"""evotor webhook token flow: add evotor_user_id, make user_id nullable

Revision ID: f6a7b8c9d0e1
Revises: e5f6a7b8c9d0
Branch Labels: None
Depends On: None

"""
from alembic import op
import sqlalchemy as sa

revision = 'f6a7b8c9d0e1'
down_revision = 'e5f6a7b8c9d0'
branch_labels = None
depends_on = None


def upgrade() -> None:
    op.add_column('evotor_connections',
        sa.Column('evotor_user_id', sa.String(255), nullable=True))
    op.create_unique_constraint('uq_evotor_connections_evotor_user_id',
        'evotor_connections', ['evotor_user_id'])
    op.create_index('ix_evotor_connections_evotor_user_id',
        'evotor_connections', ['evotor_user_id'])
    op.alter_column('evotor_connections', 'user_id', nullable=True)


def downgrade() -> None:
    op.alter_column('evotor_connections', 'user_id', nullable=False)
    op.drop_index('ix_evotor_connections_evotor_user_id', 'evotor_connections')
    op.drop_constraint('uq_evotor_connections_evotor_user_id', 'evotor_connections')
    op.drop_column('evotor_connections', 'evotor_user_id')