RSSuper/tasks/native-business-logic-migration/15-implement-ios-state-management.md

15. Implement iOS state management (Combine/Observer)

meta: id: native-business-logic-migration-15 feature: native-business-logic-migration priority: P0 depends_on: [native-business-logic-migration-12] tags: [implementation, ios, state-management]

objective:

• Implement reactive state management using Combine

deliverables:

• FeedRepository.swift
• SubscriptionRepository.swift
• FeedViewModel.swift
• SubscriptionViewModel.swift
• State enumeration
• Error handling types

tests:

• Unit: Test repository methods
• Unit: Test ViewModel state transitions
• Unit: Test Combine publishers
• Integration: Test UI updates

acceptance_criteria:

• Repositories provide Combine publishers
• ViewModels manage state properly
• Error states handled
• Loading states implemented
• Memory efficient (no retain cycles)

validation:

• Run unit tests
• Check with Instruments for memory leaks

notes:

• Use Combine framework
• Follow Repository pattern
• Use @Published for SwiftUI integration