"""create table for Book entity

Revision ID: 2f1d03a4b8c9
Revises: 0001
Create Date: 2023-05-24 10:23:47.693926

"""
from alembic import op
import sqlalchemy as sa
from sqlalchemy.dialects.postgresql import UUID
import uuid


# revision identifiers, used by Alembic.
revision = '2f1d03a4b8c9'
down_revision = '0001'
branch_labels = None
depends_on = None


def upgrade():
    op.create_table(
        'books',
        sa.Column('id', UUID(as_uuid=True), primary_key=True, default=uuid.uuid4),
        sa.Column('title', sa.String(), nullable=False),
        sa.Column('author', sa.String(), nullable=False),
        sa.Column('description', sa.String(), nullable=True),
        sa.Column('publisher', sa.String(), nullable=True),
        sa.Column('publication_year', sa.Integer(), nullable=True),
        sa.Column('isbn', sa.String(), unique=True, index=True, nullable=False),
        sa.Column('pages', sa.Integer(), nullable=True),
        sa.Column('language', sa.String(), nullable=True),
        sa.Column('created_at', sa.DateTime(), server_default=sa.func.now()),
        sa.Column('updated_at', sa.DateTime(), server_default=sa.func.now(), onupdate=sa.func.now())
    )


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