use strict (qw(vars));
-use Data::Dumper;
+use HTTP::Request;
+use IO::File;
+use POSIX;
+use LWP::UserAgent;
+use XML::Parser;
# $commod{'Hemp'}{Buy|Sell}{'stall'}{Stall}
# $commod{'Hemp'}{Buy|Sell}{'stall'}{Price}
}
}
-our $arbitrage_only= 0;
-
sub main__arbitrage () {
my @arbs= ();
foreach $commod (sort keys %commod) {
}
my $allprofit;
- return unless @arbs;
+ if (!@arbs) {
+ print "No arbitrage opportunities.\n" or die $!;
+ return;
+ }
my $bigdiv= <<END;
=============+=========================+=========================+=============
END
$current= $commod{$commod};
my $buys= bs_p($commod,Buy, -1);
my $sells= bs_p($commod,Sell,+1);
- if ($arbitrage_only) {
- }
printf("%-15.15s", $commod) or die $!;
bs_p_bestprice($buys);
bs_p_bestprice($sells);
}
}
+
+our (%commodmap);
+our ($pctb) = 'http://pctb.ilk.org/';
+our ($ua)= LWP::UserAgent->new;
+
+sub load_commodmap() {
+ undef %commodmap;
+ my $c= new IO::File "#commodmap#.tsv";
+ if (!$c) { $!==&ENOENT or die $!; return; }
+ while (<$c>) {
+ m/^(\S.*\S)\t(\d+)\n$/ or die "$_";
+ $commodmap{$1}= $2;
+ }
+ $c->error and die $!;
+ close $c;
+}
+
+sub refresh_commodmap() {
+ my $resp= $ua->get("$pctb/commodmap.php?version=2");
+ die $resp->status_line unless $resp->is_success;
+
+ my $cdata='';
+ my $incommodmap=0;
+ my $intag='';
+ my %got;
+ my $o= new IO::File "#commodmap#.tsv.new",'w' or die $!;
+ undef %commodmap;
+
+ my $xp= new XML::Parser
+ (Handlers =>
+ {
+ Start => sub {
+ $_=$_[1];
+#print STDERR "START [$_] intag=$intag icm=$incommodmap\n";
+ if (m/^commodmap$/i) {
+ $incommodmap++;
+ undef %got;
+ } elsif (m/^(?:name|index)$/i) {
+ $cdata='';
+ $intag=lc($_) if $incommodmap;
+#print STDERR "START RECOGNISED $intag icm=$incommodmap\n";
+# } else {
+#print STDERR "START UNRECOGNISED\n";
+ }
+ },
+ End => sub {
+ $_=$_[1];
+#print STDERR "END [$_] intag=$intag icm=$incommodmap\n";
+ if (m/^commodmap$/i) {
+ $incommodmap--;
+ die unless exists $got{'name'};
+ die unless exists $got{'index'};
+ die unless $got{'index'} =~ m/^\s*([1-9]\d{0,3})\s*$/;
+ my $index= $1;
+ $_= $got{'name'};
+ s/^\s+//; s/\s+$//; s/\n/ /g; s/\s+/ /;
+ die "$_ ?" if exists $commodmap{$_};
+ $commodmap{$_}= $index;
+ print $o "$_\t$index\n" or die $!;
+ } elsif (lc $_ eq $intag) {
+ $got{$intag}= $cdata;
+ }
+ },
+ Char => sub {
+#print STDERR "CHAR [$_[1]] intag=$intag icm=$incommodmap\n";
+ $cdata .= $_[1];
+ }
+ }) or die;
+ my $content= $resp->content;
+
+# print STDERR "[[[$content]]]\n";
+ $xp->parse($content);
+ close $o or die $!;
+ rename "#commodmap#.tsv.new","#commodmap#.tsv" or die $!;
+}
+
+our (%stallmap, @stallmap);
+
+sub bs_gen_md ($$) {
+ my ($bs,$sortmul) = @_;
+ my $count= 0;
+ my $o= '';
+
+ foreach $commod (sort {
+ $commodmap{$a} <=> $commodmap{$b}
+ } keys %commod) {
+#print STDERR "COMMOD $commod\n";
+ $current= $commod{$commod};
+ my $l= bs_p($commod,$bs,$sortmul);
+ next unless @$l;
+#print STDERR "COMMOD $commod has ".scalar(@$l)."\n";
+ $o .= writeint($commodmap{$commod});
+ $o .= writeint(scalar @$l);
+ foreach my $cs (@$l) {
+ $stall= $cs->{Stall};
+ my $stallix= $stallmap{$stall};
+ if (!defined $stallix) {
+ push @stallmap, $stall;
+ $stallmap{$stall}= $stallix= @stallmap;
+#print STDERR "STALL DEF $stallix $stall\n";
+ }
+ my $qty= $cs->{Qty};
+ $qty =~ s/^\>\s*//;
+ $o .= writeint($stallix, $cs->{Price}, $qty+0);
+ $count++;
+ }
+ }
+#print STDERR "COMMOD $commod COUNT WAS $count\n";
+ return
+ writeint($count).$o;
+}
+
+sub writeint { return pack 'v*', @_; }
+
+sub genmarketdata () {
+ our $version= '005b';
+
+ load_commodmap();
+ my @missing= grep { !exists $commodmap{$_} } keys %commod;
+ if (@missing) {
+ refresh_commodmap();
+ my $missing=0;
+ foreach $commod (sort keys %commod) {
+ next if exists $commodmap{$commod};
+ printf STDERR "Unknown commodity \`%s'!\n", $commod;
+ $missing++;
+ }
+ die "$missing unknown commoditi(es). OCR failure?\n"
+ if $missing;
+ }
+
+ my $ob='';
+ $ob .= bs_gen_md(Buy, -1);
+ $ob .= bs_gen_md(Sell,+1);
+
+ my $ot= sprintf("$version\n".
+ "%d\n",
+ scalar(@stallmap));
+ foreach $stall (@stallmap) { $ot .= "$stall\n"; }
+ return $ot.$ob;
+}
+
+sub main__genmarketdata () {
+ my $o= genmarketdata();
+ print $o or die $!;
+}
+
sub main__upload () {
- die "\nUploading not yet implemented, sorry.\n";
+ my $o= genmarketdata();
+ my $url= "$pctb/upload.php";
+ $url= "http://www.chiark.greenend.org.uk/ucgi/~ijackson/check/upload.php";
+ my $content= {
+ 'marketdata' => [ undef, "marketdata.gz",
+ Content_Type => 'application/gzip',
+ Content => $o
+ ]
+ };
+ my $resp= $ua->post("$url", Content => $content,
+ Content_Type => 'form-data');
+ die $resp->status_line unless $resp->is_success;
+
+ print "[[ ",$resp->content," ]]\n";
}
+
$mode =~ s/\-//;
&{"main__$mode"};
close(STDOUT) or die $!;