/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt Creator.
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
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****************************************************************************/

#include <QCommandLineParser>
#include <QCoreApplication>
#include <QLoggingCategory>
#include <QApplication>
#include <QDir>

#include <connectionserver.h>
#include <filepathcaching.h>
#include <generatedfiles.h>
#include <refactoringserver.h>
#include <refactoringclientproxy.h>
#include <symbolindexing.h>

#include <sqliteexception.h>

#include <chrono>

using namespace std::chrono_literals;

using ClangBackEnd::FilePathCaching;
using ClangBackEnd::GeneratedFiles;
using ClangBackEnd::RefactoringClientProxy;
using ClangBackEnd::RefactoringServer;
using ClangBackEnd::RefactoringDatabaseInitializer;
using ClangBackEnd::ConnectionServer;
using ClangBackEnd::SymbolIndexing;

QStringList processArguments(QCoreApplication &application)
{
    QCommandLineParser parser;
    parser.setApplicationDescription(QStringLiteral("Qt Creator Clang Refactoring Backend"));
    parser.addHelpOption();
    parser.addVersionOption();
    parser.addPositionalArgument(QStringLiteral("connection"), QStringLiteral("Connection"));

    parser.process(application);

    if (parser.positionalArguments().isEmpty())
        parser.showHelp(1);

    return parser.positionalArguments();
}

class RefactoringApplication : public QCoreApplication
{
public:
    using QCoreApplication::QCoreApplication;

    bool notify(QObject *object, QEvent *event) override
    {
        try {
            return QCoreApplication::notify(object, event);
        } catch (Sqlite::Exception &exception) {
            exception.printWarning();
        }

        return false;
    }
};

struct Data // because we have a cycle dependency
{
    Data(const QString &databasePath)
        : database{Utils::PathString{databasePath}, 100000ms}
    {}

    Sqlite::Database database;
    RefactoringDatabaseInitializer<Sqlite::Database> databaseInitializer{database};
    FilePathCaching filePathCache{database};
    GeneratedFiles generatedFiles;
    SymbolIndexing symbolIndexing{database, filePathCache, generatedFiles, [&] (int progress, int total) { clangCodeModelServer.setProgress(progress, total); }};
    RefactoringServer clangCodeModelServer{symbolIndexing, filePathCache, generatedFiles};
};

int main(int argc, char *argv[])
{
    try {
        QCoreApplication::setOrganizationName(QStringLiteral("QtProject"));
        QCoreApplication::setOrganizationDomain(QStringLiteral("qt-project.org"));
        QCoreApplication::setApplicationName(QStringLiteral("ClangRefactoringBackend"));
        QCoreApplication::setApplicationVersion(QStringLiteral("0.1.0"));

        RefactoringApplication application(argc, argv);

        const QStringList arguments = processArguments(application);
        const QString connectionName = arguments[0];
        const QString databasePath = arguments[1];

        Data data{databasePath};

        ConnectionServer<RefactoringServer, RefactoringClientProxy> connectionServer;
        connectionServer.setServer(&data.clangCodeModelServer);
        connectionServer.start(connectionName);

        return application.exec();
    } catch (const Sqlite::Exception &exception) {
        exception.printWarning();
    }
}