"""包基线冒烟测试：可导入、版本号存在。"""

from pathlib import Path

import polygateway


def test_package_importable_with_version() -> None:
    import tomllib

    declared = tomllib.loads(Path("pyproject.toml").read_text())["project"]["version"]
    assert polygateway.__version__ == declared  # 单一版本源: 与 pyproject 同步


def test_ocr_public_surface_exported():
    """M3 OCR 公共 API 面(设计 §3;transport 结果与 Protocol 不出顶层)。"""
    import polygateway

    for name in (
        "OcrClient",
        "OcrSettings",
        "OcrTextResult",
        "OcrLayoutResult",
        "OcrLayoutElement",
    ):
        assert hasattr(polygateway, name), name
        assert name in polygateway.__all__, name


def test_telemetry_schema_sql_exported():
    """issue #13: manual 档下游需要主动索取"库要求的最小 schema"的顶层入口。

    同时钉住公共面**只增这一个名字**: `missing_columns_warning` 是 recorder 内部
    共用的文案构造函数,导出它等于多一份永久承诺(库承诺公共面只增不删)。
    """
    assert "telemetry_schema_sql" in polygateway.__all__
    assert callable(polygateway.telemetry_schema_sql)
    assert "missing_columns_warning" not in polygateway.__all__
    assert not hasattr(polygateway, "missing_columns_warning")


def test_telemetry_status_exported():
    """issue #15: `client.telemetry_status` 的返回类型必须能从顶层 import。

    下游对账/告警要给这个快照做类型标注,若只在 `polygateway.types` 里,标注就得
    深入子模块,而本库的约定是「顶层导出即公共 API 面」。`TelemetryStatusProvider`
    则**不**导出: 它是端口,库外无实现者,导出即多一份永久承诺。
    """
    assert "TelemetryStatus" in polygateway.__all__
    assert polygateway.TelemetryStatus is not None
    assert "TelemetryStatusProvider" not in polygateway.__all__