#include <fstream.h>
#include <string.h>
#include <stdio.h>
#include "QuadFiler.h"
#include "Quad.h"
#include "Token.h"
#include "pmglobs.h"
 
void QuadFiler::store(char* filename) {
   strcpy(fname, filename);
}

void QuadFiler::createQuadFile() {
   remove(fname); //remove the old one if it exists
   fs.open(fname, ios::in | ios::out ); //open a new one
}

void QuadFiler::retrieveQuadFile() {
   fs.open(fname, ios::in | ios::out); //open a new one
}

void QuadFiler::removeQuadFile() {
   remove(fname);
}

void QuadFiler::seeQuadFile() {
   int k=1;
   int op, t1a, t1b, t2a, t2b, res;
   Quadruple q;
   Token opnd1, opnd2;
   retrieveQuadFile();
   cout << "\n\nThe set of Quadruples for "<< fname << " is: \n\n";
   cout << "Quad #   Quadruple\n";
   cout <<"--------------------------------------------------\n";
   fs>>op>>t1a>>t1b>>t2a>>t2b>>res;
   while (!fs.eof()) {
      opnd1.setClass(TokenClass(t1a)); opnd1.setValue(t1b);
      opnd2.setClass(TokenClass(t2a)); opnd2.setValue(t2b);
      q.setQuad(op, opnd1, opnd2, res);
      cout.width(4); cout<<k<<"      ";
      q.show();
      fs>>op>>t1a>>t1b>>t2a>>t2b>>res;
      k++;
   }
   closeQuadFile();
   cout << "\nEnd of Quadruple file!";
 }

void QuadFiler::emitQuad(Quadruple q) {
   int t1a=q.opnd1.getClass(); int t1b=q.opnd1.getValue();
   int t2a=q.opnd2.getClass(); int t2b=q.opnd2.getValue();
   fs<<q.oper<<" "<<t1a<<" "<<t1b<<" "<<t2a<<" "<<t2b<<" "<<q.result<<"\n";
} 
   

   
Quadruple QuadFiler::getNextQuad() {
   int op, t1a, t1b, t2a, t2b, res;
   Token opnd1, opnd2;
   fs>>op>>t1a>>t1b>>t2a>>t2b>>res;
   opnd1.setClass(TokenClass(t1a));opnd1.setValue(t1b);
   opnd2.setClass(TokenClass(t2a));opnd2.setValue(t2b);
   q.setQuad(op, opnd1, opnd2, res);
   return q;
}