/*
 * This file is part of Remote Support Desktop
 * https://gitlab.das-netzwerkteam.de/RemoteWebApp/rwa.support.desktopapp
 * Copyright 2021 Daniel Teichmann <daniel.teichmann@das-netzwerkteam.de>
 * SPDX-License-Identifier: GPL-2.0-or-later
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the
 * Free Software Foundation, Inc.,
 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */

#include "add_server_wizard.h"
#include "../../RWADBusAdaptor.h"
#include "../../RWAHost.h"

Add_Server_wizard::Add_Server_wizard(QObject *parent, MainQMLAdaptor *main_gui) : QObject(parent) {
    Q_ASSERT(main_gui != nullptr);

    _dbus_api = new DBusAPI();
    _main_gui = main_gui;

    // _dbus_api --serviceAddWebAppHostResponse-> this.add_web_app_host_response()
    QObject::connect(_dbus_api,
                     SIGNAL(serviceAddWebAppHostResponse(QJsonDocument*)),
                     this,
                     SLOT(add_web_app_host_response(QJsonDocument*)));
}

void Add_Server_wizard::processStep1(QString host_url) {
    qDebug() << "Processing Step 1 with args: " << host_url;

    if(host_url == "") {
        emit step1Failed(tr("This field can't be empty!"));
        return;
    }

    return add_server(host_url);
}

void Add_Server_wizard::processStep2() {
    qDebug() << "Processing Step 2 with args: No Args.";
    emit step2Failed(tr("The features you expected here are not yet implemented."));
    // Just show placeholder scene now.
    emit step2Success();
}

void Add_Server_wizard::add_server(QString host_url) {
    _dbus_api->add_web_app_host_request(host_url);
}

void Add_Server_wizard::add_web_app_host_response(QJsonDocument *doc) {
    // Get the QJsonObject
    QJsonObject jObject = doc->object();
    QVariantMap mainMap = jObject.toVariantMap();

    // Status of request
    QString request_status = mainMap["status"].toString();
    if (request_status == "success") {
        // Building host_object
        QJsonObject host_object = jObject.value(QString("host")).toObject();

        QString host_uuid  = host_object["uuid"].toString();
        QString host_alias = host_object["alias"].toString();
        QString host_url   = host_object["url"].toString();

        if (host_url == "" || host_uuid == "") {
            // This two values are required and can't be omitted.
            QString reason = tr("Response of D-Bus service lacks necessary host object.");
            qCritical().noquote() << tr("An error occured while adding a new host:")
                                  << reason;
            emit step1Failed(reason);

            return;
        }

        if (host_alias == "") {
            qDebug().noquote() << QString("An alias for the host wasn't delivered "
                                          "so just use '%0' as alias.").arg(host_url);
            host_alias = host_url;
        }

        // Now built RWAHost object.
        QScopedPointer<RWAHost> rwa_host (new RWAHost(host_uuid, host_alias, host_url));
        _main_gui->addRWAHost(rwa_host.data());

        qInfo() << "Successfully added a new RWAHost.";
        emit step1Success();
    } else {
        qCritical().noquote() << tr("An error occured while adding a new host!");

        QString reason = tr("An error occured while adding a new host!");
        QString type = mainMap["type"].toString();
        if(type == "connection"){
            reason = tr("Couldn't connect to the specified host!");
            qCritical().noquote() << reason;
        } else if (type == "duplicate") {
            reason = tr("The specified host was already added!");
            qCritical().noquote() << reason;
        } else if (type == "invalid_url") {
            reason = tr("The specified host address is not valid!");
            qCritical().noquote() << reason;
        }
        emit step1Failed(reason);

        return;
    }
}