from smolagents import CodeAgent,DuckDuckGoSearchTool, HfApiModel,load_tool,tool
import datetime
import requests
import pytz
import yaml
from tools.final_answer import FinalAnswerTool
from PIL import Image
import urllib.parse
from io import BytesIO


from Gradio_UI import GradioUI

# Below is an example of a tool that does nothing. Amaze us with your creativity !

@tool
def save_image_to_disk(image: Image.Image, filename: str) -> str:
    """A tool that securely saves a PIL Image object to the local disk.
    
    Args:
        image: The PIL Image object to be saved.
        filename: The desired filename (e.g., 'cyber_cat.png').
    """
    try:
        image.save(filename)
        return f"Success! Image permanently saved as {filename} in the current directory."
    except Exception as e:
        return f"Error saving image: {str(e)}"


        
@tool
def get_hacker_news_top_stories(limit: int = 5) -> str:
    """A tool that fetches the current top stories directly from Hacker News.
    
    Args:
        limit: The number of top stories to fetch (default is 5, max is 10).
    """
    try:
        # 1. 先获取当前热榜所有文章的 ID 列表 
        top_stories_url = "https://hacker-news.firebaseio.com/v0/topstories.json"
        response = requests.get(top_stories_url)
        story_ids = response.json()[:limit]  

        # 2. 遍历 ID，获取每篇文章的具体标题和链接
        results = []
        for i, story_id in enumerate(story_ids, 1):
            item_url = f"https://hacker-news.firebaseio.com/v0/item/{story_id}.json"
            item_data = requests.get(item_url).json()
            title = item_data.get("title", "No Title")
            url = item_data.get("url", "No URL")
            results.append(f"{i}. {title} ({url})")

            return "Here are the top Hacker News stories right now:\n" + "\n".join(results)
    except Exception as e:
        return f"Error fetching from Hacker News API: {str(e)}"

@tool
def my_custom_tool(arg1:str, arg2:int)-> str: #it's import to specify the return type
    #Keep this format for the description / args / args description but feel free to modify the tool
    """A tool that does nothing yet 
    Args:
        arg1: the first argument
        arg2: the second argument
    """
    return "What magic will you build ?"

@tool
def get_current_time_in_timezone(timezone: str) -> str:
    """A tool that fetches the current local time in a specified timezone.
    Args:
        timezone: A string representing a valid timezone (e.g., 'America/New_York').
    """
    try:
        # Create timezone object
        tz = pytz.timezone(timezone)
        # Get current time in that timezone
        local_time = datetime.datetime.now(tz).strftime("%Y-%m-%d %H:%M:%S")
        return f"The current local time in {timezone} is: {local_time}"
    except Exception as e:
        return f"Error fetching time for timezone '{timezone}': {str(e)}"


final_answer = FinalAnswerTool()

# 实例化 DuckDuckGo 搜索工具
search_tool = DuckDuckGoSearchTool()

# 实例化 Hacker news top stories 工具
hacker_news = get_hacker_news_top_stories

# 实例化时间工具
get_time = get_current_time_in_timezone

# 实例化 定制工具
custom = my_custom_tool

# 实例化image save tool
image_save = save_image_to_disk

# If the agent does not answer, the model is overloaded, please use another model or the following Hugging Face Endpoint that also contains qwen2.5 coder:
# model_id='https://pflgm2locj2t89co.us-east-1.aws.endpoints.huggingface.cloud' 

model = HfApiModel(
max_tokens=2096,
temperature=0.5,
model_id='Qwen/Qwen2.5-Coder-32B-Instruct',# it is possible that this model may be overloaded
custom_role_conversions=None,
)


# Import tool from Hub
image_generation_tool = load_tool("agents-course/text-to-image", trust_remote_code=True)

with open("prompts.yaml", 'r') as stream:
    prompt_templates = yaml.safe_load(stream)
    
agent = CodeAgent(
    model=model,
    tools=[final_answer, search_tool, image_generation_tool, hacker_news, get_time, custom, image_save], ## add your tools here (don't remove final answer)
    max_steps=6,
    verbosity_level=1,
    grammar=None,
    planning_interval=None,
    name=None,
    description=None,
    prompt_templates=prompt_templates
)


GradioUI(agent).launch()