//
//  Text3DOverlay.h
//  interface/src/ui/overlays
//
//  Copyright 2014 High Fidelity, Inc.
//
//  Distributed under the Apache License, Version 2.0.
//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
//

#ifndef hifi_Text3DOverlay_h
#define hifi_Text3DOverlay_h

#include <QString>
#include <QtCore/QMutex>
#include "Billboard3DOverlay.h"

class TextRenderer3D;

class Text3DOverlay : public Billboard3DOverlay {
    Q_OBJECT
    using Parent = Billboard3DOverlay;

public:
    static QString const TYPE;
    virtual QString getType() const override { return TYPE; }

    Text3DOverlay();
    Text3DOverlay(const Text3DOverlay* text3DOverlay);
    ~Text3DOverlay();
    virtual void render(RenderArgs* args) override;

    virtual void update(float deltatime) override;

    virtual const render::ShapeKey getShapeKey() override;

    // getters
    const QString getText() const;
    float getLineHeight() const { return _lineHeight; }
    float getLeftMargin() const { return _leftMargin; }
    float getTopMargin() const { return _topMargin; }
    float getRightMargin() const { return _rightMargin; }
    float getBottomMargin() const { return _bottomMargin; }
    xColor getBackgroundColor();
    float getTextAlpha() { return _textAlpha; }
    float getBackgroundAlpha() { return getAlpha(); }
    bool isTransparent() override { return Overlay::isTransparent() || _textAlpha < 1.0f; }

    // setters
    void setText(const QString& text);
    void setTextAlpha(float alpha) { _textAlpha = alpha; }
    void setLineHeight(float value) { _lineHeight = value; }
    void setLeftMargin(float margin) { _leftMargin = margin; }
    void setTopMargin(float margin) { _topMargin = margin; }
    void setRightMargin(float margin) { _rightMargin = margin; }
    void setBottomMargin(float margin) { _bottomMargin = margin; }

    void setProperties(const QVariantMap& properties) override;
    QVariant getProperty(const QString& property) override;

    QSizeF textSize(const QString& test) const;  // Meters

    virtual bool findRayIntersection(const glm::vec3& origin, const glm::vec3& direction, float& distance,
                                        BoxFace& face, glm::vec3& surfaceNormal) override;

    virtual Text3DOverlay* createClone() const override;

private:
    TextRenderer3D* _textRenderer = nullptr;

    QString _text;
    mutable QMutex _mutex; // used to make get/setText threadsafe, mutable so can be used in const functions
    xColor _backgroundColor = xColor { 0, 0, 0 };
    float _textAlpha { 1.0f };
    float _lineHeight { 1.0f };
    float _leftMargin { 0.1f };
    float _topMargin { 0.1f };
    float _rightMargin { 0.1f };
    float _bottomMargin { 0.1f };
    int _geometryId { 0 };
};

#endif // hifi_Text3DOverlay_h