#pragma once

#include "config.h"
#include <QTreeWidgetItem>

// interface
class ButtonManagerItem : public QTreeWidgetItem {
protected:
	ButtonManagerItem(QTreeWidgetItem* parent, int type, uint8_t pos);
public:
	virtual ~ButtonManagerItem();

	virtual bool hasEdit() const;
	virtual bool hasRemove() const;
	virtual bool hasMoveUp() const;
	virtual bool hasMoveDown() const;

	virtual void edit();
	virtual void remove();
	virtual void moveUp();
	virtual void moveDown();

	template<typename T>
	T* getParent() const;

	template<typename T>
	T* getChild(int index) const;

	template<typename T>
	T* getLastChild() const;

	template<typename T>
	T* getSibling(int index) const;

	template<typename T>
	T* getItemAbove() const;

	template<typename T>
	T* getItemBelow() const;

	void reenumerateAllSiblings();
	void expandTree(); // expand this and every parent item
protected:
	QTreeWidgetItem* mparent = nullptr;
	uint8_t pos = 0;

	void updateAllPosBellow(int8_t diff, uint8_t size);
	virtual void updatePosition();
};

class RowItem : public ButtonManagerItem {
public:
	RowItem(QTreeWidgetItem* parent, uint8_t rownr, Config::RootConfig& conf);

	const static int TYPE = 1000;

	virtual bool hasRemove() const override;
	virtual bool hasMoveUp() const override;
	virtual bool hasMoveDown() const override;

	virtual void remove() override;
	virtual void moveUp() override;
	virtual void moveDown() override;

	uint8_t getRow() const; // returns the number of this row
	std::vector<Config::ButtonConfig>& getConfig();

private:
	Config::RootConfig& conf;

	//called when the row was moved
	void updatePosition() override;
};

class ButtonItem : public ButtonManagerItem {
public:
	ButtonItem(RowItem* parent, uint8_t buttonnr, Config::RootConfig& conf);

	const static int TYPE = 1001;

	virtual bool hasEdit() const override;
	virtual bool hasRemove() const override;
	virtual bool hasMoveUp() const override;
	virtual bool hasMoveDown() const override;

	virtual void edit() override;
	virtual void remove() override;
	virtual void moveUp() override;
	virtual void moveDown() override;


	// triggered from the view when the name was changed
	void nameWasChanged();
	void keyWasChanged();

	Config::ButtonConfig& getConfig();
private:
	Config::RootConfig& conf;

	void moveToRowAbove();
	void moveToRowBelow();
};

class SampleItem : public ButtonManagerItem {
public:
	SampleItem(ButtonItem* parent, uint8_t samplenr, Config::RootConfig& conf);

	const static int TYPE = 1002;

	virtual bool hasEdit() const override;
	virtual bool hasRemove() const override;
	virtual bool hasMoveUp() const override;
	virtual bool hasMoveDown() const override;

	virtual void edit() override;
	virtual void remove() override;
	virtual void moveUp() override;
	virtual void moveDown() override;

	Config::SampleConfig& getConfig();
private:
	Config::RootConfig& conf;

	//called when a sample was moved
	void updatePosition() override;

	void moveToButtonAbove();
	void moveToButtonBelow();
};