from smolagents import CodeAgent,DuckDuckGoSearchTool, HfApiModel,load_tool,tool
import os
from google.oauth2.credentials import Credentials
from googleapiclient.discovery import build
import datetime
import requests
import pytz
import yaml
from tools.final_answer import FinalAnswerTool

from Gradio_UI import GradioUI

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

def get_gmail_service():
    creds = Credentials(
        token=None,
        refresh_token=os.environ["GMAIL_REFRESH_TOKEN"],
        client_id=os.environ["GMAIL_CLIENT_ID"],
        client_secret=os.environ["GMAIL_CLIENT_SECRET"],
        token_uri="https://oauth2.googleapis.com/token",
    )
    return build("gmail", "v1", credentials=creds)

@tool
def read_latest_emails(max_results: int = 5) -> str:
    """Reads the latest emails from Gmail inbox.
    
    Args:
        max_results: Number of emails to fetch (default 5)
    
    Returns:
        A summary of recent emails
    """
    service = get_gmail_service()
    results = service.users().messages().list(
        userId="me", maxResults=max_results, labelIds=["INBOX"]
    ).execute()
    
    messages = results.get("messages", [])
    summaries = []
    
    for msg in messages:
        detail = service.users().messages().get(
            userId="me", id=msg["id"], format="metadata",
            metadataHeaders=["From", "Subject", "Date"]
        ).execute()
        headers = {h["name"]: h["value"] for h in detail["payload"]["headers"]}
        summaries.append(
            f"From: {headers.get('From')}\n"
            f"Subject: {headers.get('Subject')}\n"
            f"Date: {headers.get('Date')}"
        )
    
    return "\n\n".join(summaries)  

@tool
def send_email(to: str, subject: str, body: str) -> str:
    """Sends an email via Gmail.
    
    Args:
        to: Recipient email address
        subject: Email subject
        body: Email body text
    
    Returns:
        Success or error message
    """
    import base64
    from email.mime.text import MIMEText
    
    service = get_gmail_service()
    message = MIMEText(body)
    message["to"] = to
    message["subject"] = subject
    
    raw = base64.urlsafe_b64encode(message.as_bytes()).decode()
    service.users().messages().send(
        userId="me", body={"raw": raw}
    ).execute()
    
    return f"Email sent to {to} successfully!"

@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,read_latest_emails,send_email], ## 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()