Phase 4: Runtime and LiveView Integration

[pcharbon70]

Summary

Implements the LiveView integration layer that manages screen lifecycle, session state, and event handling.

Section 4.1 - LiveView Mount Integration

• AshUI.LiveView.Integration with mount_ui_screen/3
• Screen authorization on mount
• Screen compilation to IUR
• Binding evaluation for initial render
• AshUI.LiveView.Hooks for lifecycle management

Section 4.2 - LiveView Update Integration

• Subscribe/unsubscribe to Ash resource change notifications
• Handle resource change notifications (created, updated, destroyed)
• Re-evaluate affected bindings on notification
• Batch multiple updates for performance
• Cleanup subscriptions on unmount

Section 4.3 - Event Handling Integration

• Event routing to appropriate handlers
• Value change events (phx-blur, phx-change)
• Action events (phx-click, phx-submit)
• Event data validation
• Wire handlers for screen bindings

Section 4.4 - Screen Lifecycle Management

• Lifecycle hooks (on_init, on_update, on_unmount, on_error)
• Session initialization with unique IDs
• State isolation between LiveView sessions
• Session-specific state storage
• User-defined lifecycle callbacks

Section 4.5 - Error Handling and Recovery

• Compilation error handling
• Binding error handling with fallback values
• Action error handling with flash feedback
• Authorization error handling
• Runtime error handling with stacktraces
• Recovery strategies (retry, fallback, skip, abort)
• Retry with exponential backoff

Section 4.6 - Integration Tests

• Mount lifecycle integration scenarios
• Event handling integration scenarios
• Reactivity integration scenarios
• End-to-end screen lifecycle tests
• Session management tests
• Telemetry event tests

Test plan

• All mount integration tests pass
• All update integration tests pass
• All event handling tests pass
• All lifecycle management tests pass
• All error handling tests pass
• Integration tests validate end-to-end scenarios