# Copyright (c) 2026 Emanuele Bellocchia
#
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"""
Module for Injective address encoding/decoding.
Reference: https://docs.injective.network/learn/basic-concepts/accounts
"""
# Imports
from typing import Any, Union
from typing_extensions import override
from bip_utils.addr.addr_dec_utils import AddrDecUtils
from bip_utils.addr.addr_key_validator import AddrKeyValidator
from bip_utils.addr.eth_addr import EthAddrConst, EthAddrEncoder
from bip_utils.addr.iaddr_decoder import IAddrDecoder
from bip_utils.addr.iaddr_encoder import IAddrEncoder
from bip_utils.bech32 import Bech32ChecksumError, Bech32Decoder, Bech32Encoder
from bip_utils.coin_conf.coins_conf import CoinsConf
from bip_utils.ecc import IPublicKey
from bip_utils.utils.misc import BytesUtils
class InjAddrDecoder(IAddrDecoder):
"""
Injective address decoder class.
It allows the Injective address decoding.
"""
@staticmethod
def DecodeAddr(addr: str,
**kwargs: Any) -> bytes:
"""
Decode an Injective address to bytes.
Args:
addr (str): Address string
Returns:
bytes: Public key hash bytes
Raises:
ValueError: If the address encoding is not valid
"""
try:
addr_dec_bytes = Bech32Decoder.Decode(
CoinsConf.Injective.ParamByKey("addr_hrp"),
addr
)
except Bech32ChecksumError as ex:
raise ValueError("Invalid bech32 checksum") from ex
AddrDecUtils.ValidateLength(addr_dec_bytes,
EthAddrConst.ADDR_LEN // 2)
return addr_dec_bytes
class InjAddrEncoder(IAddrEncoder):
"""
Injective address encoder class.
It allows the Injective address encoding.
"""
@override
@staticmethod
def EncodeKey(pub_key: Union[bytes, IPublicKey],
**kwargs: Any) -> str:
"""
Encode a public key to Injective address.
Args:
pub_key (bytes or IPublicKey): Public key bytes or object
Returns:
str: Address string
Raises:
ValueError: If the public key is not valid
TypeError: If the public key is not secp256k1
"""
pub_key_obj = AddrKeyValidator.ValidateAndGetSecp256k1Key(pub_key)
eth_addr = EthAddrEncoder.EncodeKey(pub_key_obj)
return Bech32Encoder.Encode(CoinsConf.Injective.ParamByKey("addr_hrp"),
BytesUtils.FromHexString(eth_addr[2:]))
# Deprecated: only for compatibility, Encoder class shall be used instead
InjAddr = InjAddrEncoder