#include "signal-transformer.h"

QMutex SignalTransformer::s_mutex;

SignalTransformer *SignalTransformer::getTransformer()
{
    static SignalTransformer *instance = new SignalTransformer();
    return instance;
}

void SignalTransformer::handleItemInsert(const QString &desktopFilePath)
{
    QMutexLocker locker(&s_mutex);
    m_items2BInsert.append(desktopFilePath);
}

void SignalTransformer::handleItemUpdate(const ApplicationInfoMap &item)
{
    QMutexLocker locker(&s_mutex);
    for(auto it = item.constBegin(); it != item.constEnd(); it++) {
        PropertyMap propertyinfo = it.value();
        for (auto i = propertyinfo.constBegin(); i != propertyinfo.constEnd(); i++) {
            m_items2BUpdate[it.key()].insert(i.key(), i.value());
        }
    }
}

void SignalTransformer::handleItemUpdateAll(const QString &desktopFilePath)
{
    QMutexLocker locker(&s_mutex);
    m_items2BUpdateAll.append(desktopFilePath);
}

void SignalTransformer::handleItemDelete(const QString &desktopFilePath)
{
    QMutexLocker locker(&s_mutex);
    m_items2BDelete.append(desktopFilePath);
}

void SignalTransformer::handleSignalTransform()
{
    QMutexLocker locker(&s_mutex);
    if (!m_items2BInsert.isEmpty()) {
        Q_EMIT this->appDBItemsAdd(m_items2BInsert);
        m_items2BInsert.clear();
    }

    if (!m_items2BUpdate.isEmpty()) {
        Q_EMIT this->appDBItemsUpdate(m_items2BUpdate);
        m_items2BUpdate.clear();
    }

    if (!m_items2BUpdateAll.isEmpty()) {
        Q_EMIT this->appDBItemsUpdateAll(m_items2BUpdateAll);
        m_items2BUpdateAll.clear();
    }

    if (!m_items2BDelete.isEmpty()) {
        Q_EMIT this->appDBItemsDelete(m_items2BDelete);
        m_items2BDelete.clear();
    }
}

SignalTransformer::SignalTransformer(QObject *parent) : QObject(parent)
{
    connect(AppDBManager::getInstance(), &AppDBManager::appDBItemAdd, this, &SignalTransformer::handleItemInsert);
    connect(AppDBManager::getInstance(), &AppDBManager::appDBItemUpdate, this, &SignalTransformer::handleItemUpdate);
    connect(AppDBManager::getInstance(), &AppDBManager::appDBItemDelete, this, &SignalTransformer::handleItemDelete);
    connect(AppDBManager::getInstance(), &AppDBManager::appDBItemUpdateAll, this, &SignalTransformer::handleItemUpdateAll);
    connect(AppDBManager::getInstance(), &AppDBManager::finishHandleAppDB, this, &SignalTransformer::handleSignalTransform);
}