settings.php

<?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/>.
/**
 * Settings page
 *
 * @package    local_ai_connect
 * @copyright  2023 Enovation
 * @author Olgierd Dziminski
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */

defined('MOODLE_INTERNAL') || die();

if ($hassiteconfig) {
    $settings = new admin_settingpage('local_ai_connector', get_string('pluginname', 'local_ai_connector'));

    // OpenAI.
    $name = new lang_string('openaisettings', 'local_ai_connector');
    $description = new lang_string('openaisettings_help', 'local_ai_connector');
    $settings->add(new admin_setting_heading('openaisettings', $name, $description));

    $settings->add(new admin_setting_configtext(
        'local_ai_connector/openaiapikey',
        get_string('openaiapikey', 'local_ai_connector'),
        get_string('openaiapikey_desc', 'local_ai_connector'),
        ''
    ));


    $settings->add(new admin_setting_configtextarea(
        'local_ai_connector/source_of_truth',
        get_string('sourceoftruth', 'local_ai_connector'),
        get_string('sourceoftruth_desc', 'local_ai_connector'),
        ''
    ));

    $settings->add(new admin_setting_configselect(
        'local_ai_connector/model',
        get_string('model', 'local_ai_connector'),
        get_string('model_desc', 'local_ai_connector'),
        'gpt-3.5-turbo',
        [
            'gpt-3.5-turbo' => 'gpt-3.5-turbo',
            'gpt-3.5-turbo-0301' => 'gpt-3.5-turbo-0301',
            'gpt-4' => 'gpt-4',
            'gpt-4-0314' => 'gpt-4-0314',
            'gpt-4-32k' => 'gpt-4-32k',
            'gpt-4-32k-0314' => 'gpt-4-32k-0314',
            'text-babbage-001' => 'text-babbage-001',
            'text-ada-001' => 'text-ada-001',
            'text-curie-001' => 'text-curie-001',
            'text-davinci-002' => 'text-davinci-002',
            'text-davinci-003' => 'text-davinci-003'
        ]
    ));
    $settings->add(new admin_setting_configtext(
        'local_ai_connector/temperature',
        get_string('temperature', 'local_ai_connector'),
        get_string('temperature_desc', 'local_ai_connector'),
        '0.5',
        PARAM_FLOAT
    ));

    $settings->add(new admin_setting_configtext(
        'local_ai_connector/top_p',
        get_string('top_p', 'local_ai_connector'),
        get_string('top_p_desc', 'local_ai_connector'),
        ''
    ));

    $settings->add(new admin_setting_configtext(
        'local_ai_connector/frequency_penalty',
        get_string('frequency_penalty', 'local_ai_connector'),
        get_string('frequency_penalty_desc', 'local_ai_connector'),
        ''
    ));

    $settings->add(new admin_setting_configtext(
        'local_ai_connector/presence_penalty',
        get_string('presence_penalty', 'local_ai_connector'),
        get_string('presence_penalty_desc', 'local_ai_connector'),
        ''
    ));

    // DeepAI.
    $name = new lang_string('deepaisettings', 'local_ai_connector');
    $description = new lang_string('deepaisettings_help', 'local_ai_connector');
    $settings->add(new admin_setting_heading('deepaisettings', $name, $description));

    $settings->add(new admin_setting_configtext(
        'local_ai_connector/deepaiapikey',
        get_string('deepaiapikey', 'local_ai_connector'),
        '',
        ''
    ));

    $url = new moodle_url('../local/ai_connector/test.php');
    $link = html_writer::link($url, get_string('testaiservices', 'local_ai_connector'));
    $settings->add(new admin_setting_heading('testaiconfiguration', new lang_string('testaiconfiguration', 'local_ai_connector'),
        new lang_string('testoutgoingmaildetail', 'admin', $link)));
    $ADMIN->add('localplugins', $settings);

}