From 387560fad7616c5eb1d2fc770bb1e7f372ec47de Mon Sep 17 00:00:00 2001
From: Thomas Fransolet <tfransolet@thelis.be>
Date: Fri, 26 Jan 2024 16:20:17 +0100
Subject: [PATCH] Added try catch file access

---
 lib/Components/cached_custom_resource.dart | 19 ++++++++++++-------
 lib/Helpers/ImageCustomProvider.dart       | 22 ++++++++++++++--------
 lib/Screens/PDF/pdf_view.dart              | 19 ++++++++++++-------
 3 files changed, 38 insertions(+), 22 deletions(-)

diff --git a/lib/Components/cached_custom_resource.dart b/lib/Components/cached_custom_resource.dart
index 3bbff05..39ce796 100644
--- a/lib/Components/cached_custom_resource.dart
+++ b/lib/Components/cached_custom_resource.dart
@@ -102,14 +102,19 @@ class CachedCustomResource extends StatelessWidget {
   }
 
   Future<File?> _checkIfLocalResourceExists(TabletAppContext tabletAppContext) async {
-    Directory? appDocumentsDirectory = await getDownloadsDirectory();
-    String localPath = appDocumentsDirectory!.path;
-    Directory configurationDirectory = Directory('$localPath/${tabletAppContext.configuration!.id}');
-    List<FileSystemEntity> fileList = configurationDirectory.listSync();
+    try {
+      Directory? appDocumentsDirectory = await getDownloadsDirectory();
+      String localPath = appDocumentsDirectory!.path;
+      Directory configurationDirectory = Directory('$localPath/${tabletAppContext.configuration!.id}');
+      List<FileSystemEntity> fileList = configurationDirectory.listSync();
 
-    if(fileList.any((fileL) => fileL.uri.pathSegments.last.contains(resourceDTO.id!))) {
-      File file = File(fileList.firstWhere((fileL) => fileL.uri.pathSegments.last.contains(resourceDTO.id!)).path);
-      return file;
+      if(fileList.any((fileL) => fileL.uri.pathSegments.last.contains(resourceDTO.id!))) {
+        File file = File(fileList.firstWhere((fileL) => fileL.uri.pathSegments.last.contains(resourceDTO.id!)).path);
+        return file;
+      }
+    } catch(e) {
+      print("ERROR _checkIfLocalResourceExists CachedCustomResource");
+      print(e);
     }
 
     return null;
diff --git a/lib/Helpers/ImageCustomProvider.dart b/lib/Helpers/ImageCustomProvider.dart
index 58ac3fb..21e287a 100644
--- a/lib/Helpers/ImageCustomProvider.dart
+++ b/lib/Helpers/ImageCustomProvider.dart
@@ -8,19 +8,25 @@ import 'package:tablet_app/app_context.dart';
 class ImageCustomProvider {
   static ImageProvider<Object> getImageProvider(AppContext appContext, String imageId, String imageSource) {
     TabletAppContext tabletAppContext = appContext.getContext();
-    if(appContext.getContext().localPath != null && tabletAppContext.configuration != null) {
-      Directory configurationDirectory = Directory('${tabletAppContext.localPath!}/${tabletAppContext.configuration!.id!}');
-      List<FileSystemEntity> fileList = configurationDirectory.listSync();
+    try {
+      if(appContext.getContext().localPath != null && tabletAppContext.configuration != null) {
+        Directory configurationDirectory = Directory('${tabletAppContext.localPath!}/${tabletAppContext.configuration!.id!}');
+        List<FileSystemEntity> fileList = configurationDirectory.listSync();
 
-      print(fileList);
+        print(fileList);
 
-      if (fileList.isNotEmpty) {
-        File file = File(fileList.first.path);
-        print("FILE EXISTT");
-        return FileImage(file);
+        if (fileList.isNotEmpty) {
+          File file = File(fileList.first.path);
+          print("FILE EXISTT");
+          return FileImage(file);
+        }
       }
+    } catch(e) {
+      print("Error getImageProvider");
+      print(e.toString());
     }
 
+
     // If localpath not found or file missing
     print("MISSINGG FILE");
     return CachedNetworkImageProvider(imageSource);
diff --git a/lib/Screens/PDF/pdf_view.dart b/lib/Screens/PDF/pdf_view.dart
index 7e68715..2c4130a 100644
--- a/lib/Screens/PDF/pdf_view.dart
+++ b/lib/Screens/PDF/pdf_view.dart
@@ -165,14 +165,19 @@ class _PDFViewWidget extends State<PDFViewWidget> {
 } //_webView
 
 Future<File?> _checkIfLocalResourceExists(TabletAppContext tabletAppContext, String resourceId) async {
-  Directory? appDocumentsDirectory = await getDownloadsDirectory();
-  String localPath = appDocumentsDirectory!.path;
-  Directory configurationDirectory = Directory('$localPath/${tabletAppContext.configuration!.id}');
-  List<FileSystemEntity> fileList = configurationDirectory.listSync();
+  try {
+    Directory? appDocumentsDirectory = await getDownloadsDirectory();
+    String localPath = appDocumentsDirectory!.path;
+    Directory configurationDirectory = Directory('$localPath/${tabletAppContext.configuration!.id}');
+    List<FileSystemEntity> fileList = configurationDirectory.listSync();
 
-  if(fileList.any((fileL) => fileL.uri.pathSegments.last.contains(resourceId))) {
-    File file = File(fileList.firstWhere((fileL) => fileL.uri.pathSegments.last.contains(resourceId)).path);
-    return file;
+    if(fileList.any((fileL) => fileL.uri.pathSegments.last.contains(resourceId))) {
+      File file = File(fileList.firstWhere((fileL) => fileL.uri.pathSegments.last.contains(resourceId)).path);
+      return file;
+    }
+  } catch (e) {
+    print("ERROR _checkIfLocalResourceExists PDF");
+    print(e);
   }
 
   return null;