<?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/>.

/**
 * Load all plugins into the admin tree.
 *
* Please note that is file is always loaded last - it means that you can inject entries into other categories too.
*
* @package    core
* @copyright  2007 Petr Skoda {@link http://skodak.org}
* @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/

if ($hassiteconfig) {
    /* @var admin_root $ADMIN */
    $ADMIN->locate('modules')->set_sorting(true);

    $ADMIN->add('modules', new admin_page_pluginsoverview());

    // activity modules
    $ADMIN->add('modules', new admin_category('modsettings', new lang_string('activitymodules')));

    $ADMIN->add('modsettings', new admin_page_managemods());

    $temp = new admin_settingpage('managemodulescommon', new lang_string('commonactivitysettings', 'admin'));
    $temp->add(new admin_setting_configcheckbox('requiremodintro',
        get_string('requiremodintro', 'admin'), get_string('requiremodintro_desc', 'admin'), 0));
    $ADMIN->add('modsettings', $temp);

    foreach (core_plugin_manager::instance()->get_plugins_of_type('mod') as $plugin) {
        /** @var \core\plugininfo\mod $plugin */
        $plugin->load_settings($ADMIN, 'modsettings', $hassiteconfig);
    }

    // course formats
    $ADMIN->add('modules', new admin_category('formatsettings', new lang_string('courseformats')));
    $temp = new admin_settingpage('manageformats', new lang_string('manageformats', 'core_admin'));
    $temp->add(new admin_setting_manageformats());
    $ADMIN->add('formatsettings', $temp);
    foreach (core_plugin_manager::instance()->get_plugins_of_type('format') as $plugin) {
        /** @var \core\plugininfo\format $plugin */
        $plugin->load_settings($ADMIN, 'formatsettings', $hassiteconfig);
    }

    // blocks
    $ADMIN->add('modules', new admin_category('blocksettings', new lang_string('blocks')));
    $ADMIN->add('blocksettings', new admin_page_manageblocks());
    foreach (core_plugin_manager::instance()->get_plugins_of_type('block') as $plugin) {
        /** @var \core\plugininfo\block $plugin */
        $plugin->load_settings($ADMIN, 'blocksettings', $hassiteconfig);
    }

    // message outputs
    $ADMIN->add('modules', new admin_category('messageoutputs', new lang_string('messageoutputs', 'message')));
    $ADMIN->add('messageoutputs', new admin_page_managemessageoutputs());
    $ADMIN->add('messageoutputs', new admin_page_defaultmessageoutputs());
    foreach (core_plugin_manager::instance()->get_plugins_of_type('message') as $plugin) {
        /** @var \core\plugininfo\message $plugin */
        $plugin->load_settings($ADMIN, 'messageoutputs', $hassiteconfig);
    }

    // authentication plugins
    $ADMIN->add('modules', new admin_category('authsettings', new lang_string('authentication', 'admin')));

    $temp = new admin_settingpage('manageauths', new lang_string('authsettings', 'admin'));
    $temp->add(new admin_setting_manageauths());
    $temp->add(new admin_setting_heading('manageauthscommonheading', new lang_string('commonsettings', 'admin'), ''));
    $temp->add(new admin_setting_special_registerauth());
    $temp->add(new admin_setting_configcheckbox('authloginviaemail', new lang_string('authloginviaemail', 'core_auth'), new lang_string('authloginviaemail_desc', 'core_auth'), 0));
    $temp->add(new admin_setting_configcheckbox('allowaccountssameemail',
                    new lang_string('allowaccountssameemail', 'core_auth'),
                    new lang_string('allowaccountssameemail_desc', 'core_auth'), 0));
    $temp->add(new admin_setting_configcheckbox('authpreventaccountcreation', new lang_string('authpreventaccountcreation', 'admin'), new lang_string('authpreventaccountcreation_help', 'admin'), 0));
    $temp->add(new admin_setting_configcheckbox('loginpageautofocus', new lang_string('loginpageautofocus', 'admin'), new lang_string('loginpageautofocus_help', 'admin'), 0));
    $temp->add(new admin_setting_configselect('guestloginbutton', new lang_string('guestloginbutton', 'auth'),
                                              new lang_string('showguestlogin', 'auth'), '1', array('0'=>new lang_string('hide'), '1'=>new lang_string('show'))));
    $options = array(0 => get_string('no'), 1 => 1, 2 => 2, 3 => 3, 4 => 4, 5 => 5, 10 => 10, 20 => 20, 50 => 50);
    $temp->add(new admin_setting_configselect('limitconcurrentlogins',
        new lang_string('limitconcurrentlogins', 'core_auth'),
        new lang_string('limitconcurrentlogins_desc', 'core_auth'), 0, $options));
    $temp->add(new admin_setting_configtext('alternateloginurl', new lang_string('alternateloginurl', 'auth'),
                                            new lang_string('alternatelogin', 'auth', htmlspecialchars(get_login_url())), ''));
    $temp->add(new admin_setting_configtext('forgottenpasswordurl', new lang_string('forgottenpasswordurl', 'auth'),
                                            new lang_string('forgottenpassword', 'auth'), ''));
    $temp->add(new admin_setting_confightmleditor('auth_instructions', new lang_string('instructions', 'auth'),
                                                new lang_string('authinstructions', 'auth'), ''));
    $temp->add(new admin_setting_configtext('allowemailaddresses', new lang_string('allowemailaddresses', 'admin'), new lang_string('configallowemailaddresses', 'admin'), '', PARAM_NOTAGS));
    $temp->add(new admin_setting_configtext('denyemailaddresses', new lang_string('denyemailaddresses', 'admin'), new lang_string('configdenyemailaddresses', 'admin'), '', PARAM_NOTAGS));
    $temp->add(new admin_setting_configcheckbox('verifychangedemail', new lang_string('verifychangedemail', 'admin'), new lang_string('configverifychangedemail', 'admin'), 1));

    $temp->add(new admin_setting_configtext('recaptchapublickey', new lang_string('recaptchapublickey', 'admin'), new lang_string('configrecaptchapublickey', 'admin'), '', PARAM_NOTAGS));
    $temp->add(new admin_setting_configtext('recaptchaprivatekey', new lang_string('recaptchaprivatekey', 'admin'), new lang_string('configrecaptchaprivatekey', 'admin'), '', PARAM_NOTAGS));
    $ADMIN->add('authsettings', $temp);

    $temp = new admin_externalpage('authtestsettings', get_string('testsettings', 'core_auth'), new moodle_url("/auth/test_settings.php"), 'moodle/site:config', true);
    $ADMIN->add('authsettings', $temp);

    foreach (core_plugin_manager::instance()->get_plugins_of_type('auth') as $plugin) {
        /** @var \core\plugininfo\auth $plugin */
        $plugin->load_settings($ADMIN, 'authsettings', $hassiteconfig);
    }

    // Enrolment plugins
    $ADMIN->add('modules', new admin_category('enrolments', new lang_string('enrolments', 'enrol')));
    $temp = new admin_settingpage('manageenrols', new lang_string('manageenrols', 'enrol'));
    $temp->add(new admin_setting_manageenrols());
    $ADMIN->add('enrolments', $temp);

    $temp = new admin_externalpage('enroltestsettings', get_string('testsettings', 'core_enrol'), new moodle_url("/enrol/test_settings.php"), 'moodle/site:config', true);
    $ADMIN->add('enrolments', $temp);

    foreach(core_plugin_manager::instance()->get_plugins_of_type('enrol') as $plugin) {
        /** @var \core\plugininfo\enrol $plugin */
        $plugin->load_settings($ADMIN, 'enrolments', $hassiteconfig);
    }


/// Editor plugins
    $ADMIN->add('modules', new admin_category('editorsettings', new lang_string('editors', 'editor')));
    $temp = new admin_settingpage('manageeditors', new lang_string('editorsettings', 'editor'));
    $temp->add(new admin_setting_manageeditors());
    $ADMIN->add('editorsettings', $temp);
    foreach (core_plugin_manager::instance()->get_plugins_of_type('editor') as $plugin) {
        /** @var \core\plugininfo\editor $plugin */
        $plugin->load_settings($ADMIN, 'editorsettings', $hassiteconfig);
    }

/// License types
    $ADMIN->add('modules', new admin_category('licensesettings', new lang_string('licenses')));
    $temp = new admin_settingpage('managelicenses', new lang_string('managelicenses', 'admin'));

    require_once($CFG->libdir . '/licenselib.php');
    $licenses = array();
    $array = explode(',', $CFG->licenses);
    foreach ($array as $value) {
        $licenses[$value] = new lang_string($value, 'license');
    }
    $temp->add(new admin_setting_configselect('sitedefaultlicense', new lang_string('configsitedefaultlicense','admin'), new lang_string('configsitedefaultlicensehelp','admin'), 'allrightsreserved', $licenses));
    $temp->add(new admin_setting_managelicenses());
    $ADMIN->add('licensesettings', $temp);

/// Filter plugins
    $ADMIN->add('modules', new admin_category('filtersettings', new lang_string('managefilters')));

    $ADMIN->add('filtersettings', new admin_page_managefilters());

    // "filtersettings" settingpage
    $temp = new admin_settingpage('commonfiltersettings', new lang_string('commonfiltersettings', 'admin'));
    if ($ADMIN->fulltree) {
        $items = array();
        $items[] = new admin_setting_configselect('filteruploadedfiles', new lang_string('filteruploadedfiles', 'admin'), new lang_string('configfilteruploadedfiles', 'admin'), 0,
                array('0' => new lang_string('none'), '1' => new lang_string('allfiles'), '2' => new lang_string('htmlfilesonly')));
        $items[] = new admin_setting_configcheckbox('filtermatchoneperpage', new lang_string('filtermatchoneperpage', 'admin'), new lang_string('configfiltermatchoneperpage', 'admin'), 0);
        $items[] = new admin_setting_configcheckbox('filtermatchonepertext', new lang_string('filtermatchonepertext', 'admin'), new lang_string('configfiltermatchonepertext', 'admin'), 0);
        foreach ($items as $item) {
            $item->set_updatedcallback('reset_text_filters_cache');
            $temp->add($item);
        }
    }
    $ADMIN->add('filtersettings', $temp);

    foreach (core_plugin_manager::instance()->get_plugins_of_type('filter') as $plugin) {
        /** @var \core\plugininfo\filter $plugin */
        $plugin->load_settings($ADMIN, 'filtersettings', $hassiteconfig);
    }


    //== Portfolio settings ==
    require_once($CFG->libdir. '/portfoliolib.php');
    $catname = new lang_string('portfolios', 'portfolio');
    $manage = new lang_string('manageportfolios', 'portfolio');
    $url = "$CFG->wwwroot/$CFG->admin/portfolio.php";

    $ADMIN->add('modules', new admin_category('portfoliosettings', $catname, empty($CFG->enableportfolios)));

    // Add manage page (with table)
    $temp = new admin_page_manageportfolios();
    $ADMIN->add('portfoliosettings', $temp);

    // Add common settings page
    $temp = new admin_settingpage('manageportfolioscommon', new lang_string('commonportfoliosettings', 'portfolio'));
    $temp->add(new admin_setting_heading('manageportfolioscommon', '', new lang_string('commonsettingsdesc', 'portfolio')));
    $fileinfo = portfolio_filesize_info(); // make sure this is defined in one place since its used inside portfolio too to detect insane settings
    $fileoptions = $fileinfo['options'];
    $temp->add(new admin_setting_configselect(
        'portfolio_moderate_filesize_threshold',
        new lang_string('moderatefilesizethreshold', 'portfolio'),
        new lang_string('moderatefilesizethresholddesc', 'portfolio'),
        $fileinfo['moderate'], $fileoptions));
    $temp->add(new admin_setting_configselect(
        'portfolio_high_filesize_threshold',
        new lang_string('highfilesizethreshold', 'portfolio'),
        new lang_string('highfilesizethresholddesc', 'portfolio'),
        $fileinfo['high'], $fileoptions));

    $temp->add(new admin_setting_configtext(
        'portfolio_moderate_db_threshold',
        new lang_string('moderatedbsizethreshold', 'portfolio'),
        new lang_string('moderatedbsizethresholddesc', 'portfolio'),
        20, PARAM_INT, 3));

    $temp->add(new admin_setting_configtext(
        'portfolio_high_db_threshold',
        new lang_string('highdbsizethreshold', 'portfolio'),
        new lang_string('highdbsizethresholddesc', 'portfolio'),
        50, PARAM_INT, 3));

    $ADMIN->add('portfoliosettings', $temp);
    $ADMIN->add('portfoliosettings', new admin_externalpage('portfolionew', new lang_string('addnewportfolio', 'portfolio'), $url, 'moodle/site:config', true));
    $ADMIN->add('portfoliosettings', new admin_externalpage('portfoliodelete', new lang_string('deleteportfolio', 'portfolio'), $url, 'moodle/site:config', true));
    $ADMIN->add('portfoliosettings', new admin_externalpage('portfoliocontroller', new lang_string('manageportfolios', 'portfolio'), $url, 'moodle/site:config', true));

    foreach (portfolio_instances(false, false) as $portfolio) {
        require_once($CFG->dirroot . '/portfolio/' . $portfolio->get('plugin') . '/lib.php');
        $classname = 'portfolio_plugin_' . $portfolio->get('plugin');
        $ADMIN->add(
            'portfoliosettings',
            new admin_externalpage(
                'portfoliosettings' . $portfolio->get('id'),
                $portfolio->get('name'),
                $url . '?action=edit&pf=' . $portfolio->get('id'),
                'moodle/site:config'
            )
        );
    }

    // repository setting
    require_once("$CFG->dirroot/repository/lib.php");
    $catname =new lang_string('repositories', 'repository');
    $managerepo = new lang_string('manage', 'repository');
    $url = $CFG->wwwroot.'/'.$CFG->admin.'/repository.php';
    $ADMIN->add('modules', new admin_category('repositorysettings', $catname));

    // Add main page (with table)
    $temp = new admin_page_managerepositories();
    $ADMIN->add('repositorysettings', $temp);

    // Add common settings page
    $temp = new admin_settingpage('managerepositoriescommon', new lang_string('commonrepositorysettings', 'repository'));
    $temp->add(new admin_setting_configtext('repositorycacheexpire', new lang_string('cacheexpire', 'repository'), new lang_string('configcacheexpire', 'repository'), 120, PARAM_INT));
    $temp->add(new admin_setting_configtext('repositorygetfiletimeout', new lang_string('getfiletimeout', 'repository'), new lang_string('configgetfiletimeout', 'repository'), 30, PARAM_INT));
    $temp->add(new admin_setting_configtext('repositorysyncfiletimeout', new lang_string('syncfiletimeout', 'repository'), new lang_string('configsyncfiletimeout', 'repository'), 1, PARAM_INT));
    $temp->add(new admin_setting_configtext('repositorysyncimagetimeout', new lang_string('syncimagetimeout', 'repository'), new lang_string('configsyncimagetimeout', 'repository'), 3, PARAM_INT));
    $temp->add(new admin_setting_configcheckbox('repositoryallowexternallinks', new lang_string('allowexternallinks', 'repository'), new lang_string('configallowexternallinks', 'repository'), 1));
    $temp->add(new admin_setting_configcheckbox('legacyfilesinnewcourses', new lang_string('legacyfilesinnewcourses', 'admin'), new lang_string('legacyfilesinnewcourses_help', 'admin'), 0));
    $temp->add(new admin_setting_configcheckbox('legacyfilesaddallowed', new lang_string('legacyfilesaddallowed', 'admin'), new lang_string('legacyfilesaddallowed_help', 'admin'), 1));
    $ADMIN->add('repositorysettings', $temp);
    $ADMIN->add('repositorysettings', new admin_externalpage('repositorynew',
        new lang_string('addplugin', 'repository'), $url, 'moodle/site:config', true));
    $ADMIN->add('repositorysettings', new admin_externalpage('repositorydelete',
        new lang_string('deleterepository', 'repository'), $url, 'moodle/site:config', true));
    $ADMIN->add('repositorysettings', new admin_externalpage('repositorycontroller',
        new lang_string('manage', 'repository'), $url, 'moodle/site:config', true));
    $ADMIN->add('repositorysettings', new admin_externalpage('repositoryinstancenew',
        new lang_string('createrepository', 'repository'), $url, 'moodle/site:config', true));
    $ADMIN->add('repositorysettings', new admin_externalpage('repositoryinstanceedit',
        new lang_string('editrepositoryinstance', 'repository'), $url, 'moodle/site:config', true));
    foreach (core_plugin_manager::instance()->get_plugins_of_type('repository') as $plugin) {
        /** @var \core\plugininfo\repository $plugin */
        $plugin->load_settings($ADMIN, 'repositorysettings', $hassiteconfig);
    }

/// Web services
    $ADMIN->add('modules', new admin_category('webservicesettings', new lang_string('webservices', 'webservice')));
    // Mobile
    $temp = new admin_settingpage('mobile', new lang_string('mobile','admin'), 'moodle/site:config', false);

    // We should wait to the installation to finish since we depend on some configuration values that are set once
    // the admin user profile is configured.
    if (!during_initial_install()) {
        $enablemobiledocurl = new moodle_url(get_docs_url('Enable_mobile_web_services'));
        $enablemobiledoclink = html_writer::link($enablemobiledocurl, new lang_string('documentation'));
        $default = is_https() ? 1 : 0;
        $temp->add(new admin_setting_enablemobileservice('enablemobilewebservice',
                new lang_string('enablemobilewebservice', 'admin'),
                new lang_string('configenablemobilewebservice', 'admin', $enablemobiledoclink), $default));
    }

    $temp->add(new admin_setting_configtext('mobilecssurl', new lang_string('mobilecssurl', 'admin'), new lang_string('configmobilecssurl','admin'), '', PARAM_URL));
    $ADMIN->add('webservicesettings', $temp);
    /// overview page
    $temp = new admin_settingpage('webservicesoverview', new lang_string('webservicesoverview', 'webservice'));
    $temp->add(new admin_setting_webservicesoverview());
    $ADMIN->add('webservicesettings', $temp);
    //API documentation
    $ADMIN->add('webservicesettings', new admin_externalpage('webservicedocumentation', new lang_string('wsdocapi', 'webservice'), "$CFG->wwwroot/$CFG->admin/webservice/documentation.php", 'moodle/site:config', false));
    /// manage service
    $temp = new admin_settingpage('externalservices', new lang_string('externalservices', 'webservice'));
    $temp->add(new admin_setting_heading('manageserviceshelpexplaination', new lang_string('information', 'webservice'), new lang_string('servicehelpexplanation', 'webservice')));
    $temp->add(new admin_setting_manageexternalservices());
    $ADMIN->add('webservicesettings', $temp);
    $ADMIN->add('webservicesettings', new admin_externalpage('externalservice', new lang_string('editaservice', 'webservice'), "$CFG->wwwroot/$CFG->admin/webservice/service.php", 'moodle/site:config', true));
    $ADMIN->add('webservicesettings', new admin_externalpage('externalservicefunctions', new lang_string('externalservicefunctions', 'webservice'), "$CFG->wwwroot/$CFG->admin/webservice/service_functions.php", 'moodle/site:config', true));
    $ADMIN->add('webservicesettings', new admin_externalpage('externalserviceusers', new lang_string('externalserviceusers', 'webservice'), "$CFG->wwwroot/$CFG->admin/webservice/service_users.php", 'moodle/site:config', true));
    $ADMIN->add('webservicesettings', new admin_externalpage('externalserviceusersettings', new lang_string('serviceusersettings', 'webservice'), "$CFG->wwwroot/$CFG->admin/webservice/service_user_settings.php", 'moodle/site:config', true));
    /// manage protocol page link
    $temp = new admin_settingpage('webserviceprotocols', new lang_string('manageprotocols', 'webservice'));
    $temp->add(new admin_setting_managewebserviceprotocols());
    if (empty($CFG->enablewebservices)) {
        $temp->add(new admin_setting_heading('webservicesaredisabled', '', new lang_string('disabledwarning', 'webservice')));
    }

    // We cannot use $OUTPUT this early, doing so means that we lose the ability
    // to set the page layout on all admin pages.
    // $wsdoclink = $OUTPUT->doc_link('How_to_get_a_security_key');
    $url = new moodle_url(get_docs_url('How_to_get_a_security_key'));
    $wsdoclink = html_writer::tag('a', new lang_string('supplyinfo', 'webservice'), array('href'=>$url));
    $temp->add(new admin_setting_configcheckbox('enablewsdocumentation', new lang_string('enablewsdocumentation',
                        'admin'), new lang_string('configenablewsdocumentation', 'admin', $wsdoclink), false));
    $ADMIN->add('webservicesettings', $temp);
    /// links to protocol pages
    foreach (core_plugin_manager::instance()->get_plugins_of_type('webservice') as $plugin) {
        /** @var \core\plugininfo\webservice $plugin */
        $plugin->load_settings($ADMIN, 'webservicesettings', $hassiteconfig);
    }
    /// manage token page link
    $ADMIN->add('webservicesettings', new admin_externalpage('addwebservicetoken', new lang_string('managetokens', 'webservice'), "$CFG->wwwroot/$CFG->admin/webservice/tokens.php", 'moodle/site:config', true));
    $temp = new admin_settingpage('webservicetokens', new lang_string('managetokens', 'webservice'));
    $temp->add(new admin_setting_managewebservicetokens());
    if (empty($CFG->enablewebservices)) {
        $temp->add(new admin_setting_heading('webservicesaredisabled', '', new lang_string('disabledwarning', 'webservice')));
    }
    $ADMIN->add('webservicesettings', $temp);
}

// Question type settings
if ($hassiteconfig || has_capability('moodle/question:config', $systemcontext)) {

    // Question behaviour settings.
    $ADMIN->add('modules', new admin_category('qbehavioursettings', new lang_string('questionbehaviours', 'admin')));
    $ADMIN->add('qbehavioursettings', new admin_page_manageqbehaviours());

    // Question type settings.
    $ADMIN->add('modules', new admin_category('qtypesettings', new lang_string('questiontypes', 'admin')));
    $ADMIN->add('qtypesettings', new admin_page_manageqtypes());

    // Question preview defaults.
    $settings = new admin_settingpage('qdefaultsetting',
            get_string('questionpreviewdefaults', 'question'),
            'moodle/question:config');
    $ADMIN->add('qtypesettings', $settings);

    $settings->add(new admin_setting_heading('qdefaultsetting_preview_options',
            '', get_string('questionpreviewdefaults_desc', 'question')));

    // These keys are question_display_options::HIDDEN and VISIBLE.
    $hiddenofvisible = array(
        0 => get_string('notshown', 'question'),
        1 => get_string('shown', 'question'),
    );

    $settings->add(new admin_setting_question_behaviour('question_preview/behaviour',
            get_string('howquestionsbehave', 'question'), '',
                    'deferredfeedback'));

    $settings->add(new admin_setting_configselect('question_preview/correctness',
            get_string('whethercorrect', 'question'), '', 1, $hiddenofvisible));

    // These keys are question_display_options::HIDDEN, MARK_ONLY and MARK_AND_MAX.
    $marksoptions = array(
        0 => get_string('notshown', 'question'),
        1 => get_string('showmaxmarkonly', 'question'),
        2 => get_string('showmarkandmax', 'question'),
    );
    $settings->add(new admin_setting_configselect('question_preview/marks',
            get_string('marks', 'question'), '', 2, $marksoptions));

    $settings->add(new admin_setting_configselect('question_preview/markdp',
            get_string('decimalplacesingrades', 'question'), '', 2, array(0, 1, 2, 3, 4, 5, 6, 7)));

    $settings->add(new admin_setting_configselect('question_preview/feedback',
            get_string('specificfeedback', 'question'), '', 1, $hiddenofvisible));

    $settings->add(new admin_setting_configselect('question_preview/generalfeedback',
            get_string('generalfeedback', 'question'), '', 1, $hiddenofvisible));

    $settings->add(new admin_setting_configselect('question_preview/rightanswer',
            get_string('rightanswer', 'question'), '', 1, $hiddenofvisible));

    $settings->add(new admin_setting_configselect('question_preview/history',
            get_string('responsehistory', 'question'), '', 0, $hiddenofvisible));

    // Settings for particular question types.
    foreach (core_plugin_manager::instance()->get_plugins_of_type('qtype') as $plugin) {
        /** @var \core\plugininfo\qtype $plugin */
        $plugin->load_settings($ADMIN, 'qtypesettings', $hassiteconfig);
    }
}

// Plagiarism plugin settings
if ($hassiteconfig && !empty($CFG->enableplagiarism)) {
    $ADMIN->add('modules', new admin_category('plagiarism', new lang_string('plagiarism', 'plagiarism')));
    $ADMIN->add('plagiarism', new admin_externalpage('manageplagiarismplugins', new lang_string('manageplagiarism', 'plagiarism'),
        $CFG->wwwroot . '/' . $CFG->admin . '/plagiarism.php'));

    foreach (core_plugin_manager::instance()->get_plugins_of_type('plagiarism') as $plugin) {
        /** @var \core\plugininfo\plagiarism $plugin */
        $plugin->load_settings($ADMIN, 'plagiarism', $hassiteconfig);
    }
}
$ADMIN->add('reports', new admin_externalpage('comments', new lang_string('comments'), $CFG->wwwroot.'/comment/', 'moodle/site:viewreports'));

// Course reports settings
if ($hassiteconfig) {
    $pages = array();
    foreach (core_component::get_plugin_list('coursereport') as $report => $path) {
        $file = $CFG->dirroot . '/course/report/' . $report . '/settings.php';
        if (file_exists($file)) {
            $settings = new admin_settingpage('coursereport' . $report,
                    new lang_string('pluginname', 'coursereport_' . $report), 'moodle/site:config');
            // settings.php may create a subcategory or unset the settings completely
            include($file);
            if ($settings) {
                $pages[] = $settings;
            }
        }
    }
    if (!empty($pages)) {
        $ADMIN->add('modules', new admin_category('coursereports', new lang_string('coursereports')));
        foreach ($pages as $page) {
            $ADMIN->add('coursereports', $page);
        }
    }
    unset($pages);
}

// Now add reports
$pages = array();
foreach (core_component::get_plugin_list('report') as $report => $plugindir) {
    $settings_path = "$plugindir/settings.php";
    if (file_exists($settings_path)) {
        $settings = new admin_settingpage('report' . $report,
                new lang_string('pluginname', 'report_' . $report), 'moodle/site:config');
        include($settings_path);
        if ($settings) {
            $pages[] = $settings;
        }
    }
}
$ADMIN->add('modules', new admin_category('reportplugins', new lang_string('reports')));
$ADMIN->add('reportplugins', new admin_externalpage('managereports', new lang_string('reportsmanage', 'admin'),
                                                    $CFG->wwwroot . '/' . $CFG->admin . '/reports.php'));
foreach ($pages as $page) {
    $ADMIN->add('reportplugins', $page);
}

/// Add all admin tools
if ($hassiteconfig) {
    $ADMIN->add('modules', new admin_category('tools', new lang_string('tools', 'admin')));
    $ADMIN->add('tools', new admin_externalpage('managetools', new lang_string('toolsmanage', 'admin'),
                                                     $CFG->wwwroot . '/' . $CFG->admin . '/tools.php'));
}

// Now add various admin tools.
foreach (core_plugin_manager::instance()->get_plugins_of_type('tool') as $plugin) {
    /** @var \core\plugininfo\tool $plugin */
    $plugin->load_settings($ADMIN, null, $hassiteconfig);
}

// Now add the Cache plugins
if ($hassiteconfig) {
    $ADMIN->add('modules', new admin_category('cache', new lang_string('caching', 'cache')));
    $ADMIN->add('cache', new admin_externalpage('cacheconfig', new lang_string('cacheconfig', 'cache'), $CFG->wwwroot .'/cache/admin.php'));
    $ADMIN->add('cache', new admin_externalpage('cachetestperformance', new lang_string('testperformance', 'cache'), $CFG->wwwroot . '/cache/testperformance.php'));
    $ADMIN->add('cache', new admin_category('cachestores', new lang_string('cachestores', 'cache')));
    foreach (core_component::get_plugin_list('cachestore') as $plugin => $path) {
        $settingspath = $path.'/settings.php';
        if (file_exists($settingspath)) {
            $settings = new admin_settingpage('cachestore_'.$plugin.'_settings', new lang_string('pluginname', 'cachestore_'.$plugin), 'moodle/site:config');
            include($settingspath);
            $ADMIN->add('cachestores', $settings);
        }
    }
}

// Add Calendar type settings.
if ($hassiteconfig) {
    $ADMIN->add('modules', new admin_category('calendartype', new lang_string('calendartypes', 'calendar')));
    foreach (core_component::get_plugin_list_with_file('calendartype', 'settings.php') as $plugin => $settingspath) {
        $settings = new admin_settingpage('calendartype_' . $plugin . '_settings', new lang_string('pluginname', 'calendartype_' . $plugin), 'moodle/site:config');
        include($settingspath);
        $ADMIN->add('calendartype', $settings);
    }
}

/// Add all local plugins - must be always last!
if ($hassiteconfig) {
    $ADMIN->add('modules', new admin_category('localplugins', new lang_string('localplugins')));
    $ADMIN->add('localplugins', new admin_externalpage('managelocalplugins', new lang_string('localpluginsmanage'),
                                                        $CFG->wwwroot . '/' . $CFG->admin . '/localplugins.php'));
}

// Extend settings for each local plugin. Note that their settings may be in any part of the
// settings tree and may be visible not only for administrators.
foreach (core_plugin_manager::instance()->get_plugins_of_type('local') as $plugin) {
    /** @var \core\plugininfo\local $plugin */
    $plugin->load_settings($ADMIN, null, $hassiteconfig);
}