<?php
declare(strict_types=1);


namespace OneClickFormSync\Admin;

if (!defined('ABSPATH')) {
    exit;
}

/**
 * Helper utilities for rendering submission items in WordPress admin.
 */
class SubmissionHelper
{
    /**
     * Extract primary identifier field (e.g. email or name) from the payload.
     *
     * @param array $payload
     * @return string
     */
    public static function getMainFieldValue(array $payload): string
    {
        if (!empty($payload['user_email'])) {
            return esc_html($payload['user_email']);
        }

        $fields = isset($payload['fields']) && is_array($payload['fields']) ? $payload['fields'] : [];
        if (empty($fields) && isset($payload['row']) && is_array($payload['row'])) {
            foreach ($payload['row'] as $key => $val) {
                $fields[] = [
                    'label' => $key,
                    'id'    => sanitize_title((string)$key),
                    'value' => $val,
                ];
            }
        }

        // 1. Try to find an email field
        foreach ($fields as $field) {
            $label = (string)($field['label'] ?? '');
            $id    = (string)($field['id'] ?? '');
            if (stripos($label, 'email') !== false || stripos($id, 'email') !== false) {
                $val = is_array($field['value'] ?? '') ? implode(', ', $field['value']) : (string)($field['value'] ?? '');
                if ($val !== '') {
                    return esc_html($val);
                }
            }
        }

        // 2. Try to find a name field
        foreach ($fields as $field) {
            $label = (string)($field['label'] ?? '');
            $id    = (string)($field['id'] ?? '');
            if (stripos($label, 'name') !== false || stripos($id, 'name') !== false) {
                $val = is_array($field['value'] ?? '') ? implode(', ', $field['value']) : (string)($field['value'] ?? '');
                if ($val !== '') {
                    return esc_html($val);
                }
            }
        }

        // 3. Fallback to the first non-empty field
        foreach ($fields as $field) {
            $val = is_array($field['value'] ?? '') ? implode(', ', $field['value']) : (string)($field['value'] ?? '');
            if ($val !== '') {
                return esc_html($val);
            }
        }

        return '—';
    }

    /**
     * Get the page title from its URL.
     *
     * @param string $url
     * @return string
     */
    public static function getPageTitleByUrl(string $url): string
    {
        if (empty($url)) {
            return '—';
        }
        $postId = url_to_postid($url);
        if ($postId) {
            return esc_html(get_the_title($postId));
        }
        // Fallback to path
        $path = wp_parse_url($url, PHP_URL_PATH);
        if ($path) {
            return esc_html(trim((string)$path, '/'));
        }
        return esc_html($url);
    }
}