Fix tags list not up to date after adding or removing a tag

src/core/Mirai.cpp

@@ -22,16 +22,7 @@ void Mirai::loadFile(const std::string &path)
 {
 	auto tasksFile = TodoMdFormat::readFile(path);
 	files->push_back(std::move(tasksFile));
-	tags.clear();
-	for (auto &file : *files) {
-		for (auto &task : file->getTasks()) {
-			for (auto &tag : task->getTags()) {
-				if (!vectorUtils::contains(tags, tag)) {
-					tags.push_back(tag);
-				}
-			}
-		}
-	}
+	reloadTags();
 }
 
 void Mirai::save()
@@ -42,6 +33,7 @@ void Mirai::save()
 			file->setDirty(false);
 		}
 	}
+	reloadTags();
 }
 
 void Mirai::addTask(TaskItemData taskItem)
@@ -103,4 +95,18 @@ const std::vector<std::string> &Mirai::getTags()
 	return tags;
 }
 
+void Mirai::reloadTags()
+{
+	tags.clear();
+	for (auto &file : *files) {
+		for (auto &task : file->getTasks()) {
+			for (auto &tag : task->getTags()) {
+				if (!vectorUtils::contains(tags, tag)) {
+					tags.push_back(tag);
+				}
+			}
+		}
+	}
+}
+
 } // namespace mirai

src/core/Mirai.h

@@ -36,6 +36,8 @@ class Mirai
 	std::weak_ptr<TasksView> getTasks();
 	const std::vector<std::string> &getTags();
 
+	void reloadTags();
+
   private:
 	// The `TasksFile`s are shared to the views, their lifetime can outlive
 	// this (Mirai) object

src/core/TasksView.cpp

@@ -45,6 +45,15 @@ void TasksView::update()
 			tasksToShow.push_back(task.get());
 		}
 	}
+
+	std::ranges::sort(tasksToShow, [](const TaskItem *t1, const TaskItem *t2) {
+		if (t1->hasDate() && !t2->hasDate()) {
+			return true;
+		} else if (!t1->hasDate() && t2->hasDate()) {
+			return false;
+		}
+		return t1->getDate() < t2->getDate();
+	});
 }
 
 void TasksView::addTagFilter(const std::string &tag)