REFACTOR external service and improve websocket training

services/external/app/ingestion/base_adapter.py

@@ -0,0 +1,43 @@
+# services/external/app/ingestion/base_adapter.py
+"""
+Base adapter interface for city-specific data sources
+"""
+
+from abc import ABC, abstractmethod
+from typing import List, Dict, Any
+from datetime import datetime
+
+
+class CityDataAdapter(ABC):
+    """Abstract base class for city-specific data adapters"""
+
+    def __init__(self, city_id: str, config: Dict[str, Any]):
+        self.city_id = city_id
+        self.config = config
+
+    @abstractmethod
+    async def fetch_historical_weather(
+        self,
+        start_date: datetime,
+        end_date: datetime
+    ) -> List[Dict[str, Any]]:
+        """Fetch historical weather data for date range"""
+        pass
+
+    @abstractmethod
+    async def fetch_historical_traffic(
+        self,
+        start_date: datetime,
+        end_date: datetime
+    ) -> List[Dict[str, Any]]:
+        """Fetch historical traffic data for date range"""
+        pass
+
+    @abstractmethod
+    async def validate_connection(self) -> bool:
+        """Validate connection to data source"""
+        pass
+
+    def get_city_id(self) -> str:
+        """Get city identifier"""
+        return self.city_id