No need update check for web

lib/models/app_version.dart

@@ -2,13 +2,14 @@
 /// `AppUpdateService` fetches the most recent entry and compares it against the
 /// running application's build number.
 class AppVersion {
-  /// Incrementing integer that matches the Android `versionCode`.
-  final int versionCode;
+  /// Version string, e.g. `1.2.3` or `2026.03.12`.  Stored as text in
+  /// the database so semantic versions are allowed.
+  final String versionCode;
 
   /// If the device is running a build number that is *strictly less* than this
   /// value the update is considered "forced" and the user cannot continue
-  /// using the existing install.
-  final int minVersionRequired;
+  /// using the existing install.  Also a string.
+  final String minVersionRequired;
 
   /// A publicly‑accessible URL pointing at an APK stored in Supabase Storage.
   final String downloadUrl;
@@ -25,8 +26,8 @@ class AppVersion {
 
   factory AppVersion.fromMap(Map<String, dynamic> map) {
     return AppVersion(
-      versionCode: map['version_code'] as int,
-      minVersionRequired: map['min_version_required'] as int,
+      versionCode: map['version_code']?.toString() ?? '',
+      minVersionRequired: map['min_version_required']?.toString() ?? '',
       downloadUrl: map['download_url'] as String,
       releaseNotes: map['release_notes'] as String? ?? '',
     );
@@ -40,8 +41,9 @@ class AppUpdateInfo {
   /// table was empty (should not happen in normal operation).
   final AppVersion? latestVersion;
 
-  /// Current build number as reported by ``package_info_plus``.
-  final int currentBuildNumber;
+  /// Current build number / version string.  May be empty on non-Android
+  /// platforms since checkForUpdate is skipped there.
+  final String currentBuildNumber;
 
   /// ``true`` when ``currentBuildNumber < latestVersion.versionCode``.
   final bool isUpdateAvailable;

lib/screens/admin/app_update_screen.dart

@@ -3,6 +3,7 @@ import 'package:flutter/foundation.dart';
 
 import 'package:flutter/material.dart';
 import 'package:file_picker/file_picker.dart';
+import 'package:pub_semver/pub_semver.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:supabase_flutter/supabase_flutter.dart';
 
@@ -41,16 +42,40 @@ class _AppUpdateScreenState extends ConsumerState<AppUpdateScreen> {
   Future<void> _loadCurrent() async {
     try {
       final client = Supabase.instance.client;
-      final data = await client
-          .from('app_versions')
-          .select()
-          .order('version_code', ascending: false)
-          .limit(1)
-          .maybeSingle();
-      if (data is Map<String, dynamic>) {
-        _versionController.text = data['version_code']?.toString() ?? '';
-        _minController.text = data['min_version_required']?.toString() ?? '';
-        _notesController.text = data['release_notes'] ?? '';
+      final rows = await client.from('app_versions').select().maybeSingle();
+      // when using text versions we can't rely on server-side ordering; instead
+      // parse locally and choose the greatest semantic version.
+      if (rows is List) {
+        final rowList = rows as List?;
+        Version? best;
+        Map<String, dynamic>? bestRow;
+        if (rowList != null) {
+          for (final r in rowList) {
+            if (r is Map<String, dynamic>) {
+              final v = r['version_code']?.toString() ?? '';
+              Version parsed;
+              try {
+                parsed = Version.parse(v);
+              } catch (_) {
+                continue;
+              }
+              if (best == null || parsed > best) {
+                best = parsed;
+                bestRow = r;
+              }
+            }
+          }
+        }
+        if (bestRow != null) {
+          _versionController.text = bestRow['version_code']?.toString() ?? '';
+          _minController.text =
+              bestRow['min_version_required']?.toString() ?? '';
+          _notesController.text = bestRow['release_notes'] ?? '';
+        }
+      } else if (rows is Map<String, dynamic>) {
+        _versionController.text = rows['version_code']?.toString() ?? '';
+        _minController.text = rows['min_version_required']?.toString() ?? '';
+        _notesController.text = rows['release_notes'] ?? '';
       }
     } catch (_) {}
   }
@@ -169,10 +194,11 @@ class _AppUpdateScreenState extends ConsumerState<AppUpdateScreen> {
       } else {
         url = '';
       }
-      if (url.isEmpty)
+      if (url.isEmpty) {
         throw Exception(
           'could not obtain public url, check bucket CORS and policies',
         );
+      }
       _logs.add('Public URL: $url');
       // upsert new version in a single statement
       await client.from('app_versions').upsert({

lib/services/app_update_service.dart

@@ -3,6 +3,7 @@ import 'dart:io';
 
 import 'package:ota_update/ota_update.dart';
 import 'package:package_info_plus/package_info_plus.dart';
+import 'package:pub_semver/pub_semver.dart';
 import 'package:permission_handler/permission_handler.dart';
 import 'package:supabase_flutter/supabase_flutter.dart';
 
@@ -48,26 +49,48 @@ class AppUpdateService {
   /// (network down, no supabase instance) are simply re‑thrown; the caller can
   /// decide whether to ignore them or surface them to the user.
   Future<AppUpdateInfo> checkForUpdate() async {
-    final pkg = await PackageInfo.fromPlatform();
-    final currentBuild = int.tryParse(pkg.buildNumber) ?? 0;
-
-    final serverVersion = await _fetchLatestVersion();
-
-    if (serverVersion == null) {
-      // table empty – nothing to do
+    // only run on Android devices; web and other platforms skip
+    if (!Platform.isAndroid) {
       return AppUpdateInfo(
-        currentBuildNumber: currentBuild,
+        currentBuildNumber: '',
         latestVersion: null,
         isUpdateAvailable: false,
         isForceUpdate: false,
       );
     }
 
-    final available = currentBuild < serverVersion.versionCode;
-    final force = currentBuild < serverVersion.minVersionRequired;
+    final pkg = await PackageInfo.fromPlatform();
+    final currentVersion = pkg.buildNumber.trim();
+
+    final serverVersion = await _fetchLatestVersion();
+
+    if (serverVersion == null) {
+      return AppUpdateInfo(
+        currentBuildNumber: currentVersion,
+        latestVersion: null,
+        isUpdateAvailable: false,
+        isForceUpdate: false,
+      );
+    }
+
+    // compare using semantic versioning where possible
+    Version safeParse(String s) {
+      try {
+        return Version.parse(s);
+      } catch (_) {
+        return Version(0, 0, 0);
+      }
+    }
+
+    final vCurrent = safeParse(currentVersion);
+    final vLatest = safeParse(serverVersion.versionCode);
+    final vMin = safeParse(serverVersion.minVersionRequired);
+
+    final available = vCurrent < vLatest;
+    final force = vCurrent < vMin;
 
     return AppUpdateInfo(
-      currentBuildNumber: currentBuild,
+      currentBuildNumber: currentVersion,
       latestVersion: serverVersion,
       isUpdateAvailable: available,
       isForceUpdate: force,

pubspec.lock

@@ -1438,7 +1438,7 @@ packages:
     source: hosted
     version: "2.1.0"
   pub_semver:
-    dependency: transitive
+    dependency: "direct main"
     description:
       name: pub_semver
       sha256: "5bfcf68ca79ef689f8990d1160781b4bad40a3bd5e5218ad4076ddb7f4081585"

pubspec.yaml

@@ -52,6 +52,7 @@ dependencies:
   flutter_image_compress: ^2.4.0
   dio: ^5.1.2
   package_info_plus: ^9.0.0
+  pub_semver: ^2.1.1
   ota_update: ^7.1.0
 
 dev_dependencies: