"""create birds table

Revision ID: 1234567890ab
Revises: 
Create Date: 2023-05-23 10:00:00.000000

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


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


def upgrade():
    op.create_table(
        'birds',
        sa.Column('id', UUID(as_uuid=True), primary_key=True, server_default=sa.text("uuid_generate_v4()")),
        sa.Column('name', sa.String, nullable=False, unique=True),
        sa.Column('species', sa.String, nullable=False),
        sa.Column('description', sa.String),
        sa.Column('age', sa.Integer),
        sa.Column('created_at', UUID, sa.ForeignKey('created_at_metadata.id')),
        sa.Column('updated_at', UUID, sa.ForeignKey('updated_at_metadata.id')),
        sa.Index('ix_birds_name', 'name')
    )


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