fix: check if book file is not deleted before opening epub reader

lib/src/features/book_details/screens/book_details_screen.dart

@@ -1,3 +1,5 @@
+import 'dart:io';
+
 import 'package:cached_network_image/cached_network_image.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_ebook_app/src/features/common/data/notifiers/favorites/favorites_state_notifier.dart';
@@ -284,7 +286,7 @@ class _DownloadButton extends ConsumerWidget {
         }
         final book = books.firstWhere((element) => element['id'] == id);
         return TextButton(
-          onPressed: () => openBook(book['path'], context),
+          onPressed: () => openBook(book['path'], context, ref),
           child: Text(
             'Read Book'.toUpperCase(),
             style: TextStyle(
@@ -318,8 +320,23 @@ class _DownloadButton extends ConsumerWidget {
         ),
       );
 
-  Future<void> openBook(String path, BuildContext context) async {
-    MyRouter.pushPage(context, EpubScreen.fromPath(filePath: path));
+  Future<void> openBook(
+    String path,
+    BuildContext context,
+    WidgetRef ref,
+  ) async {
+    File bookFile = File(path);
+    if (bookFile.existsSync()) {
+      MyRouter.pushPage(context, EpubScreen.fromPath(filePath: path));
+    } else {
+      const snackBar = SnackBar(
+        content: Text(
+          'Could not find the book file. Please download it again.',
+        ),
+      );
+      ScaffoldMessenger.of(context).showSnackBar(snackBar);
+      ref.read(downloadsStateNotifierProvider.notifier).deleteBook(id);
+    }
   }
 }
 

lib/src/features/common/data/notifiers/downloads/downloads_state_notifier.dart

@@ -38,7 +38,7 @@ class DownloadsStateNotifier extends StateNotifier<DownloadsState> {
     await _repository.addBook(book, id);
   }
 
-  Future<void> deleteBook(Map<String, dynamic> book, id) async {
+  Future<void> deleteBook(String id) async {
     await _repository.deleteBook(id);
   }
 }

lib/src/features/downloads/screens/download_screen.dart

@@ -53,7 +53,7 @@ class _DownloadsScreenState extends ConsumerState<DownloadsScreen> {
                 onDismissed: (d) {
                   ref
                       .watch(downloadsStateNotifierProvider.notifier)
-                      .deleteBook(book, book['id']);
+                      .deleteBook(book['id']);
                 },
                 child: InkWell(
                   onTap: () async {

macos/Podfile

@@ -1,4 +1,4 @@
-platform :osx, '10.11'
+platform :osx, '10.14'
 
 # CocoaPods analytics sends network stats synchronously affecting flutter build latency.
 ENV['COCOAPODS_DISABLE_STATS'] = 'true'

macos/Podfile.lock

@@ -3,11 +3,13 @@ PODS:
   - FMDB (2.7.5):
     - FMDB/standard (= 2.7.5)
   - FMDB/standard (2.7.5)
-  - package_info_plus_macos (0.0.1):
+  - path_provider_foundation (0.0.1):
+    - Flutter
     - FlutterMacOS
-  - path_provider_macos (0.0.1):
+  - share_plus_macos (0.0.1):
     - FlutterMacOS
-  - shared_preferences_macos (0.0.1):
+  - shared_preferences_foundation (0.0.1):
+    - Flutter
     - FlutterMacOS
   - sqflite (0.0.2):
     - FlutterMacOS
@@ -17,9 +19,9 @@ PODS:
 
 DEPENDENCIES:
   - FlutterMacOS (from `Flutter/ephemeral`)
-  - package_info_plus_macos (from `Flutter/ephemeral/.symlinks/plugins/package_info_plus_macos/macos`)
-  - path_provider_macos (from `Flutter/ephemeral/.symlinks/plugins/path_provider_macos/macos`)
-  - shared_preferences_macos (from `Flutter/ephemeral/.symlinks/plugins/shared_preferences_macos/macos`)
+  - path_provider_foundation (from `Flutter/ephemeral/.symlinks/plugins/path_provider_foundation/darwin`)
+  - share_plus_macos (from `Flutter/ephemeral/.symlinks/plugins/share_plus_macos/macos`)
+  - shared_preferences_foundation (from `Flutter/ephemeral/.symlinks/plugins/shared_preferences_foundation/darwin`)
   - sqflite (from `Flutter/ephemeral/.symlinks/plugins/sqflite/macos`)
   - url_launcher_macos (from `Flutter/ephemeral/.symlinks/plugins/url_launcher_macos/macos`)
 
@@ -30,26 +32,26 @@ SPEC REPOS:
 EXTERNAL SOURCES:
   FlutterMacOS:
     :path: Flutter/ephemeral
-  package_info_plus_macos:
-    :path: Flutter/ephemeral/.symlinks/plugins/package_info_plus_macos/macos
-  path_provider_macos:
-    :path: Flutter/ephemeral/.symlinks/plugins/path_provider_macos/macos
-  shared_preferences_macos:
-    :path: Flutter/ephemeral/.symlinks/plugins/shared_preferences_macos/macos
+  path_provider_foundation:
+    :path: Flutter/ephemeral/.symlinks/plugins/path_provider_foundation/darwin
+  share_plus_macos:
+    :path: Flutter/ephemeral/.symlinks/plugins/share_plus_macos/macos
+  shared_preferences_foundation:
+    :path: Flutter/ephemeral/.symlinks/plugins/shared_preferences_foundation/darwin
   sqflite:
     :path: Flutter/ephemeral/.symlinks/plugins/sqflite/macos
   url_launcher_macos:
     :path: Flutter/ephemeral/.symlinks/plugins/url_launcher_macos/macos
 
 SPEC CHECKSUMS:
-  FlutterMacOS: ae6af50a8ea7d6103d888583d46bd8328a7e9811
+  FlutterMacOS: 8f6f14fa908a6fb3fba0cd85dbd81ec4b251fb24
   FMDB: 2ce00b547f966261cd18927a3ddb07cb6f3db82a
-  package_info_plus_macos: f010621b07802a241d96d01876d6705f15e77c1c
-  path_provider_macos: 160cab0d5461f0c0e02995469a98f24bdb9a3f1f
-  shared_preferences_macos: 480ce071d0666e37cef23fe6c702293a3d21799e
+  path_provider_foundation: c68054786f1b4f3343858c1e1d0caaded73f0be9
+  share_plus_macos: 853ee48e7dce06b633998ca0735d482dd671ade4
+  shared_preferences_foundation: 986fc17f3d3251412d18b0265f9c64113a8c2472
   sqflite: a5789cceda41d54d23f31d6de539d65bb14100ea
-  url_launcher_macos: 597e05b8e514239626bcf4a850fcf9ef5c856ec3
+  url_launcher_macos: 5335912b679c073563f29d89d33d10d459f95451
 
-PODFILE CHECKSUM: 6eac6b3292e5142cfc23bdeb71848a40ec51c14c
+PODFILE CHECKSUM: 353c8bcc5d5b0994e508d035b5431cfe18c1dea7
 
 COCOAPODS: 1.11.3

macos/Runner.xcodeproj/project.pbxproj

@@ -3,7 +3,7 @@
 	archiveVersion = 1;
 	classes = {
 	};
-	objectVersion = 51;
+	objectVersion = 54;
 	objects = {
 
 /* Begin PBXAggregateTarget section */
@@ -256,6 +256,7 @@
 /* Begin PBXShellScriptBuildPhase section */
 		3399D490228B24CF009A79C7 /* ShellScript */ = {
 			isa = PBXShellScriptBuildPhase;
+			alwaysOutOfDate = 1;
 			buildActionMask = 2147483647;
 			files = (
 			);
@@ -404,7 +405,7 @@
 				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
 				GCC_WARN_UNUSED_FUNCTION = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
-				MACOSX_DEPLOYMENT_TARGET = 10.11;
+				MACOSX_DEPLOYMENT_TARGET = 10.14;
 				MTL_ENABLE_DEBUG_INFO = NO;
 				SDKROOT = macosx;
 				SWIFT_COMPILATION_MODE = wholemodule;
@@ -483,7 +484,7 @@
 				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
 				GCC_WARN_UNUSED_FUNCTION = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
-				MACOSX_DEPLOYMENT_TARGET = 10.11;
+				MACOSX_DEPLOYMENT_TARGET = 10.14;
 				MTL_ENABLE_DEBUG_INFO = YES;
 				ONLY_ACTIVE_ARCH = YES;
 				SDKROOT = macosx;
@@ -530,7 +531,7 @@
 				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
 				GCC_WARN_UNUSED_FUNCTION = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
-				MACOSX_DEPLOYMENT_TARGET = 10.11;
+				MACOSX_DEPLOYMENT_TARGET = 10.14;
 				MTL_ENABLE_DEBUG_INFO = NO;
 				SDKROOT = macosx;
 				SWIFT_COMPILATION_MODE = wholemodule;