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<?php |
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/* |
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* This file is part of Rivescript-php |
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* |
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* (c) Shea Lewis <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace Axiom\Rivescript; |
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use Axiom\Rivescript\Cortex\ContentLoader\ContentLoader; |
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use Axiom\Rivescript\Cortex\Input; |
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use Axiom\Rivescript\Cortex\Output; |
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use Axiom\Rivescript\Traits\Tags; |
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/** |
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* Rivescript class |
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* |
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* The entry point for using the interpreter. |
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* |
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* PHP version 7.4 and higher. |
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* |
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* @category Core |
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* @package Cortext |
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* @author Shea Lewis <[email protected]> |
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* @license https://opensource.org/licenses/MIT MIT |
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* @link https://github.com/axiom-labs/rivescript-php |
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* @since 0.3.0 |
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*/ |
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class Rivescript extends ContentLoader |
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{ |
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use Tags; |
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public const VERBOSITY_NORMAL = 0; |
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public const VERBOSITY_VERBOSE = 1; |
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public const VERBOSITY_VERY_VERBOSE = 2; |
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public const VERBOSITY_DEBUG = 3; |
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public $onSay = null; |
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/** |
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* A recursion limit before an attempt to |
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* fetch a reply will be abandoned. |
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* |
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* @var int |
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*/ |
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public int $depth = 50; |
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/** |
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* Error messages. |
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* |
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* @var array|string[] |
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*/ |
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public array $errors = [ |
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"replyNotMatched" => "ERR: No Reply Matched", |
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"replyNotFound" => "ERR: No Reply Found", |
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"objectNotFound" => "[ERR: Object Not Found]", |
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"deepRecursion" => "ERR: Deep Recursion Detected" |
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]; |
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/** |
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* Flag to indicating if utf8 |
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* modes is enabled. |
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* |
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* @var bool |
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*/ |
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protected bool $utf8 = false; |
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/** |
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* Flag to indicate debug mode |
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* is enabled or not. |
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* |
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* @var bool |
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*/ |
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public bool $debug = false; |
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/** |
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* Create a new Rivescript instance. |
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* |
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* @throws \Axiom\Rivescript\Exceptions\ContentLoadingException |
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*/ |
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public function __construct() |
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{ |
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parent::__construct(); |
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include __DIR__ . '/bootstrap.php'; |
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synapse()->brain->setMaster($this); |
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synapse()->rivescript = $this; |
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$this->registerTags(); |
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} |
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/** |
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* Initialize the tags |
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* |
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* @return void |
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*/ |
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private function registerTags(): void |
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{ |
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synapse()->tags->each( |
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function ($tag) { |
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$class = "\\Axiom\\Rivescript\\Cortex\\Tags\\$tag"; |
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$tagInstance = new $class(); |
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$tagInfo = $tagInstance->getTagName(); |
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if (is_array($tagInfo)) { |
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foreach ($tagInfo as $tagName) { |
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synapse()->memory->tags()->put($tagName, $tagInstance); |
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} |
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} else { |
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synapse()->memory->tags()->put($tagInfo, $tagInstance); |
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} |
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} |
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); |
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} |
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/** |
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* Load Rivescript interpretable content. |
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* Into the Interpreter. |
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* |
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* Please note: This supports |
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* |
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* - Directory path to Rivescript interpretable files. |
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* - Array of absolute paths to Rivescript interpretable files |
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* - Absolute string containing path to Rivescript interpretable file. |
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* - A stream of text with Rivescript interpretable script. |
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* |
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* Please note 2: |
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* |
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* If you profile a directory with rivescript documents make sure they are |
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* all interpretable rivescript will throw syntax errors while trying to |
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* parse those files. |
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* |
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* @param array<string>|string $info The files to read |
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* |
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* @return void |
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*/ |
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public function load($info): void |
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{ |
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parent::load($info); |
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$this->processInformation(); |
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} |
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/** |
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* Stream new information into the brain. |
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* |
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* @param string $string The string of information to feed the brain. |
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* |
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* @return void |
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*/ |
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public function stream(string $string): void |
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{ |
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fseek($this->getStream(), 0, SEEK_SET); |
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rewind($this->getStream()); |
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$this->writeToMemory($string); |
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$this->processInformation(); |
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} |
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/** |
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* Process new information in the |
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* stream. |
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* |
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* @return void |
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*/ |
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private function processInformation(): void |
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{ |
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synapse()->memory->local()->put('concat', 'none'); |
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synapse()->brain->teach($this->getStream()); |
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} |
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/** |
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* Set user variables. |
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* |
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* @param string $user The user for this variable. |
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* @param string $name The name of the variable. |
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* @param string $value The value of the variable. |
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* |
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* @return void |
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*/ |
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public function setUservar(string $user, string $name, string $value): void |
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{ |
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synapse()->memory->user($user)->put($name, $value); |
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} |
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/** |
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* Get user variable. |
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* |
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* @param string $user The user for this variable. |
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* @param string $name The name of the variable. |
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* |
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* @return mixed |
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*/ |
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public function getUservar(string $user, string $name) |
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{ |
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return synapse()->memory->user($user)->get($name); |
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} |
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/** |
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* @param string $string |
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* @param bool $utf8 |
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* |
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* @return string |
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* @deprecated |
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*/ |
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private function stripNasties(string $string, bool $utf8): string |
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{ |
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return preg_replace("/[^A-Za-z0-9 ]/m", "", $string); |
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} |
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/** |
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* Log a message to say. |
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* |
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* @param string $message The message to print out. |
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* @param array $args (format) arguments for the message. |
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* @param int $verbosity The verbosity level of the message. |
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* |
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* @return void |
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*/ |
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public function say(string $message, array $args = [], int $verbosity = Rivescript::VERBOSITY_NORMAL): void |
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{ |
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$message = $this->formatString($message, $args); |
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if ($this->onSay) { |
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call_user_func($this->onSay, $message, $verbosity); |
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} |
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} |
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/** |
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* Write a warning. |
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* |
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* @param string $message The message to print out. |
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* @param array $args (format) arguments for the message. |
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* @param int $verbosity The verbosity level of the message. |
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* |
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* @return void |
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*/ |
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public function warn(string $message, array $args = [], int $verbosity = Rivescript::VERBOSITY_NORMAL): void |
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{ |
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$message = $this->formatString($message, $args); |
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if ($this->onSay) { |
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call_user_func($this->onSay, $message, $verbosity); |
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} |
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} |
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/** |
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* Create a string PDO style/ |
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* |
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* @param string $msg The message to write. |
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* @param array $args The arguments for the message. |
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* |
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* @return string |
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*/ |
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private function formatString(string $msg, array $args = []): string |
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{ |
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$words = explode(' ', $msg); |
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$parameters = array_filter($words, static function (string $part) { |
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return ($part[0] === ':'); |
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}); |
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if (is_array($args) === true && count($args) > 0) { |
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foreach ($parameters as $param) { |
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$key = substr($param, 1); |
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if (isset($args[$key]) === true) { |
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$msg = str_replace($param, $args[$key], $msg); |
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} |
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} |
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} |
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return $msg; |
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} |
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/** |
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* Enable debug mode. |
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* |
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* @param bool $enabled Enable true/false. |
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* |
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* @return void |
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*/ |
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public function enableDebugMode(bool $enabled = true): void |
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{ |
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synapse()->memory->global()->put('debug', true); |
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} |
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/** |
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* Make the client respond to a message. |
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* |
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* @param string $msg The message the client has to process and respond to. |
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* @param string $user The user id. |
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* @param string|null $scope Not used at this point. |
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* |
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* @return string |
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*/ |
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public function reply(string $msg, string $user = 'local-user', string $scope = null): string |
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{ |
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// FIXME: Must be $user, $message, Sscope |
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// $msg = $this->stripNasties($msg, ""); |
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synapse()->rivescript->say("Asked to reply to :user :msg", ['user' => $user, 'message' => $msg]); |
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$input = new Input($msg, $user); |
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$output = new Output(); |
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synapse()->input = $input; |
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$output = $output->process(); |
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if (empty($output)) { |
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$output = $this->errors['replyNotMatched']; |
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} |
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synapse()->memory->inputs()->push($msg); |
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synapse()->memory->replies()->push($output); |
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return $output; |
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} |
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} |
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