Initial commit

app/infrastructure/bootstrap.py

@@ -0,0 +1,40 @@
+from dataclasses import dataclass
+from pathlib import Path
+from app.infrastructure.constants import DATABASE_URL
+from app.infrastructure.ModelConverterImpl import ModelConverterImpl
+from app.infrastructure.database import Base, create_engine_and_session
+from app.infrastructure.ModelStorageImpl import ModelStorageImpl
+
+
+@dataclass(slots=True)
+class Container:
+    storage: ModelStorageImpl
+    converter: ModelConverterImpl
+    engine: object
+    session_factory: object
+
+
+_container: Container | None = None
+
+
+def get_container() -> Container:
+    global _container
+    if _container is None:
+        storage = ModelStorageImpl()
+        engine, session_factory = create_engine_and_session(DATABASE_URL)
+        _container = Container(
+            storage=storage,
+            converter=ModelConverterImpl(),
+            engine=engine,
+            session_factory=session_factory,
+        )
+    return _container
+
+
+def initialize_application() -> None:
+    container = get_container()
+    container.storage.ensure_directories()
+    engine_path = container.engine.url.database
+    if engine_path:
+        Path(engine_path).parent.mkdir(parents=True, exist_ok=True)
+    Base.metadata.create_all(bind=container.engine)