feat(source): integrate logoUrl into edit source bloc

Updates the `EditSourceBloc` to fully manage the new `logoUrl` field.

This change introduces and registers the `_onLogoUrlChanged` event handler. It also updates the `_onEditSourceLoaded` method to populate the `logoUrl` from the fetched source. Finally, it modifies the `_onSavedAsDraft` and `_onPublished` methods to include the `logoUrl` when updating the `Source` instance. Comments for future logging have been added to enhance maintainability.

Author: fulleni

lib/content_management/bloc/edit_source/edit_source_bloc.dart

@@ -21,6 +21,7 @@ class EditSourceBloc extends Bloc<EditSourceEvent, EditSourceState> {
     on<EditSourceNameChanged>(_onNameChanged);
     on<EditSourceDescriptionChanged>(_onDescriptionChanged);
     on<EditSourceUrlChanged>(_onUrlChanged);
+    on<EditSourceLogoUrlChanged>(_onLogoUrlChanged);
     on<EditSourceTypeChanged>(_onSourceTypeChanged);
     on<EditSourceLanguageChanged>(_onLanguageChanged);
     on<EditSourceHeadquartersChanged>(_onHeadquartersChanged);
@@ -44,6 +45,7 @@ class EditSourceBloc extends Bloc<EditSourceEvent, EditSourceState> {
           name: source.name,
           description: source.description,
           url: source.url,
+          logoUrl: source.logoUrl,
           sourceType: () => source.sourceType,
           language: () => source.language,
           headquarters: () => source.headquarters,
@@ -89,6 +91,16 @@ class EditSourceBloc extends Bloc<EditSourceEvent, EditSourceState> {
     emit(state.copyWith(url: event.url, status: EditSourceStatus.initial));
   }
 
+  void _onLogoUrlChanged(
+    EditSourceLogoUrlChanged event,
+    Emitter<EditSourceState> emit,
+  ) {
+    // Update state when the logo URL input changes.
+    emit(
+      state.copyWith(logoUrl: event.logoUrl, status: EditSourceStatus.initial),
+    );
+  }
+
   void _onSourceTypeChanged(
     EditSourceTypeChanged event,
     Emitter<EditSourceState> emit,
@@ -130,11 +142,13 @@ class EditSourceBloc extends Bloc<EditSourceEvent, EditSourceState> {
     EditSourceSavedAsDraft event,
     Emitter<EditSourceState> emit,
   ) async {
+    // Log: Attempting to save source as draft with state: state
     emit(state.copyWith(status: EditSourceStatus.submitting));
     try {
       final originalSource = await _sourcesRepository.read(id: state.sourceId);
       final updatedSource = originalSource.copyWith(
         name: state.name,
+        logoUrl: state.logoUrl,
         description: state.description,
         url: state.url,
         sourceType: state.sourceType,
@@ -148,16 +162,19 @@ class EditSourceBloc extends Bloc<EditSourceEvent, EditSourceState> {
         id: state.sourceId,
         item: updatedSource,
       );
+      // Log: Successfully saved source as draft with id: state.sourceId
       emit(
         state.copyWith(
           status: EditSourceStatus.success,
           updatedSource: updatedSource,
         ),
       );
     } on HttpException catch (e) {
+      // Log: Failed to save source as draft. Error: e
       emit(state.copyWith(status: EditSourceStatus.failure, exception: e));
     } catch (e) {
       emit(
+        // Log: An unexpected error occurred while saving source as draft. Error: e
         state.copyWith(
           status: EditSourceStatus.failure,
           exception: UnknownException('An unexpected error occurred: $e'),
@@ -171,11 +188,13 @@ class EditSourceBloc extends Bloc<EditSourceEvent, EditSourceState> {
     EditSourcePublished event,
     Emitter<EditSourceState> emit,
   ) async {
+    // Log: Attempting to publish source with state: state
     emit(state.copyWith(status: EditSourceStatus.submitting));
     try {
       final originalSource = await _sourcesRepository.read(id: state.sourceId);
       final updatedSource = originalSource.copyWith(
         name: state.name,
+        logoUrl: state.logoUrl,
         description: state.description,
         url: state.url,
         sourceType: state.sourceType,
@@ -189,16 +208,19 @@ class EditSourceBloc extends Bloc<EditSourceEvent, EditSourceState> {
         id: state.sourceId,
         item: updatedSource,
       );
+      // Log: Successfully published source with id: state.sourceId
       emit(
         state.copyWith(
           status: EditSourceStatus.success,
           updatedSource: updatedSource,
         ),
       );
     } on HttpException catch (e) {
+      // Log: Failed to publish source. Error: e
       emit(state.copyWith(status: EditSourceStatus.failure, exception: e));
     } catch (e) {
       emit(
+        // Log: An unexpected error occurred while publishing source. Error: e
         state.copyWith(
           status: EditSourceStatus.failure,
           exception: UnknownException('An unexpected error occurred: $e'),