/*
 * FairXLMNode.h
 *
 *  Created on: 13 wrz 2017
 *      Author: Daniel Wielanek
 *		E-mail: daniel.wielanek@gmail.com
 *		Warsaw University of Technology, Faculty of Physics
 */
#ifndef MPDXLMNODE_H
#define MPDXLMNODE_H
#include <TXMLNode.h>
#include <TList.h>
#include <TXMLAttr.h>
#include <TXMLEngine.h>
#include <TNamed.h>
#include <memory>
/**
 * class for representing node attributes
 */
class MpdXMLAttrib: public TNamed{
public :
	/**
	 * default constructor
	 */
    MpdXMLAttrib():TNamed(){}
	/**
	 * default constructor
	 * @param name name of attribute
	 * @param value value of attribute
	 */
    MpdXMLAttrib(TString name, TString value){
		SetName(name);
		SetTitle(value);}
	/**
	 *
	 * @return value of node
	 */
	TString GetValue() const{return GetTitle();};
	/**
	 *
	 * @param val value of node to se
	 */
	void SetValue(TString val){SetTitle(val);};
    virtual ~MpdXMLAttrib(){};
    ClassDef(MpdXMLAttrib,1)
};
/**
 * class for representing XML node
 */
class MpdXMLNode : public TNamed{
	TList fChildren;
	TList fAttrib;
public:
	/**
	 * copy constructor
	 * @param other
	 */
    MpdXMLNode(const MpdXMLNode &other);
	/**
	 * default constructor
	 * @param name name of node
	 * @param value value of node
	 */
    MpdXMLNode(TString name="",TString value="");
	/**
	 * assignement operator
	 * @param node
	 * @return
	 */
    MpdXMLNode& operator=(const MpdXMLNode &other);
	/**
	 * copy data for node to this
	 * @param node
	 */
	void Copy(TXMLNode *node);
	/**
	 *
	 * @param value new value
	 */
	void SetValue(TString value){SetTitle(value);};
	/**
	 *  add child node to this node, node is now owned by
	 *  parent node
	 * @param node node to add
	 */
    void AddChild(MpdXMLNode *node){fChildren.AddLast(node);};
	/**
	 * add attribute to this class
	 * @param attrib
	 */
    void AddAttrib(MpdXMLAttrib *attrib);
	/**
	 *
	 * @return number of childen nodes
	 */
	Int_t GetNChildren() const {return fChildren.GetEntries();};
	/**
	 *
	 * @return number of attributes
	 */
	Int_t GetNAttributes() const{return fAttrib.GetEntries();};
	/**
	 *  search for child with given name
	 * @param name name of node
	 * @return number of node with given name
	 */
	Int_t GetNChildren(TString name) const;
	/**
	 *
	 * @return value of node
	 */
	TString GetValue() const{return GetTitle();};
	/**
	 *
	 * @param name name of atribute
	 * @return
	 */
    MpdXMLAttrib *GetAttrib(TString name)const;
	/**
	 *
	 * @param index index of atrribute
	 * @return
	 */
    MpdXMLAttrib *GetAttrib(Int_t index)const;
	/**
	 *  search for node with given name
	 * @param name name of node
	 * @param count number of node (if more than one with given name exist)
	 * @return node
	 */
    MpdXMLNode *GetChild(TString name, Int_t count =0) const;
	/**
	 *
	 * @param index child number
	 * @return child at given position
	 */
    MpdXMLNode *GetChild(Int_t index) const;
    virtual ~MpdXMLNode();
    ClassDef(MpdXMLNode,1)
};

/**
 * class for opening XML files
 */
class MpdXMLFile: public TObject{
    std::unique_ptr<MpdXMLNode> fRootNode;
	TString fName;
	Bool_t fOverwrite;
    void ExportNode(XMLNodePointer_t &nodePointer, TXMLEngine &engine,const MpdXMLNode &node) const;
public:
	/**
	 *
	 * @param name name of xml file
	 * @param mode if "READ" or "read" - only read file, otherwise create /overwrite file
	 */
    MpdXMLFile(TString name="", TString mode="read");
	/**
	 * create new root node
	 * @param name name of new node
	 */
	void CreateRootNode(TString name);
	/**
	 * set new root node, old node will be overwritten
	 * @param node root node
	 */
    void SetRootNode(MpdXMLNode *node);
	/**
	 *
	 * @return root node
	 */
    MpdXMLNode *GetRootNode()const{return fRootNode.get();};
	/**
	 * close and write xml (if needed)
	 */
	void Close();
	/**
	 * destroy object (and save xml file if needed and Close was not called)
	 */
    virtual ~MpdXMLFile();
    ClassDef(MpdXMLFile,1)
};

#endif /* MPDXLMNODE_H */