Reduce nesting

src/libneochat/neochatroom.cpp

@@ -886,11 +886,12 @@ void NeoChatRoom::addParent(const QString &parentId, bool canonical, bool setPar
 
     setState("m.space.parent"_L1, parentId, QJsonObject{{"canonical"_L1, canonical}, {"via"_L1, QJsonArray{connection()->domain()}}});
 
-    if (setParentChild) {
+    if (!setParentChild) {
+        return;
+    }
     if (auto parent = static_cast<NeoChatRoom *>(connection()->room(parentId))) {
         parent->setState("m.space.child"_L1, id(), QJsonObject{{"via"_L1, QJsonArray{connection()->domain()}}});
     }
-    }
 }
 
 void NeoChatRoom::removeParent(const QString &parentId)
@@ -940,25 +941,29 @@ void NeoChatRoom::addChild(const QString &childId, bool setChildParent, bool can
     }
     setState("m.space.child"_L1, childId, QJsonObject{{"via"_L1, QJsonArray{connection()->domain()}}, {"suggested"_L1, suggested}, {"order"_L1, order}});
 
-    if (setChildParent) {
+    if (!setChildParent) {
+        return;
+    }
     if (auto child = static_cast<NeoChatRoom *>(connection()->room(childId))) {
-            if (child->canSendState("m.space.parent"_L1)) {
+        if (!child->canSendState("m.space.parent"_L1)) {
+            return;
+        }
         child->setState("m.space.parent"_L1, id(), QJsonObject{{"canonical"_L1, canonical}, {"via"_L1, QJsonArray{connection()->domain()}}});
 
-                if (canonical) {
+        if (!canonical) {
+            return;
+        }
         // Only one canonical parent can exist so make sure others are set to false.
         auto parentEvents = child->currentState().eventsOfType("m.space.parent"_L1);
         for (const auto &parentEvent : parentEvents) {
-                        if (parentEvent->contentPart<bool>("canonical"_L1)) {
+            if (!parentEvent->contentPart<bool>("canonical"_L1)) {
+                continue;
+            }
             auto content = parentEvent->contentJson();
             content.insert("canonical"_L1, false);
             setState("m.space.parent"_L1, parentEvent->stateKey(), content);
         }
     }
-                }
-            }
-        }
-    }
 }
 
 void NeoChatRoom::removeChild(const QString &childId, bool unsetChildParent)
@@ -971,13 +976,15 @@ void NeoChatRoom::removeChild(const QString &childId, bool unsetChildParent)
     }
     setState("m.space.child"_L1, childId, {});
 
-    if (unsetChildParent) {
+    if (!unsetChildParent) {
+        return;
+    }
     if (auto child = static_cast<NeoChatRoom *>(connection()->room(childId))) {
-            if (child->canSendState("m.space.parent"_L1) && child->currentState().contains("m.space.parent"_L1, id())) {
+        if (!child->canSendState("m.space.parent"_L1) || !child->currentState().contains("m.space.parent"_L1, id())) {
+            return;
+        }
         child->setState("m.space.parent"_L1, id(), {});
     }
-        }
-    }
 }
 
 bool NeoChatRoom::isSuggested(const QString &childId)