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1 | package Gruntmaster::Data; | |
2 | use 5.014; | |
3 | use warnings; | |
4 | ||
5 | use parent qw/Exporter/; | |
6 | our $VERSION = '5999.000_013'; | |
7 | our @EXPORT = qw/purge user_list user_entry problem_list problem_entry contest_list contest_entry contest_full contest_has_problem job_list job_entry job_full create_job standings update_status/; ## no critic (ProhibitAutomaticExportation) | |
8 | ||
9 | use JSON::MaybeXS qw/decode_json/; | |
10 | use HTTP::Tiny; | |
11 | use PerlX::Maybe qw/maybe/; | |
12 | ||
13 | use DBI; | |
14 | use DBIx::Simple; | |
15 | use List::Util qw/sum/; | |
16 | use SQL::Abstract; | |
17 | ||
18 | use constant PROBLEM_PUBLIC_COLUMNS => [qw/id author writer level name owner private timeout olimit value/]; | |
19 | use constant JOBS_PER_PAGE => 50; | |
20 | ||
21 | my %statements = ( | |
22 | user_list_sth => 'SELECT * FROM user_list LIMIT 200', | |
23 | user_entry_sth => 'SELECT * FROM user_data WHERE id = ?', | |
24 | ||
25 | problem_status_sth => 'SELECT problem,solved FROM problem_status WHERE owner = ?', | |
26 | contest_status_sth => 'SELECT contest,score,rank FROM contest_status WHERE owner = ?', | |
27 | ||
28 | contest_list_sth => 'SELECT * FROM contest_entry', | |
29 | contest_entry_sth => 'SELECT * FROM contest_entry WHERE id = ?', | |
30 | contest_full_sth => 'SELECT * FROM contests WHERE id = ?', | |
31 | contest_problems_sth => 'SELECT problem FROM contest_problems JOIN problems pb ON problem=pb.id WHERE contest = ? ORDER BY pb.value', | |
32 | contest_has_problem_sth => 'SELECT EXISTS(SELECT 1 FROM contest_problems WHERE contest = ? AND problem = ?)', | |
33 | opens_sth => 'SELECT problem,owner,time FROM opens WHERE contest = ?', | |
34 | ||
35 | problem_entry_sth => 'SELECT ' . (join ',', @{PROBLEM_PUBLIC_COLUMNS()}, 'statement', 'solution') . ' FROM problems WHERE id = ?', | |
36 | limits_sth => 'SELECT format,timeout FROM limits WHERE problem = ?', | |
37 | problem_values_sth => 'SELECT id,value FROM problems', | |
38 | ||
39 | job_entry_sth => 'SELECT * FROM job_entry WHERE id = ?', | |
40 | job_full_sth => 'SELECT * FROM jobs WHERE id = ?', | |
41 | ); | |
42 | ||
43 | our $db; | |
44 | ||
45 | sub init { | |
46 | $db = DBIx::Simple->new(@_); | |
47 | $db->keep_statements = 100; | |
48 | }; | |
49 | ||
50 | sub purge; | |
51 | ||
52 | sub query { | |
53 | my ($stat, @extra) = @_; | |
54 | $db->query($statements{$stat} // $stat, @extra) | |
55 | } | |
56 | ||
57 | my (%name_cache, %name_cache_time); | |
58 | use constant NAME_CACHE_MAX_AGE => 5; | |
59 | ||
60 | sub object_name { | |
61 | my ($table, $id) = @_; | |
62 | $name_cache_time{$table} //= 0; | |
63 | if (time - $name_cache_time{$table} > NAME_CACHE_MAX_AGE) { | |
64 | $name_cache_time{$table} = time; | |
65 | $name_cache{$table} = {}; | |
66 | $name_cache{$table} = $db->select($table, 'id,name')->map; | |
67 | } | |
68 | ||
69 | $name_cache{$table}{$id} | |
70 | } | |
71 | ||
72 | ||
73 | sub add_names ($) { ## no critic (ProhibitSubroutinePrototypes) | |
74 | my ($el) = @_; | |
75 | if (ref $el eq 'ARRAY') { | |
76 | &add_names ($_) for @$el ## no critic (ProhibitAmpersandSigils) | |
77 | } else { | |
78 | for my $object (qw/contest owner problem/) { | |
79 | my $table = $object eq 'owner' ? 'users' : "${object}s"; | |
80 | $el->{"${object}_name"} = object_name $table, $el->{$object} if defined $el->{$object} | |
81 | } | |
82 | } | |
83 | ||
84 | $el | |
85 | } | |
86 | ||
87 | sub user_list { +{us => scalar query('user_list_sth')->hashes} } | |
88 | ||
89 | sub user_entry { | |
90 | my ($id) = @_; | |
91 | my $ret = query('user_entry_sth', $id)->hash; | |
92 | $ret->{problems} = add_names query('problem_status_sth', $id)->hashes; | |
93 | $ret->{contests} = add_names query('contest_status_sth', $id)->hashes; | |
94 | ||
95 | $ret; | |
96 | } | |
97 | ||
98 | sub problem_list { | |
99 | my (%args) = @_; | |
100 | my @columns = @{PROBLEM_PUBLIC_COLUMNS()}; | |
101 | push @columns, 'solution' if $args{solution}; | |
102 | my %where; | |
103 | $where{private} = 0 unless $args{contest} || $args{private}; | |
104 | $where{'cp.contest'} = $args{contest} if $args{contest}; | |
105 | $where{owner} = $args{owner} if $args{owner}; | |
106 | ||
107 | my $table = $args{contest} ? 'problems JOIN contest_problems cp ON cp.problem = id' : 'problems'; | |
108 | my $ret = add_names $db->select(\$table, \@columns, \%where, 'name')->hashes; | |
109 | ||
110 | my %params; | |
111 | for (@$ret) { | |
112 | $params{$_->{level}} //= []; | |
113 | push @{$params{$_->{level}}}, $_ | |
114 | } | |
115 | \%params | |
116 | } | |
117 | ||
118 | sub problem_entry { | |
119 | my ($id, $contest) = @_; | |
120 | $contest &&= contest_entry ($contest); | |
121 | my $ret = add_names query(problem_entry_sth => $id)->hash; | |
122 | my $limits = query(limits_sth => $id)->hashes; | |
123 | $ret->{limits} = $limits if @$limits; | |
124 | ||
125 | if ($contest) { | |
126 | $ret->{contest_start} = $contest->{start}; | |
127 | $ret->{contest_stop} = $contest->{stop}; | |
128 | delete $ret->{solution} | |
129 | } | |
130 | ||
131 | $ret | |
132 | } | |
133 | ||
134 | sub contest_list { | |
135 | my $ret = add_names query('contest_list_sth')->hashes; | |
136 | ||
137 | my %ret; | |
138 | for (@$ret) { | |
139 | my $state = $_->{finished} ? 'finished' : $_->{started} ? 'running' : 'pending'; | |
140 | $ret{$state} //= []; | |
141 | push @{$ret{$state}}, $_; | |
142 | } | |
143 | ||
144 | \%ret | |
145 | } | |
146 | ||
147 | sub contest_entry { | |
148 | my ($id) = @_; | |
149 | add_names query(contest_entry_sth => $id)->hash; | |
150 | } | |
151 | ||
152 | sub contest_full { | |
153 | my ($id) = @_; | |
154 | scalar query(contest_full_sth => $id)->hash; | |
155 | } | |
156 | ||
157 | sub contest_has_problem { | |
158 | my ($contest, $problem) = @_; | |
159 | query('contest_has_problem_sth', $contest, $problem)->flat | |
160 | } | |
161 | ||
162 | sub job_list { | |
163 | my (%args) = @_; | |
164 | $args{page} //= 1; | |
165 | my %where = ( | |
166 | maybe contest => $args{contest}, | |
167 | maybe owner => $args{owner}, | |
168 | maybe problem => $args{problem}, | |
169 | maybe result => $args{result}, | |
170 | ); | |
171 | $where{private} = 0 unless $args{private}; | |
172 | ||
173 | my $rows = $db->select('job_entry', 'COUNT(*)', \%where)->list; | |
174 | my $pages = int (($rows + JOBS_PER_PAGE - 1) / JOBS_PER_PAGE); | |
175 | my ($stmt, @bind) = $db->abstract->select('job_entry', '*', \%where, {-desc => 'id'}); | |
176 | my $jobs = $db->query("$stmt LIMIT " . JOBS_PER_PAGE . ' OFFSET ' . ($args{page} - 1) * JOBS_PER_PAGE, @bind)->hashes; | |
177 | my %ret = ( | |
178 | log => add_names $jobs, | |
179 | current_page => $args{page}, | |
180 | last_page => $pages, | |
181 | ); | |
182 | $ret{previous_page} = $args{page} - 1 if $args{page} - 1; | |
183 | $ret{next_page} = $args{page} + 1 if $args{page} < $pages; | |
184 | ||
185 | \%ret; | |
186 | } | |
187 | ||
188 | sub job_entry { | |
189 | my ($id) = @_; | |
190 | my $ret = add_names query(job_entry_sth => $id)->hash; | |
191 | $ret->{results} &&= decode_json $ret->{results}; | |
192 | $ret | |
193 | } | |
194 | ||
195 | sub job_full { | |
196 | my ($id) = @_; | |
197 | scalar query(job_full_sth => $id)->hash | |
198 | } | |
199 | ||
200 | sub create_job { | |
201 | my (%args) = @_; | |
202 | $db->update('users', {lastjob => time}); | |
203 | purge '/log/'; | |
204 | scalar $db->insert('jobs', \%args, {returning => 'id'})->list | |
205 | } | |
206 | ||
207 | sub calc_score { | |
208 | my ($mxscore, $time, $tries, $totaltime) = @_; | |
209 | my $score = $mxscore; | |
210 | $time = 0 if $time < 0; | |
211 | $time = 300 if $time > $totaltime; | |
212 | $score = ($totaltime - $time) / $totaltime * $score; | |
213 | $score -= $tries / 10 * $mxscore; | |
214 | $score = $mxscore * 3 / 10 if $score < $mxscore * 3 / 10; | |
215 | int $score + 0.5 | |
216 | } | |
217 | ||
218 | sub standings { | |
219 | my ($ct) = @_; | |
220 | $ct = contest_entry $ct; | |
221 | ||
222 | my @problems = query(contest_problems_sth => $ct->{id})->flat; | |
223 | my $pblist = problem_list; | |
224 | my %values = query('problem_values_sth')->map; | |
225 | ||
226 | my (%scores, %tries, %opens); | |
227 | my $opens = query(opens_sth => $ct->{id}); | |
228 | while ($opens->into(my ($problem, $owner, $time))) { | |
229 | $opens{$problem, $owner} = $time; | |
230 | } | |
231 | ||
232 | my $jobs = $db->select('job_entry', '*', {contest => $ct->{id}}, 'id'); | |
233 | ||
234 | while (my $job = $jobs->hash) { | |
235 | my $open = $opens{$job->{problem}, $job->{owner}} // $ct->{start}; | |
236 | my $time = $job->{date} - $open; | |
237 | next if $time < 0; | |
238 | my $value = $values{$job->{problem}}; | |
239 | my $factor = $job->{result} ? 0 : 1; | |
240 | $factor = $1 / 100 if $job->{result_text} =~ /^(\d+ )/s; | |
241 | $scores{$job->{owner}}{$job->{problem}} = int ($factor * calc_score ($value, $time, $tries{$job->{owner}}{$job->{problem}}++, $ct->{stop} - $ct->{start})); | |
242 | } | |
243 | ||
244 | my @st = sort { $b->{score} <=> $a->{score} or $a->{user} cmp $b->{user} } map { ## no critic (ProhibitReverseSortBlock) | |
245 | my $user = $_; | |
246 | +{ | |
247 | user => $user, | |
248 | user_name => object_name(users => $user), | |
249 | score => sum (values %{$scores{$user}}), | |
250 | scores => [map { $scores{$user}{$_} // '-'} @problems], | |
251 | } | |
252 | } keys %scores; | |
253 | ||
254 | $st[0]->{rank} = 1 if @st; | |
255 | $st[$_]->{rank} = $st[$_ - 1]->{rank} + ($st[$_]->{score} < $st[$_ - 1]->{score}) for 1 .. $#st; | |
256 | +{ | |
257 | st => \@st, | |
258 | problems => [map { [ $_, object_name(problems => $_)] } @problems], | |
259 | } | |
260 | } | |
261 | ||
262 | sub update_status { | |
263 | my $jobs = $db->select('jobs', 'id,owner,problem,result', {-not_bool => 'private'}, 'id'); | |
264 | ||
265 | my %hash; | |
266 | while ($jobs->into(my ($id, $owner, $problem, $result))) { | |
267 | $hash{$problem, $owner} = [$id, $result ? 0 : 1]; | |
268 | } | |
269 | ||
270 | my @problem_statuses = map { [split ($;), @{$hash{$_}} ] } keys %hash; | |
271 | ||
272 | my @contest_statuses = map { | |
273 | my $ct = $_; | |
274 | map { [$ct, $_->{user}, $_->{score}, $_->{rank}] } @{standings($ct)->{st}} | |
275 | } $db->select('contests', 'id')->flat; | |
276 | ||
277 | $db->begin; | |
278 | $db->delete('problem_status'); | |
279 | $db->query('INSERT INTO problem_status (problem,owner,job,solved) VALUES (??)', @$_) for @problem_statuses; | |
280 | $db->delete('contest_status'); | |
281 | $db->query('INSERT INTO contest_status (contest,owner,score,rank) VALUES (??)', @$_) for @contest_statuses; | |
282 | $db->commit | |
283 | } | |
284 | ||
285 | my @PURGE_HOSTS = exists $ENV{PURGE_HOSTS} ? split ' ', $ENV{PURGE_HOSTS} : (); | |
286 | my $ht = HTTP::Tiny->new; | |
287 | ||
288 | sub purge { | |
289 | $ht->request(PURGE => "http://$_$_[0]") for @PURGE_HOSTS; | |
290 | } | |
291 | ||
292 | 1; | |
293 | ||
294 | __END__ | |
295 | ||
296 | =encoding utf-8 | |
297 | ||
298 | =head1 NAME | |
299 | ||
300 | Gruntmaster::Data - Gruntmaster 6000 Online Judge -- database interface and tools | |
301 | ||
302 | =head1 SYNOPSIS | |
303 | ||
304 | my $db = Gruntmaster::Data->connect('dbi:Pg:'); | |
305 | ||
306 | my $problem = $db->problem('my_problem'); | |
307 | $problem->update({timeout => 2.5}); # Set time limit to 2.5 seconds | |
308 | $problem->rerun; # And rerun all jobs for this problem | |
309 | ||
310 | # ... | |
311 | ||
312 | my $contest = $db->contests->create({ # Create a new contest | |
313 | id => 'my_contest', | |
314 | name => 'My Awesome Contest', | |
315 | start => time + 100, | |
316 | end => time + 1900, | |
317 | }); | |
318 | $db->contest_problems->create({ # Add a problem to the contest | |
319 | contest => 'my_contest', | |
320 | problem => 'my_problem', | |
321 | }); | |
322 | ||
323 | say 'The contest has not started yet' if $contest->is_pending; | |
324 | ||
325 | # ... | |
326 | ||
327 | my @jobs = $db->jobs->search({contest => 'my_contest', owner => 'MGV'})->all; | |
328 | $_->rerun for @jobs; # Rerun all jobs sent by MGV in my_contest | |
329 | ||
330 | =head1 DESCRIPTION | |
331 | ||
332 | Gruntmaster::Data is the interface to the Gruntmaster 6000 database. Read the L<DBIx::Class> documentation for usage information. | |
333 | ||
334 | In addition to the typical DBIx::Class::Schema methods, this module contains several convenience methods: | |
335 | ||
336 | =over | |
337 | ||
338 | =item contests | |
339 | ||
340 | Equivalent to C<< $schema->resultset('Contest') >> | |
341 | ||
342 | =item contest_problems | |
343 | ||
344 | Equivalent to C<< $schema->resultset('ContestProblem') >> | |
345 | ||
346 | =item jobs | |
347 | ||
348 | Equivalent to C<< $schema->resultset('Job') >> | |
349 | ||
350 | =item problems | |
351 | ||
352 | Equivalent to C<< $schema->resultset('Problem') >> | |
353 | ||
354 | =item users | |
355 | ||
356 | Equivalent to C<< $schema->resultset('User') >> | |
357 | ||
358 | =item contest($id) | |
359 | ||
360 | Equivalent to C<< $schema->resultset('Contest')->find($id) >> | |
361 | ||
362 | =item job($id) | |
363 | ||
364 | Equivalent to C<< $schema->resultset('Job')->find($id) >> | |
365 | ||
366 | =item problem($id) | |
367 | ||
368 | Equivalent to C<< $schema->resultset('Problem')->find($id) >> | |
369 | ||
370 | =item user($id) | |
371 | ||
372 | Equivalent to C<< $schema->resultset('User')->find($id) >> | |
373 | ||
374 | =item user_list | |
375 | ||
376 | Returns a list of users as an arrayref containing hashrefs. | |
377 | ||
378 | =item user_entry($id) | |
379 | ||
380 | Returns a hashref with information about the user $id. | |
381 | ||
382 | =item problem_list([%args]) | |
383 | ||
384 | Returns a list of problems grouped by level. A hashref with levels as keys. | |
385 | ||
386 | Takes the following arguments: | |
387 | ||
388 | =over | |
389 | ||
390 | =item owner | |
391 | ||
392 | Only show problems owned by this user | |
393 | ||
394 | =item contest | |
395 | ||
396 | Only show problems in this contest | |
397 | ||
398 | =back | |
399 | ||
400 | =item problem_entry($id, [$contest, $user]) | |
401 | ||
402 | Returns a hashref with information about the problem $id. If $contest and $user are present, problem open data is updated. | |
403 | ||
404 | =item contest_list([%args]) | |
405 | ||
406 | Returns a list of contests grouped by state. A hashref with the following keys: | |
407 | ||
408 | =over | |
409 | ||
410 | =item pending | |
411 | ||
412 | An arrayref of hashrefs representing pending contests | |
413 | ||
414 | =item running | |
415 | ||
416 | An arrayref of hashrefs representing running contests | |
417 | ||
418 | =item finished | |
419 | ||
420 | An arrayref of hashrefs representing finished contests | |
421 | ||
422 | =back | |
423 | ||
424 | Takes the following arguments: | |
425 | ||
426 | =over | |
427 | ||
428 | =item owner | |
429 | ||
430 | Only show contests owned by this user. | |
431 | ||
432 | =back | |
433 | ||
434 | =item contest_entry($id) | |
435 | ||
436 | Returns a hashref with information about the contest $id. | |
437 | ||
438 | =item job_list([%args]) | |
439 | ||
440 | Returns a list of jobs as an arrayref containing hashrefs. Takes the following arguments: | |
441 | ||
442 | =over | |
443 | ||
444 | =item owner | |
445 | ||
446 | Only show jobs submitted by this user. | |
447 | ||
448 | =item contest | |
449 | ||
450 | Only show jobs submitted in this contest. | |
451 | ||
452 | =item problem | |
453 | ||
454 | Only show jobs submitted for this problem. | |
455 | ||
456 | =item page | |
457 | ||
458 | Show this page of results. Defaults to 1. Pages have 10 entries, and the first page has the most recent jobs. | |
459 | ||
460 | =back | |
461 | ||
462 | =item job_entry($id) | |
463 | ||
464 | Returns a hashref with information about the job $id. | |
465 | ||
466 | =back | |
467 | ||
468 | =head1 AUTHOR | |
469 | ||
470 | Marius Gavrilescu E<lt>marius@ieval.roE<gt> | |
471 | ||
472 | =head1 COPYRIGHT AND LICENSE | |
473 | ||
474 | Copyright (C) 2014 by Marius Gavrilescu | |
475 | ||
476 | This library is free software; you can redistribute it and/or modify | |
477 | it under the same terms as Perl itself, either Perl version 5.18.1 or, | |
478 | at your option, any later version of Perl 5 you may have available. | |
479 | ||
480 | ||
481 | =cut |