"""权限模块测试"""

from __future__ import annotations

import pytest

from minenasai.agent.permissions import (
    ConfirmationStatus,
    DangerLevel,
    PermissionManager,
    ToolPermission,
)


class TestDangerLevel:
    """DangerLevel 枚举测试"""

    def test_danger_levels(self):
        """测试危险等级"""
        assert DangerLevel.SAFE.value == "safe"
        assert DangerLevel.CRITICAL.value == "critical"


class TestToolPermission:
    """ToolPermission 测试"""

    def test_default_permission(self):
        """测试默认权限"""
        perm = ToolPermission(
            name="test_tool",
            danger_level=DangerLevel.SAFE,
        )

        assert perm.requires_confirmation is False
        assert perm.rate_limit is None


class TestPermissionManager:
    """PermissionManager 测试"""

    def setup_method(self):
        """初始化"""
        self.manager = PermissionManager()

    def test_get_default_permission(self):
        """测试获取默认权限"""
        perm = self.manager.get_permission("read_file")

        assert perm is not None
        assert perm.danger_level == DangerLevel.SAFE

    def test_register_tool(self):
        """测试注册工具权限"""
        perm = ToolPermission(
            name="custom_tool",
            danger_level=DangerLevel.MEDIUM,
            description="自定义工具",
        )
        self.manager.register_tool(perm)

        result = self.manager.get_permission("custom_tool")
        assert result is not None
        assert result.danger_level == DangerLevel.MEDIUM

    def test_check_permission_allowed(self):
        """测试权限检查 - 允许"""
        allowed, reason = self.manager.check_permission("read_file")

        assert allowed is True

    def test_check_permission_unknown_tool(self):
        """测试权限检查 - 未知工具"""
        allowed, reason = self.manager.check_permission("unknown_tool")

        assert allowed is False
        assert "未知工具" in reason

    def test_check_permission_denied_path(self):
        """测试权限检查 - 禁止路径"""
        perm = ToolPermission(
            name="restricted_read",
            danger_level=DangerLevel.SAFE,
            denied_paths=["/etc/", "/root/"],
        )
        self.manager.register_tool(perm)

        allowed, reason = self.manager.check_permission(
            "restricted_read",
            params={"path": "/etc/passwd"},
        )

        assert allowed is False
        assert "禁止访问" in reason

    def test_requires_confirmation_by_level(self):
        """测试确认要求 - 按等级"""
        # HIGH 级别需要确认
        assert self.manager.requires_confirmation("delete_file") is True

        # SAFE 级别不需要确认
        assert self.manager.requires_confirmation("read_file") is False

    def test_requires_confirmation_explicit(self):
        """测试确认要求 - 显式设置"""
        perm = ToolPermission(
            name="explicit_confirm",
            danger_level=DangerLevel.LOW,
            requires_confirmation=True,
        )
        self.manager.register_tool(perm)

        assert self.manager.requires_confirmation("explicit_confirm") is True

    @pytest.mark.asyncio
    async def test_confirmation_flow(self):
        """测试确认流程"""
        request = await self.manager.request_confirmation(
            request_id="req-1",
            tool_name="delete_file",
            params={"path": "/test.txt"},
        )

        assert request.status == ConfirmationStatus.PENDING

        # 批准
        self.manager.approve_confirmation("req-1")
        assert request.status == ConfirmationStatus.APPROVED

    @pytest.mark.asyncio
    async def test_confirmation_deny(self):
        """测试拒绝确认"""
        request = await self.manager.request_confirmation(
            request_id="req-2",
            tool_name="delete_file",
            params={"path": "/test.txt"},
        )

        self.manager.deny_confirmation("req-2")
        assert request.status == ConfirmationStatus.DENIED

    @pytest.mark.asyncio
    async def test_get_pending_confirmations(self):
        """测试获取待处理确认"""
        await self.manager.request_confirmation(
            request_id="req-3",
            tool_name="test",
            params={},
        )

        pending = self.manager.get_pending_confirmations()
        assert len(pending) >= 1


class TestToolRegistry:
    """ToolRegistry 测试"""

    def test_import_registry(self):
        """测试导入注册中心"""
        from minenasai.agent import ToolRegistry, get_tool_registry

        registry = get_tool_registry()
        assert isinstance(registry, ToolRegistry)

    def test_register_builtin_tools(self):
        """测试注册内置工具"""
        from minenasai.agent import get_tool_registry, register_builtin_tools

        registry = get_tool_registry()
        initial_count = len(registry.list_tools())

        register_builtin_tools()

        # 应该有更多工具
        new_count = len(registry.list_tools())
        assert new_count >= initial_count

    def test_tool_decorator(self):
        """测试工具装饰器"""
        from minenasai.agent import get_tool_registry, tool

        @tool(name="decorated_tool", description="装饰器测试")
        async def decorated_tool(param: str) -> dict:
            return {"result": param}

        registry = get_tool_registry()
        tool_obj = registry.get("decorated_tool")

        assert tool_obj is not None
        assert tool_obj.description == "装饰器测试"

    @pytest.mark.asyncio
    async def test_execute_tool(self):
        """测试执行工具"""
        from minenasai.agent import DangerLevel, get_tool_registry

        registry = get_tool_registry()

        # 注册测试工具
        async def echo(message: str) -> dict:
            return {"echo": message}

        registry.register(
            name="echo",
            description="回显消息",
            func=echo,
            parameters={
                "type": "object",
                "properties": {"message": {"type": "string"}},
                "required": ["message"],
            },
            danger_level=DangerLevel.SAFE,
        )

        result = await registry.execute("echo", {"message": "hello"})

        assert result["success"] is True
        assert result["result"]["echo"] == "hello"

    def test_get_stats(self):
        """测试获取统计"""
        from minenasai.agent import get_tool_registry

        registry = get_tool_registry()
        stats = registry.get_stats()

        assert "total_tools" in stats
        assert "categories" in stats