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321 lines
7.4 KiB
Perl
321 lines
7.4 KiB
Perl
#
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# the dx spot handler
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#
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# Copyright (c) - 1998 Dirk Koopman G1TLH
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#
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# $Id$
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#
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package Spot;
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use IO::File;
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use DXVars;
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use DXDebug;
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use DXUtil;
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use DXLog;
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use Julian;
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use Prefix;
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use DXDupe;
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use strict;
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use vars qw($fp $maxspots $defaultspots $maxdays $dirprefix $duplth $dupage $filterdef);
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$fp = undef;
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$maxspots = 50; # maximum spots to return
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$defaultspots = 10; # normal number of spots to return
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$maxdays = 3*31; # normal maximum no of days to go back
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$dirprefix = "spots";
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$duplth = 20; # the length of text to use in the deduping
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$dupage = 3*3600; # the length of time to hold spot dups
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$filterdef = bless ([
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# tag, sort, field, priv, special parser
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['freq', 'r', 0, 0, \&decodefreq],
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['on', 'r', 0, 0, \&decodefreq],
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['call', 'c', 1],
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['info', 't', 3],
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['by', 'c', 4],
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['call_dxcc', 'n', 5],
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['by_dxcc', 'n', 6],
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['origin', 'c', 7, 9],
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['call_itu', 'n', 8],
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['call_zone', 'n', 9],
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['by_itu', 'n', 10],
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['by_zone', 'n', 11],
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['channel', 'n', 12, 9],
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], 'Filter::Cmd');
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# create a Spot Object
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sub new
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{
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my $class = shift;
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my $self = [ @_ ];
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return bless $self, $class;
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}
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sub decodefreq
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{
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my $dxchan = shift;
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my $l = shift;
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my @f = split /,/, $l;
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my @out;
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my $f;
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foreach $f (@f) {
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my ($a, $b);
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if (m{^\d+/\d+$}) {
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push @out, $f;
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} elsif (($a, $b) = $f =~ m{^(\w+)(?:/(\w+))?$}) {
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$b = lc $b if $b;
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my @fr = Bands::get_freq(lc $a, $b);
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if (@fr) {
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while (@fr) {
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$a = shift @fr;
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$b = shift @fr;
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push @out, "$a/$b"; # add them as ranges
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}
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} else {
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return ('dfreq', $dxchan->msg('dfreq1', $f));
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}
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} else {
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return ('dfreq', $dxchan->msg('e20', $f));
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}
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}
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return (0, join(',', @out));
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}
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sub init
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{
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mkdir "$dirprefix", 0777 if !-e "$dirprefix";
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$fp = DXLog::new($dirprefix, "dat", 'd');
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}
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sub prefix
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{
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return $fp->{prefix};
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}
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# add a spot to the data file (call as Spot::add)
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sub add
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{
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my @spot = @_; # $freq, $call, $t, $comment, $spotter = @_
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my @out = @spot[0..4]; # just up to the spotter
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# normalise frequency
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$spot[0] = sprintf "%.f", $spot[0];
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# remove ssids if present on spotter
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$out[4] =~ s/-\d+$//o;
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# remove leading and trailing spaces
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$spot[3] = unpad($spot[3]);
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# add the 'dxcc' country on the end for both spotted and spotter, then the cluster call
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my @dxcc = Prefix::extract($out[1]);
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my $spotted_dxcc = (@dxcc > 0 ) ? $dxcc[1]->dxcc() : 0;
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my $spotted_itu = (@dxcc > 0 ) ? $dxcc[1]->itu() : 0;
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my $spotted_cq = (@dxcc > 0 ) ? $dxcc[1]->cq() : 0;
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push @out, $spotted_dxcc;
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@dxcc = Prefix::extract($out[4]);
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my $spotter_dxcc = (@dxcc > 0 ) ? $dxcc[1]->dxcc() : 0;
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my $spotter_itu = (@dxcc > 0 ) ? $dxcc[1]->itu() : 0;
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my $spotter_cq = (@dxcc > 0 ) ? $dxcc[1]->cq() : 0;
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push @out, $spotter_dxcc;
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push @out, $spot[5];
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my $buf = join("\^", @out);
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# compare dates to see whether need to open another save file (remember, redefining $fp
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# automagically closes the output file (if any)).
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$fp->writeunix($out[2], $buf);
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return (@out, $spotted_itu, $spotted_cq, $spotter_itu, $spotter_cq);
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}
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# search the spot database for records based on the field no and an expression
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# this returns a set of references to the spots
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#
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# the expression is a legal perl 'if' statement with the possible fields indicated
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# by $f<n> where :-
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#
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# $f0 = frequency
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# $f1 = call
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# $f2 = date in unix format
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# $f3 = comment
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# $f4 = spotter
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# $f5 = spotted dxcc country
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# $f6 = spotter dxcc country
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# $f7 = origin
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#
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#
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# In addition you can specify a range of days, this means that it will start searching
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# from <n> days less than today to <m> days less than today
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#
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# Also you can select a range of entries so normally you would get the 0th (latest) entry
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# back to the 5th latest, you can specify a range from the <x>th to the <y>the oldest.
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#
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# This routine is designed to be called as Spot::search(..)
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#
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sub search
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{
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my ($expr, $dayfrom, $dayto, $from, $to, $hint) = @_;
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my $eval;
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my @out;
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my $ref;
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my $i;
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my $count;
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my @today = Julian::unixtoj(time());
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my @fromdate;
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my @todate;
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$dayfrom = 0 if !$dayfrom;
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$dayto = $maxdays if !$dayto;
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@fromdate = Julian::sub(@today, $dayfrom);
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@todate = Julian::sub(@fromdate, $dayto);
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$from = 0 unless $from;
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$to = $defaultspots unless $to;
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$hint = $hint ? "next unless $hint" : "";
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$expr = "1" unless $expr;
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$to = $from + $maxspots if $to - $from > $maxspots || $to - $from <= 0;
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$expr =~ s/\$f(\d)/\$ref->[$1]/g; # swap the letter n for the correct field name
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# $expr =~ s/\$f(\d)/\$spots[$1]/g; # swap the letter n for the correct field name
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dbg("search", "hint='$hint', expr='$expr', spotno=$from-$to, day=$dayfrom-$dayto\n");
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# build up eval to execute
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$eval = qq(
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while (<\$fh>) {
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$hint;
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chomp;
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push \@spots, [ split '\\^' ];
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}
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my \$c;
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my \$ref;
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for (\$c = \$#spots; \$c >= 0; \$c--) {
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\$ref = \$spots[\$c];
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if ($expr) {
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\$count++;
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next if \$count < \$from; # wait until from
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push(\@out, \$ref);
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last if \$count >= \$to; # stop after to
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}
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}
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);
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$fp->close; # close any open files
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for ($i = $count = 0; $i < $maxdays; ++$i) { # look thru $maxdays worth of files only
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my @now = Julian::sub(@fromdate, $i); # but you can pick which $maxdays worth
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last if Julian::cmp(@now, @todate) <= 0;
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my @spots = ();
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my $fh = $fp->open(@now); # get the next file
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if ($fh) {
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my $in;
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eval $eval; # do the search on this file
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last if $count >= $to; # stop after to
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return ("Spot search error", $@) if $@;
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}
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}
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return @out;
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}
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# change a freq range->regular expression
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sub ftor
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{
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my ($a, $b) = @_;
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return undef unless $a < $b;
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$b--;
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my $d = $b - $a;
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my @a = split //, $a;
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my @b = split //, $b;
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my $out;
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while (@b > @a) {
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$out .= shift @b;
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}
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while (@b) {
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my $aa = shift @a;
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my $bb = shift @b;
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if (@b < (length $d) - 1) {
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$out .= '\\d';
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} elsif ($aa eq $bb) {
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$out .= $aa;
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} elsif ($aa < $bb) {
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$out .= "[$aa-$bb]";
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} else {
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$out .= "[0-$bb$aa-9]";
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}
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}
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return $out;
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}
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# format a spot for user output in 'broadcast' mode
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sub formatb
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{
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my $wantgrid = shift;
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my $t = ztime($_[2]);
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my $ref = DXUser->get_current($_[4]);
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my $loc = $ref->qra if $ref && $ref->qra && $wantgrid;
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$loc = ' ' . substr($ref->qra, 0, 4) if $loc;
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$loc = "" unless $loc;
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return sprintf "DX de %-7.7s%11.1f %-12.12s %-30s %s$loc", "$_[4]:", $_[0], $_[1], $_[3], $t ;
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}
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# format a spot for user output in list mode
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sub formatl
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{
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my $t = ztime($_[2]);
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my $d = cldate($_[2]);
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return sprintf "%8.1f %-11s %s %s %-28.28s%7s>", $_[0], $_[1], $d, $t, $_[3], "<$_[4]" ;
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}
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#
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# return all the spots from a day's file as an array of references
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# the parameter passed is a julian day
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sub readfile
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{
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my @spots;
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my $fh = $fp->open(@_);
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if ($fh) {
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my $in;
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while (<$fh>) {
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chomp;
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push @spots, [ split '\^' ];
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}
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}
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return @spots;
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}
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# enter the spot for dup checking and return true if it is already a dup
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sub dup
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{
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my ($freq, $call, $d, $text) = @_;
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# dump if too old
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return 2 if $d < $main::systime - $dupage;
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$freq = sprintf "%.1f", $freq; # normalise frequency
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chomp $text;
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$text = substr($text, 0, $duplth) if length $text > $duplth;
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unpad($text);
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$text =~ s/[\\\%]\d+//g;
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$text =~ s/[^a-zA-Z0-9]//g;
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my $dupkey = "X$freq|$call|$d|\L$text";
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return DXDupe::check($dupkey, $main::systime+$dupage);
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}
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sub listdups
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{
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return DXDupe::listdups('X', $dupage, @_);
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}
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1;
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