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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\Cortex; |
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use Axiom\Rivescript\Rivescript; |
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/** |
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* Brain class |
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* |
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* The Brain teaches the interpreter how to respond from |
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* the user's input. |
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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 Brain |
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{ |
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/** |
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* A collection of topics. |
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* |
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* @var array<Topic> |
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*/ |
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protected array $topics; |
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/** |
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* @var \Axiom\Rivescript\Rivescript |
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*/ |
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protected Rivescript $master; |
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/** |
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* Create a new instance of Brain. |
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*/ |
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public function __construct() |
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{ |
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$this->createTopic('random'); |
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} |
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/** |
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* Set the interpreter for future reference. |
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* |
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* @param \Axiom\Rivescript\Rivescript $master |
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* |
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* @return void |
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*/ |
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public function setMaster(Rivescript $master): void |
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{ |
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$this->master = $master; |
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} |
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/** |
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* Teach the Brain with new information. |
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* |
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* @param resource $stream the stream to read from. |
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* |
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* @return void |
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*/ |
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public function teach($stream): void |
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{ |
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$commands = synapse()->commands; |
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if (is_resource($stream)) { |
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$lineNumber = 0; |
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rewind($stream); |
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while (!feof($stream)) { |
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$line = fgets($stream); |
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$node = new Node($line, $lineNumber++); |
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$error = $node->checkSyntax(); |
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if ($error) { |
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$this->master->say("Error: {$error}"); |
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} |
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if ($node->isInterrupted() === true || $node->isComment() === true || $node->isEmpty()) { |
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continue; |
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} |
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$commands->each(function ($command) use ($node) { |
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$class = "\\Axiom\\Rivescript\\Cortex\\Commands\\$command"; |
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$commandClass = new $class(); |
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$commandClass->parse($node); |
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}); |
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} |
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} else { |
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echo "CANNOT TEACH INVALID RESOURCE STREAM\n"; |
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} |
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} |
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/** |
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* Return a topic. |
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* |
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* @param string|null $name The name of the topic to return. |
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* |
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* @return mixed|null |
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*/ |
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public function topic(string $name = null) |
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{ |
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if (is_null($name)) { |
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$name = synapse()->memory->shortTerm()->get('topic') ?: 'random'; |
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} |
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if (!isset($this->topics[$name])) { |
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return null; |
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} |
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return $this->topics[$name]; |
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} |
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/** |
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* Create a new Topic. |
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* |
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* @param string $name The name of the topic to create. |
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* |
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* @return Topic |
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*/ |
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public function createTopic(string $name): Topic |
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{ |
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$this->topics[$name] = new Topic($name); |
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return $this->topics[$name]; |
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} |
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} |
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johnnymast /
rivescript-php
