db support

db.py

@@ -0,0 +1,28 @@
+from sqlalchemy import create_engine, Table, Column, MetaData, Integer, String, Boolean, DateTime, ForeignKey
+from sqlalchemy.ext.declarative import declarative_base
+from sqlalchemy.orm import sessionmaker, relationship, mapped_column
+import os
+
+# Set up SQLite database
+if os.getenv("SQLITE_FILE") is not None:
+    sqlite_file = os.getenv("SQLITE_FILE")
+else:
+    raise Exception("SQLite File not defined!")
+DATABASE_URI = f'sqlite:///{sqlite_file}'
+engine = create_engine(DATABASE_URI)
+Base = declarative_base()
+
+class DBGroupInstance(Base):
+    __tablename__ = "GroupInstances"
+    object_num = Column(Integer, primary_key=True, autoincrement=True)
+    timestamp = Column(DateTime, nullable=False)
+    instance_id = Column(String, nullable=False)
+    world_name = Column(String, nullable=False)
+    member_count = Column(Integer, nullable=False)
+
+# Create tables if they don't exist
+Base.metadata.create_all(engine)
+
+def get_session():
+    Session = sessionmaker(bind=engine)
+    return Session()