/* load files onto the Network Walkman */
#include <stdio.h>
#include <stdlib.h>
#include <sys/stat.h>
#include <errno.h>
#include <string.h>
#include <glib.h>

#include <mple.h>

void usage( void ) {
  if ( errno ) {
    perror( "mple-rm" );
  } else {
    fprintf( stderr, "usage: %s /device/path tracknum\n", "mple-rm" );
  }
  exit( 1 );
}

int main( int argc, char *argv[] ) {
  struct stat statbuf;
  mple_device *dev;
  guint16 newtrack = 1;

  errno = 0; /* safety clown says ... */

  if ( argc < 3 ) {
    usage();
  }

  if ( stat( argv[1], &statbuf ) != 0 ) {
    usage();
  }

  newtrack = atoi( argv[2] );

  if ( !newtrack ) {
    usage();
  }

  /* create a new device structure for argv[1] */
  dev = mple_dev_init( argv[1] );

  if ( dev != NULL ) {
    fprintf( stderr, "trying to delete track %d\n", newtrack );
    newtrack = mple_del_track( dev, newtrack );
    if ( newtrack ) {
      fprintf( stderr, "deleted %s\n", argv[2] );
    } else {
      fprintf( stderr, "failed: %s\n", strerror( errno ));
    }

    /* check the device for empty folders */
    STARTOVER:
    {
      GList *node = dev->folderlist;
      guint16 folder = 0;

      while( node ) {
        mple_folder *fptr = node->data;
        folder++;

        if ( g_list_length( fptr->tracklist ) == 0 ) {
          fprintf( stderr, "deleting empty folder\n" );
          mple_del_folder( dev, folder );
          goto STARTOVER; /* index will be out of whack otherwise */
        }

        node = g_list_next( node );
      }
    }

    mple_dev_free( dev );
  }

  return 0;
}