#!/usr/bin/perl -w
#
# ecaccess-file-size: Show the Size of an ECaccess File
#
# Laurent.Gougeon@ecmwf.int - 2010-10-15

use ECMWF::ECaccess;
use Getopt::Long;
use Pod::Usage;
use Number::Bytes::Human qw(format_bytes);

my %opt = ( human => 0, version => 0, help => 0, manual => 0, retry => 0, debug => 0 );

pod2usage( -noperldoc => 1, -exit => 1, verbose => 1 ) if !GetOptions(
	\%opt,
	qw(
	  human
	  version
	  help|?
	  manual
	  retry=i
	  debug
	  )
);

# Display version if requested
die ECMWF::ECaccess->VERSION . "\n" if ( $opt{version} );

my $ecaccessFile = $ARGV[0];

pod2usage( -noperldoc => 1, -exit => 1, verbose => 1 ) if ( $opt{help} );
pod2usage( -noperldoc => 1, -exit => 1, verbose => 2 ) if ( $opt{manual} );
pod2usage( -noperldoc => 1, -exit => 1, verbose => 0, -msg => "No file specified!\n" ) if not($ecaccessFile);

# Create the ECaccess Controler
my $ecaccess = ECMWF::ECaccess->new( $opt{retry}, $opt{debug});

# Get the Token (using the Certificate in $HOME)
my $token = $ecaccess->getToken();

# Get the Control Channel
my $controlChannel = $ecaccess->getControlChannel();

# Get the modtime
my $size = $controlChannel->getFileSize( $token, $ecaccessFile )->result;

# Display the result
if ( $opt{human} ) {
	print format_bytes($size) . "\n";
}
else {
	print $size. "\n";
}

# Logout
END {
  $ecaccess->releaseToken($token) if ($token);
}

__END__

=head1 NAME

ecaccess-file-size - Show the Size of an ECaccess File

=head1 SYNOPSIS

B<ecaccess-file-size -version|-help|-manual>

B<ecaccess-file-size [-debug] [-human]> I<ecaccess-file>

=head1 DESCRIPTION

Allow showing the size of I<ecaccess-file> (-1 for a directory).

The I<ecaccess-file> is in the form [domain:][/user-id/]path. Please read the "Shell commands -> File Management"
section of the "ecaccess" guide for more information on the ECaccess File System.

=head1 ARGUMENTS

=over 8

=item I<ecaccess-file>

Then name of the ECaccess File to get the size.

=back

=head1 OPTIONS

=over 8

=item B<-human>

Print size in human readable format (e.g. 234M).

=item B<-version>

Display version number and exits.

=item B<-help>

Print a brief help message and exits.

=item B<-manual>

Prints the manual page and exits.

=item B<-retry> I<count>

Number of SSL connection retries per 5s to ECMWF. This parameter only apply to the
initial SSL connection initiated by the command to the ECMWF server. It does not
apply to all the subsequent requests made afteward as it is mainly targeting errors
that can happen from time to time during the SSL handshake. Default is no retry.

=item B<-debug>

Display the SOAP and SSL messages exchanged.

=back

=head1 EXAMPLES

B<ecaccess-file-size> I<bin/a.out>

Display the Size of the I<a.out> File in the $HOME/bin directory of the authenticated user.

=head1 SEE ALSO

B<ecaccess-file-delete>, B<ecaccess-file-get>, B<ecaccess-file-mget>, B<ecaccess-file-modtime>, B<ecaccess-file-mput>,
B<ecaccess-file-rmdir>, B<ecaccess-file-copy>, B<ecaccess-file-dir>, B<ecaccess-file-mdelete>, B<ecaccess-file-mkdir>,
B<ecaccess-file-move>, B<ecaccess-file-put>, B<ecaccess-file-chmod> and B<ecaccess>.

=cut
