"""Add settings table

Revision ID: 002
Revises: 001
Create Date: 2025-01-27 10:30:00.000000

"""
from typing import Sequence, Union

from alembic import op
import sqlalchemy as sa

# revision identifiers, used by Alembic.
revision: str = '002'
down_revision: Union[str, None] = '001'
branch_labels: Union[str, Sequence[str], None] = None
depends_on: Union[str, Sequence[str], None] = None


def upgrade() -> None:
    # Create settings table (SQLite compatible)
    op.create_table(
        'settings',
        sa.Column('id', sa.Integer(), primary_key=True, autoincrement=True),
        sa.Column('key', sa.String(length=100), nullable=False),
        sa.Column('value_str', sa.String(length=500), nullable=True),
        sa.Column('value_bool', sa.Boolean(), nullable=True),
        sa.Column('created_at', sa.DateTime(), server_default=sa.text("(datetime('now'))"), nullable=False),
        sa.Column('updated_at', sa.DateTime(), server_default=sa.text("(datetime('now'))"), nullable=False),
    )

    # Create unique index on key
    op.create_index('ix_settings_key', 'settings', ['key'], unique=True)


def downgrade() -> None:
    # Drop index
    op.drop_index('ix_settings_key', table_name='settings')

    # Drop table
    op.drop_table('settings')