/**
* Stats of a problem
*
* @param Request $r
* @return array
* @throws InvalidDatabaseOperationException
* @throws ForbiddenAccessException
*/
public static function apiStats(Request $r)
{
// Get user
self::authenticateRequest($r);
self::validateStats($r);
try {
// Array of GUIDs of pending runs
$pendingRunsGuids = RunsDAO::GetPendingRunsOfContest($r["contest"]->getContestId());
// Count of pending runs (int)
$totalRunsCount = RunsDAO::CountTotalRunsOfContest($r["contest"]->getContestId());
// Wait time
$waitTimeArray = RunsDAO::GetLargestWaitTimeOfContest($r["contest"]->getContestId());
// List of verdicts
$verdict_counts = array();
foreach (self::$verdicts as $verdict) {
$verdict_counts[$verdict] = RunsDAO::CountTotalRunsOfContestByVerdict($r["contest"]->getContestId(), $verdict);
}
// Get max points posible for contest
$key = new ContestProblems(array("contest_id" => $r["contest"]->getContestId()));
$contestProblems = ContestProblemsDAO::search($key);
$totalPoints = 0;
foreach ($contestProblems as $cP) {
$totalPoints += $cP->getPoints();
}
// Get scoreboard to calculate distribution
$distribution = array();
for ($i = 0; $i < 101; $i++) {
$distribution[$i] = 0;
}
$sizeOfBucket = $totalPoints / 100;
$scoreboardResponse = self::apiScoreboard($r);
foreach ($scoreboardResponse["ranking"] as $results) {
$distribution[(int) ($results["total"]["points"] / $sizeOfBucket)]++;
}
} catch (Exception $e) {
// Operation failed in the data layer
throw new InvalidDatabaseOperationException($e);
}
// Para darle gusto al Alanboy, regresando array
return array("total_runs" => $totalRunsCount, "pending_runs" => $pendingRunsGuids, "max_wait_time" => is_null($waitTimeArray) ? 0 : $waitTimeArray[1], "max_wait_time_guid" => is_null($waitTimeArray) ? 0 : $waitTimeArray[0]->getGuid(), "verdict_counts" => $verdict_counts, "distribution" => $distribution, "size_of_bucket" => $sizeOfBucket, "total_points" => $totalPoints, "status" => "ok");
}
