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 () {
- $arbitrage_only= 1;
- main__bestprices();
+ my @arbs= ();
+ foreach $commod (sort keys %commod) {
+ $current= $commod{$commod};
+ my @buys= @{ bs_p($commod,Buy, -1) };
+ my @sells= @{ bs_p($commod,Sell,+1) };
+ my $profit= 0;
+ my $cqty= 0;
+ my $info= '';
+ my $arbs= [];
+ for (;;) {
+#print Dumper($commod,\@buys,\@sells);
+ last unless @buys;
+ last unless @sells;
+ my $pricediff= $buys[0]{Price} - $sells[0]{Price};
+ last unless $pricediff > 0;
+ our $qty= 1000;
+ sub arb_check_qty (\@) {
+ my ($verbs) = @_;
+ my $vqty= $verbs->[0]{Qty};
+ return if $vqty =~ m/^\>/;
+ $qty= $vqty if $qty > $vqty;
+ return if $vqty;
+ my $verb= shift @$verbs;
+ }
+ arb_check_qty(@buys);
+ arb_check_qty(@sells);
+ next unless $qty;
+ my $tprofit= $qty*$pricediff;
+ $profit += $tprofit;
+ $cqty += $qty;
+
+ $info.=
+ sprintf("%-13.13s| %-19.19s %4d| %-19.19s %4d|%3d x%3d =%3d\n",
+ $commod,
+ $buys[0]{Stall},$buys[0]{Price},
+ $sells[0]{Stall},$sells[0]{Price},
+ $qty, $pricediff, $tprofit);
+ sub arb_subtract_qty (\@) {
+ my ($verbs) = @_;
+ my $verb= shift @$verbs;
+ unshift @$verbs, {
+ Stall => $verb->{Stall},
+ Price => $verb->{Price},
+ Qty => $verb->{Qty} - $qty
+ };
+ }
+ arb_subtract_qty(@buys);
+ arb_subtract_qty(@sells);
+ }
+ next unless $profit;
+ $info.=
+ sprintf("%-13.13s| %19s %4s| %19s %4s|%3d %4d\n",
+ $commod, '','', '','', $cqty, $profit);
+ push @arbs, { Profit => $profit, Info => $info };
+ }
+ my $allprofit;
+
+ if (!@arbs) {
+ print "No arbitrage opportunities.\n" or die $!;
+ return;
+ }
+ my $bigdiv= <<END;
+=============+=========================+=========================+=============
+END
+
+ print <<END or die $!;
+
+commodity | seller price| buyer price| qty ea prof
+END
+
+ my $div= $bigdiv;
+ foreach my $arb (sort {
+ $b->{Profit} <=> $a->{Profit};
+ } @arbs) {
+ print $div,$arb->{Info} or die $1;
+ $div= <<END;
+-------------+-------------------------+-------------------------+-------------
+END
+ $allprofit += $arb->{Profit};
+ }
+ print $bigdiv or die $!;
+ printf("%-13.13s %19s %4s %19s %4s %-5s %7d\n",
+ '', '','', '','', 'TOTAL', $allprofit)
+ or die $!;
}
sub main__bestprices () {
my $buys= bs_p($commod,Buy, -1);
my $sells= bs_p($commod,Sell,+1);
if ($arbitrage_only) {
- next unless @$buys and @$sells;
- next unless $buys->[0]{Price} > $sells->[0]{Price};
}
printf("%-15.15s", $commod) or die $!;
bs_p_bestprice($buys);
}
}
+
+our (%commodmap);
+our ($pctb) = 'http://pctb.ilk.org/';
+our ($ua);
+
+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 $ua= LWP::UserAgent->new;
+ my $resp= $ua->get("$pctb/commodmap.php");
+ 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 $!;
+
+ 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;
+
+ # hacks to strip off drivel that seems to have been added!
+ $content =~ s/^.*\n(\<\?xml)/$1/s;
+ $content =~ s/\<\/body\>.*//s;
+ print STDERR "[[[$content]]]\n";
+ $xp->parse($content);
+ close $o or die $!;
+ rename "#commodmap#.tsv.new","#commodmap#.tsv" or die $!;
+}
+
+#
+#sub bs_gen_md ($) {
+# my ($bs) = @_;
+
+
+sub main__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};
+ print STDERR "Unknown commodity \`%s'!\n";
+ $missing++;
+ }
+ die "$missing unknown commodities. OCR failure?\n"
+ if $missing;
+ }
+
+ # foreach $commod (sort keys %commod) {
+# next if
+
+
+# bs_gen_md(Buy);
+# bs_gen_md(Sell);
+}
+
+
sub main__upload () {
die "\nUploading not yet implemented, sorry.\n";
}
+
$mode =~ s/\-//;
&{"main__$mode"};
close(STDOUT) or die $!;
~yarrgweb / ypp-sc-tools.db-test.git / blobdiff