/*
 * Copyright 2008 Ben Boeckel <MathStuf@gmail.com>
 * 
 * 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 <http://www.gnu.org/licenses/>.
 */

// Header include
#include "ScriptWidget.h"

// KDE includes
#include <KActionCollection>
#include <KStandardAction>
#include <KMessageBox>
#include <KTextEditor/Document>
#include <KTextEditor/Editor>
#include <KTextEditor/EditorChooser>
#include <KTextEditor/View>

Pokemodr::ScriptWidget::ScriptWidget(QWidget* parent, const Pokemod::Script& value) :
        QWidget(parent),
        m_value(value),
        m_document(NULL)
{
    setupUi(this);
    QMap<QString, QString> languages;
    languages["C#"] = "mono";
    languages["Falcon"] = "falcon"; // No highlight rules yet
    languages["Java"] = "java";
    languages["JavaScript"] = "kjs";
    languages["Lua"] = "lua";
    languages["PHP"] = "php";
    languages["Python"] = "python";
    languages["Ruby"] = "ruby";
    QList<QString> langs = languages.keys();
    foreach (QString language, langs)
        varInterpreter->addItem(language, languages[language]);
    KTextEditor::Editor* editor = KTextEditor::EditorChooser::editor();
    if (!editor)
    {
        KMessageBox::error(this, "A KDE text-editor component could not be found;\nplease check your KDE installation.");
        Q_ASSERT(false);
    }
    m_document = editor->createDocument(NULL);
    m_view = m_document->createView(NULL);
    m_view->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Expanding);
    m_view->setMinimumHeight(300);
    // FIXME: KatePart bug here?
    // Stop colliding shortcuts from KateView
    m_view->action(KStandardAction::name(KStandardAction::Cut))->setShortcuts(QKeySequence::UnknownKey);
    m_view->action(KStandardAction::name(KStandardAction::Copy))->setShortcuts(QKeySequence::UnknownKey);
    m_view->action(KStandardAction::name(KStandardAction::PasteText))->setShortcuts(QKeySequence::UnknownKey);
    // FIXME: Uncomment to get copy/paste to work in KatePart (KDE 4.1)
//     QList<KActionCollection*> collections = KActionCollection::allCollections();
//     foreach (KActionCollection* collection, collections)
//     {
//         // FIXME: Nothing else should have a Preferences action right?
//         if (collection->action(KStandardAction::name(KStandardAction::Preferences)))
//         {
//             // TODO: Works like crap since it doesnt check to see if the widget is focused
//             connect(collection->action(KStandardAction::name(KStandardAction::Cut)), SIGNAL(triggered()), m_view->action(KStandardAction::name(KStandardAction::Cut)), SIGNAL(triggered()));
//             connect(collection->action(KStandardAction::name(KStandardAction::Copy)), SIGNAL(triggered()), m_view->action(KStandardAction::name(KStandardAction::Copy)), SIGNAL(triggered()));
//             connect(collection->action(KStandardAction::name(KStandardAction::PasteText)), SIGNAL(triggered()), m_view->action(KStandardAction::name(KStandardAction::PasteText)), SIGNAL(triggered()));
//             break;
//         }
//     }
    layoutScript->addWidget(m_view);
    connect(m_document, SIGNAL(textChanged(KTextEditor::Document*)), this, SLOT(scriptChanged()));
    connect(this, SIGNAL(valueChanged(Pokemod::Fraction)), SLOT(setGui()));
    setGui();
}

Pokemodr::ScriptWidget::~ScriptWidget()
{
    delete m_document;
}

Pokemod::Script Pokemodr::ScriptWidget::value() const
{
    return m_value;
}

void Pokemodr::ScriptWidget::setGui()
{
    varInterpreter->setCurrentIndex(varInterpreter->findData(m_value.interpreter()));
    m_document->setHighlightingMode(varInterpreter->currentText());
    KTextEditor::Cursor cursor = m_view->cursorPosition();
    m_document->setText(m_value.script());
    m_view->setCursorPosition(cursor);
}

void Pokemodr::ScriptWidget::setValue(const Pokemod::Script& value)
{
    if (m_value == value)
        return;
    m_value = value;
    emit(valueChanged(m_value));
}

void Pokemodr::ScriptWidget::on_varInterpreter_activated()
{
    m_value.setInterpreter(varInterpreter->itemData(varInterpreter->currentIndex()).toString());
    m_document->setHighlightingMode(varInterpreter->currentText());
    emit(valueChanged(m_value));
}

void Pokemodr::ScriptWidget::scriptChanged()
{
    m_value.setScript(m_document->text());
    emit(valueChanged(m_value));
}