#!/usr/bin/perl -s -Ilib
# PODNAME: dmoss-process
# ABSTRACT: command line tool to process a software package

use warnings;
use strict;

use DMOSS;
use File::Fetch;
use File::Copy;
use File::Basename;
use File::Path qw/make_path/;
use File::Find;
use Archive::Extract;
use Data::Dumper;

my $tmpdir = '/tmp/dmoss';
my $targetdir = $tmpdir.'/'.int(rand(10000));
make_path($targetdir) unless -e $targetdir;

my $DEBUG = 0;
our $stdout;
my $source = shift;
my $targetfile = '';

unless ($source) {
  print "Error: suply a file or URL to process\n",
    " \$ dmoss-process <file|url>\n",
  exit;
}

# get file if url
if ($source =~ m/^(http|ftp):\/\//) {
	my $ff = File::Fetch->new(uri => $source);
	$targetfile = $ff->fetch( to => $targetdir );
}
else { # copy file if file only
	$targetfile = "$targetdir/".(basename $source);
	copy($source, $targetfile);
}

my $basedir = $targetdir;
if ($targetfile =~ m/(tgz|gz|zip|)$/i) {
	my $ae = Archive::Extract->new( archive => $targetfile );
	my $ok = $ae->extract( to => $targetdir );
	$basedir = $ae->extract_path;
}

$basedir =~ s/(bin)\/?$//;

print STDERR "targetfile $targetfile\n" if $DEBUG;
print STDERR "basedir $basedir\n" if $DEBUG;

# process basedir
my @files;
find(\&proc_file, $basedir);

my $dmoss = DMOSS->new($basedir, @files);

# clear previsou tmp data
unless ($DEBUG) {
  unlink  '/tmp/full_plain_text.txt' if -e '/tmp/full_plain_text.txt';
  unlink  '/tmp/full_func_id.txt' if -e '/tmp/full_func_id.txt';
}

# process
$dmoss->process;

# final result
if ($stdout) {
  # print to stdout
  print $dmoss->to_stdout;
}
else {
  # save to default file
  my $output = $dmoss->save;
  print STDERR "Data saved as $output\n";
}

sub proc_file {
	my $f = $File::Find::name;

	return if -d $f;
    push @files, $f;
}

__END__

=encoding UTF-8

=head1 SYNOPSIS

    $ dmoss-process package-1.0.tgz
    Data saved as dmoss.data

    $ dmoss-process http://some_url/package-1.0.tgz
    Data saved as dmoss.data

=head1 DESCRIPTION

C<dmoss-process> is a front-end to the DMOSS toolkit. It can be used
to process a software package. The data is saved by debault to
C<dmoss.data>.

To build a report from the gathered data view the C<dmoss-report>
tool.