"""create books table

Revision ID: 1234567890ab
Revises: 
Create Date: 2023-05-24 10:00:00.000000

"""
from alembic import op
import sqlalchemy as sa
import uuid
from sqlalchemy.sql import func

# revision identifiers, used by Alembic.
revision = '1234567890ab'
down_revision = None
branch_labels = None
depends_on = None


def upgrade():
    op.create_table(
        'books',
        sa.Column('id', sa.String, primary_key=True, default=lambda: str(uuid.uuid4())),
        sa.Column('title', sa.String, nullable=False),
        sa.Column('author', sa.String, nullable=False),
        sa.Column('description', sa.String),
        sa.Column('page_count', sa.Integer),
        sa.Column('published_date', sa.DateTime),
        sa.Column('genre_id', sa.String, sa.ForeignKey('genres.id')),
        sa.Column('created_at', sa.DateTime, default=func.now()),
        sa.Column('updated_at', sa.DateTime, default=func.now(), onupdate=func.now())
    )


def downgrade():
    op.drop_table('books')