import gradio as gr
import random
import os
from smolagents import DuckDuckGoSearchTool, CodeAgent, WikipediaSearchTool, LiteLLMModel
from tools import DownloadTaskAttachmentTool, VisitWebpageTool


class MyAgent:
    def __init__(self):
        self.agent = CodeAgent(
            model=LiteLLMModel(model_id="openrouter/meta-llama/llama-4-maverick:free", api_key=os.getenv("OPENROUTER_KEY")),
            tools=[DuckDuckGoSearchTool(), WikipediaSearchTool(), VisitWebpageTool(), DownloadTaskAttachmentTool()],
            add_base_tools=True,
            additional_authorized_imports=['pandas', 'numpy', 'csv', 'subprocess', 'exec']
        )
        print("MyAgent initialized.")
    
    def __call__(self, question: str) -> str:
        print(f"Agent received question (first 50 chars): {question[:50]}...")
        agent_answer = self.agent.run(question)
        print(f"Agent answer: {agent_answer}")
        return agent_answer

    def download_file(self, task_id: str) -> str:
        """
        Downloads a file associated with the given task ID.
        Returns the file path where the file is saved locally.
        """
        file_url = f"{DEFAULT_API_URL}/files/{task_id}"
        local_file_path = f"downloads/{task_id}.file"

        print(f"Downloading file for task ID {task_id} from {file_url}...")
        try:
            response = requests.get(file_url, stream=True, timeout=15)
            response.raise_for_status()

            os.makedirs("downloads", exist_ok=True)
            with open(local_file_path, "wb") as file:
                for chunk in response.iter_content(chunk_size=8192):
                    file.write(chunk)

            print(f"File downloaded successfully: {local_file_path}")
            return local_file_path
        except requests.exceptions.RequestException as e:
            print(f"Error downloading file for task {task_id}: {e}")
            raise

    def launch_ui(self):
        GradioUI(self.agent).launch()

# if __name__ == "__main__":
#     my_agent = MyAgent()
#     my_agent.launch_ui()