from typing import Optional, Type, TYPE_CHECKING
from src.plugin_system.base.base_tool import BaseTool
from src.plugin_system.base.component_types import ComponentType

from src.common.logger import get_logger

if TYPE_CHECKING:
    from src.chat.message_receive.chat_stream import ChatStream

logger = get_logger("tool_api")


def get_tool_instance(tool_name: str, chat_stream: Optional["ChatStream"] = None) -> Optional[BaseTool]:
    """获取公开工具实例
    
    Args:
        tool_name: 工具名称
        chat_stream: 聊天流对象，用于传递聊天上下文信息
        
    Returns:
        Optional[BaseTool]: 工具实例，如果未找到则返回None
    """
    from src.plugin_system.core import component_registry

    # 获取插件配置
    tool_info = component_registry.get_component_info(tool_name, ComponentType.TOOL)
    if tool_info:
        plugin_config = component_registry.get_plugin_config(tool_info.plugin_name)
    else:
        plugin_config = None

    tool_class: Type[BaseTool] = component_registry.get_component_class(tool_name, ComponentType.TOOL)  # type: ignore
    return tool_class(plugin_config, chat_stream) if tool_class else None


def get_llm_available_tool_definitions():
    """获取LLM可用的工具定义列表

    Returns:
        List[Tuple[str, Dict[str, Any]]]: 工具定义列表，为[("tool_name", 定义)]
    """
    from src.plugin_system.core import component_registry

    llm_available_tools = component_registry.get_llm_available_tools()
    return [(name, tool_class.get_tool_definition()) for name, tool_class in llm_available_tools.items()]
