/* 
   g++ QR2SerialNum.C -o QR2SerialNum.exe
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <string>
#include <iostream>
#include <map>

using namespace std;

int 
main (int argc, char *argv[])
{
  if (argc<2) {
    cerr << "not enough arguments: argc = " << argc << endl
         << "Syntax should be:\n./QR2SerialNum.exe QRCode" << endl
         << "Example:\n./QR2SerialNum.exe \"SAMPA V4G35F77.118/254182\"" << endl;
    return -1;
  }
  
  const int kFirstLot = 11;
  // see info on waferlots and prefix to be used for serial numbers in waferlots.txt
  // not so many, so I just setup the map here directly
  map<string,int> lot_map;
  lot_map["G35F72.1"] = 0;
  lot_map["G35F73.1"] = 1;
  lot_map["G35F74.1"] = 2;
  lot_map["G35F75.1"] = 3;
  lot_map["G35F76.1"] = 4;
  lot_map["G35F77.1"] = 5;
  lot_map["G35F78.1"] = 6;
  lot_map["G35F79.1"] = 7;
  lot_map["G35F80.1"] = 8;
  lot_map["G35F81.1"] = 9;
  lot_map["G35F82.1"] = 10;
  lot_map["G35F83.1"] = 11;
  lot_map["G35F83.2"] = 12; // N.B.: special case; not sure if serial number within .2 lot will start at 0 or not
  lot_map["G35F84.1"] = 13;
  lot_map["G35F85.1"] = 14;
  lot_map["G39B57.1"] = 15;
  lot_map["G39B58.1"] = 16;
  lot_map["G6M389.1"] = 17;
  lot_map["GAHM81.1"] = 18;

  // let's get the parts of the argument string we need  
  string str(argv[1]);
  string strLot = str.substr(8,8); // wafer lot part
  string strNum = str.substr(21,4); // last 4 digits; number within wafer lot
  cout << " chipStr " << str << " lot-id " << strLot << " serialNum " << strNum << endl;

  map<string,int>::iterator it  = lot_map.find(strLot);
  if (it != lot_map.end()) {
    //      cout << " prefix " << it->second << endl;
    int ichip = atoi(strNum.c_str());
    ichip += (it->second + kFirstLot)*10000;

    if (it->second == 17) {
      char *c = (char *) str.c_str();
      char *pos = strstr(c, "20/07");
      if (pos) { // original set, no offset needed
      }
      else {
	ichip += 5000;
      }
    }

    cout << " 6-digit-id: " << ichip << endl;
  }
  else {
    cerr << " unknown lot! " << endl;
  }

  return 0;
}