#
# Copyright (c) 2021-2026 ahriman team.
#
# This file is part of ahriman
# (see https://github.com/arcan1s/ahriman).
#
# 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, either version 3 of the License, or
# (at your option) any later version.
#
# 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, see <http://www.gnu.org/licenses/>.
#
from collections.abc import Callable
from dataclasses import dataclass
from sqlite3 import Connection

from ahriman.core.configuration import Configuration


@dataclass(frozen=True, kw_only=True)
class Migration:
    """
    migration implementation

    Attributes:
        index(int): migration position
        name(str): migration name
        steps(list[str]): migration steps
        migrate_data(Callable[[Connection, Configuration], None]): data migration callback
    """

    index: int
    name: str
    steps: list[str]
    migrate_data: Callable[[Connection, Configuration], None]
