Create new services: inventory, recipes, suppliers

services/recipes/app/core/database.py

@@ -0,0 +1,77 @@
+# services/recipes/app/core/database.py
+"""
+Database configuration and session management for Recipe Service
+"""
+
+from sqlalchemy import create_engine
+from sqlalchemy.orm import sessionmaker, Session
+from sqlalchemy.pool import StaticPool
+from contextlib import contextmanager
+from typing import Generator
+
+from .config import settings
+
+
+# Create database engine
+engine = create_engine(
+    settings.DATABASE_URL,
+    poolclass=StaticPool,
+    pool_pre_ping=True,
+    pool_recycle=300,
+    echo=settings.DEBUG,
+)
+
+# Create session factory
+SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
+
+
+def get_db() -> Generator[Session, None, None]:
+    """
+    Dependency to get database session
+    """
+    db = SessionLocal()
+    try:
+        yield db
+    finally:
+        db.close()
+
+
+@contextmanager
+def get_db_context() -> Generator[Session, None, None]:
+    """
+    Context manager for database session
+    """
+    db = SessionLocal()
+    try:
+        yield db
+        db.commit()
+    except Exception:
+        db.rollback()
+        raise
+    finally:
+        db.close()
+
+
+class DatabaseManager:
+    """Database management utilities"""
+    
+    @staticmethod
+    def create_all_tables():
+        """Create all database tables"""
+        from shared.database.base import Base
+        Base.metadata.create_all(bind=engine)
+    
+    @staticmethod
+    def drop_all_tables():
+        """Drop all database tables (for testing)"""
+        from shared.database.base import Base
+        Base.metadata.drop_all(bind=engine)
+    
+    @staticmethod
+    def get_session() -> Session:
+        """Get a new database session"""
+        return SessionLocal()
+
+
+# Database manager instance
+db_manager = DatabaseManager()