Allow entire app config to be shared as link (see https://github.com/ImranR98/apps.obtainium.imranr.dev/issues/5)

lib/main.dart

@@ -7,7 +7,6 @@ import 'package:obtainium/providers/apps_provider.dart';
 import 'package:obtainium/providers/logs_provider.dart';
 import 'package:obtainium/providers/notifications_provider.dart';
 import 'package:obtainium/providers/settings_provider.dart';
-import 'package:obtainium/providers/source_provider.dart';
 import 'package:permission_handler/permission_handler.dart';
 import 'package:provider/provider.dart';
 import 'package:dynamic_color/dynamic_color.dart';
@@ -174,20 +173,7 @@ class _ObtainiumState extends State<Obtainium> {
         // If this is the first run, ask for notification permissions and add Obtainium to the Apps list
         Permission.notification.request();
         if (!fdroid) {
-          appsProvider.saveApps([
-            App(
-                obtainiumId,
-                'https://github.com/ImranR98/Obtainium',
-                'ImranR98',
-                'Obtainium',
-                currentReleaseTag,
-                currentReleaseTag,
-                [],
-                0,
-                {'includePrereleases': true},
-                null,
-                false)
-          ], onlyIfExists: false);
+          appsProvider.saveApps([obtainiumApp], onlyIfExists: false);
         }
       }
       if (!supportedLocales

lib/pages/apps.dart

@@ -1,3 +1,5 @@
+import 'dart:convert';
+
 import 'package:easy_localization/easy_localization.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
@@ -871,20 +873,44 @@ class AppsPageState extends State<AppsPage> {
                         onPressed: () {
                           String urls = '';
                           for (var a in selectedApps) {
-                            urls += 'obtainium://add/${a.url}\n';
+                            urls += '${a.url}\n';
                           }
                           urls = urls.substring(0, urls.length - 1);
                           Share.share(urls,
-                              subject: tr('selectedAppURLsFromObtainium'));
+                              subject:
+                                  '${tr('obtainium')} - ${tr('appsString')}');
                           Navigator.of(context).pop();
                         },
                         tooltip: tr('shareSelectedAppURLs'),
-                        icon: const Icon(Icons.share),
+                        icon: const Icon(Icons.share_rounded),
                       ),
                       IconButton(
-                        onPressed: resetSelectedAppsInstallStatuses,
-                        tooltip: tr('resetInstallStatus'),
-                        icon: const Icon(Icons.restore_page_outlined),
+                        onPressed: selectedAppIds.isEmpty
+                            ? null
+                            : () {
+                                String urls =
+                                    '<p>${tr('customLinkMessage')}:</p>\n\n<ul>\n';
+                                for (var a in selectedApps) {
+                                  urls +=
+                                      '    <li><a href="obtainium://app/${Uri.encodeComponent(jsonEncode({
+                                        'id': a.id,
+                                        'url': a.url,
+                                        'author': a.author,
+                                        'name': a.name,
+                                        'preferredApkIndex':
+                                            a.preferredApkIndex,
+                                        'additionalSettings':
+                                            jsonEncode(a.additionalSettings)
+                                      }))}">${a.name}</a></li>\n';
+                                }
+                                urls +=
+                                    '</ul>\n\n<p><a href="${obtainiumApp.url}">${tr('about')}</a></p>';
+                                Share.share(urls,
+                                    subject:
+                                        '${tr('obtainium')} - ${tr('appsString')}');
+                              },
+                        tooltip: tr('shareAppConfigLinks'),
+                        icon: const Icon(Icons.ios_share),
                       ),
                     ]),
               ),

lib/providers/apps_provider.dart

@@ -404,7 +404,7 @@ class AppsProvider with ChangeNotifier {
       .isNotEmpty;
 
   Future<bool> canInstallSilently(App app) async {
-    if (app.id == obtainiumId) {
+    if (app.id == obtainiumApp.id) {
       return false;
     }
     if (!settingsProvider.enableBackgroundUpdates) {
@@ -428,7 +428,7 @@ class AppsProvider with ChangeNotifier {
     } catch (e) {
       // Probably not installed - ignore
     }
-    if (installerPackageName != obtainiumId) {
+    if (installerPackageName != obtainiumApp.id) {
       // If we did not install the app (or it isn't installed), silent install is not possible
       return false;
     }
@@ -673,7 +673,7 @@ class AppsProvider with ChangeNotifier {
 
     // Move Obtainium to the end of the line (let all other apps update first)
     appsToInstall =
-        moveStrToEnd(appsToInstall, obtainiumId, strB: obtainiumTempId);
+        moveStrToEnd(appsToInstall, obtainiumApp.id, strB: obtainiumTempId);
 
     Future<void> updateFn(String id, {bool skipInstalls = false}) async {
       try {
@@ -1676,7 +1676,8 @@ Future<void> bgUpdateCheck(String taskId, Map<String, dynamic>? params) async {
     }
     if (toInstall.isNotEmpty) {
       logs.add('BG install task: Started (${toInstall.length}).');
-      var tempObtArr = toInstall.where((element) => element.key == obtainiumId);
+      var tempObtArr =
+          toInstall.where((element) => element.key == obtainiumApp.id);
       if (tempObtArr.isNotEmpty) {
         // Move obtainium to the end of the list as it must always install last
         var obt = tempObtArr.first;

lib/providers/settings_provider.dart

@@ -15,7 +15,22 @@ import 'package:shared_preferences/shared_preferences.dart';
 import 'package:shared_storage/shared_storage.dart' as saf;
 
 String obtainiumTempId = 'imranr98_obtainium_${GitHub().hosts[0]}';
-String obtainiumId = 'dev.imranr.obtainium';
+
+App obtainiumApp = App(
+    'dev.imranr.obtainium',
+    'https://github.com/ImranR98/Obtainium',
+    'ImranR98',
+    'Obtainium',
+    currentReleaseTag,
+    currentReleaseTag,
+    [],
+    0,
+    {
+      'includePrereleases': true,
+      'versionDetection': 'standardVersionDetection'
+    },
+    null,
+    false);
 
 enum InstallMethodSettings { normal, shizuku, root }
 

lib/providers/source_provider.dart

@@ -276,9 +276,10 @@ class App {
         json['installedVersion'] == null
             ? null
             : json['installedVersion'] as String,
-        json['latestVersion'] as String,
-        assumed2DlistToStringMapList(jsonDecode(json['apkUrls'])),
-        json['preferredApkIndex'] as int,
+        (json['latestVersion'] ?? tr('unknown')) as String,
+        assumed2DlistToStringMapList(jsonDecode(
+            (json['apkUrls'] ?? '[["placeholder", "placeholder"]]'))),
+        (json['preferredApkIndex'] ?? -1) as int,
         jsonDecode(json['additionalSettings']) as Map<String, dynamic>,
         json['lastUpdateCheck'] == null
             ? null