156 lines
7.3 KiB
Python
156 lines
7.3 KiB
Python
# ================================================================
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# services/data/app/services/weather_service.py - FIXED VERSION
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# ================================================================
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"""Weather data service with improved error handling"""
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from typing import List, Dict, Any, Optional
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from datetime import datetime, timedelta
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from sqlalchemy.ext.asyncio import AsyncSession
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from sqlalchemy import select, and_
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import structlog
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from app.models.weather import WeatherData, WeatherForecast
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from app.external.aemet import AEMETClient
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from app.schemas.external import WeatherDataResponse, WeatherForecastResponse
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logger = structlog.get_logger()
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class WeatherService:
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def __init__(self):
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self.aemet_client = AEMETClient()
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async def get_current_weather(self, latitude: float, longitude: float) -> Optional[WeatherDataResponse]:
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"""Get current weather for location"""
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try:
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logger.debug("Getting current weather", lat=latitude, lon=longitude)
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weather_data = await self.aemet_client.get_current_weather(latitude, longitude)
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if weather_data:
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logger.debug("Weather data received", source=weather_data.get('source'))
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return WeatherDataResponse(**weather_data)
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else:
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logger.warning("No weather data received from AEMET client")
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return None
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except Exception as e:
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logger.error("Failed to get current weather", error=str(e), lat=latitude, lon=longitude)
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return None
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async def get_weather_forecast(self, latitude: float, longitude: float, days: int = 7) -> List[WeatherForecastResponse]:
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"""Get weather forecast for location"""
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try:
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logger.debug("Getting weather forecast", lat=latitude, lon=longitude, days=days)
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forecast_data = await self.aemet_client.get_forecast(latitude, longitude, days)
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if forecast_data:
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logger.debug("Forecast data received", count=len(forecast_data))
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# Validate each forecast item before creating response
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valid_forecasts = []
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for item in forecast_data:
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try:
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if isinstance(item, dict):
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# Ensure required fields are present
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forecast_item = {
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"forecast_date": item.get("forecast_date", datetime.now()),
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"generated_at": item.get("generated_at", datetime.now()),
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"temperature": float(item.get("temperature", 15.0)),
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"precipitation": float(item.get("precipitation", 0.0)),
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"humidity": float(item.get("humidity", 50.0)),
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"wind_speed": float(item.get("wind_speed", 10.0)),
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"description": str(item.get("description", "Variable")),
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"source": str(item.get("source", "unknown"))
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}
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valid_forecasts.append(WeatherForecastResponse(**forecast_item))
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else:
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logger.warning("Invalid forecast item type", item_type=type(item))
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except Exception as item_error:
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logger.warning("Error processing forecast item", error=str(item_error), item=item)
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continue
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logger.debug("Valid forecasts processed", count=len(valid_forecasts))
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return valid_forecasts
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else:
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logger.warning("No forecast data received from AEMET client")
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return []
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except Exception as e:
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logger.error("Failed to get weather forecast", error=str(e), lat=latitude, lon=longitude)
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return []
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async def get_historical_weather(self,
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latitude: float,
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longitude: float,
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start_date: datetime,
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end_date: datetime,
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db: AsyncSession) -> List[WeatherDataResponse]:
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"""Get historical weather data"""
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try:
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logger.debug("Getting historical weather",
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lat=latitude, lon=longitude,
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start=start_date, end=end_date)
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# First check database
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location_id = f"{latitude:.4f},{longitude:.4f}"
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stmt = select(WeatherData).where(
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and_(
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WeatherData.location_id == location_id,
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WeatherData.date >= start_date,
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WeatherData.date <= end_date
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)
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).order_by(WeatherData.date)
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result = await db.execute(stmt)
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db_records = result.scalars().all()
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if db_records:
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logger.debug("Historical data found in database", count=len(db_records))
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return [WeatherDataResponse(
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date=record.date,
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temperature=record.temperature,
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precipitation=record.precipitation,
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humidity=record.humidity,
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wind_speed=record.wind_speed,
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pressure=record.pressure,
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description=record.description,
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source=record.source
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) for record in db_records]
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# If not in database, fetch from API and store
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logger.debug("Fetching historical data from AEMET API")
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weather_data = await self.aemet_client.get_historical_weather(
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latitude, longitude, start_date, end_date
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)
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if weather_data:
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# Store in database for future use
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try:
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for data in weather_data:
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weather_record = WeatherData(
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location_id=location_id,
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date=data.get('date', datetime.now()),
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temperature=data.get('temperature'),
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precipitation=data.get('precipitation'),
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humidity=data.get('humidity'),
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wind_speed=data.get('wind_speed'),
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pressure=data.get('pressure'),
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description=data.get('description'),
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source="aemet",
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raw_data=str(data)
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)
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db.add(weather_record)
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await db.commit()
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logger.debug("Historical data stored in database", count=len(weather_data))
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except Exception as db_error:
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logger.warning("Failed to store historical data in database", error=str(db_error))
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await db.rollback()
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return [WeatherDataResponse(**item) for item in weather_data]
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else:
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logger.warning("No historical weather data received")
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return []
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except Exception as e:
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logger.error("Failed to get historical weather", error=str(e))
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return [] |