# -*- coding: utf-8 -*-

##########################################################################
# OpenLP - Open Source Lyrics Projection                                 #
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# Copyright (c) 2008-2024 OpenLP Developers                              #
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# 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.                                    #
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# 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.                           #
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# You should have received a copy of the GNU General Public License      #
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"""
The :mod:`db` module provides the database and schema that is the backend for the Alerts plugin.
"""

from sqlalchemy import Column
from sqlalchemy.orm import Session, declarative_base
from sqlalchemy.types import Integer, UnicodeText

from openlp.core.db.helpers import init_db


Base = declarative_base()


class AlertItem(Base):
    """
    AlertItem model
    """
    __tablename__ = 'alerts'
    id = Column(Integer, primary_key=True)
    text = Column(UnicodeText, nullable=False)


def init_schema(url: str) -> Session:
    """
    Setup the alerts database connection and initialise the database schema

    :param url:
        The database to setup
    """
    session, metadata = init_db(url, base=Base)
    metadata.create_all(bind=metadata.bind, checkfirst=True)
    return session
