import gradio as gr
import requests

def get_coordinates(city):
    """Get latitude and longitude from city name using OpenStreetMap Nominatim API."""
    try:
        url = f"https://nominatim.openstreetmap.org/search?city={city}&format=json"
        response = requests.get(url, headers={"User-Agent": "weather-app"})
        data = response.json()
        if not data:
            return None, None
        lat = float(data[0]["lat"])
        lon = float(data[0]["lon"])
        return lat, lon
    except:
        return None, None

def get_weather(city):
    lat, lon = get_coordinates(city)
    if lat is None or lon is None:
        return "City not found. Please try again."

    try:
        url = f"https://api.open-meteo.com/v1/forecast?latitude={lat}&longitude={lon}&current_weather=true"
        response = requests.get(url)
        data = response.json()

        if "current_weather" not in data:
            return "Weather data not available."

        weather = data["current_weather"]
        temp = weather["temperature"]
        wind = weather["windspeed"]
        code = weather["weathercode"]

        # Simple mapping of weather codes
        weather_codes = {
            0: "Clear sky",
            1: "Mainly clear",
            2: "Partly cloudy",
            3: "Overcast",
            45: "Fog",
            48: "Depositing rime fog",
            51: "Light drizzle",
            53: "Moderate drizzle",
            55: "Dense drizzle",
            61: "Slight rain",
            63: "Moderate rain",
            65: "Heavy rain",
            71: "Slight snow fall",
            73: "Moderate snow fall",
            75: "Heavy snow fall",
            80: "Rain showers",
            81: "Moderate rain showers",
            82: "Violent rain showers",
        }

        description = weather_codes.get(code, "Unknown")
        report = (
            f"Weather in {city}:\n"
            f"Temperature: {temp}°C\n"
            f"Condition: {description}\n"
            f"Wind Speed: {wind} km/h"
        )
        return report

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

# Gradio UI
iface = gr.Interface(
    fn=get_weather,
    inputs=gr.Textbox(label="Enter city name"),
    outputs=gr.Textbox(label="Weather Forecast"),
    title="Weather Forecast App",
    description="Enter a city name to get the current weather forecast (powered by Open-Meteo)."
)

if __name__ == "__main__":
    iface.launch()