Proyectos de Subversion Moodle

<?php

// This file is part of Moodle - http://moodle.org/

//

// Moodle is free software: you can redistribute it and/or modify

// it under the terms of the GNU General Public License as published by

// the Free Software Foundation, either version 3 of the License, or

// (at your option) any later version.

//

// Moodle is distributed in the hope that it will be useful,

// but WITHOUT ANY WARRANTY; without even the implied warranty of

// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

// GNU General Public License for more details.

//

// You should have received a copy of the GNU General Public License

// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.

/**

 * Base completion object class

 *

 * @package    block_openai_chat

 * @copyright  2023 Bryce Yoder <me@bryceyoder.com>

 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later

*/

namespace block_openai_chat;

defined('MOODLE_INTERNAL') || die;

class completion {

    protected $apikey;

    protected $message;

    protected $history;

    protected $assistantname;

    protected $username;

    protected $prompt;

    protected $sourceoftruth;

    protected $model;

    protected $temperature;

    protected $maxlength;

    protected $topp;

    protected $frequency;

    protected $presence;

    protected $assistant;

    protected $instructions;

    /**

     * Initialize all the class properties that we'll need regardless of model

     * @param string model: The name of the model we're using

     * @param string message: The most recent message sent by the user

     * @param array history: An array of objects containing the history of the conversation

     * @param string block_settings: An object containing the instance-level settings if applicable

     */

    public function __construct($model, $message, $history, $block_settings) {

        // Set default values

        $this->model = $model;

        $this->apikey = get_config('block_openai_chat', 'apikey');

        // We fetch defaults for both chat and assistant APIs, even though only one can be active at a time

        // In the past, multiple different completion classes shared API types, so this might happen again

        // Any settings that don't apply to the current API type are just ignored

        $this->prompt = $this->get_setting('prompt', get_string('defaultprompt', 'block_openai_chat'));

        $this->assistantname = $this->get_setting('assistantname', get_string('defaultassistantname', 'block_openai_chat'));

        $this->username = $this->get_setting('username', get_string('defaultusername', 'block_openai_chat'));

        $this->temperature = $this->get_setting('temperature', 0.5);

        $this->maxlength = $this->get_setting('maxlength', 500);

        $this->topp = $this->get_setting('topp', 1);

        $this->frequency = $this->get_setting('frequency', 1);

        $this->presence = $this->get_setting('presence', 1);

        $this->assistant = $this->get_setting('assistant');

        $this->instructions = $this->get_setting('instructions');

        // Then override with block settings if applicable

        if (get_config('block_openai_chat', 'allowinstancesettings') === "1") {

            foreach ($block_settings as $name => $value) {

                if ($value) {

                    $this->$name = $value;

                }

            }

        }

        $this->message = $message;

        $this->history = $history;

        $this->build_source_of_truth($block_settings['sourceoftruth']);

    }

    /**

     * Attempt to get the saved value for a setting; if this isn't set, return a passed default instead

     * @param string settingname: The name of the setting to fetch

     * @param mixed default_value: The default value to return if the setting isn't already set

     * @return mixed: The saved or default value

     */

    protected function get_setting($settingname, $default_value = null) {

        $setting = get_config('block_openai_chat', $settingname);

        if (!$setting && (float) $setting != 0) {

            $setting = $default_value;

        }

        return $setting;

    }

    /**

     * Make the source of truth ready to add to the prompt by appending some extra information

     * @param string localsourceoftruth: The instance-level source of truth we got from the API call

     */

    private function build_source_of_truth($localsourceoftruth) {

        $sourceoftruth = get_config('block_openai_chat', 'sourceoftruth');

        if ($sourceoftruth || $localsourceoftruth) {

            $sourceoftruth =

                get_string('sourceoftruthpreamble', 'block_openai_chat')

                . $sourceoftruth . "\n\n"

                . $localsourceoftruth . "\n\n";

            }

        $this->sourceoftruth = $sourceoftruth;

    }

}