/**
* Recalculates match history for all teams and matches
*
* Recalculation is done as follows:
* 1. A match is chosen as a starting point - it's stored old team ELOs are
* considered correct
* 2. Team ELOs are reset to their values at the starting point
* 3. Each match that occurred since the first specified match has its ELO
* recalculated based on the current team values, and the new match data
* and team ELOs are stored in the database
*
* @param Match $match The first match
*/
private function recalculate(Match $match)
{
try {
// Commented out to prevent ridiculously large recalculations
//set_time_limit(0);
$query = Match::getQueryBuilder()->where('status')->notEquals('deleted')->where('type')->equals(Match::OFFICIAL)->where('time')->isAfter($match->getTimestamp(), $inclusive = true)->sortBy('time');
/** @var Match[] $matches */
$matches = $query->getModels($fast = true);
// Send the total count to client-side javascript
$this->log(count($matches) . "\n");
// Start a transaction so tables are locked and we don't stay with
// messed up data if something goes wrong
Database::getInstance()->startTransaction();
$teamsReset = [];
// Reset match teams, in case the selected match is deleted and does
// not show up in the list of matches to recalculate
$match->getTeamA()->setElo($match->getTeamAEloOld());
$match->getTeamB()->setElo($match->getTeamBEloOld());
$teamsReset[$match->getTeamA()->getId()] = true;
$teamsReset[$match->getTeamB()->getId()] = true;
foreach ($matches as $i => $match) {
// Reset teams' ELOs if they haven't been reset already
if (!isset($teamsReset[$match->getTeamA()->getId()])) {
$teamsReset[$match->getTeamA()->getId()] = true;
$match->getTeamA()->setElo($match->getTeamAEloOld());
}
if (!isset($teamsReset[$match->getTeamB()->getId()])) {
$teamsReset[$match->getTeamB()->getId()] = true;
$match->getTeamB()->setElo($match->getTeamBEloOld());
}
$match->recalculateElo();
// Send an update to the client-side javascript, so that a
// progress bar can be updated
$this->log("m");
}
} catch (Exception $e) {
Database::getInstance()->rollback();
Database::getInstance()->finishTransaction();
throw $e;
}
Database::getInstance()->finishTransaction();
$this->log("\n\nCalculation successful\n");
}
/**
* Find if a specific match is the team's last one
*
* @param int|Match $match The match
* @return bool
*/
public function isLastMatch($match)
{
// Find if this team participated in any matches after the current match
return !Match::getQueryBuilder()->with($this)->where('status')->notEquals('deleted')->where('time')->isAfter(Match::get($match)->getTimestamp())->any();
}
/**
* Get the match activity in matches per day for a player
*
* @return float
*/
public function getMatchActivity()
{
$activity = 0.0;
$matches = Match::getQueryBuilder()->active()->with($this)->where('time')->isAfter(TimeDate::from('45 days ago'))->getModels($fast = true);
foreach ($matches as $match) {
$activity += $match->getActivity();
}
return $activity;
}
/**
* Find if a specific match is the team's last one
*
* @param int $matchID The ID of the match
* @return bool
*/
public function isLastMatch($matchID)
{
// Find if this team participated in any matches after the current match
return !Match::getQueryBuilder()->with($this)->active()->sortBy('id')->reverse()->startAt($matchID)->any();
}
/**
* Get the number of matches played on this map
*
* @return int
*/
public function countMatches()
{
return Match::getQueryBuilder()->active()->where('map')->is($this)->count();
}
