#!perl

=head2 Has No Sears

Reports which records have sears (counts).
Prints out 1 file, records with no Sears SH. 

=head2 KNOWN PROBLEMS

May crash if 2nd indicator is 7 but subfield 2 does not exist.
This should not be the case for the records this script is used on--those from Macola, which should have passed the lintallchecksQBI.pl checks.

File naming on Mac could be improved by safety checks on length of name. Workaround is not supplying names that are too long.

=cut

###########################
### Initialize includes ###
### and basic needs     ###
###########################
use strict;
use warnings;
use MARC::Batch;
use MARC::BBMARC;
##########################
## Time coding routines ##
## Print start time and ##
## set start variable   ##
##########################

use Time::HiRes qw(  tv_interval );
# measure elapsed time 
my $t0 = [Time::HiRes::time()];
my $startingtime = MARC::BBMARC::startstop_time();
#########################
### Start main program ##
#########################

print ("Welcome to the Has No Sears script\n");

##### File handling initialization ######
#prompt for input file
print ("What is the input file? ");
my $inputfile=<>;
chomp $inputfile;
$inputfile =~ s/^\"(.*)\"$/$1/;
#print ("What is the export file for records with Sears?\n");
#print ("Note: This name will be used for both the .txt and the .mrc of records with Sears: ");
#my $exportfile = <>;
#chomp $exportfile;
#$exportfile =~ s/^\"(.*)\"$/$1/;
print ("What is the export file for records without sears? ");
my $exportfilenosears = <>;
chomp $exportfilenosears;
$exportfilenosears =~ s/^\"(.*)\"$/$1/;

#cleanup the filenames
#$exportfile .= '.txt' unless $exportfile =~ /\.txt$/;

#append '.mrc' to export file for raw MARC of records with Sears
#my $exportmarcwithsears = $exportfile.'.mrc';
#remove .txt before .mrc
#$exportmarcwithsears =~ s/\.txt\.mrc/\.mrc/i;

#append .mrc to non-Sears file
$exportfilenosears .= '.mrc' unless $exportfilenosears =~ /\.mrc$/i;

#open(OUTTXT, ">$exportfile") or die "Can not open $exportfile, $!";
#open(OUTMARCSEARS, ">$exportmarcwithsears") or die "Can not open $exportmarcwithsears, $!";

open(OUTNOSEARS, ">$exportfilenosears") or die "Can not open $exportfilenosears, $!";

#if using MacPerl, set creator and type to BBEdit and Text
if ($^O eq 'MacOS') {
#MacPerl::SetFileInfo('R*ch', 'TEXT', $exportfile);
#MacPerl::SetFileInfo('R*ch', 'TEXT', $exportmarcwithsears);
MacPerl::SetFileInfo('R*ch', 'TEXT', $exportfilenosears);

}

#initialize $batch as new MARC::Batch object
my $batch = MARC::Batch->new('USMARC', "$inputfile");
########## Start extraction #########

############################################
# Set start time for main calculation loop #
############################################
my $t1 = [Time::HiRes::time()];
my $runningrecordcount=0;
###################################################
my $hassearscount = 0;
my $nosearscount = 0;
#### Start while loop through records in file #####
while (my $record = $batch->next()) {
	my $controlno = $record->field('001')->as_string();
	my $title = $record->field('245')->subfield('a');
	my @subjects = $record->field('6..');
	my $hassears = 0;
	#account for works with no SH
	unless (@subjects) {
		print $controlno, "\t", $title, "\thas no subject headings.\n";
		$hassears = 1;
	}
	foreach my $subject (@subjects) {
		$hassears++ if (($subject->indicator(2) == 7) && ($subject->subfield('2') eq 'sears'));
		last if $hassears; 
	}
	if ($hassears) {
		#print OUTTXT "$controlno\t$title\tHAS SEARS\n";
		$hassearscount++;
		#print OUTMARCSEARS $record->as_usmarc();
	}
	else {
		print OUTNOSEARS $record->as_usmarc();
		$nosearscount++;
	}
###################################################
### add to count for user notification ###
$runningrecordcount++;
MARC::BBMARC::counting_print ($runningrecordcount);
###################################################
} # while

print "$hassearscount records have Sears\n";
print "$nosearscount records do not have Sears\n";
print "$runningrecordcount records scanned\n";
close $inputfile;
#close OUTTXT;
#close OUTMARCSEARS;
close OUTNOSEARS;
##########################
### Main program done.  ##
### Report elapsed time.##
##########################

my $elapsed = tv_interval ($t0);
my $calcelapsed = tv_interval ($t1);
print sprintf ("%.4f %s\n", "$elapsed", "seconds from execution\n");
print sprintf ("%.4f %s\n", "$calcelapsed", "seconds to calculate\n");
my $endingtime = MARC::BBMARC::startstop_time();
print "Started at $startingtime\nEnded at $endingtime";


print "\n\nPress Enter to quit";
<>;


#####################
### END OF PROGRAM ##
#####################

=head1 LICENSE

This code may be distributed under the same terms as Perl itself. 

Please note that this code is not a product of or supported by the 
employers of the various contributors to the code.

=head1 AUTHOR

Bryan Baldus
eija [at] inwave [dot] com

Copyright (c) 2003-2004

=cut