# CHIPSEC: Platform Security Assessment Framework
# Copyright (c) 2024, Intel Corporation
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; Version 2.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
#
# Contact information:
# chipsec@intel.com
#

"""
I/O BAR register interface.

This module provides functionality to access and manage I/O BAR registers
in the CHIPSEC framework.
"""

from typing import Any, List, Optional
from chipsec.library.registers.baseregister import BaseRegister


class IOBar(BaseRegister):
    """
    I/O BAR register interface for I/O Base Address Registers.

    Provides methods to access and query I/O BAR register definitions.
    """

    def __init__(self, cs: Any) -> None:
        """
        Initialize the I/O BAR register interface.

        Args:
            cs: Chipset interface object
        """
        super(IOBar, self).__init__(cs)

    def get_def(self, bar_name: str) -> Optional[Any]:
        """
        Get the definition of an I/O BAR by name.

        Args:
            bar_name: Name of the I/O BAR to retrieve

        Returns:
            I/O BAR definition if found, None otherwise

        Note:
            This implementation is currently a placeholder
        """
        # Implementation is currently a placeholder
        # Future implementation should retrieve the I/O BAR definition
        return None

    def get_match(self, pattern: str) -> List[str]:
        """
        Get I/O BARs matching a specific pattern.

        Args:
            pattern: Pattern to match against I/O BAR names

        Returns:
            List of matching I/O BAR identifiers

        Note:
            This implementation is currently a placeholder since get_def() is not implemented
        """
        # Implementation is currently a placeholder
        # Future implementation should match I/O BARs based on pattern
        return []
