create log file with date,tag,number

diff --git a/scripts/scan.pl b/scripts/scan.pl
index ec61fd5..dd281a7 100755 (executable)
--- a/scripts/scan.pl
+++ b/scripts/scan.pl
@@ -12,11 +12,13 @@ use Biblio::RFID::RFID501;
 my $loop = 0;
 my $reader;
 my $debug = 0;
+my $log;
 
 GetOptions(
        'loop!'     => \$loop,
        'reader=s', => \$reader,
        'debug+'    => \$debug,
+       'log=s'     => \$log,
 ) || die $!;
 
 my $rfid = Biblio::RFID::Reader->new( $reader );
@@ -33,20 +35,36 @@ sub tag {
                ;
 }
 
+my $saved;
+
+sub iso_date {
+       my @t = localtime(time);
+       return sprintf "%04d-%02d-%02dT%02d:%02d:%02d", $t[5]+1900,$t[4]+1,$t[3],$t[2],$t[1],$t[0];
+}
+
+sub log_tag {
+       my $tag = shift;
+       return if $saved->{tag};
+       my $hash = Biblio::RFID::RFID501->to_hash( $rfid->blocks($tag) );
+       open(my $fh, '>>', $log) || die "$log: $!";
+       print $fh iso_date,",$tag,", $hash->{content}, "\n";
+       close($fh);
+}
+
 do {
        my @visible = $rfid->tags(
                enter => sub {
                        my $tag = shift;
-                       print localtime()." enter ", tag($tag);
-
+                       print iso_date," enter ", tag($tag);
+                       log_tag $tag;
                },
                leave => sub {
                        my $tag = shift;
-                       print localtime()." leave ", tag($tag);
+                       print iso_date," leave ", tag($tag);
                },
        );
 
-       warn localtime()." visible: ",join(' ',@visible),"\n";
+       warn iso_date," visible: ",join(' ',@visible),"\n";
 
        sleep 1;