state_management

State Management (Riverpod)

Overview The app uses flutter_riverpod to expose data as providers and to orchestrate UI state.

Key Providers - component_provider.dart - componentRepositoryProvider: Provides ComponentRepository implementation - componentsProvider: FutureProvider> – loads local components - componentSearchProvider: FutureProvider.family – (used earlier for remote search; local Components now filter in-memory)

• digikey_component_provider.dart
• digikeyComponentRepositoryProvider: Provides repository for DigiKey operations
• digikeyComponentsProvider: Loads list if needed (not shown initially in DigiKey page)

• digikeyComponentSearchProvider: Executes search against DigiKey endpoint

• category_provider.dart

• Provides full category structure for filtering and browsing

• digikey_token_provider.dart

• Exposes DigiKey token manager to acquire/refresh OAuth tokens when needed

Invalidation Patterns - After adding/editing components, UI calls ref.invalidate(componentsProvider) to refresh the local list. - On DigiKey add, UI invalidates both digikeyComponentsProvider and componentsProvider to reflect new items locally.

UI Binding - Screens call ref.watch(...) to subscribe to providers and render AsyncValue.when data/loading/error variants. - For dialogs or one-off reads, ref.read(...) is used.