"""``GlobalStateMachine`` 中 MCP/ToolConfig/CustomToolset 注册表测试。

GSM 现在走 PostgresDatabase Actor，这里绕过 Ray 直接构造实例，
用 AsyncMock 模拟 postgres_database 的 remote 调用。
"""

from __future__ import annotations

from typing import Any, Dict
from unittest.mock import AsyncMock, MagicMock

import pytest

from kilostar.core.global_state_machine import global_state_machine as gsm_module


@pytest.fixture
def gsm_instance(monkeypatch):
    GSMClass = gsm_module.GlobalStateMachine.__ray_actor_class__
    obj = GSMClass.__new__(GSMClass)
    obj._mcp_servers = {}
    obj._tool_configs = {}
    obj._custom_toolsets = {}
    obj._global_provider_manager = MagicMock()
    obj._global_tool_manager = MagicMock()
    obj._global_tool_manager.is_third_party_tool = lambda name: name.startswith("tp_")
    obj._global_tool_manager.rebuild_custom_toolsets = MagicMock()
    obj._global_skill_manager = MagicMock()
    obj._global_individual_manager = MagicMock()
    obj.postgres_database = MagicMock()
    # 新加的 object-store 快照状态
    obj._config_version = 0
    obj._current_ref = None
    # 这套老测试覆盖的是注册表行为，不关心快照发布；
    # 把 _publish_snapshot 替换成 no-op 计数器，避免触达 ray.put 与 manager 内部细节
    obj._publish_count = 0

    def _stub_publish():
        obj._publish_count += 1
        obj._config_version += 1

    obj._publish_snapshot = _stub_publish
    return obj


# ─── MCP server registry ────────────────────────────────────────────────────


@pytest.mark.asyncio
async def test_add_mcp_server(gsm_instance):
    obj = gsm_instance
    saved = {"server_id": "fs", "name": "fs", "transport": "stdio"}
    obj.postgres_database.upsert_mcp_server.remote = AsyncMock(return_value=saved)

    ok = await obj.add_mcp_server("fs", {"name": "fs", "transport": "stdio"})
    assert ok is True
    assert obj._mcp_servers["fs"] == saved


def test_get_mcp_server_configs_returns_copy(gsm_instance):
    obj = gsm_instance
    obj._mcp_servers["fs"] = {"name": "fs", "transport": "stdio"}
    res1 = obj.get_mcp_server_configs()
    res1["fs"] = {"mutated": True}
    res2 = obj.get_mcp_server_configs()
    assert res2["fs"]["name"] == "fs"


def test_get_mcp_server_returns_none_when_missing(gsm_instance):
    assert gsm_instance.get_mcp_server("nope") is None


def test_list_mcp_servers_includes_server_id(gsm_instance):
    obj = gsm_instance
    obj._mcp_servers["fs"] = {"name": "fs", "transport": "stdio"}
    listed = obj.list_mcp_servers()
    assert listed[0]["server_id"] == "fs"
    assert listed[0]["name"] == "fs"


@pytest.mark.asyncio
async def test_delete_mcp_server(gsm_instance):
    obj = gsm_instance
    obj._mcp_servers["fs"] = {"name": "fs"}
    obj.postgres_database.delete_mcp_server_db.remote = AsyncMock(return_value=True)

    assert await obj.delete_mcp_server("fs") is True
    assert "fs" not in obj._mcp_servers


@pytest.mark.asyncio
async def test_delete_unknown_mcp_server(gsm_instance):
    obj = gsm_instance
    obj.postgres_database.delete_mcp_server_db.remote = AsyncMock(return_value=False)
    assert await obj.delete_mcp_server("nope") is False


# ─── tool_configs ───────────────────────────────────────────────────────────


@pytest.mark.asyncio
async def test_set_and_get_tool_config(gsm_instance):
    obj = gsm_instance
    obj.postgres_database.upsert_tool_config.remote = AsyncMock(
        return_value={"tool_name": "tavily_search", "config": {"api_key": "xxx"}}
    )
    await obj.set_tool_config("tavily_search", {"api_key": "xxx"})
    assert obj.get_tool_config("tavily_search") == {"api_key": "xxx"}


def test_get_unknown_tool_config_returns_empty(gsm_instance):
    assert gsm_instance.get_tool_config("not_exist") == {}


def test_get_tool_config_is_isolated_copy(gsm_instance):
    obj = gsm_instance
    obj._tool_configs["tavily_search"] = {"api_key": "xxx"}
    snapshot = obj.get_tool_config("tavily_search")
    snapshot["api_key"] = "changed"
    assert obj.get_tool_config("tavily_search") == {"api_key": "xxx"}


@pytest.mark.asyncio
async def test_delete_tool_config(gsm_instance):
    obj = gsm_instance
    obj._tool_configs["tavily_search"] = {"api_key": "xxx"}
    obj.postgres_database.delete_tool_config_db.remote = AsyncMock(return_value=True)
    assert await obj.delete_tool_config("tavily_search") is True
    assert obj.get_tool_config("tavily_search") == {}


@pytest.mark.asyncio
async def test_delete_unknown_tool_config(gsm_instance):
    obj = gsm_instance
    obj.postgres_database.delete_tool_config_db.remote = AsyncMock(return_value=False)
    assert await obj.delete_tool_config("not_exist") is False


def test_list_tool_configs(gsm_instance):
    obj = gsm_instance
    obj._tool_configs["tavily_search"] = {"api_key": "xxx"}
    obj._tool_configs["notion"] = {"token": "yyy"}
    raw = obj.list_tool_configs()
    assert raw["tavily_search"] == {"api_key": "xxx"}
    assert raw["notion"] == {"token": "yyy"}


# ─── Custom Toolset ─────────────────────────────────────────────────────────


@pytest.mark.asyncio
async def test_add_custom_toolset_success(gsm_instance):
    obj = gsm_instance
    saved = {"toolset_id": "t1", "name": "my-set", "tools": ["tp_a", "tp_b"]}
    obj.postgres_database.upsert_custom_toolset.remote = AsyncMock(return_value=saved)

    result = await obj.add_custom_toolset(
        toolset_id="t1", name="my-set", tools=["tp_a", "tp_b"]
    )
    assert result == saved
    assert obj._custom_toolsets["t1"] == saved
    obj._global_tool_manager.rebuild_custom_toolsets.assert_called()


@pytest.mark.asyncio
async def test_add_custom_toolset_rejects_system_tools(gsm_instance):
    obj = gsm_instance
    with pytest.raises(ValueError, match="不合法"):
        await obj.add_custom_toolset(
            toolset_id="t2", name="bad", tools=["system_tool"]
        )


def test_list_custom_toolsets(gsm_instance):
    obj = gsm_instance
    obj._custom_toolsets["t1"] = {"toolset_id": "t1", "name": "a", "tools": []}
    assert len(obj.list_custom_toolsets()) == 1


def test_get_custom_toolset(gsm_instance):
    obj = gsm_instance
    obj._custom_toolsets["t1"] = {"toolset_id": "t1", "name": "a"}
    assert obj.get_custom_toolset("t1")["name"] == "a"
    assert obj.get_custom_toolset("nope") is None


@pytest.mark.asyncio
async def test_delete_custom_toolset(gsm_instance):
    obj = gsm_instance
    obj._custom_toolsets["t1"] = {"toolset_id": "t1"}
    obj.postgres_database.delete_custom_toolset.remote = AsyncMock(return_value=True)
    assert await obj.delete_custom_toolset("t1") is True
    assert "t1" not in obj._custom_toolsets
    obj._global_tool_manager.rebuild_custom_toolsets.assert_called()