joincommandlinebuilder.cpp

//------------------------------------------------------------------------------
// joincommandlinebuilder.cpp
//------------------------------------------------------------------------------
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// This library 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
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
// 02110-1301  USA
//
//------------------------------------------------------------------------------
// Copyright (C) 2014 "Zalewa" <zalewapl@gmail.com>
//------------------------------------------------------------------------------
#include "joincommandlinebuilder.h"

#include "application.h"
#include "apprunner.h"
#include "configuration/doomseekerconfig.h"
#include "datapaths.h"
#include "gamedemo.h"
#include "gui/passworddlg.h"
#include "gui/wadseekerinterface.h"
#include "gui/wadseekershow.h"
#include "ini/settingsproviderqt.h"
#include "log.h"
#include "plugins/engineplugin.h"
#include "serverapi/exefile.h"
#include "serverapi/gameclientrunner.h"
#include "serverapi/message.h"
#include "serverapi/server.h"

#include <cassert>
#include <QDialogButtonBox>
#include <QGridLayout>
#include <QLabel>
#include <QListWidget>
#include <QMessageBox>
#include <wadseeker/wadseeker.h>

DClass<JoinCommandLineBuilder>
{
public:
        CommandLineInfo cli;
        bool configurationError;
        QString connectPassword;
        QString error;
        GameDemo demo;
        QString demoName;
        QString inGamePassword;
        ServerPtr server;
        QWidget *parentWidget;
        bool passwordsAlreadySet;

        // For missing wads dialog
        QDialogButtonBox *buttonBox;
        QDialogButtonBox::StandardButton lastButtonClicked;
};

DPointered(JoinCommandLineBuilder)

JoinCommandLineBuilder::JoinCommandLineBuilder(ServerPtr server,
        GameDemo demo, QWidget *parentWidget)
{
        d->configurationError = false;
        d->demo = demo;
        d->demoName = GameDemo::mkDemoFullPath(demo, *server->plugin());
        d->parentWidget = parentWidget;
        d->passwordsAlreadySet = false;
        d->server = server;
}

JoinCommandLineBuilder::~JoinCommandLineBuilder()
{
}

bool JoinCommandLineBuilder::buildServerConnectParams(ServerConnectParams &params)
{
        if (d->server->isLockedAnywhere())
        {
                if (!d->passwordsAlreadySet)
                {
                        PasswordDlg password(d->server);
                        int ret = password.exec();
                        if (ret != QDialog::Accepted)
                        {
                                return false;
                        }
                        d->connectPassword = password.connectPassword();
                        d->inGamePassword = password.inGamePassword();
                        d->passwordsAlreadySet = true;
                }
                params.setConnectPassword(d->connectPassword);
                params.setInGamePassword(d->inGamePassword);
        }

        if (!d->demoName.isEmpty())
        {
                params.setDemoName(d->demoName);
        }
        return true;
}

const CommandLineInfo &JoinCommandLineBuilder::builtCommandLine() const
{
        return d->cli;
}

bool JoinCommandLineBuilder::checkServerStatus()
{
        // Remember to check REFRESHING status first!
        if (d->server->isRefreshing())
        {
                d->error = tr("This server is still refreshing.\nPlease wait until it is finished.");
                gLog << tr("Attempted to obtain a join command line for a \"%1\" "
                                "server that is under refresh.").arg(d->server->addressWithPort());
                return false;
        }
        // Fail if Doomseeker couldn't get data on this server.
        else if (!d->server->isKnown())
        {
                d->error = tr("Data for this server is not available.\nOperation failed.");
                gLog << tr("Attempted to obtain a join command line for an unknown server \"%1\"").arg(
                                d->server->addressWithPort());
                return false;
        }
        return true;
}

bool JoinCommandLineBuilder::checkWadseekerValidity(QWidget *parent)
{
        Q_UNUSED(parent);
        QString targetDirPath = gConfig.wadseeker.targetDirectory;
        QDir targetDir(targetDirPath);
        QFileInfo targetDirFileInfo(targetDirPath);

        if (targetDirPath.isEmpty() || !targetDir.exists() || !targetDirFileInfo.isWritable())
        {
                return false;
        }

        return true;
}

const QString &JoinCommandLineBuilder::error() const
{
        return d->error;
}

void JoinCommandLineBuilder::failBuild()
{
        d->cli = CommandLineInfo();
        emit commandLineBuildFinished();
}

void JoinCommandLineBuilder::handleError(const JoinError &error)
{
        if (!error.error().isEmpty())
        {
                d->error = error.error();
        }
        else
        {
                d->error = tr("Unknown error.");
        }
        d->configurationError = (error.type() == JoinError::ConfigurationError);

        gLog << tr("Error when obtaining join parameters for server "
                        "\"%1\", game \"%2\": %3").arg(d->server->name()).arg(
                        d->server->engineName()).arg(d->error);
}

MissingWadsDialog::MissingWadsProceed JoinCommandLineBuilder::handleMissingWads(const JoinError &error)
{
        QList<PWad> missingWads;
        if (!error.missingIwad().isEmpty())
        {
                missingWads << error.missingIwad();
        }
        if (!error.missingWads().isEmpty())
        {
                missingWads << error.missingWads();
        }

        MissingWadsDialog dialog(missingWads, error.incompatibleWads(), d->server->plugin(), d->parentWidget);
        if (dialog.exec() == QDialog::Accepted)
        {
                if (dialog.decision() == MissingWadsDialog::Install)
                {
                        if (!gWadseekerShow->checkWadseekerValidity(d->parentWidget))
                        {
                                return MissingWadsDialog::Cancel;
                        }
                        WadseekerInterface *wadseeker = WadseekerInterface::create(d->server);
                        this->connect(wadseeker, SIGNAL(finished(int)), SLOT(onWadseekerDone(int)));
                        wadseeker->setWads(dialog.filesToDownload());
                        wadseeker->setAttribute(Qt::WA_DeleteOnClose);
                        wadseeker->show();
                }
        }
        return dialog.decision();
}

bool JoinCommandLineBuilder::isConfigurationError() const
{
        return d->configurationError;
}

void JoinCommandLineBuilder::missingWadsClicked(QAbstractButton *button)
{
        d->lastButtonClicked = d->buttonBox->standardButton(button);
}

void JoinCommandLineBuilder::obtainJoinCommandLine()
{
        assert(d->server != nullptr);
        d->cli = CommandLineInfo();

        if (!checkServerStatus())
        {
                failBuild();
                return;
        }

        ServerConnectParams params;
        if (!buildServerConnectParams(params))
        {
                failBuild();
                return;
        }
        GameClientRunner *gameRunner = d->server->gameRunner();
        JoinError joinError = gameRunner->createJoinCommandLine(d->cli, params);
        delete gameRunner;

        switch (joinError.type())
        {
        case JoinError::Terminate:
                failBuild();
                return;
        case JoinError::ConfigurationError:
        case JoinError::Critical:
        {
                handleError(joinError);
                failBuild();
                return;
        }

        case JoinError::CanAutomaticallyInstallGame:
        {
                if (tryToInstallGame())
                {
                        obtainJoinCommandLine();
                }
                else
                {
                        failBuild();
                }
                return;
        }

        case JoinError::MissingWads:
        {
                MissingWadsDialog::MissingWadsProceed proceed =
                        handleMissingWads(joinError);
                switch (proceed)
                {
                case MissingWadsDialog::Cancel:
                        failBuild();
                        return;
                case MissingWadsDialog::Ignore:
                        break;
                case MissingWadsDialog::Install:
                        // async process; will call slot
                        return;
                default:
                        gLog << "Bug: not sure how to proceed after \"MissingWads\".";
                        failBuild();
                        return;
                }
                [[gnu::fallthrough]];
        }

        case JoinError::NoError:
                if (d->demo == GameDemo::Managed)
                {
                        GameDemo::saveDemoMetaData(d->demoName, *d->server->plugin(),
                                d->server->iwad(), d->server->wads());
                }
                break;

        default:
                gLog << "JoinCommandLineBuilder - unhandled JoinError type!";
                break;
        }

        emit commandLineBuildFinished();
}

void JoinCommandLineBuilder::onWadseekerDone(int result)
{
        if (result == QDialog::Accepted)
        {
                obtainJoinCommandLine();
        }
        else
        {
                failBuild();
        }
}

ServerPtr JoinCommandLineBuilder::server() const
{
        return d->server;
}

void JoinCommandLineBuilder::setPasswords(const QString &connectPassword, const QString &inGamePassword)
{
        d->passwordsAlreadySet = !(connectPassword.isNull() && inGamePassword.isNull());
        if (!connectPassword.isNull())
                d->connectPassword = connectPassword;
        if (!inGamePassword.isNull())
                d->inGamePassword = inGamePassword;
}

bool JoinCommandLineBuilder::tryToInstallGame()
{
        Message message = d->server->clientExe()->install(gApp->mainWindowAsQWidget());
        if (message.isError())
        {
                QMessageBox::critical(gApp->mainWindowAsQWidget(), tr("Game installation failure"),
                        message.contents(), QMessageBox::Ok);
        }
        return message.type() == Message::Type::SUCCESSFUL;
}