import requests
import os
import random
from typing import Optional, Dict
from utils.config import config

class NasaService:
    """Service for fetching NASA data including space weather"""
    
    def __init__(self):
        self.api_key = config.nasa_api_key or os.getenv("NASA_API_KEY")
        self.base_url = "https://api.nasa.gov"
    
    def get_apod(self) -> Optional[Dict]:
        """Get Astronomy Picture of the Day"""
        if not self.api_key:
            return None
        
        try:
            params = {
                'api_key': self.api_key,
                'thumbs': 'true'
            }
            
            response = requests.get(
                f"{self.base_url}/planetary/apod",
                params=params,
                timeout=10
            )
            
            if response.status_code == 200:
                return response.json()
            return None
        except Exception as e:
            print(f"Error fetching APOD: {e}")
            return None
    
    def get_space_weather_alerts(self) -> Optional[Dict]:
        """Get space weather alerts"""
        try:
            response = requests.get(
                f"{self.base_url}/DONKI/notifications",
                params={'api_key': self.api_key or 'DEMO_KEY'},
                timeout=10
            )
            
            if response.status_code == 200:
                data = response.json()
                # Get recent alerts (last 7 days)
                if isinstance(data, list) and len(data) > 0:
                    return data[0]  # Most recent alert
            return None
        except Exception as e:
            print(f"Error fetching space weather: {e}")
            return None
    
    def get_mars_weather(self) -> Optional[Dict]:
        """Get Mars weather data"""
        try:
            response = requests.get(
                f"{self.base_url}/insight_weather/",
                params={
                    'api_key': self.api_key or 'DEMO_KEY',
                    'feedtype': 'json',
                    'ver': '1.0'
                },
                timeout=10
            )
            
            if response.status_code == 200:
                return response.json()
            return None
        except Exception as e:
            print(f"Error fetching Mars weather: {e}")
            return None

# Global instance
nasa_service = NasaService()