#include "serialListReader.h"
#include "QtCore/QCoreApplication"
#include <vector>
#include <string>
#include <iostream>

using namespace std;

void processParameters(int argc, char *argv[]);
int entryExistsInArgList(int argc, char *argv[], std::string parameterName);
void getSerialListAsStringsFromDatabase();
void convertStringListToNumbers();
void outputApdsInRange();

static bool debug = false;
static bool backwards = false;
static vector<string> serialListString;
static vector<unsigned long> serialList;
static unsigned long serialMin;
static unsigned long serialMax;

int main(int argc, char *argv[]) {
  processParameters(argc, argv);
  QCoreApplication *_app = new QCoreApplication(argc,argv);

  getSerialListAsStringsFromDatabase();
  convertStringListToNumbers();
  outputApdsInRange();

  _app->exit(0);
  return 0;
}

void processParameters(int argc, char *argv[]) {
  size_t validargs = 0;
  if (entryExistsInArgList(argc, argv, "debug")) {
    debug = true;
    validargs++;
  }
  if (entryExistsInArgList(argc, argv, "backwards")) {
    backwards = true;
    validargs++;
  }
  if (argc != validargs+3 ) {
      cerr << "Too few or too many parameters!\n"
          << "Pass first and last serial of range." << endl;
      exit(1);
  }

  serialMin = stoul(argv[1]);
  serialMax = stoul(argv[2]);

  if (serialMin > serialMax) {
      unsigned long oldMin = serialMin;
      serialMin = serialMax;
      serialMax = oldMin;
      cerr << "Warning; Minimum is greater than Maximum, switching them and turning on backwards mode!" << endl;
      backwards = true;
  }
}

int entryExistsInArgList(int argc, char *argv[], std::string parameterName) {
  for (int i = 0; i < argc; i++) {
    if (argv[i] == parameterName) return true;
  }
  return false;
}

void getSerialListAsStringsFromDatabase() {
  serialListReader *_reader = new serialListReader(debug);
  serialListString = _reader->getListOfSerials();
}

void convertStringListToNumbers() {
  serialList.clear();
  for ( size_t i = 0 ; i < serialListString.size() ; i++) serialList.push_back( stoul( serialListString[i] ) );
  if ( serialListString.size() != serialList.size() ) {
    cerr << "ERROR: Sizes don't match!" << endl;
    exit(2);
  }
}

void outputApdsInRange() {
  int numOut = 0;
  for ( size_t i = 0 ; i < serialList.size() ; i++) {
    size_t j = i;
    if (backwards) 
      j = serialList.size() - (i+1);
    if ( serialList [j] >= serialMin && serialList [j] <= serialMax ) {
      cout << serialListString[j] << endl;
      numOut++;
    }
  }
  cerr << "Found " << numOut << " APDs in the given range." << endl;
}