WIP - Added document search, restructured navigation

lib/features/document_search/cubit/document_search_cubit.dart

@@ -1,29 +1,47 @@
-import 'package:bloc/bloc.dart';
-import 'package:equatable/equatable.dart';
+import 'package:collection/collection.dart';
 import 'package:hydrated_bloc/hydrated_bloc.dart';
 import 'package:paperless_api/paperless_api.dart';
-import 'package:paperless_api/src/modules/documents_api/paperless_documents_api.dart';
 import 'package:paperless_mobile/features/paged_document_view/documents_paging_mixin.dart';
 
 import 'document_search_state.dart';
 
 class DocumentSearchCubit extends HydratedCubit<DocumentSearchState>
     with DocumentsPagingMixin {
+  ////
   DocumentSearchCubit(this.api) : super(const DocumentSearchState());
 
   @override
   final PaperlessDocumentsApi api;
 
+  ///
+  /// Requests results based on [query] and adds [query] to the
+  /// search history, removing old occurrences and trimming the list to
+  /// the last 5 searches.
+  ///
   Future<void> updateResults(String query) async {
     await updateFilter(
       filter: state.filter.copyWith(query: TextQuery.titleAndContent(query)),
     );
-    emit(state.copyWith(searchHistory: [query, ...state.searchHistory]));
+    emit(
+      state.copyWith(
+        searchHistory: [
+          query,
+          ...state.searchHistory.where((element) => element != query)
+        ].take(5).toList(),
+      ),
+    );
   }
 
-  Future<void> updateSuggestions(String query) async {
-    final suggestions = await api.autocomplete(query);
-    emit(state.copyWith(suggestions: suggestions));
+  void removeHistoryEntry(String suggestion) {
+    emit(state.copyWith(
+      searchHistory: state.searchHistory
+          .whereNot((element) => element == suggestion)
+          .toList(),
+    ));
+  }
+
+  Future<List<String>> findSuggestions(String query) {
+    return api.autocomplete(query);
   }
 
   @override