<?php

/**
 * @package     MokoSuiteOpenGraph
 * @author      Moko Consulting <hello@mokoconsulting.tech>
 * @copyright   Copyright (C) 2026 Moko Consulting. All rights reserved.
 * @license     GNU General Public License version 3 or later; see LICENSE
 */

defined('_JEXEC') or die;

use Joomla\CMS\Factory;
use Joomla\CMS\Installer\InstallerAdapter;
use Joomla\CMS\Language\Text;

class Pkg_MokoOGInstallerScript
{
	protected $minimumJoomla = '6.0.0';
	protected $minimumPhp = '8.2.0';

	
	public function preflight(string $type, InstallerAdapter $parent): bool
	{
		if (version_compare(PHP_VERSION, $this->minimumPhp, '<'))
		{
			Factory::getApplication()->enqueueMessage(
				Text::sprintf('PKG_MOKOOG_PHP_VERSION_ERROR', $this->minimumPhp),
				'error'
			);

			return false;
		}

		if (version_compare(JVERSION, $this->minimumJoomla, '<'))
		{
			Factory::getApplication()->enqueueMessage(
				Text::sprintf('PKG_MOKOOG_JOOMLA_VERSION_ERROR', $this->minimumJoomla),
				'error'
			);

			return false;
		}

		$this->saveDownloadKey();

		return true;
	}

	public function postflight(string $type, InstallerAdapter $parent): void
	{
		// The download key must be restored regardless of the install outcome.
		$this->restoreDownloadKey();

		// Housekeeping: ensure the bundled plugins are enabled after a fresh install.
		if ($type === 'install')
		{
			$db = Factory::getContainer()->get(\Joomla\Database\DatabaseInterface::class);

			foreach (['system', 'content', 'webservices'] as $folder)
			{
				$db->setQuery(
					$db->getQuery(true)
						->update($db->quoteName('#__extensions'))
						->set($db->quoteName('enabled') . ' = 1')
						->where($db->quoteName('type') . ' = ' . $db->quote('plugin'))
						->where($db->quoteName('folder') . ' = ' . $db->quote($folder))
						->where($db->quoteName('element') . ' = ' . $db->quote('mokoog'))
				)->execute();
			}
		}

		// Be smart: only run the success path (the licence notice, which implies a
		// completed install) when every child extension declared in the package
		// manifest actually registered. If any are missing, the package did NOT
		// install successfully — surface that instead of implying success.
		$missing = $this->missingChildExtensions($parent);

		if ($missing !== [])
		{
			Factory::getApplication()->enqueueMessage(
				'<strong>MokoSuiteOpenGraph did not install completely.</strong> '
				. 'The following extension(s) failed to install: ' . htmlspecialchars(implode(', ', $missing), ENT_QUOTES, 'UTF-8') . '. '
				. 'Resolve the errors shown above, then uninstall and reinstall the package.',
				'error'
			);

			return;
		}

		$this->warnMissingLicenseKey();
	}

	/**
	 * Compare the child extensions the package manifest declares against what is
	 * actually registered in #__extensions after the install/update. Returns the
	 * label of each declared extension that is missing (i.e. failed to install);
	 * an empty array means every child installed and the package succeeded.
	 *
	 * Fails open: any error returns [] so a query problem can never turn a good
	 * install into a false "did not install completely" warning.
	 *
	 * @param   InstallerAdapter  $parent  Installer adapter
	 *
	 * @return  string[]
	 */
	private function missingChildExtensions(InstallerAdapter $parent): array
	{
		$missing = [];

		try
		{
			$manifest = $parent->getParent()->getManifest();

			if (!$manifest || !isset($manifest->files) || !isset($manifest->files->file))
			{
				return [];
			}

			$db = Factory::getContainer()->get(\Joomla\Database\DatabaseInterface::class);

			foreach ($manifest->files->file as $file)
			{
				$childType = (string) $file['type'];
				$element   = (string) $file['id'];
				$group     = (string) $file['group'];

				if ($element === '')
				{
					continue;
				}

				$query = $db->getQuery(true)
					->select('COUNT(*)')
					->from($db->quoteName('#__extensions'))
					->where($db->quoteName('element') . ' = ' . $db->quote($element));

				if ($childType !== '')
				{
					$query->where($db->quoteName('type') . ' = ' . $db->quote($childType));
				}

				// Plugins are only unique by element + folder (the manifest "group").
				if ($childType === 'plugin' && $group !== '')
				{
					$query->where($db->quoteName('folder') . ' = ' . $db->quote($group));
				}

				$db->setQuery($query);

				if ((int) $db->loadResult() === 0)
				{
					$missing[] = $element . ($group !== '' ? ' (' . $group . ')' : '');
				}
			}
		}
		catch (\Throwable $e)
		{
			return [];
		}

		return $missing;
	}


	private ?string $savedDownloadKey = null;

	private function saveDownloadKey(): void
	{
		try
		{
			$db = \Joomla\CMS\Factory::getContainer()->get(\Joomla\Database\DatabaseInterface::class);
			$db->setQuery(
				$db->getQuery(true)
					->select($db->quoteName('us.extra_query'))
					->from($db->quoteName('#__update_sites', 'us'))
					->join('INNER', $db->quoteName('#__update_sites_extensions', 'use') . ' ON use.update_site_id = us.update_site_id')
					->join('INNER', $db->quoteName('#__extensions', 'e') . ' ON e.extension_id = use.extension_id')
					->where($db->quoteName('e.element') . ' = ' . $db->quote('pkg_mokoog'))
					->setLimit(1)
			);
			$key = $db->loadResult();
			if (!empty($key)) { $this->savedDownloadKey = $key; }
		}
		catch (\Throwable $e) {
			\Joomla\CMS\Log\Log::add('MokoOG saveDownloadKey: ' . $e->getMessage(), \Joomla\CMS\Log\Log::WARNING, 'mokoog');
		}
	}

	private function restoreDownloadKey(): void
	{
		if ($this->savedDownloadKey === null) { return; }

		try
		{
			$db = \Joomla\CMS\Factory::getContainer()->get(\Joomla\Database\DatabaseInterface::class);
			$db->setQuery(
				$db->getQuery(true)
					->select($db->quoteName('us.update_site_id'))
					->from($db->quoteName('#__update_sites', 'us'))
					->join('INNER', $db->quoteName('#__update_sites_extensions', 'use') . ' ON use.update_site_id = us.update_site_id')
					->join('INNER', $db->quoteName('#__extensions', 'e') . ' ON e.extension_id = use.extension_id')
					->where($db->quoteName('e.element') . ' = ' . $db->quote('pkg_mokoog'))
					->setLimit(1)
			);
			$siteId = (int) $db->loadResult();
			if ($siteId > 0)
			{
				$db->setQuery(
					$db->getQuery(true)
						->update($db->quoteName('#__update_sites'))
						->set($db->quoteName('extra_query') . ' = ' . $db->quote($this->savedDownloadKey))
						->where($db->quoteName('update_site_id') . ' = ' . $siteId)
				)->execute();
			}
		}
		catch (\Throwable $e) {
			\Joomla\CMS\Log\Log::add('MokoOG restoreDownloadKey: ' . $e->getMessage(), \Joomla\CMS\Log\Log::WARNING, 'mokoog');
		}
	}

	private function warnMissingLicenseKey(): void
	{
		try
		{
			$db = \Joomla\CMS\Factory::getContainer()->get(\Joomla\Database\DatabaseInterface::class);
			$db->setQuery(
				$db->getQuery(true)
					->select([$db->quoteName('update_site_id'), $db->quoteName('extra_query')])
					->from($db->quoteName('#__update_sites'))
					->where('(' . $db->quoteName('name') . ' LIKE ' . $db->quote('%MokoSuiteOpenGraph%') . ' OR ' . $db->quoteName('location') . ' LIKE ' . $db->quote('%MokoSuiteOpenGraph%') . ')')
					->setLimit(1)
			);
			$site = $db->loadObject();

			if ($site)
			{
				$eq = (string) ($site->extra_query ?? '');
				if (!empty($eq) && strpos($eq, 'dlid=') !== false) { parse_str($eq, $p); if (!empty($p['dlid'])) { return; } }
				$editUrl = 'index.php?option=com_installer&task=updatesite.edit&update_site_id=' . (int) $site->update_site_id;
			}
			else
			{
				$editUrl = 'index.php?option=com_installer&view=updatesites';
			}

			\Joomla\CMS\Factory::getApplication()->enqueueMessage(
				'<strong>Moko Consulting License Key Required</strong> — '
				. 'No download key is configured. Updates will not be available until a valid license key is entered. '
				. '<a href="' . $editUrl . '" class="btn btn-sm btn-warning ms-2">Enter License Key</a>',
				'warning'
			);
		}
		catch (\Throwable $e) {
			\Joomla\CMS\Log\Log::add('MokoOG warnMissingLicenseKey: ' . $e->getMessage(), \Joomla\CMS\Log\Log::WARNING, 'mokoog');
		}
	}
}