/*
 * JSONparseCore.h
 *
 *  Created on: 5 Mar 2017
 *      Author: wentzelc
 */

#ifndef REDACORE_JSONPARSECORE_H_
#define REDACORE_JSONPARSECORE_H_

// redA Libraries
#include <BufferCore.h>
#include <DataTreeCore.h>

// Standard C/C++ Libraries
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <stdio.h>

//---------------------------------------------------------------------------

class CJSONparse
{
private:
    CDataTree   * DataTree;

    // File operation
    int     InputHandle;
    int     OutputHandle;

    CShiftBuffer    * Buffer;

    // Parsing operation
    char    * BufEnd;
    char    * BufPos;
    char    * LineMark;
    int     LineNo;
    int     Level;

    // Printing Operation
    char    Spacer[100];
    int     SpacerLen;

    // Error
    bool    Error;
    char    ErrorText[100];

    // File Buffer operation
    bool CreateBuffer( int pBufLen );
    bool FillBuffer();
    void FreeBuffer();

    // Parsing functions
    inline void SkipWhiteSpace() {
        while (isspace(*BufPos)) {
            if (*BufPos == '\n') {
                LineMark = BufPos;
                LineNo++;
            }
            BufPos++;
        }
    }
    bool ParseString( char ** Value, int &pLen );
    bool ParseObject( TDataMember * Object );
    bool ParseArray( TDataMember * Array );
    bool ParseString( TDataMember * Member );
    bool ParsePrimitive( TDataMember * Member );

    bool PrintObject( TDataMember * Object, const int Indent );
    bool PrintArray( TDataMember * Object, const int Indent );

public:
    CJSONparse( CDataTree * pDataTree );
    ~CJSONparse();

    bool PrintToScreen( const int Indent );

    bool LoadFromFile( const char * FilePath, int pBufLen = 500 );
    bool SaveToFile( const char * FilePath, const int Indent = 2 );

    const char * GetError() { return ((Error)? ErrorText : "Success"); };
};

#endif /* REDACORE_JSONPARSECORE_H_ */