"""5 个新鲜度索引:create_all 建出 + 模型迁移双声明一致(防 autogenerate 反 DROP)。

迁移侧(c3d4e5f6a7b8)由临时库 alembic upgrade head 验证;本文件锁定
模型侧——Base.metadata 与 models.py __table_args__ 声明一旦被误删,
create_all 建出的表就缺索引,此测试即红。
"""
from __future__ import annotations

import sqlalchemy as sa
from sqlalchemy.ext.asyncio import create_async_engine
from sqlalchemy.pool import StaticPool

from app.db.base import Base

EXPECTED = {
    "customer": "ix_customer_updated_at",
    "chat_group": "ix_chat_group_updated_at",
    "phone_call": "ix_phone_call_updated_at",
    "media": "ix_media_updated_at",
    "moments_post": "ix_moments_post_updated_at",
}


async def test_freshness_indexes_exist():
    engine = create_async_engine(
        "sqlite+aiosqlite:///:memory:",
        poolclass=StaticPool,
        connect_args={"check_same_thread": False},
    )
    try:
        async with engine.begin() as conn:
            await conn.run_sync(Base.metadata.create_all)
            names = await conn.run_sync(
                lambda sync_conn: {
                    t: {ix["name"] for ix in sa.inspect(sync_conn).get_indexes(t)}
                    for t in EXPECTED
                }
            )
        for table, index in EXPECTED.items():
            assert index in names[table], f"{table}.{index} missing"
    finally:
        await engine.dispose()