#!/usr/bin/perl
use strict;
use base 'LEOCHARRE::CLI';
use vars qw(@MODULES);


my $o = gopts('m:uaV');




@MODULES = @ARGV;
(push @MODULES, $o->{m})  if $o->{m};

if ($o->{a}){

   print join( "\n", @INC);

}



if ($o->{a}){

   for my $inc (@INC){
      print STDERR "looking in $inc ..\n";
      my @got = find_modules_in($inc)
         or print STDERR "none found.\n";
      printf STDERR "found %s modules.\n", scalar @got;
      push @MODULES, @got;
   }


}

scalar @MODULES or die("no modules arg");
printf STDERR "Testing for %s module total.. \n", scalar @MODULES;


sub find_modules_in {
   my $dir = shift;

   my @modnames;

   for my $path ( split( /\n/, `find '$dir' -type f -name "*.pm"`) ){
      $path=~s/^$dir\/+//;
      $path=~s/\//\:\:/g;
      $path=~s/\.pm$//;
      push @modnames, $path;
   }

   return @modnames;
}


for my $modname ( @MODULES ){
   my($vold, $vnew);

   unless( ($vold, $vnew) = is_update_available($modname) ){
      print STDERR "$modname, no update found.\n" if DEBUG;
      print STDERR "." if $o->{V};
      next;
   }

   print STDERR "$modname $vold, update $vnew found.\n";
   $o->{u} or next;

   unless( $o->{f} ){ # no force?
      yn("Would you like to update?")
      or next;
   }

   system('cpan', $modname) ==0 or warn("could not update $modname")
      and next;

}







sub is_update_available {
   my $modname = shift;

   my $v_installed = `pmver $modname 2>/dev/null`;
   $v_installed=~s/^\s+|\s+$//g;

   unless( defined $v_installed ){
      print STDERR "$modname installed, missing version\n";
      return;
   }

   my $v_cpan = `pmvercpan $modname 2>/dev/null`;
   $v_cpan=~s/^\s+|\s+$//g;

   unless( defined $v_cpan ){
      print STDERR "$modname on cpan, missing version\n";
      return;
   }


   if ( $v_installed < $v_cpan ){
      return ($v_installed, $v_cpan);
   }
   return;
}















sub usage {
   return qq{
$0 - check status of perl modules installed against versions on cpan



OPTION FLAGS

   -a all modules
   -u auto update modules
   -V verbose


ARGUMENTS

   -m module name to check
   -b base dir to check modules from

SEE ALSO

LEOCHARRE::Dev

USAGE

$0 -ua

   };

}