feat: Rework error handling, upgrade dio, fixed bugs

- Fix grey screen bug when adding labels from documnet upload
- Add more permission checks to conditionally show widgets

lib/features/document_details/cubit/document_details_cubit.dart

@@ -70,13 +70,12 @@ class DocumentDetailsCubit extends Cubit<DocumentDetailsState> {
 
   Future<void> loadFullContent() async {
     final doc = await _api.find(state.document.id);
-    if (doc == null) {
-      return;
-    }
-    emit(state.copyWith(
-      isFullContentLoaded: true,
-      fullContent: doc.content,
-    ));
+    emit(
+      state.copyWith(
+        isFullContentLoaded: true,
+        fullContent: doc.content,
+      ),
+    );
   }
 
   Future<void> assignAsn(
@@ -99,13 +98,12 @@ class DocumentDetailsCubit extends Cubit<DocumentDetailsState> {
 
   Future<ResultType> openDocumentInSystemViewer() async {
     final cacheDir = await FileService.temporaryDirectory;
-    //TODO: Why is this cleared here?
-    await FileService.clearDirectoryContent(PaperlessDirectoryType.temporary);
     if (state.metaData == null) {
       await loadMetaData();
     }
     final desc = FileDescription.fromPath(
-        state.metaData!.mediaFilename.replaceAll("/", " "));
+      state.metaData!.mediaFilename.replaceAll("/", " "),
+    );
 
     final fileName = "${desc.filename}.pdf";
     final file = File("${cacheDir.path}/$fileName");

lib/features/document_details/view/pages/document_details_page.dart

@@ -287,8 +287,7 @@ class _DocumentDetailsPageState extends State<DocumentDetailsPage> {
 
   Widget _buildEditButton() {
     bool canEdit = context.watchInternetConnection &&
-        LocalUserAccount.current.paperlessUser
-            .hasPermission(PermissionAction.change, PermissionTarget.document);
+        LocalUserAccount.current.paperlessUser.canEditDocuments;
     if (!canEdit) {
       return const SizedBox.shrink();
     }
@@ -319,8 +318,7 @@ class _DocumentDetailsPageState extends State<DocumentDetailsPage> {
               final isConnected = connectivityState.isConnected;
 
               final canDelete = isConnected &&
-                  LocalUserAccount.current.paperlessUser.hasPermission(
-                      PermissionAction.delete, PermissionTarget.document);
+                  LocalUserAccount.current.paperlessUser.canDeleteDocuments;
               return Row(
                 mainAxisAlignment: MainAxisAlignment.start,
                 children: [
@@ -430,7 +428,7 @@ class _DocumentDetailsPageState extends State<DocumentDetailsPage> {
       try {
         await context.read<DocumentDetailsCubit>().delete(document);
         showSnackBar(context, S.of(context)!.documentSuccessfullyDeleted);
-      } on PaperlessServerException catch (error, stackTrace) {
+      } on PaperlessApiException catch (error, stackTrace) {
         showErrorMessage(context, error, stackTrace);
       } finally {
         // Document deleted => go back to primary route

lib/features/document_details/view/widgets/archive_serial_number_field.dart

@@ -4,7 +4,6 @@ import 'package:flutter_bloc/flutter_bloc.dart';
 import 'package:paperless_api/paperless_api.dart';
 import 'package:paperless_mobile/core/bloc/connectivity_cubit.dart';
 import 'package:paperless_mobile/core/database/tables/local_user_account.dart';
-import 'package:paperless_mobile/core/type/types.dart';
 import 'package:paperless_mobile/extensions/flutter_extensions.dart';
 import 'package:paperless_mobile/features/document_details/cubit/document_details_cubit.dart';
 import 'package:paperless_mobile/generated/l10n/app_localizations.dart';
@@ -48,10 +47,7 @@ class _ArchiveSerialNumberFieldState extends State<ArchiveSerialNumberField> {
   @override
   Widget build(BuildContext context) {
     final userCanEditDocument =
-        LocalUserAccount.current.paperlessUser.hasPermission(
-      PermissionAction.change,
-      PermissionTarget.document,
-    );
+        LocalUserAccount.current.paperlessUser.canEditDocuments;
     return BlocListener<DocumentDetailsCubit, DocumentDetailsState>(
       listenWhen: (previous, current) =>
           previous.document.archiveSerialNumber !=
@@ -124,12 +120,14 @@ class _ArchiveSerialNumberFieldState extends State<ArchiveSerialNumberField> {
         .read<DocumentDetailsCubit>()
         .assignAsn(widget.document, asn: asn)
         .then((value) => _onAsnUpdated())
-        .onError<PaperlessServerException>(
+        .onError<PaperlessApiException>(
           (error, stackTrace) => showErrorMessage(context, error, stackTrace),
         )
-        .onError<PaperlessValidationErrors>(
-          (error, stackTrace) => setState(() => _errors = error),
-        );
+        .onError<PaperlessFormValidationException>(
+      (error, stackTrace) {
+        setState(() => _errors = error.validationMessages);
+      },
+    );
     FocusScope.of(context).unfocus();
   }
 
@@ -141,9 +139,10 @@ class _ArchiveSerialNumberFieldState extends State<ArchiveSerialNumberField> {
           autoAssign: true,
         )
         .then((value) => _onAsnUpdated())
-        .onError<PaperlessServerException>(
+        .onError<PaperlessApiException>(
           (error, stackTrace) => showErrorMessage(context, error, stackTrace),
-        );
+        )
+        .catchError((error) => showGenericError(context, error));
   }
 
   void _onAsnUpdated() {

lib/features/document_details/view/widgets/document_download_button.dart

@@ -95,7 +95,7 @@ class _DocumentDownloadButtonState extends State<DocumentDownloadButton> {
             locale: globalSettings.preferredLocaleSubtag,
           );
       // showSnackBar(context, S.of(context)!.documentSuccessfullyDownloaded);
-    } on PaperlessServerException catch (error, stackTrace) {
+    } on PaperlessApiException catch (error, stackTrace) {
       showErrorMessage(context, error, stackTrace);
     } catch (error) {
       showGenericError(context, error);

lib/features/document_details/view/widgets/document_overview_widget.dart

@@ -1,6 +1,7 @@
 import 'package:flutter/material.dart';
 import 'package:intl/intl.dart';
 import 'package:paperless_api/paperless_api.dart';
+import 'package:paperless_mobile/core/database/tables/local_user_account.dart';
 import 'package:paperless_mobile/core/widgets/highlighted_text.dart';
 import 'package:paperless_mobile/extensions/flutter_extensions.dart';
 import 'package:paperless_mobile/features/document_details/view/widgets/details_item.dart';
@@ -45,38 +46,35 @@ class DocumentOverviewWidget extends StatelessWidget {
             context: context,
             label: S.of(context)!.createdAt,
           ).paddedOnly(bottom: itemSpacing),
-          Visibility(
-            visible: document.documentType != null,
-            child: DetailsItem(
+          if (document.documentType != null &&
+              LocalUserAccount.current.paperlessUser.canViewDocumentTypes)
+            DetailsItem(
               label: S.of(context)!.documentType,
               content: LabelText<DocumentType>(
                 style: Theme.of(context).textTheme.bodyLarge,
                 label: availableDocumentTypes[document.documentType],
               ),
             ).paddedOnly(bottom: itemSpacing),
-          ),
-          Visibility(
-            visible: document.correspondent != null,
-            child: DetailsItem(
+          if (document.correspondent != null &&
+              LocalUserAccount.current.paperlessUser.canViewCorrespondents)
+            DetailsItem(
               label: S.of(context)!.correspondent,
               content: LabelText<Correspondent>(
                 style: Theme.of(context).textTheme.bodyLarge,
                 label: availableCorrespondents[document.correspondent],
               ),
             ).paddedOnly(bottom: itemSpacing),
-          ),
-          Visibility(
-            visible: document.storagePath != null,
-            child: DetailsItem(
+          if (document.storagePath != null &&
+              LocalUserAccount.current.paperlessUser.canViewStoragePaths)
+            DetailsItem(
               label: S.of(context)!.storagePath,
               content: LabelText<StoragePath>(
                 label: availableStoragePaths[document.storagePath],
               ),
             ).paddedOnly(bottom: itemSpacing),
-          ),
-          Visibility(
-            visible: document.tags.isNotEmpty,
-            child: DetailsItem(
+          if (document.tags.isNotEmpty &&
+              LocalUserAccount.current.paperlessUser.canViewTags)
+            DetailsItem(
               label: S.of(context)!.tags,
               content: Padding(
                 padding: const EdgeInsets.only(top: 8.0),
@@ -86,7 +84,6 @@ class DocumentOverviewWidget extends StatelessWidget {
                 ),
               ),
             ).paddedOnly(bottom: itemSpacing),
-          ),
         ],
       ),
     );

lib/features/document_details/view/widgets/document_share_button.dart

@@ -90,7 +90,7 @@ class _DocumentShareButtonState extends State<DocumentShareButton> {
       await context.read<DocumentDetailsCubit>().shareDocument(
             shareOriginal: original,
           );
-    } on PaperlessServerException catch (error, stackTrace) {
+    } on PaperlessApiException catch (error, stackTrace) {
       showErrorMessage(context, error, stackTrace);
     } catch (error) {
       showGenericError(context, error);