first commit

src/Backend.cpp

@@ -0,0 +1,142 @@
+/* 
+ * Mirai. Copyright (C) 2024 Vyn
+ * This file is licensed under version 3 of the GNU General Public License (GPL-3.0-only)
+ * The license can be found in the LICENSE file or at https://www.gnu.org/licenses/gpl-3.0.txt
+ */
+
+#include "Backend.h"
+
+Backend::Backend() {
+	std::cout << "Backend created" << std::endl;
+	QDir().mkdir(QDir::homePath() + "/.config/mirai");
+	QFile loadFile(QDir::homePath() + "/.config/mirai/config.json");
+
+	if (!loadFile.open(QIODevice::ReadOnly)) {
+		qWarning() << "Couldn't find existing config file";
+		exit(1);
+	}
+	
+	QByteArray loadData = loadFile.readAll();
+	QJsonDocument json = QJsonDocument::fromJson(loadData);
+	loadFile.close();
+	if (!json.isObject()) {
+		qWarning() << "config.json is not a valid config file";
+		exit(1);
+	}
+	QJsonObject jsonRootObject = json.object();
+	
+	auto jsonFilesPath = json["files"];
+	if (!jsonFilesPath.isArray()) {
+		qWarning() << "config.json should contains a 'files' string array";
+		exit(1);
+	}
+	QString filePath = jsonFilesPath.toArray()[0].toString();
+	mirai.loadFile(filePath.toStdString());
+	view = mirai.getTasks();
+	rebuildQMLTasksList();
+}
+
+void Backend::addTodo(QString newTodo, QString date) {
+	mirai.addTask(newTodo.toStdString(), date.toStdString());
+	mirai.save();
+	rebuildQMLTasksList();
+	emit tasksChanged();
+}
+
+void Backend::addTagFilter(QString tag) {
+	view.lock()->addTagFilter(tag.toStdString());
+	rebuildQMLTasksList();
+	emit tasksChanged();
+}
+
+void Backend::removeTagFilter(QString tag) {
+	view.lock()->removeTagFilter(tag.toStdString());
+	rebuildQMLTasksList();
+	emit tasksChanged();
+}
+
+void Backend::removeFilters() {
+	view.lock()->removeFilters();
+	rebuildQMLTasksList();
+	emit tasksChanged();
+}
+
+void Backend::updateTodo(int todoIndex, QString state, QString text, QString date) {
+	QMLTaskItem& taskItem = QMLTasks[todoIndex];
+	taskItem.taskItem->state = state == "TODO" ? mirai::TODO : mirai::DONE;
+	if (state == "DONE") {
+		taskItem.taskItem->markAsDone();
+	} else if (state == "TODO") {
+		taskItem.taskItem->markAsUndone();
+	}
+	taskItem.taskItem->setText(text.toStdString());
+	taskItem.taskItem->setDate(date.toStdString());
+	mirai.save();
+	rebuildQMLTasksList();
+	emit tasksChanged();
+}
+
+void Backend::removeTodo(int todoIndex) {
+	QMLTaskItem& taskItem = QMLTasks[todoIndex];
+	mirai.removeTask(taskItem.taskItem);
+	mirai.save();
+	rebuildQMLTasksList();
+	emit tasksChanged();
+}
+
+void Backend::hideCompletedTasks(bool shouldHide) {
+	shouldHideCompletedTasks_ = shouldHide;
+	rebuildQMLTasksList();
+	emit tasksChanged();
+}
+
+void Backend::rebuildQMLTasksList() {
+	QMLTasks.clear();
+	std::string lastDate = "";
+	std::time_t t = std::time(nullptr);
+	std::tm tm = *std::localtime(&t);
+	std::stringstream currentDate;
+	currentDate << std::put_time(&tm, "%Y-%m-%d");
+	for (int i = 0; i < view.lock()->count(); ++i) {
+		mirai::TaskItem& task = (*view.lock())[i];
+		if (shouldHideCompletedTasks_ && task.getState() == mirai::DONE && task.hasDate() && task.getDate() < currentDate.str()) {
+			continue;
+		}
+		bool shouldShowDate = false;
+		if (lastDate != task.date) {
+			lastDate = task.date;
+			shouldShowDate = true;
+		}
+		QMLTasks.push_back({
+			.taskItem = &task,
+			.shouldShowDate = shouldShowDate
+		});
+	}
+
+
+	QMLTags.clear();
+	for (auto& tag : mirai.getTags()) {
+		QMLTags.push_back(QString::fromStdString(tag));
+	}
+
+	QMLActiveTagsFilter.clear();
+	for (auto& activeTagFilter: view.lock()->getActiveTagsFilter()) {
+		QMLActiveTagsFilter.push_back(QString::fromStdString(activeTagFilter));
+	}
+}
+
+QVariant Backend::getTasks() {
+	return QVariant::fromValue(QMLTasks);
+}
+
+QVariant Backend::getTags() {
+	return QVariant::fromValue(QMLTags);
+}
+
+QVariant Backend::getActiveTagsFilter() {
+	return QVariant::fromValue(QMLActiveTagsFilter);
+}
+
+bool Backend::shouldHideCompletedTasks() { 
+	return shouldHideCompletedTasks_;
+}