/// BLOCK_VERSION represents the current block version. This denotes the use of
/// the new sequencing commit described in KIP-21.
pub const BLOCK_VERSION: u16 = 2;

/// TX_VERSION is the current latest supported transaction version.
pub const TX_VERSION: u16 = 0;

/// The transaction version activated by the Toccata hardfork.
///
/// Main changes enabled relative to [`TX_VERSION`] (0):
/// - output covenant bindings,
/// - input compute-budget mass,
/// - non-native/non-coinbase subnetworks (user lanes),
/// - gas commitments.
pub const TX_VERSION_TOCCATA: u16 = 1;

pub const LOCK_TIME_THRESHOLD: u64 = 500_000_000_000;

/// MAX_SCRIPT_PUBLIC_KEY_VERSION is the current latest supported public key script version.
pub const MAX_SCRIPT_PUBLIC_KEY_VERSION: u16 = 0;

/// SompiPerKaspa is the number of sompi in one kaspa (1 KAS).
pub const SOMPI_PER_KASPA: u64 = 100_000_000;

/// The parameter for scaling inverse KAS value to mass units (KIP-0009)
pub const STORAGE_MASS_PARAMETER: u64 = SOMPI_PER_KASPA * 10_000;

/// The parameter defining how much mass per byte to charge for when calculating
/// transient storage mass. Since normally the block mass limit is 500_000, this limits
/// block body byte size to 125_000 (KIP-0013).
pub const TRANSIENT_BYTE_TO_MASS_FACTOR: u64 = 4;

/// MaxSompi is the maximum transaction amount allowed in sompi.
pub const MAX_SOMPI: u64 = 29_000_000_000 * SOMPI_PER_KASPA;

// MAX_TX_IN_SEQUENCE_NUM is the maximum sequence number the sequence field
// of a transaction input can be.
pub const MAX_TX_IN_SEQUENCE_NUM: u64 = u64::MAX;

// SEQUENCE_LOCK_TIME_MASK is a mask that extracts the relative lock time
// when masked against the transaction input sequence number.
pub const SEQUENCE_LOCK_TIME_MASK: u64 = 0x00000000ffffffff;

// SEQUENCE_LOCK_TIME_DISABLED is a flag that if set on a transaction
// input's sequence number, the sequence number will not be interpreted
// as a relative lock time.
pub const SEQUENCE_LOCK_TIME_DISABLED: u64 = 1 << 63;

/// UNACCEPTED_DAA_SCORE is used to for UtxoEntries that were created by
/// transactions in the mempool, or otherwise not-yet-accepted transactions.
pub const UNACCEPTED_DAA_SCORE: u64 = u64::MAX;