// SPDX-FileCopyrightText: 2003 Dominique Devriese <devriese@kde.org>
// SPDX-FileCopyrightText: 2005-2006 Pino Toscano <toscano.pino@tiscali.it>

// SPDX-License-Identifier: GPL-2.0-or-later

#include "newscriptwizard.h"

#include "script_mode.h"

#include <QFontDatabase>
#include <QLabel>
#include <QTextEdit>
#include <QVBoxLayout>

#include <KHelpClient>
#include <KIconEngine>

#include <KTextEditor/ConfigInterface>
#include <KTextEditor/Document>
#include <KTextEditor/Editor>
#include <KTextEditor/View>

#include <assert.h>

static const int IntroPageId = 1;
static const int CodePageId = 2;

NewScriptWizard::~NewScriptWizard()
{
    if (!document) {
        delete textedit;
    } else {
        delete document;
    }
}

NewScriptWizard::NewScriptWizard(QWidget *parent, ScriptModeBase *mode, KIconLoader *il)
    : QWizard(parent)
    , mmode(mode)
    , textedit(0)
    , document(0)
    , docview(0)
    , mIconLoader(il)
{
    setObjectName(QStringLiteral("New Script Wizard"));
    setWindowTitle(i18nc("@title:window", "New Script"));
    setOption(HaveHelpButton);

    QWizardPage *firstPage = new QWizardPage(this);
    firstPage->setTitle(i18n("Select Arguments"));
    firstPage->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
    QVBoxLayout *lay1 = new QVBoxLayout(firstPage);
    lay1->setContentsMargins(0, 0, 0, 0);
    QLabel *infoText = new QLabel(firstPage);
    lay1->addWidget(infoText);
    infoText->setText(
        i18n("Select the argument objects (if any)\n"
             "in the Kig window and press \"Next\"."));
    infoText->setAlignment(Qt::AlignHCenter | Qt::AlignVCenter);
    setPage(IntroPageId, firstPage);

    QWizardPage *secondPage = new QWizardPage(this);
    secondPage->setTitle(i18n("Enter Code"));
    secondPage->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
    secondPage->setFinalPage(true);
    QVBoxLayout *lay2 = new QVBoxLayout(secondPage);
    lay2->setContentsMargins(0, 0, 0, 0);
    mLabelFillCode = new QLabel(secondPage);
    lay2->addWidget(mLabelFillCode);
    setPage(CodePageId, secondPage);

    KTextEditor::Editor *editor = KTextEditor::Editor::instance();
    qDebug() << "EDITOR: " << editor;

    if (!editor) {
        // there is no KDE textditor component installed, so we'll use a
        // simplier KTextEdit
        textedit = new QTextEdit(secondPage);
        textedit->setObjectName(QStringLiteral("textedit"));
        textedit->setFont(QFontDatabase::systemFont(QFontDatabase::FixedFont));
        textedit->setAcceptRichText(false);
        lay2->addWidget(textedit);
    } else {
        document = editor->createDocument(0);
        // creating the 'view', that is what the user see and interact with
        docview = document->createView(secondPage);

        lay2->addWidget(docview);

        // displaying the left border with line numbers
        KTextEditor::ConfigInterface *cfgiface = qobject_cast<KTextEditor::ConfigInterface *>(docview);
        if (cfgiface) {
            cfgiface->setConfigValue(QStringLiteral("line-numbers"), true);
        }

        // creating the popup menu
        QMenu *menu = docview->defaultContextMenu();

        // finally, we install the popup menu
        docview->setContextMenu(menu);
    }

    connect(this, SIGNAL(currentIdChanged(int)), this, SLOT(currentIdChanged(int)));
    connect(this, &QWizard::helpRequested, this, &NewScriptWizard::slotHelpClicked);
}

void NewScriptWizard::currentIdChanged(int id)
{
    switch (id) {
    case IntroPageId:
        mmode->argsPageEntered();
        break;
    case CodePageId:
        mmode->codePageEntered();
        if (!document) {
            textedit->setFocus();
        } else {
            docview->setFocus();
        }
        break;
    case -1: // no id - skip it
        break;
    default:
        assert(false);
    }
}

void NewScriptWizard::reject()
{
    if (mmode->queryCancel())
        QWizard::reject();
}

void NewScriptWizard::accept()
{
    if (mmode->queryFinish())
        QWizard::accept();
}

void NewScriptWizard::slotHelpClicked()
{
    KHelpClient::invokeHelp(QStringLiteral("scripting"), QStringLiteral("kig"));
}

void NewScriptWizard::setText(const QString &text)
{
    if (!document) {
        textedit->setPlainText(text);
    } else {
        document->setText(text);
    }
}

QString NewScriptWizard::text() const
{
    if (!document) {
        return textedit->toPlainText();
    } else {
        return document->text();
    }
}

void NewScriptWizard::setType(ScriptType::Type type)
{
    mLabelFillCode->setText(ScriptType::fillCodeStatement(type));
    QIcon scriptIcon(new KIconEngine(ScriptType::icon(type), mIconLoader));
    if (type != ScriptType::Unknown) {
        setWindowIcon(scriptIcon);
    }
    setPixmap(LogoPixmap, scriptIcon.pixmap(64, 64));

    if (document) {
        // setting the highlight mode
        document->setMode(ScriptType::highlightStyle(type));
    }
}

#include "moc_newscriptwizard.cpp"
