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<?php |
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namespace SecretSanta; |
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use SecretSanta\Exceptions\PlayersCollectionException; |
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/** |
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* Class PlayersCollection |
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* @package SecretSanta |
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*/ |
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class PlayersCollection implements \Countable |
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{ |
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/** @var Player[] */ |
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private $players = []; |
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/** @var array */ |
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private $excludePlayers = []; |
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/** |
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* @param Player $player |
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* @throws PlayersCollectionException |
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*/ |
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public function addPlayer(Player $player) |
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{ |
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if (!$this->isDuplicatePlayer($player)) { |
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$this->players[$player->id()] = $player; |
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} |
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} |
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/** |
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* @param Player $player |
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* @param Player $couple |
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* @throws PlayersCollectionException |
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*/ |
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public function addCouple(Player $player, Player $couple) |
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{ |
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if (!$this->areDifferentPlayers($player, $couple)) { |
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throw new PlayersCollectionException('The couple can not be the same player'); |
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} |
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if (!$this->isDuplicatePlayer($player) && !$this->isDuplicatePlayer($couple) ) { |
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$this->players[$player->id()] = $player; |
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$this->players[$couple->id()] = $couple; |
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$this->excludePlayers($player, $couple); |
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} |
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} |
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/** |
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* @return Player[] |
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*/ |
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public function players() |
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{ |
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return $this->players; |
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} |
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/** |
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* @return Player[] |
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*/ |
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public function shufflePlayers() |
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{ |
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return $this->shuffleAssoc($this->players); |
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} |
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/** |
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* @param string $id |
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* @return Player |
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* @throws PlayersCollectionException |
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*/ |
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public function player($id) |
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{ |
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if (!isset($this->players[$id])) { |
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throw new PlayersCollectionException("Player {$id} not found"); |
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} |
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return $this->players[$id]; |
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} |
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/** |
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* @param Player[] ...$players |
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*/ |
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private function excludePlayers(...$players) |
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{ |
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foreach ($players as $mainPlayer) { |
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foreach ($players as $player) { |
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if ($mainPlayer->id() == $player->id()){ |
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continue; |
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} |
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$this->excludePlayers[$mainPlayer->id()][] = $player->id(); |
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} |
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} |
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} |
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/** |
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* @param Player $player |
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* @param Player $player2 |
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* @return bool |
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*/ |
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public function areExclude(Player $player, Player $player2) |
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{ |
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if (array_key_exists($player->id(), $this->excludePlayers) |
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&& in_array($player2->id(), $this->excludePlayers[$player->id()]) |
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) { |
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return true; |
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} |
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return false; |
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} |
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/** |
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* @return int |
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*/ |
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public function count() |
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{ |
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return count($this->players); |
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} |
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/** |
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* @return int |
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*/ |
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public function countExcludePlayers() |
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{ |
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return count($this->excludePlayers); |
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} |
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/** |
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* @param Player $player |
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* @return bool |
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* @throws PlayersCollectionException |
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*/ |
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private function isDuplicatePlayer(Player $player) |
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{ |
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if (array_key_exists($player->id(), $this->players)) { |
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throw new PlayersCollectionException('Duplicate player: '.$player->email()); |
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} |
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return false; |
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} |
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/** |
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* @param Player $player |
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* @param Player $otherPlayer |
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* @return bool |
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*/ |
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private function areDifferentPlayers(Player $player, Player $otherPlayer) |
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{ |
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return $player->id() != $otherPlayer->id(); |
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} |
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/** |
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* @param array $list |
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* @return array |
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*/ |
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private function shuffleAssoc($list) |
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{ |
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if (!is_array($list)) return $list; |
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$keys = $this->forceShuffle(array_keys($list)); |
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$random = []; |
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foreach ($keys as $key) { |
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$random[$key] = $list[$key]; |
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} |
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return $random; |
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} |
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/** |
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* @param array $list |
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* @return array |
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*/ |
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private function forceShuffle($list) |
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{ |
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if (!is_array($list) || count($list) < 2) return $list; |
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$shuffleList = $list; |
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while ($shuffleList == $list) { |
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shuffle($shuffleList); |
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} |
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return $shuffleList; |
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} |
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} |
GuilleGF /
SecretSantaPHP
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Methods can only be called on objects. This check looks for methods being called on variables that have been inferred to never be objects.