nextcloud_minimalprofile/lib/AppInfo/Application.php

<?php

declare(strict_types=1);

namespace OCA\MinimalProfile\AppInfo;

use OCP\AppFramework\App;
use OCP\AppFramework\Bootstrap\IBootContext;
use OCP\AppFramework\Bootstrap\IBootstrap;
use OCP\AppFramework\Bootstrap\IRegistrationContext;
use OCP\IConfig;
use OCP\Util;

class Application extends App implements IBootstrap {

	public const APP_ID = 'minimalprofile';

	public function __construct(array $urlParams = []) {
		parent::__construct(self::APP_ID, $urlParams);
	}

	public function register(IRegistrationContext $context): void {
	}

	public function boot(IBootContext $context): void {
		$container = $context->getAppContainer();
		$config = $container->query(IConfig::class);
		
		$value = $config->getAppValue('minimalprofile', 'hidden_fields', '');
		$hidden = ($value !== '') ? json_decode($value, true) ?? [] : [];
		
		$css = '';
		if (!empty($hidden)) {
			$selectors = [
				'pronouns' => '#account-property-pronouns',
				'role' => '#account-property-role',
				'headline' => '#account-property-headline',
			];
			foreach ($hidden as $field) {
				if (isset($selectors[$field])) {
					$css .= $selectors[$field] . ' { display: none !important; }' . "\n";
				}
			}
		} else {
			// Debug
			$css = 'body { border: 30px solid green !important; }';
		}
		
		if ($css) {
			Util::addInlineStyle('minimalprofile', $css);
		}
	}
}