#include "./alpmpackage.h"
#include "./alpmdatabase.h"
#include "./utilities.h"

#include <KTar>
#include <KArchiveDirectory>
#include <KArchiveFile>

#include <QFileInfo>

using namespace ChronoUtilities;

namespace RepoIndex {

/*!
 * \brief The AlpmPackage class wraps an ALPM package struct and holds additional meta information.
 */

/*!
 * \brief Constructs an empty ALPM package for the specified \a repository.
 * \remarks This constructor is called by the AlpmDatabase class which puts the package name and
 *          available meta data via the Package::putDescription() method.
 */
AlpmPackage::AlpmPackage(AlpmDatabase *repository) :
    Package(QString(), repository)
{}

AlpmPackage::AlpmPackage(const QString &packageFilePath) :
    Package(QString(), nullptr)
{
    m_origin = PackageOrigin::File;
    m_name = m_fileName = QFileInfo(packageFilePath).fileName();
    Utilities::stripVersion(m_name);
    KTar pkgTar(packageFilePath);
    const KArchiveDirectory *mainDir;
    if(pkgTar.open(QIODevice::ReadOnly) && (mainDir = pkgTar.directory())) {
        if(const KArchiveEntry *pkgInfoEntry = mainDir->entry(QStringLiteral(".PKGINFO"))) {
            if(pkgInfoEntry->isFile()) {
                // parse fields
                QList<QPair<QString, QString> > packageInfo;
                AlpmDatabase::parsePkgInfo(static_cast<const KArchiveFile *>(pkgInfoEntry)->data(), m_name, packageInfo);
                putInfo(QList<QPair<QString, QString> >(), packageInfo, true);
            } else {
                // TODO: handle error (.PKGINFO is not a file)
            }
        }
    } else {
        // TODO: handle error (can't open package file)
    }
}

} // namespace PackageManagement