"""代理白名单平台抽象：新增 whitelist_platform / whitelist_credentials 字段

Revision ID: 20260624_0003
Revises: 20260624_0002
Create Date: 2026-06-24
"""

from typing import Sequence, Union

from alembic import op
import sqlalchemy as sa


revision: str = "20260624_0003"
down_revision: Union[str, None] = "20260624_0002"
branch_labels: Union[str, Sequence[str], None] = None
depends_on: Union[str, Sequence[str], None] = None


def upgrade() -> None:
    with op.batch_alter_table("proxy_config") as batch:
        batch.add_column(
            sa.Column("whitelist_platform", sa.String(32), server_default="xiequ")
        )
        batch.add_column(
            sa.Column("whitelist_credentials", sa.JSON(), nullable=True)
        )


def downgrade() -> None:
    with op.batch_alter_table("proxy_config") as batch:
        batch.drop_column("whitelist_credentials")
        batch.drop_column("whitelist_platform")