<?php
// Define the entry point check
define('_JEXEC', 1);

// Include Joomla framework
if (file_exists(__DIR__ . '/../defines.php')) {
    include_once __DIR__ . '/../defines.php';
}

if (!defined('_JDEFINES')) {
    define('JPATH_BASE', __DIR__ . '/..');
    require_once JPATH_BASE . '/includes/defines.php';
}

require_once JPATH_BASE . '/includes/framework.php';

// Bootstrap the CMS libraries using the new bootstrap file
require_once JPATH_LIBRARIES . '/bootstrap.php';

use Joomla\CMS\Application\CliApplication;
use Joomla\CMS\Factory;
use Joomla\CMS\Application\CMSApplicationInterface;
use Joomla\CMS\Log\Log;

class UpdateContentCli extends CliApplication implements CMSApplicationInterface
{
    protected $db;

    public function __construct()
    {
        parent::__construct();
        $this->db = Factory::getDbo(); // Use Joomla CMS Factory for database connection
        //Log::addLogger(['text_file' => 'cli_update.log.php'], Log::ALL, ['cli_update']);
    }

    public function doExecute()
    {
        try {
            $attachments = $this->getAttachments();
            $this->processAttachments($attachments);
        } catch (Exception $e) {
            $this->out('Error: ' . $e->getMessage());
            Log::add('Error: ' . $e->getMessage(), Log::ERROR, 'cli_update');
        }
    }

    protected function getAttachments()
    {
        $query = $this->db->getQuery(true)
            ->select(['parent_id', 'url', 'display_name'])
            ->from($this->db->quoteName('zfgey70wb_attachments'));
            //->where($this->db->quoteName('parent_id') . ' = 4361'); // Filter for parent_id 4361
        
        $this->db->setQuery($query);

        return $this->db->loadAssocList();
    }

    protected function processAttachments($attachments)
    {
        $groupedAttachments = [];

        // Group attachments by parent_id
        foreach ($attachments as $attachment) {
            $parentId = $attachment['parent_id'];
            $groupedAttachments[$parentId][] = $attachment;
        }

        foreach ($groupedAttachments as $parentId => $attachmentGroup) {
            $fieldValue = $this->getFieldValue($parentId);

            $existingValue = $fieldValue ? json_decode($fieldValue['value'], true) : [];
            $originalValue = $existingValue; // Keep original for comparison later

            $nextIndex = count($existingValue) + 1;

            foreach ($attachmentGroup as $attachment) {
                $isDuplicate = false;

                foreach ($existingValue as $entry) {
                    if ($entry['title'] === $attachment['display_name'] && $entry['value'] === $attachment['url']) {
                        $isDuplicate = true;
                        break;
                    }
                }

                if (!$isDuplicate) {
                    $existingValue[$nextIndex] = [
                        'title' => $attachment['display_name'],
                        'description' => '',
                        'value' => $attachment['url']
                    ];
                    $nextIndex++;
                }
            }

            if ($existingValue !== $originalValue) {
                $this->updateOrInsertFieldValue($parentId, $existingValue);
                $this->out("Updated field_value for parent_id: $parentId");
            } else {
                $this->out("No changes for parent_id: $parentId");
            }
        }
    }

    protected function getFieldValue($parentId)
    {
        $query = $this->db->getQuery(true)
            ->select(['item_id', 'field_id', 'value'])
            ->from($this->db->quoteName('zfgey70wb_fields_values'))
            ->where($this->db->quoteName('field_id') . ' = 769')
            ->where($this->db->quoteName('item_id') . ' = ' . $this->db->quote($parentId));

        $this->db->setQuery($query);

        return $this->db->loadAssoc();
    }

    protected function updateOrInsertFieldValue($parentId, $value)
    {
        $query = $this->db->getQuery(true);

        // Check if the record exists
        $existingRecord = $this->getFieldValue($parentId);

        if ($existingRecord) {
            // Update existing record using item_id and field_id
            $query
                ->update($this->db->quoteName('zfgey70wb_fields_values'))
                ->set($this->db->quoteName('value') . ' = ' . $this->db->quote(json_encode($value)))
                ->where($this->db->quoteName('item_id') . ' = ' . $this->db->quote($parentId))
                ->where($this->db->quoteName('field_id') . ' = 769');
        } else {
            // Insert new record
            $columns = ['field_id', 'item_id', 'value'];
            $values = [769, $parentId, $this->db->quote(json_encode($value))];

            $query
                ->insert($this->db->quoteName('zfgey70wb_fields_values'))
                ->columns($this->db->quoteName($columns))
                ->values(implode(',', $values));
        }

        $this->db->setQuery($query);
        $this->db->execute();
    }

    public function getName()
    {
        return 'UpdateContentCli';
    }
}

// Execute the application
try {
    // Create an instance of the application
    $app = new UpdateContentCli();
    $app->execute();
} catch (Exception $e) {
    echo 'Error: ' . $e->getMessage() . "\n";
    echo 'Trace: ' . $e->getTraceAsString() . "\n";
}