#include "permissionservice.h"
#include "service.h"
#include <QCryptographicHash>

QList<QSharedPointer<Permission> > PermissionService::forPlugin(const QString &pluginId)
{
    /*Transaction tr;
    odb::database *db = Context::instance().db();
    permQuery q(permQuery::pluginId == pluginId);
    permResult result = db->query<Permission>(q);

    QList<QSharedPointer<Permission> > ret;
    for (permResult::iterator it = result.begin(); it != result.end(); it++)
    {
        ret.append(it.load());
    }

    tr.commit();
    return ret;*/
    return {};
}

QSharedPointer<Permission> PermissionService::forNameAndPlugin(const QString &name, const QString &pluginId)
{
    qx::QxSqlQuery q;
    q.where("permissionName").isEqualTo(name)
        .and_("pluginId").isEqualTo(pluginId);

    QList<QSharedPointer<Permission>> ret;
    auto err = qx::dao::fetch_by_query(q, ret);

    if (err.isValid()) {
        qDebug() << err.text();
        // ToDo - log error
    }

    return ret.count() > 0 ? ret[0] : QSharedPointer<Permission>();
}

bool PermissionService::checkLogin(const QString &login, const QString &password)
{

    QSharedPointer<User> user = loadUser(login);
    if (user.data())
    {
        return user->password() == encryptPassword(password) && user->active();
    }

    return false;
}

QSharedPointer<User> PermissionService::loadUser(const QString &login)
{
    Service<User> srvUser;
    auto admin = srvUser.all("login = '" + login + "'");

    if (admin.count() == 1) {
        Service<Role> srvRole;
        for (auto& role : admin[0]->listRoles()) {
            srvRole.load(role);
        }
        return admin[0];
    }

    return {};
}

void PermissionService::checkForAdmin()
{
    Service<User> srvUser;
    auto admUser = srvUser.all("isAdmin = 1");

    if (admUser.isEmpty())
    {
        QSharedPointer<User> admin(new User);
        admin->setLogin("admin");
        admin->setName("Administrator");
        admin->setIsAdmin(true);
        admin->setPassword(encryptPassword("admin"));
        admin->setActive(true);

        srvUser.save(admin);
    }
}

QString PermissionService::encryptPassword(const QString &plainPasswd)
{
    return QString(QCryptographicHash::hash(plainPasswd.toUtf8(),QCryptographicHash::Sha256).toBase64());
}