/** A NetworkReader reads in data about the traffic network from a specified
 * xml file.
 * 
 * A NetworkReader contains two public methods 'getLines' and 'getLoops',
 * which are getters for the list of FEP_LINES, and LDS_LOOPS, respectively.
 * 
 * Example xml file:
 * <code>
 * <Network>
 * <Line>
 *   <Line_Num>5</Line_Num>
 *   <Count>20</Count>
 *   <Schedule>1</Schedule>
 *   <Line_Info>1</Line_Info>
 *   <System_Key>1123005673</System_Key>
 *   <Global_Seq>1357648</Global_Seq>
 *   <Schedule_Seq>26492</Schedule_Seq>
 *   <Stations>
 *     <Station>
 *       <LDS_ID>1205270</LDS_ID>
 *       <Line_Num>5</Line_Num>
 *       <Drop>19</Drop>
 *       <Location>MAIN 1</Location>
 *       <Post_Mile>33.0</Post_Mile>
 *       <Direction>S</Direction>
 *       <Freeway>5</Freeway>
 *       <ML_Tot_Vol>0</ML_Tot_Vol>
 *       <Opp_Tot_Vol>0</Opp_Tot_Vol>
 *       <Loops>
 *         <Loop>
 *           <Loop_ID>1205272</Loop_ID>
 *           <Loop_Location>RAMP_ON</Loop_Location>
 *           <Lane_Num>1</Lane_Num>
 *           <Vol>0</Vol>
 *           <Occ>0</Occ>
 *           <Spd>0</Spd>
 *         </Loop>
 *          .......
 * </code>
 * 
 * @author John A. Torres
 * @verions 9/08/2017
 */

// Include guard
#ifndef __NETWORKREADER_H_INCLUDED__
#define __NETWORKREADER_H_INCLUDED__

// Forward declared dependencies

// Included dependencies
#include "network.h"
#include <vector>
#include <string>
#include <string.h>
#include <iostream>
#include "tinyxml.h"

class NetworkReader
{
    public:
        NetworkReader(const char * networkFile); // Constructor
        ~NetworkReader(); // Destructor
        
        vector<FEP_LINE> getLines(); // Getter for FEP_LINE list
        vector<LDS_LOOP> getStations(); // Getter for LDS_LOOP list
    private:
        vector<FEP_LINE> lines;
        vector<LDS_LOOP> stations;
        int ldsIndex;

        void loadLines(const char * networkFileName);
        LDS_LOOP parseStation(TiXmlElement *stationElem, FEP_LINE line);
        FEP_LINE parseLine(TiXmlElement *lineElem);

        bool DataAvail(char flag, int num); // Helper function for msgDataPack
        unsigned char * msgDataPack(LDS_LOOP loop); // Packs the message sent to ATMS
};

#endif