@startuml API 删除应用
actor User
participant "AppCenter Router" as Router
participant "AppCenter Manager" as Manager
participant "FlowManager" as FlowManager
database MongoDB

User -> Router: DELETE /api/app/{appId}
Router -> Manager: fetch_app_data_by_id()
MongoDB --> Manager: return app data
Router -> Router: verify author
Router -> FlowManager: delete_flow_by_app_and_flow_id()
FlowManager -> MongoDB: delete flows
Router -> Manager: delete_app()
Manager -> MongoDB: start transaction
Manager -> MongoDB: delete app
Manager -> MongoDB: update user app_usage
MongoDB -> MongoDB: commit transaction
Manager --> Router: return result
Router --> User: return response
@enduml