+<& dumptable:start, qa => $qa, sth => $sth &>
+% {
+% my $got;
+% while ($got= $sth->fetchrow_hashref()) {
+<%perl>
+
+ my $f= $flows[$#flows];
+ if ( !$f ||
+ $qa->{ShowStalls} ||
+ grep { $f->{$_} ne $got->{$_} }
+ qw(org_id org_price dst_id dst_price commodid)
+ ) {
+ # Make a new flow rather than adding to the existing one
+
+ $f= {
+ Ix => scalar(@flows),
+ %$got
+ };
+ $f->{"org_stallid"}= $f->{"dst_stallid"}= 'all'
+ if !$qa->{ShowStalls};
+ push @flows, $f;
+ }
+ foreach my $od (qw(org dst)) {
+ $f->{"${od}Stalls"}{
+ $got->{"${od}_stallname"}
+ } =
+ $got->{"${od}_qty_stall"}
+ ;
+ }
+
+</%perl>
+<& dumptable:row, qa => $qa, sth => $sth, row => $f &>
+% }
+<& dumptable:end, qa => $qa &>
+% }
+
+% if (@islandids==1) {
+% if (defined $islandids[0]) {
+Searched for arbitrage trades only.
+% } else {
+Searched for arbitrage trades only, in <% $archipelagoes[0] |h %>
+<a href="docs#arbitrage">[?]</a>.
+% }
+% }
+
+<%perl>
+
+my @sail_total;
+
+if (!@flows) {
+ print 'No profitable trading opportunities were found.';
+ return;
+}
+
+foreach my $f (@flows) {
+
+ $f->{MaxQty}= $f->{'org_qty_agg'} < $f->{'dst_qty_agg'}
+ ? $f->{'org_qty_agg'} : $f->{'dst_qty_agg'};
+ $f->{MaxProfit}= $f->{MaxQty} * $f->{'unitprofit'};
+ $f->{MaxCapital}= $f->{MaxQty} * $f->{'org_price'};
+
+ $f->{MaxMassSortKey}= $f->{MaxQty} * $f->{'unitmass'};
+ $f->{MaxVolumeSortKey}= $f->{MaxQty} * $f->{'unitvolume'};
+ foreach my $v (qw(Mass Volume)) {
+ $f->{"Max$v"}= sprintf "%.1f", $f->{"Max${v}SortKey"} * 1e-6;
+ }
+
+ $f->{MarginSortKey}= sprintf "%d",
+ $f->{'dst_price'} * 10000 / $f->{'org_price'};
+ $f->{Margin}= sprintf "%3.1f%%",
+ $f->{'dst_price'} * 100.0 / $f->{'org_price'} - 100.0;
+
+ $f->{ExpectedUnitProfit}=
+ $f->{'dst_price'} * (1.0 - $loss_per_league) ** $f->{'dist'}
+ - $f->{'org_price'};
+
+ $dists{'org_id'}{'dst_id'}= $f->{'dist'};
+
+ my @uid= $f->{commodid};
+ foreach my $od (qw(org dst)) {
+ push @uid,
+ $f->{"${od}_id"},
+ $f->{"${od}_price"};
+ push @uid,
+ $f->{"${od}_stallid"}
+ if $qa->{ShowStalls};
+ }
+ $f->{UidLong}= join '_', @uid;
+
+ my $base= 31;
+ my $cmpu= '';
+ map {
+ my $uue= $_;
+ my $first= $base;
+ do {
+ my $this= $uue % $base;
+#print STDERR "uue=$uue this=$this ";
+ $uue -= $this;
+ $uue /= $base;
+ $this += $first;
+ $first= 0;
+ $cmpu .= chr($this + ($this < 26 ? ord('a') :
+ $this < 52 ? ord('A')-26
+ : ord('0')-52));
+#print STDERR " uue=$uue this=$this cmpu=$cmpu\n";
+ die "$cmpu $uue ?" if length $cmpu > 20;
+ } while ($uue);
+ $cmpu;
+ } @uid;
+ $f->{UidShort}= $cmpu;
+
+ if ($qa->{'debug'}) {
+ my @outuid;
+ $_= $f->{UidShort};
+ my $mul;
+ while (m/./) {
+ my $v= m/^[a-z]/ ? ord($&)-ord('a') :
+ m/^[A-Z]/ ? ord($&)-ord('A')+26 :
+ m/^[0-9]/ ? ord($&)-ord('0')+52 :
+ die "$_ ?";
+ if ($v >= $base) {
+ push @outuid, 0;
+ $v -= $base;
+ $mul= 1;
+#print STDERR "(next)\n";
+ }
+ die "$f->{UidShort} $_ ?" unless defined $mul;
+ $outuid[$#outuid] += $v * $mul;
+
+#print STDERR "$f->{UidShort} $_ $& v=$v mul=$mul ord()=".ord($&).
+# "[vs.".ord('a').",".ord('A').",".ord('0')."]".
+# " outuid=@outuid\n";
+
+ $mul *= $base;
+ s/^.//;
+ }
+ my $recons_long= join '_', @outuid;
+ $f->{UidLong} eq $recons_long or
+ die "$f->{UidLong} = $f->{UidShort} = $recons_long ?";
+ }
+
+ if (defined $qa->{"R$f->{UidShort}"} &&
+ !defined $qa->{"T$f->{UidShort}"}) {
+ $f->{Suppress}= 1;
+ } else {
+ my $sfis= $ipair2subflowinfs{$f->{'org_id'},$f->{'dst_id'}};
+ foreach my $sfi (@$sfis) {
+ my $subflow= {
+ Flow => $f,
+ Org => $sfi->[0],
+ Dst => $sfi->[1],
+ Var => sprintf "f%ss%s_c%d_p%d_%d_p%d_%d",
+ $f->{Ix}, $sfi->[0],
+ $f->{'commodid'},
+ $sfi->[0], $f->{'org_price'},
+ $sfi->[1], $f->{'dst_price'}
+ };
+ push @{ $f->{Subflows} }, $subflow;
+ push @subflows, $subflow;
+ }
+ }
+}
+</%perl>
+
+% my $optimise= $specific;
+% if (!$optimise) {
+
+<p>
+% if (!$specific) {
+Route contains archipelago(es), not just specific islands.
+% }
+Therefore, optimal voyage trade plan not calculated.
+
+% } else { # ========== OPTMISATION ==========
+<%perl>
+
+my $cplex= "
+Maximize
+
+ totalprofit:
+";
+
+foreach my $sf (@subflows) {
+ my $eup= $sf->{Flow}{ExpectedUnitProfit};
+ $eup *= (1.0-$loss_per_delay_slot) ** $sf->{Org};
+ $cplex .= sprintf "
+ %+.20f %s", $eup, $sf->{Var};
+}
+$cplex .= "
+
+Subject To
+";
+
+my %avail_lims;
+foreach my $flow (@flows) {
+ next if $flow->{Suppress};
+ foreach my $od (qw(org dst)) {
+ my $limname= join '_', (
+ $od,
+ 'i'.$flow->{"${od}_id"},
+ 'c'.$flow->{'commodid'},
+ $flow->{"${od}_price"},
+ $flow->{"${od}_stallid"},
+ );
+
+ push @{ $avail_lims{$limname}{SubflowVars} },
+ map { $_->{Var} } @{ $flow->{Subflows} };
+ $avail_lims{$limname}{Qty}= $flow->{"${od}_qty_agg"};
+ }
+}
+foreach my $limname (sort keys %avail_lims) {
+ my $c= $avail_lims{$limname};
+ $cplex .=
+ sprintf(" %-30s","$limname:")." ".
+ join("+", @{ $c->{SubflowVars} }).
+ " <= ".$c->{Qty}."\n";
+}
+
+foreach my $ci (0..($#islandids-1)) {
+ my @rel_subflows;
+
+ foreach my $f (@flows) {
+ next if $f->{Suppress};
+ my @relsubflow= grep {
+ $_->{Org} <= $ci &&
+ $_->{Dst} > $ci;
+ } @{ $f->{Subflows} };
+ next unless @relsubflow;
+ die unless @relsubflow == 1;
+ push @rel_subflows, @relsubflow;
+#print " RELEVANT $ci $relsubflow[0]->{Var} ";
+ }
+#print " RELEVANT $ci COUNT ".scalar(@rel_subflows)." ";
+ if (!@rel_subflows) {
+ foreach my $mv (qw(mass volume)) {
+ $sail_total[$ci]{$mv}= 0;
+ }
+ next;
+ }
+
+ my $applylimit= sub {
+ my ($mv, $f2val) = @_;
+ my $max= $routeparams->{"Max".ucfirst $mv};
+ $max= 1e9 unless defined $max;
+#print " DEFINED MAX $mv $max ";
+ $cplex .= "
+ ". sprintf("%-10s","${mv}_$ci:")." ".
+ join(" + ", map {
+#print " PART MAX $_->{Var} $_->{Flow}{Ix} ";
+ $f2val->($_->{Flow}) .' '. $_->{Var};
+ } @rel_subflows).
+ " <= $max";
+ };
+
+ $applylimit->('mass', sub { $_[0]{'unitmass'} *1e-3 });
+ $applylimit->('volume', sub { $_[0]{'unitvolume'}*1e-3 });
+ $applylimit->('capital', sub { $_[0]{'org_price'} });
+ $cplex.= "\n";
+}
+
+$cplex.= "
+Bounds
+ ".(join "
+ ", map { "$_->{Var} >= 0" } @subflows)."
+
+";
+
+$cplex.= "
+Integer
+ ".(join "
+ ", map { $_->{Var} } @subflows)."
+
+End
+";
+
+if ($qa->{'debug'}) {
+</%perl>
+<pre>
+<% $cplex |h %>
+</pre>
+<%perl>
+}
+
+{
+ my $input= pipethrough_prep();
+ print $input $cplex or die $!;
+ my $output= pipethrough_run_along($input, undef, 'glpsol',
+ qw(glpsol --tmlim 2 --memlim 5 --intopt --cuts --bfs
+ --cpxlp /dev/stdin -o /dev/stdout));
+ print "<pre>\n" if $qa->{'debug'};
+ my $found_section= 0;
+ my $glpsol_out= '';
+ my $continuation='';
+ while (<$output>) {
+ $glpsol_out.= $_;
+ print encode_entities($_) if $qa->{'debug'};
+ if (m/^\s*No\.\s+(Row|Column) name\s+(?:St\s+)?Activity\s/) {
+ die "$_ $found_section ?" if $found_section>0;
+ $found_section= 1;
+ next;
+ }
+ if (m/^Objective:\s+totalprofit = (\d+(?:\.\d*)?) /) {
+ $expected_total_profit= $1;
+ }
+ next unless $found_section==1;
+ if (!length $continuation) {
+ next if !$continuation && m/^[- ]+$/;
+ if (!/\S/) {
+ $found_section= 0;
+ next;
+ }
+ if (m/^ \s* \d+ \s+ \w+ $/x) {
+ $continuation= $&;
+ next;
+ }
+ }
+ $_= $continuation.$_;
+ $continuation= '';
+ my ($varname, $qty) = m/^
+ \s* \d+ \s+
+ (\w+) \s+ (?: [A-Z*]+ \s+ )?
+ ([+-e0-9.]+) \s
+ /x or die "$cplex \n==\n $glpsol_out $_ ?";
+ if ($varname =~ m/^f(\d+)s(\d+)_/) {
+ my ($ix,$orgix) = ($1,$2);
+ my $flow= $flows[$ix] or die;
+ my @relsubflow= grep { $_->{Org} == $orgix }
+ @{ $flow->{Subflows} };
+ die "$ix $orgix @relsubflow" unless @relsubflow == 1;
+ my $sf= $relsubflow[0];
+ $sf->{OptQty}= $qty;
+ $sf->{OptProfit}= $qty * $flow->{'unitprofit'};
+ $sf->{OptCapital}= $qty * $flow->{'org_price'};
+ } elsif ($varname =~ m/^(mass|volume)_(\d+)$/) {
+ my ($mv,$ix) = ($1,$2);
+ $sail_total[$ix]{$mv}= $qty;
+ }
+ }
+ print "</pre>\n" if $qa->{'debug'};
+ my $prerr= "\n=====\n$cplex\n=====\n$glpsol_out\n=====\n ";
+ pipethrough_run_finish($output,$prerr);
+ map { defined $_->{OptQty} or die "$prerr $_->{Flow}{Ix}" } @subflows;
+ defined $expected_total_profit or die "$prerr ?";
+};
+
+$addcols->({ DoReverse => 1, TotalSubflows => 1, Special => sub {
+ my ($flow,$col,$v,$spec) = @_;
+ if ($flow->{ExpectedUnitProfit} < 0) {
+ $spec->{Span}= 3;
+ $spec->{String}= '(Small margin)';
+ $spec->{Align}= 'align=center';
+ }
+} }, qw(
+ OptQty
+ ));
+$addcols->({ Total => 0, DoReverse => 1, TotalSubflows => 1 }, qw(
+ OptCapital OptProfit
+ ));
+
+</%perl>
+
+% } # ========== OPTIMISATION ==========
+
+% if (!printable($m)) {
+<h2>Contents</h2>
+<ul>
+% if ($optimise) {
+ <li><a href="#plan">Voyage trading plan</a>
+ <ul>
+ <li><a href="#summary">Summary statistics</a>
+ <li>Printable:
+ <input type=submit name=printable_pdf value="PDF">
+ <input type=submit name=printable_html value="HTML">
+ <input type=submit name=printable_ps value="PostScript">
+ <input type=submit name=printable_pdf2 value="PDF 2-up">
+ <input type=submit name=printable_ps2 value="PostScript 2-up">
+ </ul>
+% }
+ <li><a href="#dataage">Data age summary</a>
+ <li><a href="#trades">Relevant trades</a>
+</ul>
+% } else {
+% my @tl= gmtime $now or die $!;
+<p>
+Generated by YARRG at <strong><%
+ sprintf "%04d-%02d-%02d %02d:%02d:%02d UTC",
+ $tl[5]+1900, @tl[4,3,2,1,0]
+ |h %></strong>.