"""add_app_config_retriever_resource

Revision ID: 77e83833755c
Revises: 6dcb43972bdc
Create Date: 2023-09-06 17:26:40.311927

"""
import sqlalchemy as sa
from alembic import op

import models.types


def _is_pg(conn):
    return conn.dialect.name == "postgresql"

# revision identifiers, used by Alembic.
revision = '77e83833755c'
down_revision = '6dcb43972bdc'
branch_labels = None
depends_on = None


def upgrade():
    # ### commands auto generated by Alembic - please adjust! ###
    conn = op.get_bind()
    
    if _is_pg(conn):
        with op.batch_alter_table('app_model_configs', schema=None) as batch_op:
            batch_op.add_column(sa.Column('retriever_resource', sa.Text(), nullable=True))
    else:
        with op.batch_alter_table('app_model_configs', schema=None) as batch_op:
            batch_op.add_column(sa.Column('retriever_resource', models.types.LongText(), nullable=True))

    # ### end Alembic commands ###


def downgrade():
    # ### commands auto generated by Alembic - please adjust! ###
    with op.batch_alter_table('app_model_configs', schema=None) as batch_op:
        batch_op.drop_column('retriever_resource')

    # ### end Alembic commands ###