from smolagents import CodeAgent,DuckDuckGoSearchTool, HfApiModel,load_tool,tool
import datetime
from typing import Optional
from dateutil import parser # for flexible date parsing
import requests
import pytz
import yaml
from tools.final_answer import FinalAnswerTool

from Gradio_UI import GradioUI
import gradio as gr

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


def parse_date(date_str: str) -> datetime.datetime: # Note the type hint change
    try:
        return parser.parse(date_str)
    except:
        return datetime.datetime.now() # Changed here


@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)}"

@tool
def get_horoscope(sign: str, date: str = None, language: str = "EN") -> str:
    """Fetches the horoscope for a given zodiac sign and date.
    Uses the ExaWeb API. Defaults to today if no date is provided.
    
    Args:
        sign: Zodiac sign (e.g., Aries, Taurus, Gemini)
        date: Date in any format (optional)
        language: Language code (e.g., 'EN' for English, 'HI' for Hindi)
    """
    try:
        if date:
            date_obj = parse_date(date)
        else:
            date_obj = datetime.datetime.now()

        formatted_date = date_obj.strftime("%d-%m-%Y")

        params = {
            "rashi": sign.upper(),
            "language": language,
            "day": formatted_date  # Always include the formatted day
        }

        url = "https://api.exaweb.in:3004/api/rashi"
        response = requests.get(url, params=params)
        response.raise_for_status()
        data = response.json()

        sign_upper = sign.upper()
        sign_data = data.get(sign_upper)

        if sign_data:
            return sign_data

        return f"No horoscope found for sign: {sign}"

    except Exception as e:
        return f"Error fetching horoscope: {str(e)}"


@tool
def get_date_panchang(date: str = None, data_language: str = "EN") -> str:
    """Fetches the Panchang data for a given date.
    If the user does not provide a date, use today's real date.
    Args:
        date: Date in any format (optional)
        data_language: Language of the Panchang data (e.g., 'EN' for English, 'HI' for Hindi).
    """


    if not date:
        now = datetime.datetime.now()
    else:
        try:
            now = datetime.datetime.strptime(date, "%Y-%m-%d")
        except ValueError:
            return "❌ Invalid date format. Use YYYY-MM-DD."

    api_date = now.strftime("%d/%m/%y")  # Format as DD/MM/YY for API

    try:
        url = (
            f"https://api.exaweb.in:3004/api/panchang/daily?"
            f"date={api_date}&app_language=EN&data_language={data_language}"
        )

        headers = {
            "api_key": "anvl_bharat_cal123",  # Replace with your actual token
            "Content-Type": "application/json"
        }

        response = requests.get(url, headers=headers)
        response.raise_for_status()
        data = response.json()

        if not data or not isinstance(data, dict):
            return "⚠️ Empty or unexpected response."

        # Format the entire Panchang data nicely
        lines = [f"📅 {data.get('date', api_date)} का पंचांग ({data.get('location', 'Unknown')}):\n"]

        for key, value in data.items():
            if key in ["date", "location", "app_language", "data_language", "universalDate"]:
                continue  # Skip metadata

            if isinstance(value, list):
                if all(isinstance(item, str) for item in value):
                    lines.append(f"🔹 {key}: {', '.join(value)}")
                elif all(isinstance(item, dict) for item in value):
                    lines.append(f"🔹 {key}:")
                    for item in value:
                        vals = item.get("values", [])
                        upto = item.get("upto", "")
                        lines.append(f"    • {', '.join(vals)} {'— ' + upto if upto else ''}")
            elif isinstance(value, str):
                lines.append(f"🔹 {key}: {value}")
            elif isinstance(value, int):
                lines.append(f"🔹 {key}: {value}")

        return "\n".join(lines)

    except Exception as e:
        return f"❌ Failed to fetch Panchang for {api_date}: {str(e)}"

        

@tool
def get_holidays(year: int = None, app_language: str = "EN", data_language: str = "HI") -> str:
    """
    Fetches holidays from all categories (Hindu, Islamic, Christian) for a given year from ExaWeb API.

    Args:
        year: Year (e.g., 2025). Optional — defaults to current year.
        app_language: App language for API (default: "EN").
        data_language: Data language for holidays (default: "HI").
    """
    if not year:
        year = datetime.datetime.now().year

    params = {
        "app_language": app_language,
        "data_language": data_language,
        "year": year
    }
    headers = {
        "api_key": "anvl_bharat_cal123"
    }

    try:
        response = requests.get(
            "https://api.exaweb.in:3004/api/panchang/holiday",
            params=params,
            headers=headers
        )
        response.raise_for_status()
        data = response.json()

        formatted = []

        for category, groups in data.items():
            if category in ["year", "app_language", "data_language"]:
                continue  # Skip non-holiday keys

            formatted.append(f"\n=== {category} Holidays ===")

            for group in groups:
                for holiday in group:
                    title = holiday.get("title", "")
                    date = holiday.get("date", "")
                    formatted.append(f"{date}: {title}")

        return "\n".join(formatted) if formatted else f"No holidays found for {year}."

    except requests.RequestException as e:
        return f"Error fetching holidays: {e}"




@tool
def get_monthly_festivals(year: Optional[int] = None,month: Optional[str] = None,app_language: str = "EN",data_language: str = "EN") -> str:
    """
    Fetches festival data for a specific month and year from the ExaWeb API.

    Args:
        year: The year for which to fetch the festivals (e.g., 2025).
              If not provided, the current year will be used.
        month: The full name of the month for which to fetch the festivals (e.g., "june").
               If not provided, the current month will be used.
        app_language: The language for the application interface (default: "EN").
        data_language: The language for the festival names (default: "EN").

    Returns:
        A formatted string listing the festivals for the given month and year,
        or an error message if the data cannot be fetched.
    """
    # Set default year to the current year if not provided
    if not year:
        year = datetime.datetime.now().year

    # Set default month to the current month if not provided
    if not month:
        month = datetime.datetime.now().strftime("%B").lower()
    else:
        month = month.lower()

    # API endpoint and parameters
    api_url = "https://api.exaweb.in:3004/api/panchang/festival"
    params = {
        "year": year,
        "month": month,
        "app_language": app_language,
        "data_language": data_language,
    }
    headers = {
        "api_key": "anvl_bharat_cal123", 
        "Content-Type": "application/json"
    }

    try:
        # Make the GET request to the API
        response = requests.get(api_url, params=params, headers=headers)
        # Raise an exception for bad status codes (4xx or 5xx)
        response.raise_for_status()
        
        # Parse the JSON response
        data = response.json()

        if not data:
            return f"No festival data found for {month.capitalize()} {year}."

        # Format the data for display
        formatted_lines = []
        for entry in data:
            date = entry.get("date", "Unknown date")
            festivals = entry.get("festivals", [])
            
            # Filter out entries where the only festival is "NA"
            meaningful_festivals = [f for f in festivals if f.strip().upper() != "NA"]
            
            if meaningful_festivals:
                # Join multiple festivals with a comma
                festivals_str = ", ".join(meaningful_festivals)
                formatted_lines.append(f"{date}: {festivals_str}")

        if not formatted_lines:
            return f"No festivals found for {month.capitalize()} {year}."

        return "\n".join(formatted_lines)

    except requests.exceptions.RequestException as e:
        # Handle connection errors, timeouts, etc.
        return f"An error occurred while fetching data from the API: {e}"
    except ValueError:
        # Handle cases where the response is not valid JSON
        return "Failed to decode the response from the API."



@tool
def get_panchang_field(field: str, date: str = None) -> str:
    """Fetches specific Panchang field like Tithi, Nakshatra, Yoga, etc.
    Args:
        field: The Panchang field to fetch (e.g., Tithi, Nakshatra)
        date: Date in any format (optional — defaults to today)
    """
    if not date:
        date = datetime.now().strftime("%Y-%m-%d")
    return f"{field} on {date}: [Sample value]"

# Optional tool if needed in the future:
@tool
def get_festivals_today(date: str = None) -> str:
    """Fetches the festivals for a given date.
    Args:
        date: Date in any format (e.g., '2025-04-08'). Optional — defaults to today.
    """
    if not date:
        date = datetime.now().strftime("%Y-%m-%d")
    return f"Festivals on {date}: [Sample festival list]"


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='sarvamai/sarvam-m',# it is possible that this model may be overloaded
)


# 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,
           get_horoscope, 
           get_date_panchang,
           get_monthly_festivals,
           get_holidays, 
           get_panchang_field, 
           get_festivals_today,
           get_current_time_in_timezone, 
           my_custom_tool, 
           image_generation_tool
    ], ## 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()