"""feishu 插件 _constants.py 模块测试。

验证 C1 优化创建的共享常量模块：
- 模块导出完整（``__all__`` 与实际定义一致）。
- 常量值与 ``manifest.json`` 中对应字段对齐（F-03 单真相源）：
  - ``CHANNEL_TARGET`` 与 manifest ``channel_type`` 一致。
  - ``HTTP_TIMEOUT_SECONDS`` 与 manifest ``request_timeout_ms.default`` 对齐。
  - ``HTTP_MAX_CONNECTIONS`` 与 manifest ``resource_quota.max_connections`` 对齐。

_constants.py 作为 ConfigPort 未命中时的本地回退默认值，其值必须与
manifest 声明保持同步，避免双源不一致。
"""

from __future__ import annotations

import os

import pytest
from yuxi.channels.application.lifecycle.manifest_loader import load_manifest_from_dir
from yuxi.channels.plugins.feishu import _constants

pytestmark = pytest.mark.unit


@pytest.fixture
def feishu_manifest():
    plugin_dir = os.path.join(
        os.path.dirname(__file__),
        "..",
        "..",
        "..",
        "..",
        "..",
        "package",
        "yuxi",
        "channels",
        "plugins",
        "feishu",
    )
    return load_manifest_from_dir(os.path.abspath(plugin_dir))


# ------------------------------------------------------------------
# 模块导出完整性
# ------------------------------------------------------------------


@pytest.mark.unit
class TestConstantsExports:
    """验证 _constants.py 模块导出完整。"""

    def test_all_contains_channel_target(self):
        assert "CHANNEL_TARGET" in _constants.__all__

    def test_all_contains_feishu_api_dep(self):
        assert "FEISHU_API_DEP" in _constants.__all__

    def test_all_contains_http_constants(self):
        assert "HTTP_TIMEOUT_SECONDS" in _constants.__all__
        assert "HTTP_MAX_CONNECTIONS" in _constants.__all__
        assert "HTTP_MAX_KEEPALIVE_CONNECTIONS" in _constants.__all__

    def test_all_matches_defined_names(self):
        """``__all__`` 应恰好包含模块中定义的全部公开常量。"""
        expected = {
            "CHANNEL_TARGET",
            "FEISHU_API_DEP",
            "HTTP_TIMEOUT_SECONDS",
            "HTTP_MAX_CONNECTIONS",
            "HTTP_MAX_KEEPALIVE_CONNECTIONS",
        }
        assert set(_constants.__all__) == expected


# ------------------------------------------------------------------
# 常量值与 manifest 对齐（F-03 单真相源）
# ------------------------------------------------------------------


@pytest.mark.unit
class TestConstantsAlignWithManifest:
    """验证 _constants.py 常量值与 manifest.json 声明对齐。"""

    def test_channel_target_matches_manifest_channel_type(self, feishu_manifest):
        assert _constants.CHANNEL_TARGET == feishu_manifest.channel_type

    def test_channel_target_matches_manifest_provides(self, feishu_manifest):
        """CHANNEL_TARGET 也应出现在 manifest provides 中。"""
        assert _constants.CHANNEL_TARGET in feishu_manifest.provides

    def test_http_timeout_aligns_with_request_timeout_ms(self, feishu_manifest):
        """HTTP_TIMEOUT_SECONDS（秒）与 manifest request_timeout_ms.default（毫秒）对齐。"""
        field = next(f for f in feishu_manifest.config_schema if f.key == "request_timeout_ms")
        assert _constants.HTTP_TIMEOUT_SECONDS == field.default / 1000.0

    def test_http_max_connections_aligns_with_resource_quota(self, feishu_manifest):
        """HTTP_MAX_CONNECTIONS 与 manifest resource_quota.max_connections 对齐。"""
        assert feishu_manifest.resource_quota is not None
        assert _constants.HTTP_MAX_CONNECTIONS == feishu_manifest.resource_quota.max_connections


# ------------------------------------------------------------------
# 常量值合理性
# ------------------------------------------------------------------


@pytest.mark.unit
class TestConstantsSanity:
    """验证 _constants.py 常量值的基本合理性。"""

    def test_channel_target_is_feishu(self):
        assert _constants.CHANNEL_TARGET == "feishu"

    def test_feishu_api_dep_is_string(self):
        assert isinstance(_constants.FEISHU_API_DEP, str)
        assert _constants.FEISHU_API_DEP == "feishu_api"

    def test_http_timeout_positive(self):
        assert _constants.HTTP_TIMEOUT_SECONDS > 0

    def test_http_max_connections_positive(self):
        assert _constants.HTTP_MAX_CONNECTIONS > 0

    def test_http_keepalive_le_max_connections(self):
        """keepalive 连接数上限不应超过最大连接数。"""
        assert _constants.HTTP_MAX_KEEPALIVE_CONNECTIONS <= _constants.HTTP_MAX_CONNECTIONS