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class Measurement
{
public:
   Measurement();
   Measurement(std::string datetime, float val);
   void setDatetime(std::string datetime);
   void setVal(float val);
   std::string getDatetime(void) const;
   float getVal(void) const;
private:
   std::string m_datetime;
   float m_val;
};



#include "measurement.hpp"

Measurement::Measurement()
{
}

Measurement::Measurement(std::string datetime, float val)
{
   m_datetime = datetime;
   m_val = val;
}

void Measurement::setDatetime(std::string datetime)
{
   m_datetime = datetime;
}

void Measurement::setVal(float val)
{
   m_val = val;
}

std::string Measurement::getDatetime(void) const
{
   return m_datetime;
}

float Measurement::getVal(void) const
{
   return m_val;
}



class Statistics
{
public:  
   void addMeasurement(std::string datetime, float val);
   void clearAll(void);
   Measurement getMaxMeasurement(void) const;
   Measurement getMinMeasurement(void) const;
   Measurement getMeanMeasurement(void) const;
   int queryMeasurement(std::string filename, std::string location, std::string sensor);
   void printVector(void) const;
   
   //void sortone(void);
   
private:
   std::vector<std::string> breakSpaces(const std::string& str) const;
   std::vector<Measurement> m_mv;
};

#include <iostream>
#include <fstream>
#include <sstream>
#include <string>
#include <vector>
#include <algorithm>

#include "statistics.hpp"

void Statistics::addMeasurement(std::string datetime, float val)
{  
   m_mv.push_back(Measurement(datetime, val));
}

void Statistics::clearAll(void)
{
   m_mv.clear();
}

Measurement Statistics::getMaxMeasurement(void) const
{  
  Measurement maxM;
  int i;

  if (m_mv.empty()) {
    // error, do sth for god shake :P
  }
  else {
     maxM = m_mv[0];
  }

  for (i = 1; i < m_mv.size(); i++)
     if (maxM.getVal() < m_mv[i].getVal())
	maxM = m_mv[i];

  return maxM;
}

Measurement Statistics::getMinMeasurement(void) const
{
   Measurement minM;
   int i;

   if (m_mv.empty()) {
      // error, do sth for god shake :P
   }
   else {
      minM = m_mv[0];
   }

   for (i = 1; i < m_mv.size(); i++)
      if (minM.getVal() > m_mv[i].getVal())
         minM = m_mv[i];

   return minM;
}

Measurement Statistics::getMeanMeasurement(void) const
{
   float mean;
   int i;

   if (m_mv.empty()) {
      // error, do sth for god shake :P
   }

   mean = 0.0;
   for (i = 0; i < m_mv.size(); i++)
      mean += m_mv[i].getVal();

   return Measurement("none", mean/m_mv.size());
}

/*
 * `getMeasurement' searches the data file and fills in a vector of Measurements
 * that fulfill the searching criteria, namely the location and the sensor type.
 */
int Statistics::queryMeasurement(std::string filename, std::string location, std::string sensor)
{
   std::ifstream infile(filename.c_str());
   std::string readline;
   std::vector<std::string> vs;
   int i;
   Measurement m;

   if (!infile.is_open()) {
      return -1;
   }

   while (!infile.eof()) {
      std::getline(infile, readline);
      vs = breakSpaces(readline);

      if (vs[0] == location) {	 
	 m.setDatetime(vs[1] + " " + vs[2] + " " + vs[3] + " " + vs[4] + " "  + vs[5]);      
	 for (i = 6; i < vs.size(); i++) {
	    if (vs[i] == sensor) {	       
	       std::stringstream ss;
	       ss << vs[i + 1];
	       float f;
	       ss >> f;
	       m.setVal(f);	    
	       m_mv.push_back(m);
	       break;
	    }
	 }
      }
   }

   return 0;
}

std::vector<std::string> Statistics::breakSpaces(const std::string& str) const
{
   std::vector<std::string> vs;
   std::string::size_type startpos, endpos, len;   
   int i, j;
   
   len = str.size(); 
   for (i = 0; i < len; i++) {
      for (j = i; j < len, str[j] == ' '; j++)
	 ;
      startpos = j;
      
      for (j = startpos + 1; j <= len, str[j] != ' ' && str[j] != '\0'; j++)
	;
      endpos = j - 1;
      
      if (startpos != len)
	 vs.push_back(str.substr(startpos, endpos - startpos + 1));
      i = endpos + 1;	 
   }
   return vs;
}

/*
 * Prints all the items of the vector.
 * Useful for debugging purposes.
 */
void Statistics::printVector(void) const
{
   int i;

   for (i = 0; i < m_mv.size(); i++)
      std::cout << "Datetime = " << m_mv[i].getDatetime() << " "
		<< "Val = " << m_mv[i].getVal() << std::endl;
}

//attempt to sort

/*void Statistics::sortone(void)
{
   if (m_mv.empty()) {
      // error, do sth for god shake :P
   }
   
   sort(m_mv.begin(), m_mv.end());
   Statistics::printVector();

}
*/




class Mainframe
{
public:
   Mainframe(std::string filename);
   std::string getFilename(void) const;
   void addNode(Node *node);  
   void removeNode(std::string location);
   Node *getNodeByName(std::string location);
   unsigned int getNumOfNodes(void) const;
   void printAll(std::ostream& stream) const;
   
   Node *getNodeByIndex(unsigned int index);

   Measurement getMaxMeasurement(std::string sensorType);
   Measurement getMinMeasurement(std::string sensorType);
   Measurement getMeanMeasurement(std::string location, std::string sensorType);
   
   //void Mainframe::sortone(std::string sensorType);
   
private:
   std::vector<Measurement> getMeasurement(std::string location, std::string sensor) const;
   std::vector<Node *> m_pnv;
   std::string m_filename;
   Statistics m_stat;
};




#include <iomanip>
#include <iostream>
#include <string>
#include <vector>

#include "mainframe.hpp"
#include "node.hpp"

Mainframe::Mainframe(std::string filename)
{
   m_filename = filename;
}

std::string Mainframe::getFilename(void) const
{
   return m_filename;
}

void Mainframe::addNode(Node *node)
{
   m_pnv.push_back(node);
}

/*
 * Remove a node from the mainframe's list provided that
 * there is a match as far the location name is concerned.
 */
void Mainframe::removeNode(std::string location)
{   
   std::vector<Node *>::iterator it;

   for (it = m_pnv.begin(); it != m_pnv.end(); it++)
      if ((*it)->getLocation() == location) {	 
	 m_pnv.erase(it);
	 break;
      }      
}

Node* Mainframe::getNodeByName(std::string location)
{
   std::vector<Node *>::iterator it;

   for (it = m_pnv.begin(); it != m_pnv.end(); it++)
     if ((*it)->getLocation() == location)
         break;

   return *it;
}

unsigned int Mainframe::getNumOfNodes(void) const
{
   return m_pnv.size();
}

/*
 * `printAll' prints all sensors' data for all nodes
 * in the output `stream'. 
 */
void Mainframe::printAll(std::ostream& stream) const
{
   unsigned int i;
   std::vector<Node *>::const_iterator it;

   for (it = m_pnv.begin(); it != m_pnv.end(); it++) {      
         stream << std::setw(15) << std::left << (*it)->getLocation() << " "
                                              << (*it)->getDateTime() << " ";
      for (i = 0; i < (*it)->getNumOfSensors(); i++) {
	 stream << (*it)->getSensor(i)->getType() << " "
		<< (*it)->getSensor(i)->getVal() << " " ;
      }
      stream << std::endl;
   }

   stream << std::endl;
}

Measurement Mainframe::getMaxMeasurement(std::string sensorType)
{
   Measurement maxM;
   int i;
   
   for (i = 0; i < m_pnv.size(); i++)
      m_stat.queryMeasurement(m_filename, m_pnv[i]->getLocation(), sensorType);   
   
   maxM =  m_stat.getMaxMeasurement();
   m_stat.clearAll();

   return maxM;
}

Measurement Mainframe::getMinMeasurement(std::string sensorType)
{
   Measurement minM;
   int i;
  
   for (i = 0; i < m_pnv.size(); i++)
      m_stat.queryMeasurement(m_filename, m_pnv[i]->getLocation(), sensorType);
   
   minM =  m_stat.getMinMeasurement();
   m_stat.clearAll();

   return minM;
}


Measurement Mainframe::getMeanMeasurement(std::string location, std::string sensorType)
{
            Measurement meanM;
            m_stat.queryMeasurement(m_filename, location, sensorType);
            meanM = m_stat.getMeanMeasurement();
            m_stat.clearAll();
            
            return meanM;
            
}

Node* Mainframe::getNodeByIndex(unsigned int index)
{
     return m_pnv[index];
}

//sort

/*void Mainframe::sortone(std::string sensorType)
{
     int i;
     for (i = 0; i < m_pnv.size(); i++)
         m_stat.queryMeasurement(m_filename,m_pnv[i]->getLocation(),sensorType);
     
     m_stat.sortone();
     m_stat.clearAll();
     
}
*/