"""add retrieval mode in document

Revision ID: e7254d2c6c18
Revises: d688d0da1123
Create Date: 2026-04-09 13:00:13.020713

"""

from typing import Sequence, Union

import sqlalchemy as sa
from alembic import op

# revision identifiers, used by Alembic.
revision: str = "e7254d2c6c18"
down_revision: Union[str, None] = "d688d0da1123"
branch_labels: Union[str, Sequence[str], None] = None
depends_on: Union[str, Sequence[str], None] = None


def upgrade() -> None:
    # ### commands auto generated by Alembic - please adjust! ###
    op.add_column(
        "knowledge_base_documents",
        sa.Column(
            "retrieval_mode",
            sa.String(length=20),
            server_default="chunked",
            nullable=False,
        ),
    )
    op.add_column(
        "knowledge_base_documents", sa.Column("full_text", sa.Text(), nullable=True)
    )
    # ### end Alembic commands ###


def downgrade() -> None:
    # ### commands auto generated by Alembic - please adjust! ###
    op.drop_column("knowledge_base_documents", "full_text")
    op.drop_column("knowledge_base_documents", "retrieval_mode")
    # ### end Alembic commands ###