Project-Orion/src/Project-Orion/serialization.cpp

#include "serialization.h"
#include <filesystem>
#include <QFile>
#include <QJsonDocument>
#include <QJsonArray>
#include <QJsonObject>

UserList loadUserList(const QString &file)
{
    QFile doc{std::filesystem::path{file.toStdString()}};
    doc.open(QFile::ReadOnly);

    QString fileContents = doc.readAll();

    QJsonParseError errors;
    QJsonDocument document =
        QJsonDocument::fromJson(fileContents.toUtf8(),
        &errors);

    if (document.isNull())
    {
        qDebug() << errors.errorString();
        throw std::runtime_error{"Could not parse JSON file"};
    }

    QJsonArray array = document.array();
    QVector<User> container;

    for (QJsonArray::const_iterator elem = array.constBegin(); elem != array.constEnd(); ++elem)
    {
        auto obj = elem->toObject();
        User newUser{obj[NAME_LABEL].toString(), QDate::fromString(obj[DATE_OF_BIRTH_LABEL].toString()),
                     QDate::fromString(obj[DATE_OF_DEATH_LABEL].toString()), obj[DEFAULT_LABEL].toBool()};

        container.append(newUser);
    }

    return container;
}

void saveUserList(const UserList &list, const QString &file)
{
    QFile doc{std::filesystem::path{file.toStdString()}};
    doc.open(QFile::WriteOnly);

    QJsonArray container;

    for(auto &obj: list)
    {
        QJsonObject newObject;
        newObject[NAME_LABEL] = obj.getName();
        newObject[DATE_OF_BIRTH_LABEL] = obj.getDateOfBirth().toString();
        newObject[DATE_OF_DEATH_LABEL] = obj.getDateOfDeath().toString();
        newObject[DEFAULT_LABEL] = obj.getIsItDefault();

        container.append(newObject);
    }

    QJsonDocument document{container};
    doc.write(document.toJson());
}