feat: ABI-aware auto-update — pick correct per-ABI APK from Gitea

- Android: expose getSupportedAbis/getPrimaryAbi via rulegel/device channel (Build.SUPPORTED_ABIS)
- AppUpdateInfo: add apkArm64Url, apkArmv7Url, apkX86_64Url fields + apkUrlForAbi() selector
- UpdateService: parse per-ABI APK assets by filename pattern, async assetUrlForCurrentPlatform
- app.dart + settings_screen.dart: await new async URL resolver
- Bump version to 2.3.8+48

android/app/src/main/kotlin/com/example/gel_rule_app/MainActivity.kt

@@ -54,6 +54,8 @@ class MainActivity : FlutterActivity() {
                             setPreferredRefreshRate(hz.toFloat())
                             result.success(null)
                         }
+                        "getSupportedAbis" -> result.success(Build.SUPPORTED_ABIS.toList())
+                        "getPrimaryAbi" -> result.success(Build.SUPPORTED_ABIS.firstOrNull() ?: "armeabi-v7a")
                         else -> result.notImplemented()
                     }
                 } catch (error: Throwable) {

lib/app/app.dart

@@ -149,7 +149,7 @@ class _AppOverlayState extends ConsumerState<_AppOverlay> {
 
   Future<void> _downloadUpdate(AppUpdateInfo info) async {
     final updateService = ref.read(updateServiceProvider);
-    final assetUrl = updateService.assetUrlForCurrentPlatform(info);
+    final assetUrl = await updateService.assetUrlForCurrentPlatform(info);
     if (assetUrl == null) {
       final url = Uri.tryParse(info.htmlUrl);
       if (url != null) {

lib/app/changelog.dart

@@ -1,4 +1,14 @@
 const lunarisChangelog = [
+  LunarisChange(
+    version: '2.3.8',
+    title: 'ABI-Aware Auto-Update — правильный APK для вашего процессора',
+    bullets: [
+      'Определение архитектуры Android: приложение читает Build.SUPPORTED_ABIS (arm64-v8a, armeabi-v7a, x86_64) через нативный канал.',
+      'Точный APK из Gitea: при обновлении скачивается per-ABI APK (app-arm64-v8a-release.apk и т.д.), а не один общий файл.',
+      'Fallback: нет per-ABI APK → универсальный APK → страница релиза в браузере.',
+      'Кеш ABI: архитектура определяется один раз за сеанс.',
+    ],
+  ),
   LunarisChange(
     version: '2.3.7',
     title: 'Lazy Media Dimensions for Pawchive & Unknown-Size Providers',

lib/backend/models/app_update_info.dart

@@ -7,6 +7,9 @@ class AppUpdateInfo {
     required this.htmlUrl,
     required this.publishedAt,
     this.apkUrl,
+    this.apkArm64Url,
+    this.apkArmv7Url,
+    this.apkX86_64Url,
     this.windowsInstallerUrl,
     this.portableZipUrl,
     this.linuxTarGzUrl,
@@ -18,13 +21,36 @@ class AppUpdateInfo {
   final String body;
   final String htmlUrl;
   final DateTime? publishedAt;
+
+  /// Generic APK (fat / universal build). Used as a fallback.
   final String? apkUrl;
+
+  /// Per-ABI APKs produced by `flutter build apk --split-per-abi`.
+  final String? apkArm64Url;   // app-arm64-v8a-release.apk
+  final String? apkArmv7Url;   // app-armeabi-v7a-release.apk
+  final String? apkX86_64Url;  // app-x86_64-release.apk
+
   final String? windowsInstallerUrl;
   final String? portableZipUrl;
   final String? linuxTarGzUrl;
 
+  /// Returns the best APK URL for [abi], falling back to the generic APK.
+  String? apkUrlForAbi(String abi) {
+    if (abi.contains('arm64') || abi == 'arm64-v8a') {
+      return apkArm64Url ?? apkUrl;
+    }
+    if (abi.contains('x86_64')) {
+      return apkX86_64Url ?? apkUrl;
+    }
+    // armeabi-v7a and everything else
+    return apkArmv7Url ?? apkArm64Url ?? apkUrl;
+  }
+
   bool get hasAssets =>
       apkUrl != null ||
+      apkArm64Url != null ||
+      apkArmv7Url != null ||
+      apkX86_64Url != null ||
       windowsInstallerUrl != null ||
       portableZipUrl != null ||
       linuxTarGzUrl != null;

lib/backend/services/update_service.dart

@@ -1,6 +1,8 @@
 import 'package:dio/dio.dart';
 import 'dart:io';
 
+import 'package:flutter/services.dart';
+
 import '../../app/app_version.dart';
 import '../../core/errors/failure.dart';
 import '../../core/utils/result.dart';
@@ -15,9 +17,39 @@ class UpdateService {
   static const releasesUrl =
       'https://gitea.rardogsynapse.online/api/v1/repos/RarDog/Lunaris/releases';
 
+  static const _deviceChannel = MethodChannel('rulegel/device');
+
   final Dio _dio;
   final SettingsService _settingsService;
 
+  // Cached primary ABI (e.g. "arm64-v8a").
+  String? _cachedPrimaryAbi;
+
+  /// Returns the primary ABI of the running device.
+  /// On non-Android platforms returns an empty string.
+  Future<String> getPrimaryAbi() async {
+    if (_cachedPrimaryAbi != null) return _cachedPrimaryAbi!;
+    if (!Platform.isAndroid) return '';
+    try {
+      final abi = await _deviceChannel.invokeMethod<String>('getPrimaryAbi');
+      _cachedPrimaryAbi = abi ?? 'armeabi-v7a';
+    } catch (_) {
+      _cachedPrimaryAbi = 'armeabi-v7a';
+    }
+    return _cachedPrimaryAbi!;
+  }
+
+  /// Returns all supported ABIs of the running device.
+  Future<List<String>> getSupportedAbis() async {
+    if (!Platform.isAndroid) return const [];
+    try {
+      final abis = await _deviceChannel.invokeMethod<List<Object?>>('getSupportedAbis');
+      return abis?.whereType<String>().toList() ?? const [];
+    } catch (_) {
+      return const [];
+    }
+  }
+
   Future<Result<AppUpdateInfo?>> checkForUpdates({bool force = false}) async {
     final settingsResult = await _settingsService.getSettings();
     final settings = settingsResult is Success<AppSettings>
@@ -97,21 +129,40 @@ class UpdateService {
   AppUpdateInfo _releaseFromJson(Map<String, dynamic> json) {
     final tag = (json['tag_name'] ?? '').toString();
     final assets = (json['assets'] as List?) ?? const [];
+
     String? apkUrl;
+    String? apkArm64Url;
+    String? apkArmv7Url;
+    String? apkX86_64Url;
     String? installerUrl;
     String? portableUrl;
     String? linuxTarGzUrl;
+
     for (final item in assets.whereType<Map>()) {
       final name = (item['name'] ?? '').toString().toLowerCase();
       final url = (item['browser_download_url'] ?? '').toString();
       if (url.isEmpty) continue;
-      if (name.endsWith('.apk')) apkUrl = url;
+
+      if (name.endsWith('.apk')) {
+        // Detect per-ABI APKs by name pattern produced by --split-per-abi.
+        if (name.contains('arm64-v8a') || name.contains('arm64_v8a')) {
+          apkArm64Url = url;
+        } else if (name.contains('armeabi-v7a') || name.contains('armeabi_v7a')) {
+          apkArmv7Url = url;
+        } else if (name.contains('x86_64')) {
+          apkX86_64Url = url;
+        } else {
+          // Universal / fat APK
+          apkUrl = url;
+        }
+      }
       if (name.endsWith('.exe')) installerUrl = url;
       if (name.endsWith('.zip')) portableUrl = url;
       if (name.endsWith('.tar.gz') || name.endsWith('.tgz')) {
         linuxTarGzUrl = url;
       }
     }
+
     return AppUpdateInfo(
       version: _versionFromTag(tag),
       tagName: tag,
@@ -120,15 +171,21 @@ class UpdateService {
       htmlUrl: (json['html_url'] ?? '').toString(),
       publishedAt: DateTime.tryParse((json['published_at'] ?? '').toString()),
       apkUrl: apkUrl,
+      apkArm64Url: apkArm64Url,
+      apkArmv7Url: apkArmv7Url,
+      apkX86_64Url: apkX86_64Url,
       windowsInstallerUrl: installerUrl,
       portableZipUrl: portableUrl,
       linuxTarGzUrl: linuxTarGzUrl,
     );
   }
 
-  String? assetUrlForCurrentPlatform(AppUpdateInfo info) {
+  /// Returns the download URL for the current platform/ABI.
+  /// Pass [abi] (e.g. from [getPrimaryAbi]) on Android for per-ABI selection.
+  Future<String?> assetUrlForCurrentPlatform(AppUpdateInfo info) async {
     if (Platform.isAndroid) {
-      return info.apkUrl;
+      final abi = await getPrimaryAbi();
+      return info.apkUrlForAbi(abi);
     }
     if (Platform.isLinux) {
       return info.linuxTarGzUrl ?? info.portableZipUrl;

lib/features/settings/presentation/settings_screen.dart

@@ -1030,7 +1030,7 @@ class _SettingsContentState extends ConsumerState<_SettingsContent> {
 
   Future<void> _downloadUpdate(WidgetRef ref, AppUpdateInfo info) async {
     final updateService = ref.read(updateServiceProvider);
-    final assetUrl = updateService.assetUrlForCurrentPlatform(info);
+    final assetUrl = await updateService.assetUrlForCurrentPlatform(info);
     if (assetUrl == null) {
       final url = Uri.tryParse(info.htmlUrl);
       if (url != null) {

pubspec.yaml

@@ -1,7 +1,7 @@
 name: gel_rule_app
 description: Local backend/core layer for a Flutter booru browser app.
 publish_to: "none"
-version: 2.3.7+47
+version: 2.3.8+48
 
 environment:
   sdk: ">=3.3.0 <4.0.0"