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    ListModel {
        id: todayTasksListModel
    }

    ListModel {
        id: thisWeekTasksListModel
    }

    ListModel {
        id: laterTasksListModel
    }

    Column {
        id: column

        anchors.fill: parent
        spacing: 14

        TasksList {
            id: todayTasks

            width: column.width
            maxHeight: 180
            listModel: todayTasksListModel
            headerText: qsTr("Today")
            tasksCount: todayTasksListModel.count
        }

        TasksList {
            id: thisWeekTasks

            width: column.width
            maxHeight: column.height - y - 60
            listModel: thisWeekTasksListModel
            headerText: qsTr("This week")
            tasksCount: thisWeekTasksListModel.count
        }

        TasksList {
            id: laterTasks

            width: column.width
            maxHeight: column.height - y
            listModel: laterTasksListModel
            headerText: qsTr("Later")
            tasksCount: laterTasksListModel.count
        }
    }

    function createTasksLists() : void {
        var tasks = Database.getTasks()
        var currentDate = new Date()
        var format = Qt.locale().dateFormat(Locale.LongFormat)
        var dateStr = currentDate.toLocaleDateString(Qt.locale(),format)
        tasks.forEach( function(task){
            if (task.date === dateStr) {
                todayTasksModel.append(task)
            } else if (checkThisWeekDate(task.date)) {
                thisWeekTasksModel.append(task)
            } else {
                laterTasksModel.append(task)
            }
        })
    }

    Component.onCompleted: createTasksLists()

    property var _db

    function _database() {
        if (_db) return _db

        try {
            let db = LocalStorage.openDatabaseSync("ToDoList", "1.0", "ToDoList app database")

            db.transaction(function (tx) {
                tx.executeSql(`CREATE TABLE IF NOT EXISTS tasks (
                              task_id INTEGER PRIMARY KEY AUTOINCREMENT,
                              task_name,
                              task_dueDate TEXT,
                              task_dueTime TEXT,
                              task_notes TEXT,
                              done INTEGER,
                              highlighted INTEGER
                              )`);
            })

            _db = db
        } catch (error) {
            console.log("Error opening databse: " + error)
        };
        return _db
    }

    function addTask(taskName, taskDueDate, taskDueTime, taskNotes, taskDone, taskHighlighted) {
        let results
        root._database().transaction(function(tx){
            tx.executeSql(`INSERT INTO tasks (task_name, task_dueDate, task_dueTime,
                          task_notes, done, highlighted) VALUES(?,?,?,?,?,?);`,
                        [taskName, taskDueDate, taskDueTime, taskNotes, taskDone, taskHighlighted])
            results = tx.executeSql("SELECT * FROM tasks ORDER BY task_id DESC LIMIT 1")
        })
        return results.rows.item(0).task_id
    }

    function sendHttpRequest() : void {
        var http = new XMLHttpRequest()
        var url = "https://www.boredapi.com/api/activity";
        http.open("GET", url, true);

        http.setRequestHeader("Content-type", "application/json");
        http.setRequestHeader("Connection", "close");

        http.onreadystatechange = function() {
            if (http.readyState == 4) {
                if (http.status == 200) {
                    let object = JSON.parse(http.responseText.toString());
                    let currentDate = new Date()
                    let format = Qt.locale().dateFormat(Locale.LongFormat)
                    addTask(todayTasksModel, object.activity,
                            currentDate.toLocaleDateString(Qt.locale(), format), "","")
                } else {
                    console.log("Failed to fetch a random TODO item; the API provider might be down")
                }
            }
        }
        http.send();
    }