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** Copyright (C) 2016 The Qt Company Ltd.
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**
** This file is part of Qt Creator.
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** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
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#include "clangpchmanagerplugin.h"

#include "pchmanagerconnectionclient.h"
#include "pchmanagerclient.h"
#include "progressmanager.h"
#include "qtcreatorprojectupdater.h"

#include <filepathcaching.h>
#include <refactoringdatabaseinitializer.h>
#include <sqlitedatabase.h>

#include <coreplugin/icore.h>
#include <coreplugin/progressmanager/progressmanager.h>
#include <extensionsystem/pluginmanager.h>

#include <utils/hostosinfo.h>

#include <QFutureInterface>

#include <chrono>

using namespace std::chrono_literals;

namespace ClangPchManager {

namespace {

QString backendProcessPath()
{
    return Core::ICore::libexecPath()
            + QStringLiteral("/clangpchmanagerbackend")
            + QStringLiteral(QTC_HOST_EXE_SUFFIX);
}

} // anonymous namespace

class ClangPchManagerPluginData
{
public:
    Sqlite::Database database{Utils::PathString{Core::ICore::userResourcePath() + "/symbol-experimental-v1.db"}, 1000ms};
    ClangBackEnd::RefactoringDatabaseInitializer<Sqlite::Database> databaseInitializer{database};
    ClangBackEnd::FilePathCaching filePathCache{database};
    ClangPchManager::ProgressManager progressManager{
        [] (QFutureInterface<void> &promise) {
            auto title = QCoreApplication::translate("ClangPchProgressManager", "Creating PCHs", "PCH stands for precompiled header");
            Core::ProgressManager::addTask(promise.future(), title, "pch creation", nullptr);
    }};
    PchManagerClient pchManagerClient{progressManager};
    PchManagerConnectionClient connectionClient{&pchManagerClient};
    QtCreatorProjectUpdater<PchManagerProjectUpdater> projectUpdate{connectionClient.serverProxy(),
                                                                    pchManagerClient,
                                                                    filePathCache};
};

std::unique_ptr<ClangPchManagerPluginData> ClangPchManagerPlugin::d;

ClangPchManagerPlugin::ClangPchManagerPlugin() = default;
ClangPchManagerPlugin::~ClangPchManagerPlugin() = default;

bool ClangPchManagerPlugin::initialize(const QStringList & /*arguments*/, QString * /*errorMessage*/)
{
    d = std::make_unique<ClangPchManagerPluginData>();

    startBackend();

    return true;
}

void ClangPchManagerPlugin::extensionsInitialized()
{
}

ExtensionSystem::IPlugin::ShutdownFlag ClangPchManagerPlugin::aboutToShutdown()
{
    d->connectionClient.finishProcess();

    d.reset();

    return SynchronousShutdown;
}

void ClangPchManagerPlugin::startBackend()
{
    d->pchManagerClient.setConnectionClient(&d->connectionClient);

    d->connectionClient.setProcessPath(backendProcessPath());

    d->connectionClient.startProcessAndConnectToServerAsynchronously();
}


PchManagerClient &ClangPchManagerPlugin::pchManagerClient()
{
    return d->pchManagerClient;
}

} // namespace ClangRefactoring