"""首页采集状态来自真实批次，关闭读取不抹掉历史成功记录。"""

from datetime import datetime

import pytest
from sqlalchemy import Column, DateTime, Integer, MetaData, String, Table, create_engine
from sqlalchemy.orm import Session

from app.core.config import Settings
from app.services import dashboard_service


@pytest.fixture
def sync_database(monkeypatch):
    engine = create_engine("sqlite://")
    metadata = MetaData()
    # 只建 V14 已有列，证明读取状态不要求业务库先升级 V20。
    table = Table(
        "tplus_sync_batches", metadata,
        Column("id", Integer, primary_key=True),
        Column("sync_mode", String(16)),
        Column("status", String(16)),
        Column("finished_at", DateTime),
    )
    metadata.create_all(engine)
    settings = Settings(_env_file=None, app_secret_key="x" * 32)
    monkeypatch.setattr(dashboard_service, "get_settings", lambda: settings, raising=False)
    with Session(engine) as session:
        yield session, table, settings
    engine.dispose()


def test_关闭采集仍显示历史成功且不将旧失败冒充当前失败(sync_database):
    session, table, _ = sync_database
    finished = datetime(2026, 10, 30, 16, 52, 3)
    session.execute(table.insert(), [
        {"id": 1, "sync_mode": "FULL", "status": "FAILED", "finished_at": finished},
        {"id": 2, "sync_mode": "FULL", "status": "SUCCEEDED", "finished_at": finished},
        {"id": 3, "sync_mode": "AUDIT", "status": "FAILED", "finished_at": finished},
    ])
    result = dashboard_service._sync_status(session)
    assert result["available"] is True
    assert result["enabled"] is False and result["automation_enabled"] is False
    assert result["latest_status"] == "SUCCEEDED"
    assert result["last_success_at"] == finished
    assert result["historical_failure_total"] == 1


@pytest.mark.parametrize("status", ["FAILED", "PARTIAL", "QUEUED", "RUNNING"])
def test_首页如实返回最近采集状态(sync_database, status):
    session, table, settings = sync_database
    settings.t_plus_enabled = True
    session.execute(table.insert(), {"id": 1, "sync_mode": "FULL", "status": status})
    result = dashboard_service._sync_status(session)
    assert result["latest_status"] == status and result["enabled"] is True
    assert result["last_success_at"] is None


def test_无记录不显示已采集(sync_database):
    session, _, _ = sync_database
    result = dashboard_service._sync_status(session)
    assert result["available"] is True
    assert result["latest_status"] is None and result["last_success_at"] is None


def test_未建同步表时明确返回不可查询():
    engine = create_engine("sqlite://")
    try:
        with Session(engine) as session:
            result = dashboard_service._sync_status(session)
            assert result["available"] is False
            assert result["last_success_at"] is None
    finally:
        engine.dispose()