//
// PPD to HTML utility for the CUPS PPD Compiler in libppd.
//
// Copyright 2007-2015 by Apple Inc.
// Copyright 2002-2005 by Easy Software Products.
//
// Licensed under Apache License v2.0.  See the file "LICENSE" for more
// information.
//

//
// Include necessary headers...
//

#include "ppdc-private.h"
#include <sys/stat.h>
#include <sys/types.h>


//
// Local functions...
//

static void	usage(void);


//
// 'main()' - Main entry for the PPD compiler.
//

int					// O - Exit status
main(int  argc,				// I - Number of command-line arguments
     char *argv[])			// I - Command-line arguments
{
  int		i;			// Looping var
  ppdcSource	*src;			// PPD source file data
  ppdcDriver	*d;			// Current driver
  ppdcGroup	*g,			// Current group
		*composite;		// Composite of all drivers
  ppdcOption	*o,			// Current option
		*compo;			// Composite option
  ppdcChoice	*c;			// Current choice
  char		*opt;			// Current option char
  ppdcMediaSize	*size;			// Current media size
  char		*value;			// Value in option


  // Scan the command-line...
  src = new ppdcSource();

  for (i = 1; i < argc; i ++)
    if (argv[i][0] == '-')
    {
      for (opt = argv[i] + 1; *opt; opt ++)
        switch (*opt)
	{
          case 'D' :			// Define variable
	      i ++;
	      if (i >= argc)
	        usage();

              if ((value = strchr(argv[i], '=')) != NULL)
	      {
	        *value++ = '\0';

	        src->set_variable(argv[i], value);
	      }
	      else
	        src->set_variable(argv[i], "1");
              break;

          case 'I' :			// Include directory...
	      i ++;
	      if (i >= argc)
        	usage();

	      ppdcSource::add_include(argv[i]);
	      break;

	  default :			// Unknown
	      usage();
	      break;
	}
    }
    else
    {
      // Open and load the driver info file...
      src->read_file(argv[i]);
    }

  if ((d = (ppdcDriver *)src->drivers->first()) != NULL)
  {
    // Create a composite group with all of the features from the
    // drivers in the info file...
    composite = new ppdcGroup("", "");

    while (d != NULL)
    {
      for (g = (ppdcGroup *)d->groups->first(); g; g = (ppdcGroup *)d->groups->next())
	for (o = (ppdcOption *)g->options->first(); o; o = (ppdcOption *)g->options->next())
	{
	  if (!composite->find_option(o->name->value))
	    composite->add_option(new ppdcOption(o));
	}

      d = (ppdcDriver *)src->drivers->next();
    }

    puts("<html>");
    printf("<head><title>Driver Summary for %s</title></head>\n", argv[i]);
    printf("<body><h1>Driver Summary for %s</h1>\n", argv[i]);
    printf("<p><table border='1'><thead><tr><th>Printer</th><th>Media Size</th>");
    for (compo = (ppdcOption *)composite->options->first(); compo; compo = (ppdcOption *)composite->options->next())
      printf("<th>%s</th>", compo->text->value);
    puts("</tr></thead><tbody>");

    // Write HTML summary...
    for (d = (ppdcDriver *)src->drivers->first(); d; d = (ppdcDriver *)src->drivers->next())
    {
      // Write the summary for this driver...
      printf("<tr valign='top'><td nowrap>%s</td><td nowrap>", d->model_name->value);
      for (size = (ppdcMediaSize *)d->sizes->first(); size;
	   size = (ppdcMediaSize *)d->sizes->next())
	printf("%s<br>", size->text->value);
      printf("</td>");

      for (compo = (ppdcOption *)composite->options->first(); compo;
	   compo = (ppdcOption *)composite->options->next())
	if ((o = d->find_option(compo->name->value)) != NULL)
	{
	  printf("<td nowrap>");
	  for (c = (ppdcChoice *)o->choices->first(); c;
	       c = (ppdcChoice *)o->choices->next())
	    printf("%s<br>", c->text->value);
	  printf("</td>");
	}
	else
	  printf("<td>N/A</td>");

      puts("</tr>");
    }

    puts("</tbody></table></p>");
    puts("</body>");
    puts("</html>");

    // Delete the printer driver information...
    composite->release();
  }
  else
  {
    // If no drivers have been loaded, display the program usage message.
    usage();
  }

  src->release();

  // Return with no errors.
  return (0);
}


//
// 'usage()' - Show usage and exit.
//

static void
usage(void)
{
  puts(_("Usage: ppdhtml [options] filename.drv "
                          ">filename.html"));
  puts(_("Options:"));
  puts(_("  -D name=value           Set named variable to "
                          "value."));
  puts(_("  -I include-dir          Add include directory "
                          "to search path."));

  exit(1);
}
