#include "canvas.h"
#include "figures.h"
#include "lexer.h"
#include "parser.h"
#include "drawing.h"
#include <fstream.h>

// THE MAIN PROGRAM
// COMMAND LINE ARGUMENTS: <pic-file> <ppm-file> [ bin|ascii ]
int main(int argc, char* argv[]) {

   parser  P;
   drawable_list L;

   if (argc<3) {
      cerr << argv[0] << " <pic-file> <ppm-file> [ bin|ascii ]" << endl;
      return 1;
   }

   bool ascii = true; // by default

   if (argc==4) {
      if (strcmp(argv[3],"bin") ==0) {
         ascii = false;
      } else if (strcmp(argv[3],"ascii")!=0) {
         cerr << "bin or ascii expected instead of \"" << argv[3] 
              << "\"" << endl;
         return 1;
      }
   }
  
      
   ifstream ifs(argv[1]);
   if (!ifs) {
      cerr << "could not open \"" << argv[1] << "\" for reading" << endl;
      return 1;
   }

   try {
      // parse file
      P.parse(L,ifs);
   } catch (lexer_error& le) {
      cerr << "error: " << le.error 
           << " near line: " << le.line_number << endl;
      return 1;
   } catch (parse_error& pe) {
      cerr << "error: " << pe.error 
           << " near line: " << pe.line_number << endl;
      return 1;
   }

   ifs.close();

   // create a canvas
   canvas C(P.x_resolution(),P.y_resolution());

   // render the figures
   drawing::render(L,C);

   ofstream ofs(argv[2]);

   if (!ofs) {
      cerr << "could not open \"" << argv[2] << "\" for writing" << endl;
      return 1;
   }

   // create PPM file
   if (ascii) C.dump_text_PPM(ofs);
   else C.dump_binary_PPM(ofs);

   ofs.close();

   // done
   return 0;
}