#ifndef BITCOIN_NAMECLAIM_H
#define BITCOIN_NAMECLAIM_H

#include "amount.h"
#include "script/script.h"
#include "primitives/transaction.h"
#include "uint256.h"

#include <vector>

// This is the minimum claim fee per character in the name of an OP_CLAIM_NAME command that must
// be attached to transactions for it to be accepted into the memory pool.
// Rationale: current implementation of the claim trie uses more memory for longer name claims
// due to the fact that each chracater is assigned a trie node regardless of whether it contains
// any claims or not. In the future, we can switch to a radix tree implementation where
// empty nodes do not take up any memory and the minimum fee can be priced on a per claim
// basis.
#define MIN_FEE_PER_NAMECLAIM_CHAR 200000

// This is the max claim script size in bytes, not including the script pubkey part of the script.
// Scripts exceeding this size are rejected in CheckTransaction in main.cpp
#define MAX_CLAIM_SCRIPT_SIZE 8192

// This is the max claim name size in bytes, for all claim trie transactions.
// Scripts exceeding this size are rejected in CheckTransaction in main.cpp
#define MAX_CLAIM_NAME_SIZE 255

CScript ClaimNameScript(std::string name, std::string value);
CScript SupportClaimScript(std::string name, uint160 claimId);
CScript UpdateClaimScript(std::string name, uint160 claimId, std::string value);
bool DecodeClaimScript(const CScript& scriptIn, int& op, std::vector<std::vector<unsigned char> >& vvchParams);
bool DecodeClaimScript(const CScript& scriptIn, int& op, std::vector<std::vector<unsigned char> >& vvchParams, CScript::const_iterator& pc);
CScript StripClaimScriptPrefix(const CScript& scriptIn);
CScript StripClaimScriptPrefix(const CScript& scriptIn, int& op);
uint160 ClaimIdHash(const uint256& txhash, uint32_t nOut);
std::vector<unsigned char> uint32_t_to_vch(uint32_t n);
uint32_t vch_to_uint32_t(std::vector<unsigned char>& vchN);
// get size of the claim script, minus the script pubkey part
size_t ClaimScriptSize(const CScript& scriptIn);
// get size of the name in a claim script, returns 0 if scriptin is not a claimetrie transaction
size_t ClaimNameSize(const CScript& scriptIn);
// calculate the minimum fee (mempool rule) required for transaction
CAmount CalcMinClaimTrieFee(const CTransaction& tx, const CAmount &minFeePerNameClaimChar);

#endif // BITCOIN_NAMECLAIM_H