Can change conversation visibility

lib/helpers/groups_helper.dart

@@ -1,9 +1,11 @@
 import 'dart:typed_data';
 
+import 'package:comunic/helpers/conversations_helper.dart';
 import 'package:comunic/lists/group_members_list.dart';
 import 'package:comunic/lists/groups_list.dart';
 import 'package:comunic/models/advanced_group_info.dart';
 import 'package:comunic/models/api_request.dart';
+import 'package:comunic/models/conversation.dart';
 import 'package:comunic/models/group.dart';
 import 'package:comunic/models/group_membership.dart';
 import 'package:comunic/models/new_group_conversation.dart';
@@ -345,6 +347,20 @@ class GroupsHelper {
           .addString("name", conv.name)
           .execWithThrow();
 
+  /// Set new conversation visibility level
+  ///
+  /// Throws in case of failure
+  static Future<void> setConversationVisibility(
+          int convID, GroupMembershipLevel newLevel) async =>
+      await APIRequest.withLogin("groups/set_conversation_visibility")
+          .addInt("conv_id", convID)
+          .addString(
+              "min_membership_level",
+              APIGroupsMembershipLevelsMap.entries
+                  .firstWhere((e) => e.value == newLevel)
+                  .key)
+          .execWithThrow();
+
   /// Turn an API entry into a group object
   Group _getGroupFromAPI(Map<String, dynamic> map) {
     return Group(
@@ -381,6 +397,10 @@ class GroupsHelper {
         url: nullToEmpty(map["url"]),
         likes: map["number_likes"],
         userLike: map["is_liking"],
+        conversations: map["conversations"]
+            .map((s) => ConversationsHelper.apiToConversation(s))
+            .cast<Conversation>()
+            .toList(),
       );
 
   /// Create [GroupMembership] object from API entry

lib/models/advanced_group_info.dart

@@ -35,6 +35,7 @@ class AdvancedGroupInfo extends Group implements LikeElement {
     @required this.url,
     @required this.likes,
     @required this.userLike,
+    @required this.conversations,
   }) : super(
             id: id,
             name: name,

lib/models/conversation.dart

@@ -77,6 +77,8 @@ class Conversation extends SerializableElement<Conversation> {
   /// Check out whether a conversation is managed or not
   bool get isManaged => groupID != null;
 
+  bool get hasLogo => logoURL != null;
+
   Conversation.fromJson(Map<String, dynamic> map)
       : id = map["id"],
         name = map["name"],

lib/ui/screens/group_settings_screen.dart

@@ -1,8 +1,10 @@
 import 'dart:typed_data';
 
+import 'package:cached_network_image/cached_network_image.dart';
 import 'package:comunic/helpers/groups_helper.dart';
 import 'package:comunic/helpers/server_config_helper.dart';
 import 'package:comunic/models/advanced_group_info.dart';
+import 'package:comunic/models/conversation.dart';
 import 'package:comunic/models/group.dart';
 import 'package:comunic/models/new_group_conversation.dart';
 import 'package:comunic/ui/dialogs/input_user_password_dialog.dart';
@@ -284,12 +286,34 @@ class _GroupSettingsScreenState extends SafeState<GroupSettingsScreen> {
 
   SettingsSection _buildConversationsArea() => SettingsSection(
         title: tr("Group conversations"),
-        tiles: [
+        tiles: _groupSettings.conversations
+            .map(
+              (e) {
+                SettingsTile tile =
+                    MultiChoicesSettingsTile<GroupMembershipLevel>(
+                  title: e.name,
+                  choices: _conversationMinMembershipLevel,
+                  currentValue: e.groupMinMembershipLevel,
+                  leading: e.hasLogo
+                      ? CachedNetworkImage(
+                          imageUrl: e.logoURL,
+                          width: 30,
+                        )
+                      : Icon(Icons.group, size: 30),
+                  onChanged: (c) => _changeConversationVisibility(e, c),
+                );
+
+                return tile;
+              },
+            )
+            .toList()
+            .cast<SettingsTile>()
+              ..add(
                 SettingsTile(
                   title: tr("Create a new conversation"),
                   onPressed: _createNewGroupConversation,
                 ),
-        ],
+              ),
       );
 
   void _createNewGroupConversation(BuildContext context) async {
@@ -329,6 +353,18 @@ class _GroupSettingsScreenState extends SafeState<GroupSettingsScreen> {
     }
   }
 
+  void _changeConversationVisibility(
+      Conversation conv, GroupMembershipLevel newLevel) async {
+    try {
+      await GroupsHelper.setConversationVisibility(conv.id, newLevel);
+
+      _key.currentState.refresh();
+    } catch (e, s) {
+      logError(e, s);
+      snack(context, tr("Failed to change conversation visibility level!"));
+    }
+  }
+
   Widget _buildGroupLogoArea() {
     return SettingsSection(
       title: tr("Group logo"),

lib/ui/widgets/settings/multi_choices_settings_tile.dart

@@ -11,6 +11,8 @@ class MultiChoicesSettingsTile<T> extends SettingsTile {
   final List<MultiChoiceEntry<T>> choices;
   final T currentValue;
   final Function(T) onChanged;
+  final Widget leading;
+  final Widget trailing;
 
   const MultiChoicesSettingsTile({
     Key key,
@@ -18,6 +20,8 @@ class MultiChoicesSettingsTile<T> extends SettingsTile {
     @required this.choices,
     @required this.currentValue,
     @required this.onChanged,
+    this.leading,
+    this.trailing,
   })  : assert(title != null),
         assert(choices != null),
         assert(currentValue != null),
@@ -26,6 +30,8 @@ class MultiChoicesSettingsTile<T> extends SettingsTile {
   @override
   Widget build(BuildContext context) {
     return SettingsTile(
+      leading: leading,
+      trailing: trailing,
       title: title,
       subtitle: choices.firstWhere((f) => f.id == currentValue).title,
       onPressed: (_) => _changeValue(context),