X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~yarrgweb/git?p=ypp-sc-tools.main.git;a=blobdiff_plain;f=yarrg%2Fweb%2Fquery_routesearch;h=65f57f881531797d36bd7df6f1b39c3db331fce2;hp=53128f6483d255723b1ec4df69b2617dbde54387;hb=a1fb96b672d234f5961a397215c19c2c631c5cc3;hpb=5df1a21a8f7ad18ade3a97b9ccf26bdcf335edd2

diff --git a/yarrg/web/query_routesearch b/yarrg/web/query_routesearch
index 53128f6..65f57f8 100644
--- a/yarrg/web/query_routesearch
+++ b/yarrg/web/query_routesearch
@@ -36,20 +36,34 @@
 <%args>
 $quri
 $dbh
+$queryqf
+$islandstring => '';
 $capacitystring => '';
 $lossperleague => '';
 $capitalstring => '';
+$distance => '';
+$prselector
+$someresults
 $emsgokorprint
+$allargs
 </%args>
 
 <%perl>
+use BSD::Resource;
+
 my $emsg;
 my @warningfs;
 my @islandids;
 
+my $maxmaxdist=35;
+my $maxcpu=90;
+my $concur_lim=5;
+
 my $qa= \%ARGS;
-my $routeparams= { EmsgRef => \$emsg };
+my $routeparams= { EmsgRef => \$emsg, SayRequiredCapacity => 1 };
 my $maxdist;
+my $maxcountea=15;
+
 </%perl>
 
 <h1>Find most profitable routes and trades</h1>
@@ -58,6 +72,8 @@ my $maxdist;
 This feature is not available from the "drop down menus" interface.
 % } else {
 
+% $prselector->('RouteSearchType');
+
 <form action="<% $quri->() |h %>" method="get">
 
 <& enter_route, qa=>$qa, dbh=>$dbh, emsg_r=>\$emsg, warningfs_r=>\@warningfs,
@@ -67,12 +83,268 @@ This feature is not available from the "drop down menus" interface.
 
 <&| enter_advrouteopts, qa=>$qa, dbh=>$dbh, routeparams=>$routeparams &>
 <td>
- Something:
+&nbsp;
+&nbsp;
+<td>
+ Maximum distance:
  <&| qtextstring, qa => $qa, dbh => $dbh, prefix => 'ml',
-    thingstring => 'capitalstring', emsgstore => \$emsg,
+    thingstring => 'distance', emsgstore => \$emsg,
     onresults => sub { ($maxdist)= @_; } &>
+   size=10
  </&>
 </&>
 
+<input type=submit name=submit value="Search">
+% my $ours= sub { $_[0] =~ m/^lossperleague|^islandstring|^capitalstring|^capacitystring|^distance/; };
+<& "lookup:formhidden", ours => $ours &>
 
 % }
+
+</form>
+<%perl>
+
+if (!$emsg && $maxdist > $maxmaxdist) {
+	$emsg= "Searching for routes of more than $maxmaxdist leagues is not".
+		" supported, sorry.";
+}
+
+$emsgokorprint->($emsg) or return;
+@islandids or return;
+$allargs->{'submit'} or return;
+defined $routeparams->{MaxMass} or defined $routeparams->{MaxVolume} or return;
+
+#---------- prepare island names ----------
+
+my $islandname_stmt= $dbh->prepare(<<END);
+	SELECT islandname, archipelago
+	  FROM islands
+	 WHERE islandid = ?
+END
+
+my $isleinfo = sub {
+	my ($id) = @_;
+	$islandname_stmt->execute($id);
+	my $row= $islandname_stmt->fetchrow_hashref();
+	local $_= $row->{'islandname'};
+	s/ Island$//;
+	return $_, $row->{'islandname'}, $row->{'archipelago'};
+};
+
+#---------- compute the results ----------
+
+my @rsargs= ($concur_lim, '-DN');
+my $concur_fail;
+
+foreach my $k (qw(MaxMass MaxVolume MaxCapital)) {
+	my $v= $routeparams->{$k};
+	push @rsargs, (defined $v ? $v : -1);
+}
+push @rsargs, defined $routeparams->{LossPerLeaguePct}
+	? $routeparams->{LossPerLeaguePct}*0.01 : 1e-9;
+push @rsargs, '0';
+push @rsargs, 'search',$maxdist, $maxcountea,$maxcountea;
+push @rsargs, $ARGS{RouteSearchType} ? 'circ' : 'any';
+push @rsargs, @islandids;
+
+m/[^-.0-9a-zA-Z]/ and die "$_ $& ?" foreach @rsargs;
+
+if ($qa->{'debug'}) {
+</%perl>
+[[ <% "@rsargs" |h %> ]]<br><pre>
+<%perl>
+}
+
+unshift @rsargs,
+	'nice', sourcebasedir().'/yarrg/routesearch',
+	'-d', dbw_filename($qa->{'Ocean'}),
+	'-C', webdatadir().'/_concur.', '.lock';
+
+# touch _concur.0{0,1,2,3,4}.lock
+# really chgrp www-data _concur.0?.lock
+
+my %results; # $results{$ap}{"5 6 9 10"} = { stuff }
+
+my $fh= new IO::File;
+my $child= $fh->open("-|"); defined $child or die $!;
+if (!$child) {
+	my $cpu= BSD::Resource::RLIMIT_CPU;
+	my ($soft,$hard)= getrlimit($cpu);
+	setrlimit($cpu,$maxcpu,$hard) or die $! if $hard<=$maxcpu;
+	exec @rsargs;
+	die $!;
+}
+
+while (<$fh>) {
+	chomp;
+	if ($qa->{'debug'}) {
+</%perl>
+<% $_ |h %>
+<%perl>
+	}
+	next unless m/^\s*\@/;
+	if (m/^\@\@\@ concurrency limit exceeded/) {
+		$concur_fail= 1;
+		last;
+	}
+	die unless m/^ \@ *\d+ ([ap])\# *\d+ \|.*\| *(\d+)lg *\| *\d+ +(\d+) +(\d+) *\| ([0-9 ]+)$/;
+	my ($ap,$isles) = (uc $1,$5);
+	next if $results{$ap} && %{$results{$ap}} >= $maxcountea;
+	my $item= { A => $3, P => $4, Leagues => $2 };
+	my (@i, @fi, @a);
+	foreach (split / /, $isles) {
+		my ($name,$fullname,$arch)= $isleinfo->($_);
+		push @i, $name;
+		push @fi, $fullname;
+		push @a, $arch unless @a && $a[-1] eq $arch;
+	}
+	$item->{Isles}= [ @i ];
+	$item->{Archs}= [ @a ];
+	$item->{Start}= $i[0];
+	$item->{Finish}= $i[-1];
+	$item->{Vias}= [ ];
+	my $i;
+	for ($i=1; $i < @i-1; $i++) {
+		push @{ $item->{Vias} }, $i[$i];
+	}
+	my %linkqf= %$queryqf;
+	delete $linkqf{'query'};
+	$linkqf{'routestring'}= join ', ', @fi;
+	$item->{Url}= $quri->(%linkqf);
+	$item->{ArchesString}= join ', ', @a;
+	$item->{ViasString}= join ' ', map { $_.',' } @{ $item->{Vias} };
+	$item->{RouteSortString}= join ', ', @i;
+	$results{$ap}{$isles}= $item;
+}
+
+if ($qa->{'debug'}) {
+	print "</pre>\n";
+}
+
+$!=0;
+if (!close $fh) {
+	die $! if $!;
+	die $? if $? != 24; # SIGXCPU but not in POSIX.pm :-/
+</%perl>
+<h2>Search took too long and was terminated</h2>
+
+Sorry, but your query resulted in a search that took too long.
+Searches are limited to <% $maxcpu |h %> seconds of CPU time to
+avoid them consuming excessive resources on the server system, and to
+make sure that shorter searches can still happen.
+
+<p>
+Please try a search with a smaller minimum distance, or place more
+restrictions on the route.
+
+<%perl>
+	return;
+}
+
+if ($concur_fail) {
+</%perl>
+<h2>Server too busy</h2>
+
+Sorry, but there are already <% $concur_lim |h %> route searches
+running.  We limit the number which can run at once to avoid
+overloading the server system and to make sure that the rest of the
+YARRG website still runs quickly.
+<p>
+
+If you submitted several searches and gave up on them (eg by hitting
+`back' or `stop' in your browser), be aware that that doesn't
+generally stop the search process at the server end.  So it's best to
+avoid asking for large searches that you're not sure about.
+
+<p>
+Otherwise, please try later.  Searches are limited to <% $maxcpu |h %>
+seconds of CPU time so more processing resources should be available soon.
+
+<%perl>
+	return;
+}
+
+$someresults->();
+
+</%perl>
+% foreach my $ap (qw(A P)) {
+%	if ($ap eq 'A') {
+<h2>Best routes for total profit</h2>
+%	} else {
+<h2>Best routes for profit per league</h2>
+%	}
+<table rules=groups id="ap<% $ap %>_table">
+<colgroup span=2>
+<colgroup span=1>
+<colgroup span=1>
+<colgroup span=3>
+<tr>
+<th colspan=2>Profit
+<th>Dist.
+<th>Archipelagoes
+<th>
+<th>Route
+<th>
+<tr>
+<th>Abs.
+<th>Per.lg.
+<th>
+<th>(link to plan)
+<th>Start
+<th>Via
+<th>Finish
+<tr>
+<tr id="ap<% $ap %>_sortrow"><th><th><th><th><th><th><th>
+%	my $datarow=0;
+%	my %sortkeys;
+%	foreach my $isles (sort {
+%			$results{$ap}{$b}{$ap} <=>
+%			$results{$ap}{$a}{$ap}
+%		} keys %{$results{$ap}}) {
+%		my $item= $results{$ap}{$isles};
+%		my $ci=0;
+%		my $rowid= "r${ap}$isles"; $rowid =~ y/ /_/;
+%		foreach my $k (qw(A P Leagues ArchesString
+%			          Start RouteSortString Finish)) {
+%			$sortkeys{$ci}{$rowid}= $item->{$k};
+%			$ci++;
+%		}
+<tr class="datarow<% $datarow %>" id="<% $rowid %>">
+<td align=right><% $item->{A} |h %>
+<td align=right><% $item->{P} |h %>
+<td align=right><% $item->{Leagues} |h %>
+<td align=left><a href="<% $item->{Url} |h %>"><%
+		  $item->{ArchesString} |h %></a>
+<td align=left><% $item->{Start} |h %>,
+<td align=left><% $item->{ViasString} |h %>
+<td align=left><% $item->{Finish} |h %>
+</td>
+%		$datarow ^= 1;
+%	} # $isles
+</table>
+<&| tabsort,	table => "ap${ap}_table", sortkeys => "ap${ap}_sortkeys",
+		throw => "ap${ap}_sortrow", rowclass => "datarow", cols => [
+		{ DoReverse => 1, Numeric => 1 },
+		{ DoReverse => 1, Numeric => 1 },
+		{ DoReverse => 1, Numeric => 1 },
+		{ },
+		{ },
+		{ },
+		{ },
+	] &>
+  ap<% $ap %>_sortkeys= <% to_json_protecttags(\%sortkeys) %>;
+</&tabsort>
+% } # $ap
+
+<p>
+
+<h2>Notes</h2>
+
+Per league values count each island visited as one
+(additional) league; the `Dist.' column is however the actual distance
+to be sailed.  All profit figures are somewhat approximate; get a
+complete trading plan for a route for accurate information.
+
+<%perl>
+
+
+</%perl>