#!/usr/bin/perl
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use strict;
use warnings;

# fix lib paths, some may be relative
BEGIN { # BEGIN RT CMD BOILERPLATE
    require File::Spec;
    require Cwd;
    my @libs = ("/usr/local/libdata/perl5/site_perl", "/usr/local/libdata/perl5/site_perl");
    my $bin_path;

    for my $lib (@libs) {
        unless ( File::Spec->file_name_is_absolute($lib) ) {
            $bin_path ||= ( File::Spec->splitpath(Cwd::abs_path(__FILE__)) )[1];
            $lib = File::Spec->catfile( $bin_path, File::Spec->updir, $lib );
        }
        unshift @INC, $lib;
    }

}

my %args;
use Getopt::Long;
GetOptions( \%args, 'help|h', 'content|c' );

my ($name, $search) = @ARGV;

if ($args{help} || @ARGV < 2) {
    require Pod::Usage;
    Pod::Usage::pod2usage({ verbose => 2 });
    exit;
}

require RT;
RT::LoadConfig();
RT::Init();

require RT::Attribute;
my $attrs = RT::Attributes->new( RT->SystemUser );

# search for name
$attrs->Limit(
    FIELD    => 'Name',
    OPERATOR => 'LIKE',
    VALUE    => $name,
    CASESENSITIVE => 0,
);

my @fields = qw(Id ObjectType ObjectId Name Description);

use Data::Dumper;

my $predicate = eval '
    sub {
        my $attr = shift;
        my (      $Id,       $ObjectType,       $ObjectId,       $Name,       $Description,       $Content) =
           ($attr->Id, $attr->ObjectType, $attr->ObjectId, $attr->Name, $attr->Description, $attr->Content);

        # allow lowercase to be kind
        my ($id, $objecttype, $objectid, $name, $description, $content) =
           ($Id, $ObjectType, $ObjectId, $Name, $Description, $Content);

        # shorthand for content
        local $_ = $attr->Content;

        # return executed search code
        ' .
        $search .';'.
   '}';

die $@ if ($@);

while ( my $attr = $attrs->Next ) {
    # search for desired field
    if ($predicate->($attr)) {
        # print attribute's information
        foreach my $field ( @fields ) {
            print "$field: " . $attr->$field . "\n";
        }
        # print content
        print Data::Dumper->Dump([$attr->Content], ['Content']) if ($args{content});
        print "\n";
    }
}


__END__

=head1 NAME

rt-search-attributes - search RT::Attribute objects

=head1 SYNOPSIS

rt-search-attributes [OPTION] ATTRIBUTE_NAME QUALIFYING_CODE

=head1 DESCRIPTION

This script searches all attributes named ATTRIBUTE_NAME with qualifying
code QUALIFYING_CODE and prints out the details of matching attributes.

QUALIFYING_CODE can use a number of variables to call on RT::Attribute's
properties:
   $Id, $ObjectType, $ObjectId, $Name, $Description, $Content
   $_ is available as shorthand for $Content

-c, --content
    Print attribute content

-h, --help
    Display this help and exit

e.g.

rt-search-attributes SavedSearch '$id > 10'
rt-search-attributes Search '$_->{Query} =~ /Status/'
