<?php
/**
 * @package     MokoSuiteClient
 * @subpackage  plg_system_mokosuiteclient_devtools
 * @copyright   Copyright (C) 2026 Moko Consulting. All rights reserved.
 * @license     GNU General Public License version 3 or later; see LICENSE
 */

namespace Moko\Plugin\System\MokoSuiteClientDevTools\Extension;

defined('_JEXEC') or die;

use Joomla\CMS\Factory;
use Joomla\CMS\Log\Log;
use Joomla\CMS\Plugin\CMSPlugin;
use Joomla\Event\SubscriberInterface;

/**
 * MokoSuiteClient Developer Tools Plugin
 *
 * Provides development mode (disables caching, enables debug), hit counter
 * reset, and content version cleanup.
 *
 * @since  02.32.00
 */
class DevTools extends CMSPlugin implements SubscriberInterface
{
	protected $autoloadLanguage = true;

	public static function getSubscribedEvents(): array
	{
		return [
			'onAfterInitialise'    => 'onAfterInitialise',
			'onExtensionAfterSave' => 'onExtensionAfterSave',
		];
	}

	/**
	 * Apply dev mode settings at runtime.
	 */
	public function onAfterInitialise(): void
	{
		if (!$this->params->get('dev_mode', 0))
		{
			return;
		}

		$config = Factory::getConfig();
		$config->set('caching', 0);
		$config->set('debug', 1);

		// Show offline page on primary domain
		$primaryDomain = $this->params->get('primary_domain', '');
		$currentHost   = $_SERVER['HTTP_HOST'] ?? '';

		if (!empty($primaryDomain) && $currentHost === $primaryDomain)
		{
			$config->set('offline', 1);
		}

		// Suppress hit recording by disabling the content hit counter
		$config->set('record_hits', 0);
	}

	/**
	 * Handle maintenance actions when this plugin's params are saved.
	 */
	public function onExtensionAfterSave($event): void
	{
		// Joomla 6: single event object; Joomla 5: individual args
		if (is_object($event) && method_exists($event, 'getArgument'))
		{
			$context = $event->getArgument('context', $event->getArgument(0, ''));
			$table   = $event->getArgument('subject', $event->getArgument(1, null));
		}
		else
		{
			$context = $event;
			$table   = func_get_arg(1);
		}

		if ($context !== 'com_plugins.plugin' || !$table)
		{
			return;
		}

		// Only process saves to this plugin
		if (($table->element ?? '') !== 'mokosuiteclient_devtools' || ($table->folder ?? '') !== 'system')
		{
			return;
		}

		$params = new \Joomla\Registry\Registry($table->params ?? '{}');

		// Reset hits on save if toggled on
		if ($params->get('reset_hits', 0))
		{
			$this->resetAllHits();
			$params->set('reset_hits', 0);
		}

		// Delete versions on save if toggled on
		if ($params->get('delete_versions', 0))
		{
			$this->deleteAllVersions();
			$params->set('delete_versions', 0);
		}

		// Reset download keys on save if toggled on
		if ($params->get('reset_download_keys', 0))
		{
			$this->resetDownloadKeys();
			$params->set('reset_download_keys', 0);
		}

		// Reset the one-shot toggles
		if ($table->params !== $params->toString())
		{
			$db = Factory::getDbo();
			$db->setQuery(
				$db->getQuery(true)
					->update($db->quoteName('#__extensions'))
					->set($db->quoteName('params') . ' = ' . $db->quote($params->toString()))
					->where($db->quoteName('extension_id') . ' = ' . (int) $table->extension_id)
			)->execute();
		}
	}

	private function resetAllHits(): int
	{
		$db = Factory::getDbo();
		$db->setQuery(
			$db->getQuery(true)
				->update($db->quoteName('#__content'))
				->set($db->quoteName('hits') . ' = 0')
				->where($db->quoteName('hits') . ' > 0')
		)->execute();

		$count = $db->getAffectedRows();
		$this->getApplication()->enqueueMessage(\sprintf('Reset hits on %d articles.', $count), 'message');

		return $count;
	}

	private function deleteAllVersions(): int
	{
		$db = Factory::getDbo();
		$db->setQuery(
			$db->getQuery(true)->delete($db->quoteName('#__history'))
		)->execute();

		$count = $db->getAffectedRows();
		$this->getApplication()->enqueueMessage(\sprintf('Deleted %d version history records.', $count), 'message');

		return $count;
	}

	private function resetDownloadKeys(): int
	{
		$db = Factory::getDbo();

		// Find update sites that have a dlid in extra_query
		$db->setQuery(
			$db->getQuery(true)
				->select([$db->quoteName('update_site_id'), $db->quoteName('extra_query')])
				->from($db->quoteName('#__update_sites'))
				->where($db->quoteName('extra_query') . ' LIKE ' . $db->quote('%dlid=%'))
		);

		$sites = $db->loadObjectList();
		$count = 0;

		foreach ($sites as $site)
		{
			// Parse the query string, remove dlid, rebuild
			parse_str($site->extra_query, $parsed);
			unset($parsed['dlid']);
			$newQuery = http_build_query($parsed);

			$db->setQuery(
				$db->getQuery(true)
					->update($db->quoteName('#__update_sites'))
					->set($db->quoteName('extra_query') . ' = ' . $db->quote($newQuery))
					->where($db->quoteName('update_site_id') . ' = ' . (int) $site->update_site_id)
			)->execute();

			$count++;
		}

		$this->getApplication()->enqueueMessage(\sprintf('Cleared download keys from %d update sites.', $count), 'message');

		return $count;
	}
}