// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0

#pragma once

#include "qmljseditor_global.h"

#include <qmljs/parser/qmljsast_p.h>
#include <qmljs/qmljsscanner.h>
#include <qmljstools/qmljssemanticinfo.h>
#include <texteditor/texteditor.h>
#include <texteditor/quickfix.h>
#include <texteditor/texteditorconstants.h>
#include <utils/uncommentselection.h>

#include <QModelIndex>
#include <QTimer>

QT_BEGIN_NAMESPACE
class QComboBox;
QT_END_NAMESPACE

namespace QmlJS { class ModelManagerInterface; }

namespace QmlJSEditor {

class QmlJSEditorDocument;
class QuickToolBar;
class FindReferences;

class QMLJSEDITOR_EXPORT QmlJSEditorWidget : public TextEditor::TextEditorWidget
{
    Q_OBJECT

public:
    QmlJSEditorWidget();

    void finalizeInitialization() override;
    void restoreState(const QByteArray &state) override;

    QmlJSEditorDocument *qmlJsEditorDocument() const;

    QModelIndex outlineModelIndex();
    void updateOutlineIndexNow();
    bool isOutlineCursorChangesBlocked();

    std::unique_ptr<TextEditor::AssistInterface> createAssistInterface(
        TextEditor::AssistKind assistKind, TextEditor::AssistReason reason) const override;

    void inspectElementUnderCursor() const;

    void findUsages() override;
    void renameSymbolUnderCursor() override;
    void showContextPane();

signals:
    void outlineModelIndexChanged(const QModelIndex &index);
    void selectedElementsChanged(QList<QmlJS::AST::UiObjectMember*> offsets,
                                 const QString &wordAtCursor);
private:
    void updateModificationChange(bool);

    void jumpToOutlineElement(int index);
    void updateContextPane();
    void showTextMarker();

    void updateUses();

    void semanticInfoUpdated(const QmlJSTools::SemanticInfo &semanticInfo);

    void updateCodeWarnings(QmlJS::Document::Ptr doc);
    void foldAuxiliaryData();

protected:
    void contextMenuEvent(QContextMenuEvent *e) override;
    bool event(QEvent *e) override;
    void wheelEvent(QWheelEvent *event) override;
    void resizeEvent(QResizeEvent *event) override;
    void scrollContentsBy(int dx, int dy) override;
    void applyFontSettings() override;
    void createToolBar();
    void findLinkAt(const QTextCursor &cursor,
                    const Utils::LinkHandler &processLinkCallback,
                    bool resolveTarget = true,
                    bool inNextSplit = false) override;
    QString foldReplacementText(const QTextBlock &block) const override;

private:
    void setSelectedElements();
    QString wordUnderCursor() const;

    QModelIndex indexForPosition(unsigned cursorPosition, const QModelIndex &rootIndex = QModelIndex()) const;
    bool hideContextPane();

    QmlJSEditorDocument *m_qmlJsEditorDocument = nullptr;
    QTimer m_updateUsesTimer; // to wait for multiple text cursor position changes
    QTimer m_updateOutlineIndexTimer;
    QTimer m_contextPaneTimer;
    QComboBox *m_outlineCombo;
    QModelIndex m_outlineModelIndex;
    QmlJS::ModelManagerInterface *m_modelManager = nullptr;

    QuickToolBar *m_contextPane = nullptr;
    int m_oldCursorPosition = -1;

    FindReferences *m_findReferences;
};


class QMLJSEDITOR_EXPORT QmlJSEditor : public TextEditor::BaseTextEditor
{
    Q_OBJECT

public:
    QmlJSEditor();

    QmlJSEditorDocument *qmlJSDocument() const;
    bool isDesignModePreferred() const override;
};

class QMLJSEDITOR_EXPORT QmlJSEditorFactory : public TextEditor::TextEditorFactory
{
public:
    QmlJSEditorFactory();
    QmlJSEditorFactory(Utils::Id id);

    static void decorateEditor(TextEditor::TextEditorWidget *editor);
};

} // namespace QmlJSEditor