feat: Archive with clean up

lib/l10n/intl_en.arb

@@ -21,6 +21,11 @@
     "type": "text",
     "placeholders": {}
   },
+  "clearArchive": "Clear archive",
+  "@people": {
+    "type": "text",
+    "placeholders": {}
+  },
   "publicGroups": "Public Groups",
   "@publicGroups": {
     "type": "text",

lib/views/archive.dart

@@ -1,7 +1,10 @@
+import 'package:adaptive_dialog/adaptive_dialog.dart';
 import 'package:famedlysdk/famedlysdk.dart';
 import 'package:fluffychat/views/ui/archive_ui.dart';
 import 'package:fluffychat/views/widgets/matrix.dart';
 import 'package:flutter/material.dart';
+import 'package:future_loading_dialog/future_loading_dialog.dart';
+import 'package:flutter_gen/gen_l10n/l10n.dart';
 
 class Archive extends StatefulWidget {
   @override
@@ -18,6 +21,31 @@ class ArchiveController extends State<Archive> {
 
   void forgetAction(int i) => setState(() => archive.removeAt(i));
 
+  void forgetAllAction() async {
+    if (await showOkCancelAlertDialog(
+          context: context,
+          title: L10n.of(context).areYouSure,
+          okLabel: L10n.of(context).yes,
+          cancelLabel: L10n.of(context).cancel,
+          message: L10n.of(context).clearArchive,
+          useRootNavigator: false,
+        ) !=
+        OkCancelResult.ok) {
+      return;
+    }
+    await showFutureLoadingDialog(
+      context: context,
+      future: () async {
+        while (archive.isNotEmpty) {
+          Logs().v('Forget room ${archive.last.displayname}');
+          await archive.last.forget();
+          archive.removeLast();
+        }
+      },
+    );
+    setState(() => null);
+  }
+
   @override
   Widget build(BuildContext context) => ArchiveUI(this);
 }

lib/views/ui/archive_ui.dart

@@ -11,34 +11,48 @@ class ArchiveUI extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
-    return Scaffold(
-      appBar: AppBar(
-        leading: BackButton(),
-        title: Text(L10n.of(context).archive),
-      ),
-      body: FutureBuilder<List<Room>>(
-        future: controller.getArchive(context),
-        builder: (BuildContext context, snapshot) {
-          if (snapshot.hasError) {
-            return Center(
-                child: Text(
-              L10n.of(context).oopsSomethingWentWrong,
-              textAlign: TextAlign.center,
-            ));
-          }
-          if (!snapshot.hasData) {
-            return Center(child: CircularProgressIndicator());
-          } else {
-            controller.archive = snapshot.data;
-            return ListView.builder(
-              itemCount: controller.archive.length,
-              itemBuilder: (BuildContext context, int i) => ChatListItem(
-                controller.archive[i],
-                onForget: controller.forgetAction,
-              ),
-            );
-          }
-        },
+    return FutureBuilder<List<Room>>(
+      future: controller.getArchive(context),
+      builder: (BuildContext context, snapshot) => Scaffold(
+        appBar: AppBar(
+          leading: BackButton(),
+          title: Text(L10n.of(context).archive),
+          actions: [
+            if (snapshot.hasData &&
+                controller.archive != null &&
+                controller.archive.isNotEmpty)
+              TextButton(
+                onPressed: controller.forgetAllAction,
+                child: Text(L10n.of(context).clearArchive),
+              )
+          ],
+        ),
+        body: Builder(
+          builder: (BuildContext context) {
+            if (snapshot.hasError) {
+              return Center(
+                  child: Text(
+                L10n.of(context).oopsSomethingWentWrong,
+                textAlign: TextAlign.center,
+              ));
+            }
+            if (!snapshot.hasData) {
+              return Center(child: CircularProgressIndicator());
+            } else {
+              controller.archive = snapshot.data;
+              if (controller.archive.isEmpty) {
+                return Center(child: Icon(Icons.archive_outlined, size: 80));
+              }
+              return ListView.builder(
+                itemCount: controller.archive.length,
+                itemBuilder: (BuildContext context, int i) => ChatListItem(
+                  controller.archive[i],
+                  onForget: controller.forgetAction,
+                ),
+              );
+            }
+          },
+        ),
       ),
     );
   }