# agents/websearch_agent.py

from smolagents import ToolCallingAgent, DuckDuckGoSearchTool
from LLM.llm_models import websearch_model
from .get_websearch_prompt import get_websearch_prompt

class WebSearchAgent:
    _instance = None


    @property
    def agent(self):
        return self._web_search_agent

    def __new__(cls, *args, **kwargs):
        if not cls._instance:
            cls._instance = super().__new__(cls)
        return cls._instance

    def __init__(self, step_callbacks, agent_start_callback):
        if not hasattr(self, "_initialized"):
            self._initialized = True

            self._web_search_agent = ToolCallingAgent(
                model=websearch_model,
                tools=[DuckDuckGoSearchTool()],
                step_callbacks=step_callbacks,
                name="web_search_agent",
                description=(
                    "An agent that searches for relevant online courses, certifications, "
                    "and learning paths for employees."
                )
            )
            self._web_search_agent.prompt_templates['managed_agent'] = get_websearch_prompt(
            self._web_search_agent.prompt_templates['managed_agent']
        )

            if agent_start_callback:
                self._install_run_patch(agent_start_callback)

    def _install_run_patch(self, agent_start_callback):
        original_run = self._web_search_agent.run
        def patched_run(prompt: str, *args, **kwargs):
            if agent_start_callback:
                agent_start_callback(
                    f"🌐 Web Search Agent starting with Web Search",
                )
            return original_run(prompt, *args, **kwargs)

        self._web_search_agent.run = patched_run