# Copyright (c) 2026 Emanuele Bellocchia
#
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# of this software and associated documentation files (the "Software"), to deal
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# furnished to do so, subject to the following conditions:
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"""Module for Solana address encoding/decoding."""

# 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.iaddr_decoder import IAddrDecoder
from bip_utils.addr.iaddr_encoder import IAddrEncoder
from bip_utils.base58 import Base58Decoder, Base58Encoder
from bip_utils.ecc import Ed25519PublicKey, IPublicKey


class SolAddrDecoder(IAddrDecoder):
    """
    Solana address decoder class.
    It allows the Solana address decoding.
    """

    @override
    @staticmethod
    def DecodeAddr(addr: str,
                   **kwargs: Any) -> bytes:
        """
        Decode a Solana address to bytes.

        Args:
            addr (str): Address string
            **kwargs  : Not used

        Returns:
            bytes: Public key bytes

        Raises:
            ValueError: If the address encoding is not valid
        """

        # Decode from base58
        addr_dec_bytes = Base58Decoder.Decode(addr)
        # Validate length
        AddrDecUtils.ValidateLength(addr_dec_bytes,
                                    Ed25519PublicKey.CompressedLength() - 1)
        # Validate public key
        AddrDecUtils.ValidatePubKey(addr_dec_bytes, Ed25519PublicKey)

        return addr_dec_bytes


class SolAddrEncoder(IAddrEncoder):
    """
    Solana address encoder class.
    It allows the Solana address encoding.
    """

    @override
    @staticmethod
    def EncodeKey(pub_key: Union[bytes, IPublicKey],
                  **kwargs: Any) -> str:
        """
        Encode a public key to Solana address.

        Args:
            pub_key (bytes or IPublicKey): Public key bytes or object
            **kwargs                     : Not used

        Returns:
            str: Address string

        Raises:
            ValueError: If the public key is not valid
            TypeError: If the public key is not ed25519
        """
        pub_key_obj = AddrKeyValidator.ValidateAndGetEd25519Key(pub_key)
        return Base58Encoder.Encode(pub_key_obj.RawCompressed().ToBytes()[1:])


# Deprecated: only for compatibility, Encoder class shall be used instead
SolAddr = SolAddrEncoder