beerlog/services/dumpservice.cpp

#include "dumpservice.h"

#include <QFile>
#include <QJsonDocument>
#include <QJsonArray>
#include <QJsonObject>
#include <QStandardPaths>

void DumpService::setEntityName(const QString &name)
{
    m_entityName = name;
}

void DumpService::dump(const QVariant &data) const
{
    QFile stash(dumpFileName());
    if (stash.open(QIODevice::WriteOnly)) {
        stash.write(QJsonDocument::fromVariant(data).toJson(QJsonDocument::Compact));
        stash.close();
    } else {
        qWarning() << stash.errorString();
    }
}

QVariantList DumpService::loadList() const
{
    QJsonDocument dump = readFile();
    return dump.array().toVariantList();
}

QVariantMap DumpService::loadMap() const
{
    QJsonDocument dump = readFile();
    return dump.object().toVariantMap();
}

void DumpService::clear() const
{
    QFile::remove(dumpFileName());
}

QString DumpService::dumpFileName() const
{
    Q_ASSERT(!m_entityName.isEmpty());

    return QString("%1/%2.dump").arg(QStandardPaths::writableLocation(QStandardPaths::CacheLocation), m_entityName);
}

QJsonDocument DumpService::readFile() const
{
    QJsonDocument res;

    QFile dump(dumpFileName());
    if (dump.open(QIODevice::ReadOnly)) {
        res = QJsonDocument::fromJson(dump.readAll());
        dump.close();
    } else {
        qWarning() << dump.errorString();
    }

    return res;
}