add install addon functionality

app/lib/features/geckoview/features/browser/domain/services/browser_addon.dart

@@ -0,0 +1,50 @@
+import 'dart:convert';
+
+import 'package:http/http.dart' as http;
+import 'package:lensai/core/logger.dart';
+import 'package:lensai/features/geckoview/domain/providers.dart';
+import 'package:riverpod_annotation/riverpod_annotation.dart';
+
+part 'browser_addon.g.dart';
+
+@Riverpod()
+class BrowserAddonService extends _$BrowserAddonService {
+  Future<Uri> getAddonXpiUrl(String guid) async {
+    final url = 'https://addons.mozilla.org/api/v5/addons/addon/$guid/';
+
+    try {
+      final response = await http.get(Uri.parse(url));
+
+      if (response.statusCode == 200) {
+        final data = jsonDecode(response.body) as Map<String, dynamic>;
+
+        // ignore: avoid_dynamic_calls
+        final xpiUrl = data['current_version']['file']['url'] as String;
+
+        return Uri.parse(xpiUrl);
+      } else {
+        throw Exception('Failed to load addon data: ${response.statusCode}');
+      }
+    } catch (e) {
+      throw Exception('Error fetching addon data: $e');
+    }
+  }
+
+  Future<bool> install(String addonGuid) async {
+    try {
+      final xpiUrl = await getAddonXpiUrl(addonGuid);
+      await ref.read(addonServiceProvider).installAddon(xpiUrl);
+
+      return true;
+    } catch (e, s) {
+      logger.e('Failed installing $addonGuid', error: e, stackTrace: s);
+
+      return false;
+    }
+  }
+
+  @override
+  void build() {
+    return;
+  }
+}

app/lib/features/geckoview/features/browser/domain/services/browser_addon.g.dart

@@ -0,0 +1,28 @@
+// GENERATED CODE - DO NOT MODIFY BY HAND
+
+part of 'browser_addon.dart';
+
+// **************************************************************************
+// RiverpodGenerator
+// **************************************************************************
+
+String _$browserAddonServiceHash() =>
+    r'1dd73c322e712e1492d74f1af844d5b5cc8f81bb';
+
+/// See also [BrowserAddonService].
+@ProviderFor(BrowserAddonService)
+final browserAddonServiceProvider =
+    AutoDisposeNotifierProvider<BrowserAddonService, void>.internal(
+      BrowserAddonService.new,
+      name: r'browserAddonServiceProvider',
+      debugGetCreateSourceHash:
+          const bool.fromEnvironment('dart.vm.product')
+              ? null
+              : _$browserAddonServiceHash,
+      dependencies: null,
+      allTransitiveDependencies: null,
+    );
+
+typedef _$BrowserAddonService = AutoDisposeNotifier<void>;
+// ignore_for_file: type=lint
+// ignore_for_file: subtype_of_sealed_class, invalid_use_of_internal_member, invalid_use_of_visible_for_testing_member, deprecated_member_use_from_same_package

packages/flutter_mozilla_components/android/src/main/kotlin/eu/lensai/flutter_mozilla_components/api/GeckoAddonsApiImpl.kt

@@ -24,4 +24,16 @@ class GeckoAddonsApiImpl(private val context: Context) : GeckoAddonsApi {
             WebExtensionActionType.PAGE -> components.features.webExtensionToolbarFeature.invokeAddonPageAction(extensionId)
         }
     }
+
+    override fun installAddon(url: String, callback: (Result<Unit>) -> Unit) {
+        components.core.addonManager.installAddon(
+            url = url,
+            onSuccess = { _ ->
+                callback(Result.success(Unit))
+            },
+            onError = { e ->
+                callback(Result.failure(e))
+            }
+        )
+    }
 }

packages/flutter_mozilla_components/lib/src/domain/services/gecko_addon.dart

@@ -39,6 +39,10 @@ class GeckoAddonService extends GeckoAddonEvents {
     return _api.invokeAddonAction(extensionId, actionType);
   }
 
+  Future<void> installAddon(Uri url) {
+    return _api.installAddon(url.toString());
+  }
+
   @override
   void onRemoveWebExtensionAction(
     int timestamp,

packages/flutter_mozilla_components/pigeons/gecko.dart

@@ -1058,6 +1058,9 @@ abstract class GeckoAddonsApi {
   void startAddonManagerActivity();
 
   void invokeAddonAction(String extensionId, WebExtensionActionType actionType);
+
+  @async
+  void installAddon(String url);
 }
 
 @FlutterApi()