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<?php |
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namespace Botonomous\utility; |
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use Botonomous\CommandContainer; |
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/** |
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* Class MessageUtility. |
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*/ |
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class MessageUtility extends AbstractUtility |
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{ |
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/** |
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* Remove the mentioned bot username from the message. |
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* |
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* @param $message |
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* |
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* @throws \Exception |
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* |
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* @return string |
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*/ |
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public function removeMentionedBot($message) |
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{ |
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$userLink = $this->getUserLink(); |
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return preg_replace("/{$userLink}/", '', $message, 1); |
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} |
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/** |
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* Check if the bot user id is mentioned in the message. |
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* |
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* @param $message |
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* |
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* @throws \Exception |
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* |
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* @return bool |
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*/ |
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public function isBotMentioned($message) |
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{ |
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$userLink = $this->getUserLink(); |
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return (new StringUtility())->findInString($userLink, $message, false); |
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} |
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/** |
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* Return command name in the message. |
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* |
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* @param $message |
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* |
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* @return null|string |
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*/ |
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public function extractCommandName($message) |
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{ |
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// remove the bot mention if it exists |
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$message = $this->removeMentionedBot($message); |
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/** |
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* Command must start with / and at the beginning of the sentence. |
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*/ |
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$commandPrefix = $this->getConfig()->get('commandPrefix'); |
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$commandPrefix = preg_quote($commandPrefix, '/'); |
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$pattern = '/^('.$commandPrefix.'\w{1,})/'; |
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preg_match($pattern, ltrim($message), $groups); |
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// If command is found, remove command prefix from the beginning of the command |
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return isset($groups[1]) ? ltrim($groups[1], $commandPrefix) : null; |
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} |
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/** |
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* Return command details in the message. |
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* |
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* @param $message |
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* |
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* @return \Botonomous\Command|null |
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*/ |
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public function extractCommandDetails($message) |
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{ |
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// first get the command name |
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$command = $this->extractCommandName($message); |
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// then get the command details |
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return (new CommandContainer())->getAsObject($command); |
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} |
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/** |
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* @param $triggerWord |
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* @param $message |
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* |
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* @return string |
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*/ |
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public function removeTriggerWord($message, $triggerWord) |
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{ |
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$count = 1; |
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return ltrim(str_replace($triggerWord, '', $message, $count)); |
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} |
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/** |
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* @param $userId |
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* @param string $userName |
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* |
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* @throws \Exception |
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* |
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* @return string |
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*/ |
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public function linkToUser($userId, $userName = '') |
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{ |
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if (empty($userId)) { |
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throw new \Exception('User id is not provided'); |
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} |
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if (!empty($userName)) { |
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$userName = "|{$userName}"; |
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} |
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return "<@{$userId}{$userName}>"; |
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} |
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/** |
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* @return string |
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*/ |
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private function getUserLink() |
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{ |
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return $this->linkToUser($this->getConfig()->get('botUserId')); |
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} |
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/** |
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* @param array $keywords |
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* @param $message |
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* |
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* @return array |
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*/ |
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public function keywordPos(array $keywords, $message) |
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{ |
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$found = []; |
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if (empty($keywords)) { |
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return $found; |
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} |
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usort($keywords, function ($array1, $array2) { |
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return strlen($array2) <=> strlen($array1); |
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}); |
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foreach ($keywords as $keyword) { |
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$result = preg_match_all("/\b{$keyword}\b/", $message, $matches, PREG_OFFSET_CAPTURE); |
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if ($result && !empty($matches[0])) { |
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foreach ($matches[0] as $match) { |
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// check if the keyword does not overlap with one of the already found |
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if ($this->isPositionTaken($found, $match[1]) === false) { |
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$found[$keyword][] = $match[1]; |
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} |
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} |
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} |
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} |
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return $found; |
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} |
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/** |
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* @param array $tokensPositions |
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* @param $newPosition |
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* |
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* @return bool |
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*/ |
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private function isPositionTaken(array $tokensPositions, $newPosition) |
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{ |
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if (empty($tokensPositions)) { |
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return false; |
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} |
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foreach ($tokensPositions as $token => $positions) { |
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$tokenLength = strlen($token); |
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foreach ($positions as $position) { |
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if ($this->isPositionIn($newPosition, $position, $tokenLength) === true) { |
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return true; |
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} |
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} |
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} |
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return false; |
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} |
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/** |
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* @param $newPosition |
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* @param $position |
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* @param $tokenLength |
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* |
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* @return bool |
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*/ |
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private function isPositionIn($newPosition, $position, $tokenLength) |
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{ |
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return $newPosition >= $position && $newPosition < $position + $tokenLength; |
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} |
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} |
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iranianpep /
botonomous
