//
//  KKGLinearLayout.h
//  SteveAndMaggieWorld
//
//  Created by Katarzyna Kalinowska-Górska on 03/12/2020.
//

#ifndef KKGLinearLayout_h
#define KKGLinearLayout_h

#include "cocos2d.h"

class KKGLinearLayout : public cocos2d::Node {
public:
    
    enum LayoutType {
        HORIZONTAL,
        VERTICAL
    };
    
    // Alignment in the horizontal or vertical axis - the main one, chosen in LayoutType
    typedef enum Alignment : int {
        ASTART = 0,
        ACENTER = 1,
        AEND = 2
    } Alignment;
    
    // Alignment in the cross axis
    typedef enum Gravity : int {
        GSTART = 0,
        GCENTER = 1,
        GEND = 2
    } Gravity;
    
    static KKGLinearLayout* create(LayoutType type, Alignment alignment, Gravity gravity);
    
    virtual bool init(LayoutType type, Alignment alignment, Gravity gravity);
    
    virtual void setInterViewMargin(float margin, bool immediatelyRelayout = true);
    float getInterViewMargin();
    virtual void addViews(std::vector<cocos2d::Node*> views, bool immediatelyRelayout = true);
    
    virtual void setLayoutContentSize(const cocos2d::Size & var, bool immediatelyRelayout = true);
    const cocos2d::Size& getLayoutContentSize() const;
    virtual void addView(cocos2d::Node * view, bool immediatelyRelayout = true);
    virtual void substituteViewAtIndex(int index, cocos2d::Node * newView);
    
    virtual void setBackgroundColor(const cocos2d::Color4B& bgColor);
    
    cocos2d::Vector<cocos2d::Node*> getViews();
    cocos2d::Node* getView(int index);
    bool hasViews();
//    void removeViewAtIndex(int index, bool relayout = true);
    void removeAllViews(bool relayout);
    void removeLastView(bool relayout = true);
    
    void wrapContents();
    virtual void layoutViews();
    virtual void setCascadeOpacityEnabled(bool cascadeOpacityEnabled) override;
    
protected:
    LayoutType m_type { HORIZONTAL };
    Alignment m_alignment { ASTART };
    Gravity m_gravity { GCENTER };
    float m_interChildMargin { 0 };
    cocos2d::Point m_internalContainerAnchorPoint;
    
    cocos2d::LayerColor* m_backgroundNode {nullptr}; //TODO I might want to create a superclass node with some stuff like bg 
    cocos2d::Node* m_internalContainer { nullptr };
    
    virtual void prepareInternalContainer();
    virtual void adjustBackground(const cocos2d::Size& contentSize);
};

#endif /* KKGLinearLayout_h */