/* SPDX-FileCopyrightText: 2026 Project Tick
 * SPDX-FileContributor: Project Tick
 * SPDX-License-Identifier: GPL-3.0-or-later
 *
 *   MeshMC - A Custom Launcher for Minecraft
 *   Copyright (C) 2026 Project Tick
 *
 *   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 3 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, see <https://www.gnu.org/licenses/>.
 */

#include "JavaCommon.h"
#include "ui/dialogs/CustomMessageBox.h"
#include <MMCStrings.h>
#include <QRegularExpression>

bool JavaCommon::checkJVMArgs(QString jvmargs, QWidget *parent)
{
    if (jvmargs.contains("-XX:PermSize=") || jvmargs.contains(QRegularExpression("-Xm[sx]"))
        || jvmargs.contains("-XX-MaxHeapSize") || jvmargs.contains("-XX:InitialHeapSize"))
    {
        auto warnStr = QObject::tr(
            "You tried to manually set a JVM memory option (using \"-XX:PermSize\", \"-XX-MaxHeapSize\", \"-XX:InitialHeapSize\",  \"-Xmx\" or \"-Xms\").\n"
            "There are dedicated boxes for these in the settings (Java tab, in the Memory group at the top).\n"
            "This message will be displayed until you remove them from the JVM arguments.");
        CustomMessageBox::selectable(
            parent, QObject::tr("JVM arguments warning"),
            warnStr,
            QMessageBox::Warning)->exec();
        return false;
    }
    return true;
}

void JavaCommon::javaWasOk(QWidget *parent, JavaCheckResult result)
{
    QString text;
    text += QObject::tr("Java test succeeded!<br />Platform reported: %1<br />Java version "
        "reported: %2<br />Java vendor "
        "reported: %3<br />").arg(result.realPlatform, result.javaVersion.toString(), result.javaVendor);
    if (result.errorLog.size())
    {
        auto htmlError = result.errorLog;
        htmlError.replace('\n', "<br />");
        text += QObject::tr("<br />Warnings:<br /><font color=\"orange\">%1</font>").arg(htmlError);
    }
    CustomMessageBox::selectable(parent, QObject::tr("Java test success"), text, QMessageBox::Information)->show();
}

void JavaCommon::javaArgsWereBad(QWidget *parent, JavaCheckResult result)
{
    auto htmlError = result.errorLog;
    QString text;
    htmlError.replace('\n', "<br />");
    text += QObject::tr("The specified java binary didn't work with the arguments you provided:<br />");
    text += QString("<font color=\"red\">%1</font>").arg(htmlError);
    CustomMessageBox::selectable(parent, QObject::tr("Java test failure"), text, QMessageBox::Warning)->show();
}

void JavaCommon::javaBinaryWasBad(QWidget *parent, JavaCheckResult result)
{
    QString text;
    text += QObject::tr(
        "The specified java binary didn't work.<br />You should use the auto-detect feature, "
        "or set the path to the java executable.<br />");
    CustomMessageBox::selectable(parent, QObject::tr("Java test failure"), text, QMessageBox::Warning)->show();
}

void JavaCommon::TestCheck::run()
{
    if (!JavaCommon::checkJVMArgs(m_args, m_parent))
    {
        emit finished();
        return;
    }
    checker.reset(new JavaChecker());
    connect(checker.get(), SIGNAL(checkFinished(JavaCheckResult)), this,
            SLOT(checkFinished(JavaCheckResult)));
    checker->m_path = m_path;
    checker->performCheck();
}

void JavaCommon::TestCheck::checkFinished(JavaCheckResult result)
{
    if (result.validity != JavaCheckResult::Validity::Valid)
    {
        javaBinaryWasBad(m_parent, result);
        emit finished();
        return;
    }
    checker.reset(new JavaChecker());
    connect(checker.get(), SIGNAL(checkFinished(JavaCheckResult)), this,
            SLOT(checkFinishedWithArgs(JavaCheckResult)));
    checker->m_path = m_path;
    checker->m_args = m_args;
    checker->m_minMem = m_minMem;
    checker->m_maxMem = m_maxMem;
    if (result.javaVersion.requiresPermGen())
    {
        checker->m_permGen = m_permGen;
    }
    checker->performCheck();
}

void JavaCommon::TestCheck::checkFinishedWithArgs(JavaCheckResult result)
{
    if (result.validity == JavaCheckResult::Validity::Valid)
    {
        javaWasOk(m_parent, result);
        emit finished();
        return;
    }
    javaArgsWereBad(m_parent, result);
    emit finished();
}