"""strategy 表（M8.3 策略持久化）

Revision ID: e1f2a3b4c5d6
Revises: d8e0b2f3c4d5
Create Date: 2026-09-09

"""

from __future__ import annotations

from collections.abc import Sequence

import sqlalchemy as sa
from alembic import op

revision: str = "e1f2a3b4c5d6"
down_revision: str | None = "d8e0b2f3c4d5"
branch_labels: str | Sequence[str] | None = None
depends_on: str | Sequence[str] | None = None


def upgrade() -> None:
    op.create_table(
        "strategy",
        sa.Column("id", sa.String(length=32), nullable=False),
        sa.Column("name", sa.String(length=64), nullable=False),
        sa.Column("description", sa.String(length=300), nullable=False),
        sa.Column("spec_type", sa.String(length=16), nullable=False),
        sa.Column("config_json", sa.Text(), nullable=False),
        sa.Column("version", sa.String(length=16), nullable=False),
        sa.Column("created_at", sa.DateTime(), nullable=False),
        sa.PrimaryKeyConstraint("id"),
        sa.UniqueConstraint("name", name="uq_strategy_name"),
    )


def downgrade() -> None:
    op.drop_table("strategy")