#include "settingshandler.h"

#include <QSettings>

QVariantMap SettingsHandler::getSettings(QString group) {
  QSettings settings;
  QVariantMap result;

  if (!group.isEmpty()) {
    settings.beginGroup(group);
  }

  foreach (QString key, settings.allKeys()) {
    result.insert(key, settings.value(key));
  }

  if (!group.isEmpty()) {
    settings.endGroup();
  }

  return result;
}

void SettingsHandler::saveSettings(QVariantMap settingMap, QString group) {
  qInfo() << "saving settings...";

  QSettings settings;
  if (!group.isEmpty()) {
    settings.beginGroup(group);
  }

  foreach (QString key, settingMap.keys()) {
    //    qDebug() << "saving:" << key << "-" << settingMap.value(key);
    settings.setValue(key, settingMap.value(key));
  }
  if (!group.isEmpty()) {
    settings.endGroup();
  }

  settings.sync();
}

void SettingsHandler::deleteSettings(QStringList keys, QString group) {
  qInfo() << "deleting settings...";

  QSettings settings;
  if (!group.isEmpty()) {
    qDebug() << "starting group:" << group;
    settings.beginGroup(group);
  }

  foreach (QString key, keys) {
    qDebug() << "removing:" << key;
    settings.remove(key);
  }
  if (!group.isEmpty()) {
    settings.endGroup();
  }

  settings.sync();
}

QVariantMap SettingsHandler::getChangeset(QVariantMap newSettings, QString group) {
  const QVariantMap oldSettings = getSettings(group);

  QVariantMap result;

  for (QVariantMap::const_iterator iter = newSettings.begin(); iter != newSettings.end(); ++iter) {
    qDebug() << iter.key() << iter.value();
    QString key       = iter.key();
    QVariant newValue = iter.value();
    QVariant oldValue = oldSettings.value(key);

    if (oldValue == newValue) {
      qInfo() << "oldValue == newValue -> ignoring...";
    } else {
      const QString debugString =
          QString("oldValue != newValue -> adding '%1' to changeset...").arg(key);
      qInfo() << debugString;
      result.insert(key, newValue);
    }
  }

  return result;
}

SettingsHandler::SettingsHandler() {}