLARP_POW_HPP

#include <crypto/crypto.hpp>
#include <router_id.hpp>
#include <util/buffer.hpp>

namespace llarp
{
  /// proof of work
  struct PoW
  {
    static constexpr size_t MaxSize = 128;
    uint64_t timestamp              = 0;
    uint32_t extendedLifetime       = 0;
    AlignedBuffer< 32 > nonce;
    uint64_t version = LLARP_PROTO_VERSION;

    ~PoW();

    bool
    IsValid(shorthash_func hashfunc, llarp_time_t now) const;

    bool
    DecodeKey(const llarp_buffer_t& k, llarp_buffer_t* val);

    bool
    BEncode(llarp_buffer_t* buf) const;

    bool
    operator==(const PoW& other) const
    {
      return timestamp == other.timestamp && version == other.version
          && extendedLifetime == other.extendedLifetime && nonce == other.nonce;
    }

    bool
    operator!=(const PoW& other) const
    {
      return !(*this == other);
    }

    std::ostream&
    print(std::ostream& stream, int level, int spaces) const;
  };

  inline std::ostream&
  operator<<(std::ostream& out, const PoW& p)
  {
    return p.print(out, -1, -1);
  }
}  // namespace llarp

#endif