"""init

Revision ID: d266fdc61e99
Revises: 
Create Date: 2025-05-27 18:04:22.279035

"""
from typing import Sequence, Union

from alembic import op
import sqlalchemy as sa
import sqlmodel


# revision identifiers, used by Alembic.
revision: str = 'd266fdc61e99'
down_revision: Union[str, None] = None
branch_labels: Union[str, Sequence[str], None] = None
depends_on: Union[str, Sequence[str], None] = None


def upgrade() -> None:
    # ### commands auto generated by Alembic - please adjust! ###
    op.create_table('author',
    sa.Column('id', sa.Integer(), nullable=False),
    sa.Column('name', sqlmodel.sql.sqltypes.AutoString(), nullable=False),
    sa.PrimaryKeyConstraint('id')
    )
    op.create_index(op.f('ix_author_id'), 'author', ['id'], unique=False)
    op.create_table('book',
    sa.Column('id', sa.Integer(), nullable=False),
    sa.Column('title', sqlmodel.sql.sqltypes.AutoString(), nullable=False),
    sa.Column('description', sqlmodel.sql.sqltypes.AutoString(), nullable=False),
    sa.PrimaryKeyConstraint('id')
    )
    op.create_index(op.f('ix_book_id'), 'book', ['id'], unique=False)
    op.create_table('authorbooklink',
    sa.Column('author_id', sa.Integer(), nullable=False),
    sa.Column('book_id', sa.Integer(), nullable=False),
    sa.ForeignKeyConstraint(['author_id'], ['author.id'], ),
    sa.ForeignKeyConstraint(['book_id'], ['book.id'], ),
    sa.PrimaryKeyConstraint('author_id', 'book_id')
    )
    # ### end Alembic commands ###


def downgrade() -> None:
    # ### commands auto generated by Alembic - please adjust! ###
    op.drop_table('authorbooklink')
    op.drop_index(op.f('ix_book_id'), table_name='book')
    op.drop_table('book')
    op.drop_index(op.f('ix_author_id'), table_name='author')
    op.drop_table('author')
    # ### end Alembic commands ###