@islandids
@archipelagoes
$qa
+$max_mass
+$max_volume
+$lossperleaguepct
+$max_capital
</%args>
+<&| script &>
+ da_pageload= Date.now();
+</&script>
+
<%perl>
+my $loss_per_league= defined $lossperleaguepct ? $lossperleaguepct*0.01 : 1e-7;
+
+my $now= time;
+
my @flow_conds;
my @query_params;
+my %dists;
my $sd_condition= sub {
my ($bs, $ix) = @_;
}
};
+my %islandpair;
+# $islandpair{$a,$b}= [ $start_island_ix, $end_island_ix ]
+
+my $specific= !grep { !defined $_ } @islandids;
+my $confusing= 0;
+
foreach my $src_i (0..$#islandids) {
+ my $src_isle= $islandids[$src_i];
my $src_cond= $sd_condition->('sell',$src_i);
my @dst_conds;
foreach my $dst_i ($src_i..$#islandids) {
+ my $dst_isle= $islandids[$dst_i];
my $dst_cond= $sd_condition->('buy',$dst_i);
- if ($dst_i==$src_i and !defined $islandids[$src_i]) {
+ if ($dst_i==$src_i and !defined $src_isle) {
# we always want arbitrage, but mentioning an arch
# once shouldn't produce intra-arch trades
$dst_cond=
"($dst_cond AND sell.islandid = buy.islandid)";
}
push @dst_conds, $dst_cond;
+
+ if ($specific && !$confusing &&
+ # With a circular route, do not carry goods round the loop
+ !(($src_i==0 || $src_i==$#islandids) &&
+ $dst_i==$#islandids &&
+ $src_isle == $islandids[$dst_i])) {
+ if ($islandpair{$src_isle,$dst_isle}) {
+ $confusing= 1;
+print "confusing $src_i $src_isle $dst_i $dst_isle\n";
+ } else {
+ $islandpair{$src_isle,$dst_isle}=
+ [ $src_i, $dst_i ];
+ }
+ }
}
push @flow_conds, "$src_cond AND (
".join("
SELECT sell_islands.islandname org_name,
sell_islands.islandid org_id,
sell.price org_price,
- sum(sell.qty) org_qty,
+ sell.qty org_qty_stall,
+ sell_stalls.stallname org_stallname,
+ sell.stallid org_stallid,
+ sell_uploads.timestamp org_timestamp,
buy_islands.islandname dst_name,
buy_islands.islandid dst_id,
buy.price dst_price,
- sum(buy.qty) dst_qty,
+ buy.qty dst_qty_stall,
+ buy_stalls.stallname dst_stallname,
+ buy.stallid dst_stallid,
+ buy_uploads.timestamp dst_timestamp,
+".($qa->{ShowStalls} ? "
+ sell.qty org_qty_agg,
+ buy.qty dst_qty_agg,
+" : "
+ (SELECT sum(qty) FROM sell AS sell_agg
+ WHERE sell_agg.commodid = commods.commodid
+ AND sell_agg.islandid = sell.islandid
+ AND sell_agg.price = sell.price) org_qty_agg,
+ (SELECT sum(qty) FROM buy AS buy_agg
+ WHERE buy_agg.commodid = commods.commodid
+ AND buy_agg.islandid = buy.islandid
+ AND buy_agg.price = buy.price) dst_qty_agg,
+")."
commods.commodname commodname,
commods.commodid commodid,
- commods.unitmass mass,
- commods.unitvolume volume,
- buy.price - sell.price unitprofit,
- min(sell.qty,buy.qty) tqty,
- min(sell.qty,buy.qty) * (buy.price-sell.price) profit
+ commods.unitmass unitmass,
+ commods.unitvolume unitvolume,
+ dist dist,
+ buy.price - sell.price unitprofit
FROM commods
- JOIN buy on commods.commodid = buy.commodid
- JOIN sell on commods.commodid = sell.commodid
- JOIN islands as sell_islands on sell.islandid = sell_islands.islandid
- JOIN islands as buy_islands on buy.islandid = buy_islands.islandid
+ JOIN sell ON commods.commodid = sell.commodid
+ JOIN buy ON commods.commodid = buy.commodid
+ JOIN islands AS sell_islands ON sell.islandid = sell_islands.islandid
+ JOIN islands AS buy_islands ON buy.islandid = buy_islands.islandid
+ JOIN uploads AS sell_uploads ON sell.islandid = sell_uploads.islandid
+ JOIN uploads AS buy_uploads ON buy.islandid = buy_uploads.islandid
+ JOIN stalls AS sell_stalls ON sell.stallid = sell_stalls.stallid
+ JOIN stalls AS buy_stalls ON buy.stallid = buy_stalls.stallid
+ JOIN dists ON aiid = sell.islandid AND biid = buy.islandid
WHERE (
".join("
OR ", @flow_conds)."
)
AND buy.price > sell.price
- GROUP BY commodname, commods.commodid,
- org_id, org_price, dst_id, dst_price
- ORDER BY org_name, dst_name, profit DESC, commodname,
- org_price, dst_price DESC
+ ORDER BY org_name, dst_name, commodname, unitprofit DESC,
+ org_price, dst_price DESC,
+ org_stallname, dst_stallname
";
my $sth= $dbh->prepare($stmt);
$sth->execute(@query_params);
+my @flows;
+
+my $distquery= $dbh->prepare("
+ SELECT dist FROM dists WHERE aiid = ? AND biid = ?
+ ");
+my $distance= sub {
+ my ($from,$to)= @_;
+ my $d= $dists{$from}{$to};
+ return $d if defined $d;
+ $distquery->execute($from,$to);
+ $d = $distquery->fetchrow_array();
+ defined $d or die "$from $to ?";
+ $dists{$from}{$to}= $d;
+ return $d;
+};
+
+my @cols= ({ NoSort => 1 });
+
+my $addcols= sub {
+ my $base= shift @_;
+ foreach my $name (@_) {
+ my $col= { Name => $name, %$base };
+ $col->{Numeric}=1 if !$col->{Text};
+ push @cols, $col;
+ }
+};
+
+if ($qa->{ShowStalls}) {
+ $addcols->({ Text => 1 }, qw(
+ org_name org_stallname
+ dst_name dst_stallname
+ ));
+} else {
+ $addcols->({Text => 1 }, qw(
+ org_name dst_name
+ ));
+}
+$addcols->({ Text => 1 }, qw(commodname));
+$addcols->({ DoReverse => 1 },
+ qw( org_price org_qty_agg dst_price dst_qty_agg
+ ));
+$addcols->({ DoReverse => 1, SortColKey => 'MarginSortKey' },
+ qw( Margin
+ ));
+$addcols->({ DoReverse => 1 },
+ qw( unitprofit MaxQty MaxCapital MaxProfit dist
+ ));
+foreach my $v (qw(MaxMass MaxVolume)) {
+ $addcols->({
+ DoReverse => 1, Total => 0, SortColKey => "${v}SortKey" }, $v);
+}
</%perl>
+
% if ($qa->{'debug'}) {
<pre>
<% $stmt |h %>
</pre>
% }
-<& dumpqueryresults, sth =>$sth &>
+<& 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
+
+ $f= {
+ Ix => scalar(@flows),
+ Var => "f".@flows,
+ %$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 &>
+% }
+
+<%perl>
+
+my @total_massvol;
+
+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;
+ }
+
+}
+</%perl>
+
+% my $optimise= $specific && !$confusing && @islandids>1;
+% if (!$optimise) {
+
+<p>
+% if (@islandids<=1) {
+Route contains only one location.
+% }
+% if (!$specific) {
+Route contains archipelago(es), not just specific islands.
+% }
+% if ($confusing) {
+Route is complex - it visits the same island several times
+and isn't a simple loop.
+% }
+Therefore, optimal voyage trade plan not calculated.
+
+% } else { # ========== OPTMISATION ==========
+<%perl>
+
+my $cplex= "
+Maximize
+
+ totalprofit:
+ ".(join "
+ ", map {
+ sprintf "%+.20f %s", $_->{ExpectedUnitProfit}, $_->{Var}
+ } @flows)."
+
+Subject To
+";
+
+my %avail_csts;
+foreach my $flow (@flows) {
+ if ($flow->{Suppress}) {
+ $cplex .= "
+ $flow->{Var} = 0
+";
+ next;
+ }
+ foreach my $od (qw(org dst)) {
+ my $cstname= join '_', (
+ 'avail',
+ $flow->{'commodid'},
+ $od,
+ $flow->{"${od}_id"},
+ $flow->{"${od}_price"},
+ $flow->{"${od}_stallid"},
+ );
+
+ push @{ $avail_csts{$cstname}{Flows} }, $flow->{Var};
+ $avail_csts{$cstname}{Qty}= $flow->{"${od}_qty_agg"};
+ }
+}
+foreach my $cstname (sort keys %avail_csts) {
+ my $c= $avail_csts{$cstname};
+ $cplex .= "
+ ". sprintf("%-30s","$cstname:")." ".
+ join("+", @{ $c->{Flows} }).
+ " <= ".$c->{Qty}."\n";
+}
+
+foreach my $ci (0..($#islandids-1)) {
+ my @rel_flows;
+ foreach my $f (@flows) {
+ next if $f->{Suppress};
+ next if $f->{'org_id'} == $f->{'dst_id'};
+ next unless grep { $f->{'org_id'} == $_ }
+ @islandids[0..$ci];
+ next unless grep { $f->{'dst_id'} == $_ }
+ @islandids[$ci+1..@islandids-1];
+ push @rel_flows, $f;
+#print " RELEVANT $ci $f->{Ix} ";
+ }
+#print " RELEVANT $ci COUNT ".scalar(@rel_flows)." ";
+ next unless @rel_flows;
+ foreach my $mv (qw(mass volume)) {
+ my $max_vn= "max_$mv";
+ my $max= $mv eq 'mass' ? $max_mass : $max_volume;
+ $max= 1e9 unless defined $max;
+#print " DEFINED MAX $mv $max ";
+ $cplex .= "
+ ". sprintf("%-10s","${mv}_$ci:")." ".
+ join(" + ", map { ($_->{"unit$mv"}*1e-3).' f'.$_->{Ix} } @rel_flows).
+ " <= $max";
+ }
+ if (defined $max_capital) {
+ $cplex .= "
+ ". sprintf("%-10s","capital_$ci:")." ".
+ join(" + ", map { ($_->{"org_price"}).' f'.$_->{Ix} } @rel_flows).
+ " <= $max_capital";
+ }
+ $cplex.= "\n";
+}
+
+$cplex.= "
+Bounds
+ ".(join "
+ ", map { "$_->{Var} >= 0" } @flows)."
+
+";
+
+$cplex.= "
+Integer
+ ".(join "
+ ", map { "f$_" } (0..$#flows))."
+
+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 --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;
+ }
+ 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, $qty) = m/^
+ \s* \d+ \s+
+ (\w+) \s+ (?: [A-Z*]+ \s+ )?
+ ([0-9.]+) \s
+ /x or die "$_ ?";
+ if ($varname =~ m/^f(\d+)$/) {
+ my ($ix) = $1;
+ my $flow= $flows[$ix] or die;
+ $flow->{OptQty}= $qty;
+ $flow->{OptProfit}= $flow->{'unitprofit'} * $qty;
+ $flow->{OptCapital}= $flow->{OptQty} *
+ $flow->{'org_price'};
+ } elsif ($varname =~ m/^(mass|volume)_(\d+)$/) {
+ my ($mv,$ix) = ($1,$2);
+ $total_massvol[$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 $_->{Ix}" } @flows;
+# map { defined
+# die $prerr if grep { ! } @flows;
+# map { die
+# die $prerr if map {
+};
+
+$addcols->({ DoReverse => 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 }, qw(
+ OptCapital OptProfit
+ ));
+
+</%perl>
+
+% } # ========== OPTIMISATION ==========
+
+% my %ts_sortkeys;
+% {
+% my $cdspan= $qa->{ShowStalls} ? ' colspan=2' : '';
+% my $cdstall= $qa->{ShowStalls} ? '<th>Stall</th>' : '';
+<table id="trades" rules=groups>
+<colgroup span=1>
+<colgroup span=2>
+<% $qa->{ShowStalls} ? '<colgroup span=2>' : '' %>
+<colgroup span=1>
+<colgroup span=2>
+<colgroup span=2>
+<colgroup span=2>
+<colgroup span=3>
+<colgroup span=3>
+% if ($optimise) {
+<colgroup span=3>
+% }
+<tr class="spong">
+<th>
+<th<% $cdspan %>>Collect
+<th<% $cdspan %>>Deliver
+<th>
+<th colspan=2>Collect
+<th colspan=2>Deliver
+<th colspan=2>Profit
+<th colspan=3>Max
+<th colspan=1>
+<th colspan=2>Max
+% if ($optimise) {
+<th colspan=3>Planned
+% }
+
+<tr>
+<th>
+<th>Island <% $cdstall %>
+<th>Island <% $cdstall %>
+<th>Commodity
+<th>Price
+<th>Qty
+<th>Price
+<th>Qty
+<th>Margin
+<th>Unit
+<th>Qty
+<th>Capital
+<th>Profit
+<th>Dist
+<th>Mass
+<th>Vol
+% if ($optimise) {
+<th>Qty
+<th>Capital
+<th>Profit
+% }
+% }
+
+<tr id="trades_sort">
+% foreach my $col (@cols) {
+<th>
+% }
+
+% foreach my $flowix (0..$#flows) {
+% my $flow= $flows[$flowix];
+% my $rowid= "id_row_$flow->{UidShort}";
+<tr id="<% $rowid %>" class="datarow<% $flowix & 1 %>">
+<td><input type=hidden name=R<% $flow->{UidShort} %> value="">
+ <input type=checkbox name=T<% $flow->{UidShort} %> value=""
+ <% $flow->{Suppress} ? '' : 'checked' %> >
+% my $ci= 1;
+% while ($ci < @cols) {
+% my $col= $cols[$ci];
+% my $spec= {
+% Span => 1,
+% Align => ($col->{Text} ? '' : 'align=right')
+% };
+% my $v= $flow->{$col->{Name}};
+% if ($col->{Special}) { $col->{Special}($flow,$col,$v,$spec); }
+% $col->{Total} += $v
+% if defined $col->{Total} and not $flow->{Suppress};
+% $v='' if !$col->{Text} && !$v;
+% my $sortkey= $col->{SortColKey} ?
+% $flow->{$col->{SortColKey}} : $v;
+% $ts_sortkeys{$ci}{$rowid}= $sortkey;
+<td <% $spec->{Span} ? "colspan=$spec->{Span}" : ''
+ %> <% $spec->{Align}
+ %>><% exists $spec->{String} ? $spec->{String} : $v |h %>
+% $ci += $spec->{Span};
+% }
+% }
+<tr id="trades_total">
+<th>
+<th colspan=2>Total
+% foreach my $ci (3..$#cols) {
+% my $col= $cols[$ci];
+<td align=right>
+% if (defined $col->{Total}) {
+<% $col->{Total} |h %>
+% }
+% }
+</table>
+
+<&| tabsort, cols => \@cols, table => 'trades', rowclass => 'datarow',
+ throw => 'trades_sort', tbrow => 'trades_total' &>
+ ts_sortkeys= <% to_json_protecttags(\%ts_sortkeys) %>;
+</&tabsort>
+
+<input type=submit name=update value="Update">
+
+% if ($optimise) { # ========== TRADING PLAN ==========
+%
+% my $iquery= $dbh->prepare('SELECT islandname FROM islands
+% WHERE islandid = ?');
+% my %da_ages;
+% my $total_total= 0;
+% my $total_dist= 0;
+%
+<h1>Voyage trading plan</h1>
+<table rules=groups>
+% foreach my $i (0..$#islandids) {
+<tbody>
+<tr><td colspan=3>
+% $iquery->execute($islandids[$i]);
+% my ($islandname) = $iquery->fetchrow_array();
+% if (!$i) {
+<strong>Start at <% $islandname |h %></strong>
+% } else {
+% my $this_dist= $distance->($islandids[$i-1],$islandids[$i]);
+% $total_dist += $this_dist;
+<strong>Sail to <% $islandname |h %></strong>
+- <% $this_dist |h %> leagues </td>
+% }
+<%perl>
+ my $age_reported= 0;
+ my %flowlists;
+ foreach my $od (qw(org dst)) {
+ foreach my $f (@flows) {
+ next if $f->{Suppress};
+ next unless $f->{"${od}_id"} == $islandids[$i];
+ next unless $f->{OptQty};
+ my $arbitrage= $f->{'org_id'} == $f->{'dst_id'};
+ my $loop= $islandids[0] == $islandids[-1] &&
+ ($i==0 || $i==$#islandids);
+ next if $loop and ($arbitrage ? $i :
+ !!$i == !!($od eq 'org'));
+ my $price= $f->{"${od}_price"};
+ my $stallname= $f->{"${od}_stallname"};
+ my $todo= \$flowlists{$od}{
+ $f->{'commodname'},
+ (sprintf "%07d", ($od eq 'dst' ?
+ 9999999-$price : $price)),
+ $stallname
+ };
+ $$todo= {
+ Qty => 0,
+ orgArbitrage => 0,
+ dstArbitrage => 0,
+ } unless $$todo;
+ $$todo->{'commodname'}= $f->{'commodname'};
+ $$todo->{'stallname'}= $stallname;
+ $$todo->{Price}= $price;
+ $$todo->{Timestamp}= $f->{"${od}_timestamp"};
+ $$todo->{Qty} += $f->{OptQty};
+ $$todo->{Total}= $$todo->{Price} * $$todo->{Qty};
+ $$todo->{Stalls}= $f->{"${od}Stalls"};
+ $$todo->{"${od}Arbitrage"}= 1 if $arbitrage;
+ }
+ }
+
+ my ($total, $total_to_show);
+ my $dline= 0;
+ my $show_total= sub {
+ my ($totaldesc, $sign) = @_;
+ if (defined $total) {
+ die if defined $total_to_show;
+ $total_total += $sign * $total;
+ $total_to_show= [ $totaldesc, $total ];
+ $total= undef;
+ }
+ $dline= 0;
+ };
+ my $show_total_now= sub {
+ my ($xinfo) = @_;
+ return unless defined $total_to_show;
+ my ($totaldesc,$totalwas) = @$total_to_show;
+</%perl>
+<tr>
+<td colspan=1>
+<td colspan=2><% $xinfo %>
+<td colspan=2 align=right><% $totaldesc %>
+<td align=right><% $totalwas |h %> total
+<%perl>
+ $total_to_show= undef;
+ };
+</%perl>
+% my $show_flows= sub {
+% my ($od,$arbitrage,$collectdeliver) = @_;
+% my $todo= $flowlists{$od};
+% return unless $todo;
+% foreach my $tkey (sort keys %$todo) {
+% my $t= $todo->{$tkey};
+% next if $t->{"${od}Arbitrage"} != $arbitrage;
+% $show_total_now->('');
+% if (!$age_reported++) {
+% my $age= $now - $t->{Timestamp};
+% my $cellid= "da_${i}";
+% $da_ages{$cellid}= $age;
+<td colspan=3>\
+(Data age: <span id="<% $cellid %>"><% prettyprint_age($age) %></span>)
+% } elsif (!defined $total) {
+% $total= 0;
+<tbody>
+% }
+% $total += $t->{Total};
+% my $span= 0 + keys %{ $t->{Stalls} };
+% my $td= "td rowspan=$span";
+<tr class="datarow<% $dline %>">
+<<% $td %>><% $collectdeliver %>
+<<% $td %>><% $t->{'commodname'} |h %>
+%
+% my @stalls= sort keys %{ $t->{Stalls} };
+% my $pstall= sub {
+% my $name= $stalls[$_[0]];
+<td><% $name |h %>
+% };
+%
+% $pstall->(0);
+<<% $td %> align=right><% $t->{Price} |h %> poe ea.
+<<% $td %> align=right><% $t->{Qty} |h %> unit(s)
+<<% $td %> align=right><% $t->{Total} |h %> total
+%
+% foreach my $stallix (1..$#stalls) {
+<tr class="datarow<% $dline %>">
+% $pstall->($stallix);
+% }
+%
+% $dline ^= 1;
+% }
+% };
+<%perl>
+
+ $show_flows->('dst',0,'Deliver'); $show_total->('Proceeds',1);
+ $show_flows->('org',1,'Collect'); $show_total->('(Arbitrage) outlay',-1);
+ $show_flows->('dst',1,'Deliver'); $show_total->('(Arbitrage) proceeds',1);
+ $show_flows->('org',0,'Collect'); $show_total->('Outlay',-1);
+ my $totals= '';
+ if ($i < $#islandids) {
+ $totals .= "In hold $total_massvol[$i]{mass} kg,".
+ " $total_massvol[$i]{volume} l";
+ my $delim= '; spare ';
+ my $domv= sub {
+ my ($max, $got, $units) = @_;
+ return unless defined $max;
+ $totals .= $delim;
+ $totals .= sprintf "%g %s", ($max-$got), $units;
+ $delim= ', ';
+ };
+ $domv->($max_mass, $total_massvol[$i]{mass}, 'kg');
+ $domv->($max_volume, $total_massvol[$i]{volume}, 'l');
+ $totals .= ".\n";
+ }
+ $show_total_now->($totals);
+}
+</%perl>
+<tbody><tr>
+<td colspan=2>Total distance: <% $total_dist %> leagues.
+<td colspan=3 align=right>Overall net cash flow
+<td align=right><strong><%
+ $total_total < 0 ? -$total_total." loss" : $total_total." gain"
+ %></strong>
+</table>
+<& query_age:dataages, id2age => \%da_ages &>
+%
+% } # ========== TRADING PLAN ==========
<%init>
use CommodsWeb;
+use Commods;
</%init>