feat: bring back share link to join spaces (#1701)

lib/config/routes.dart

@@ -34,6 +34,7 @@ import 'package:fluffychat/pangea/guard/p_vguard.dart';
 import 'package:fluffychat/pangea/login/pages/login_or_signup_view.dart';
 import 'package:fluffychat/pangea/login/pages/signup.dart';
 import 'package:fluffychat/pangea/login/pages/user_settings.dart';
+import 'package:fluffychat/pangea/spaces/utils/join_with_alias.dart';
 import 'package:fluffychat/pangea/spaces/utils/join_with_link.dart';
 import 'package:fluffychat/pangea/subscription/pages/settings_subscription.dart';
 import 'package:fluffychat/pangea/user/pages/find_partner.dart';
@@ -134,6 +135,20 @@ abstract class AppRoutes {
         const JoinClassWithLink(),
       ),
     ),
+    GoRoute(
+      path: '/join_with_alias',
+      pageBuilder: (context, state) => defaultPageBuilder(
+        context,
+        state,
+        const JoinWithAlias(),
+      ),
+      redirect: (context, state) {
+        if (Matrix.of(context).client.isLogged()) {
+          return '/rooms/join_with_alias?alias=${state.uri.queryParameters['alias']}';
+        }
+        return null;
+      },
+    ),
     GoRoute(
       path: '/user_age',
       pageBuilder: (context, state) => defaultPageBuilder(
@@ -209,6 +224,14 @@ abstract class AppRoutes {
             //     ),
             //   ],
             // ),
+            GoRoute(
+              path: '/join_with_alias',
+              pageBuilder: (context, state) => defaultPageBuilder(
+                context,
+                state,
+                const JoinWithAlias(),
+              ),
+            ),
             // Pangea#
             GoRoute(
               path: 'archive',

lib/pangea/common/constants/local.key.dart

@@ -1,6 +1,7 @@
 class PLocalKey {
   static const String access = "access";
   static const String cachedClassCodeToJoin = "cachedclasscodetojoin";
+  static const String cachedAliasToJoin = "cachedAliasToJoin";
   static const String beganWebPayment = "beganWebPayment";
   static const String dismissedPaywall = 'dismissedPaywall';
   static const String paywallBackoff = 'paywallBackoff';

lib/pangea/spaces/controllers/space_controller.dart

@@ -4,6 +4,7 @@ import 'dart:convert';
 import 'package:flutter/material.dart';
 
 import 'package:flutter_gen/gen_l10n/l10n.dart';
+import 'package:get_storage/get_storage.dart';
 import 'package:go_router/go_router.dart';
 import 'package:matrix/matrix.dart';
 
@@ -23,6 +24,8 @@ class ClassController extends BaseController {
     _pangeaController = pangeaController;
   }
 
+  static final GetStorage _aliasStorage = GetStorage('alias_storage');
+
   void setActiveSpaceIdInChatListController(String? classId) {
     setState({"activeSpaceId": classId});
   }
@@ -33,6 +36,8 @@ class ClassController extends BaseController {
       isAccountData: false,
     );
 
+    final String? alias = _aliasStorage.read(PLocalKey.cachedAliasToJoin);
+
     if (classCode != null) {
       await joinClasswithCode(
         context,
@@ -43,9 +48,52 @@ class ClassController extends BaseController {
         PLocalKey.cachedClassCodeToJoin,
         isAccountData: false,
       );
+    } else if (alias != null) {
+      await joinCachedRoomAlias(alias, context);
+      await _aliasStorage.remove(PLocalKey.cachedAliasToJoin);
     }
   }
 
+  Future<void> joinCachedRoomAlias(
+    String alias,
+    BuildContext context,
+  ) async {
+    if (alias.isEmpty) {
+      context.go("/rooms");
+      return;
+    }
+
+    final client = Matrix.of(context).client;
+    if (!client.isLogged()) {
+      await _aliasStorage.write(PLocalKey.cachedAliasToJoin, alias);
+      context.go("/home");
+      return;
+    }
+
+    Room? room = client.getRoomByAlias(alias) ?? client.getRoomById(alias);
+    if (room != null) {
+      room.isSpace
+          ? context.push("/rooms/${room.id}/details")
+          : context.go("/rooms/${room.id}");
+      return;
+    }
+
+    final roomID = await client.joinRoom(alias);
+    room = client.getRoomById(roomID);
+    if (room == null) {
+      await client.waitForRoomInSync(roomID);
+      room = client.getRoomById(roomID);
+      if (room == null) {
+        context.go("/rooms");
+        return;
+      }
+    }
+
+    room.isSpace
+        ? context.push("/rooms/${room.id}/details")
+        : context.go("/rooms/${room.id}");
+  }
+
   Future<void> joinClasswithCode(
     BuildContext context,
     String classCode, {

lib/pangea/spaces/utils/join_with_alias.dart

@@ -0,0 +1,45 @@
+import 'package:flutter/material.dart';
+
+import 'package:go_router/go_router.dart';
+
+import 'package:fluffychat/widgets/future_loading_dialog.dart';
+import 'package:fluffychat/widgets/layouts/empty_page.dart';
+import 'package:fluffychat/widgets/matrix.dart';
+
+class JoinWithAlias extends StatefulWidget {
+  const JoinWithAlias({super.key});
+
+  @override
+  State<JoinWithAlias> createState() => _JoinWithAliasState();
+}
+
+class _JoinWithAliasState extends State<JoinWithAlias> {
+  @override
+  void initState() {
+    super.initState();
+    WidgetsBinding.instance.addPostFrameCallback(
+      (_) => showFutureLoadingDialog(
+        context: context,
+        future: () async => _joinRoom(),
+      ),
+    );
+  }
+
+  Future<void> _joinRoom() async {
+    final String? alias =
+        GoRouterState.of(context).uri.queryParameters['alias'];
+
+    if (alias == null || alias.isEmpty) {
+      context.go("/rooms");
+      return;
+    }
+
+    await MatrixState.pangeaController.classController.joinCachedRoomAlias(
+      alias,
+      context,
+    );
+  }
+
+  @override
+  Widget build(BuildContext context) => const EmptyPage();
+}

lib/widgets/public_room_bottom_sheet.dart

@@ -6,6 +6,7 @@ import 'package:go_router/go_router.dart';
 import 'package:matrix/matrix.dart';
 
 import 'package:fluffychat/config/app_config.dart';
+import 'package:fluffychat/pangea/common/config/environment.dart';
 import 'package:fluffychat/pangea/extensions/pangea_room_extension.dart';
 import 'package:fluffychat/utils/fluffy_share.dart';
 import 'package:fluffychat/utils/url_launcher.dart';
@@ -140,22 +141,29 @@ class PublicRoomBottomSheetState extends State<PublicRoomBottomSheet> {
               onPressed: Navigator.of(context, rootNavigator: false).pop,
             ),
           ),
-          // #Pangea
-          // actions: roomAlias == null
-          //     ? null
-          //     : [
-          //         Padding(
-          //           padding: const EdgeInsets.symmetric(horizontal: 8.0),
-          //           child: IconButton(
-          //             icon: const Icon(Icons.qr_code_rounded),
-          //             onPressed: () => showQrCodeViewer(
-          //               context,
-          //               roomAlias,
-          //             ),
-          //           ),
-          //         ),
-          //       ],
-          // Pangea#
+          actions: roomAlias == null
+              ? null
+              : [
+                  Padding(
+                    padding: const EdgeInsets.symmetric(horizontal: 8.0),
+                    child: IconButton(
+                      icon: const Icon(Icons.qr_code_rounded),
+                      // #Pangea
+                      // onPressed: () => showQrCodeViewer(
+                      //   context,
+                      //   roomAlias,
+                      // ),
+                      onPressed: () {
+                        FluffyShare.share(
+                          "${Environment.frontendURL}/#/join_with_alias?alias=${Uri.encodeComponent(roomAlias)}",
+                          context,
+                        );
+                        Navigator.of(context).pop();
+                      },
+                      // Pangea#
+                    ),
+                  ),
+                ],
         ),
         body: FutureBuilder<PublicRoomsChunk>(
           future: _search(),