from smolagents import CodeAgent,DuckDuckGoSearchTool, HfApiModel,load_tool,tool
import datetime
import requests
import pytz
import yaml
from tools.final_answer import FinalAnswerTool
import networkx as nx
import matplotlib.pyplot as plt
import io
from PIL import Image
from Gradio_UI import GradioUI

# Below is an example of a tool that does nothing. Amaze us with your creativity !
@tool
def generate_dependency_graph(dependencies: list) -> Image.Image:
    """Generates a high-contrast dependency graph from a list of feature dependencies using NetworkX.
    
    Args:
        dependencies: A list of tuples where each tuple (A, B) means B depends on A.

    Returns:
        An image of the dependency graph.
    """
    # Create a directed graph
    G = nx.DiGraph()
    G.add_edges_from(dependencies)

    # Define layout for better visualization
    pos = nx.spring_layout(G, seed=42)  

    # Set up the figure
    plt.figure(figsize=(8, 6))
    
    # Draw nodes with a strong black-and-white contrast
    nx.draw_networkx_nodes(G, pos, node_color="white", edgecolors="black", node_size=3000, linewidths=2)

    # Draw edges with thick black lines
    nx.draw_networkx_edges(G, pos, edge_color="black", width=2, arrows=True, arrowstyle="-|>", arrowsize=15)

    # Draw labels with larger, bold font
    nx.draw_networkx_labels(G, pos, font_size=14, font_family="Arial", font_weight="bold")

    # Remove axes for a cleaner look
    plt.axis("off")

    # Save the image to memory instead of a file
    buf = io.BytesIO()
    plt.savefig(buf, format="PNG", bbox_inches="tight", dpi=200)
    plt.close()

    # Return the image
    buf.seek(0)
    return Image.open(buf)



@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()

# 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,generate_dependency_graph], ## 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()