refactor: Refactor the service of retrieval the recommend app (#9302)

api/services/recommend_app/recommend_app_factory.py

@@ -0,0 +1,23 @@
+from services.recommend_app.buildin.buildin_retrieval import BuildInRecommendAppRetrieval
+from services.recommend_app.database.database_retrieval import DatabaseRecommendAppRetrieval
+from services.recommend_app.recommend_app_base import RecommendAppRetrievalBase
+from services.recommend_app.recommend_app_type import RecommendAppType
+from services.recommend_app.remote.remote_retrieval import RemoteRecommendAppRetrieval
+
+
+class RecommendAppRetrievalFactory:
+    @staticmethod
+    def get_recommend_app_factory(mode: str) -> type[RecommendAppRetrievalBase]:
+        match mode:
+            case RecommendAppType.REMOTE:
+                return RemoteRecommendAppRetrieval
+            case RecommendAppType.DATABASE:
+                return DatabaseRecommendAppRetrieval
+            case RecommendAppType.BUILDIN:
+                return BuildInRecommendAppRetrieval
+            case _:
+                raise ValueError(f"invalid fetch recommended apps mode: {mode}")
+
+    @staticmethod
+    def get_buildin_recommend_app_retrieval():
+        return BuildInRecommendAppRetrieval