<?php
declare(strict_types=1);

namespace Cf7stg;

final class FlamingoHelper
{
    /**
     * Try to find the Flamingo post created by the given CF7 submission.
     * Matches by recency (created within the last 30 seconds) and a content digest.
     */
    public static function find_post_id_for_submission($submission): ?int
    {
        if (!class_exists('\\WPCF7_Submission') && !is_object($submission)) {
            return null;
        }
        $posts = get_posts([
            'post_type'      => 'flamingo_inbound',
            'post_status'    => ['flamingo-spam', 'flamingo-inbound', 'publish'],
            'posts_per_page' => 5,
            'orderby'        => 'date',
            'order'          => 'DESC',
            'date_query'     => [[
                'after' => gmdate('Y-m-d H:i:s', time() - 30),
                'inclusive' => true,
            ]],
        ]);
        if (!$posts) return null;

        // Prefer the first (most recent) — Flamingo writes one row per submission.
        return (int)$posts[0]->ID;
    }

    /**
     * Extract fields from a Flamingo inbound post.
     *
     * Flamingo's '_fields' meta stores only the field *names* with null values;
     * the actual values live in per-field meta keys prefixed with '_field_'.
     * Collect them directly.
     *
     * @return array<string,mixed>
     */
    public static function extract_fields(\WP_Post $post): array
    {
        $meta = get_post_meta($post->ID);
        $out = [];
        foreach ($meta as $key => $values) {
            if (strpos($key, '_field_') !== 0) continue;
            $name = substr($key, strlen('_field_'));
            $raw = $values[0] ?? '';
            $val = maybe_unserialize($raw);
            if (is_array($val)) {
                $val = implode(', ', array_map('strval', $val));
            }
            if ((string)$val !== '') {
                $out[$name] = $val;
            }
        }
        // Flamingo's "_from_name" and "_from_email" are derived heuristically
        // from whatever field the plugin considers the "first" — on custom
        // forms without dedicated email / name fields this produces garbage
        // (e.g. phone number under _from_email). Only trust _from_email if
        // it actually looks like an email; _from_name is not trustworthy at
        // all, so leave it to FieldDetector (run by Classifier / Message-
        // Formatter) to identify a name from any field value.
        $from_email = (string)get_post_meta($post->ID, '_from_email', true);
        if ($from_email !== '' && strpos($from_email, '@') !== false && !isset($out['your-email'])) {
            $out['your-email'] = $from_email;
        }
        return $out;
    }

    public static function extract_reason(\WP_Post $post): string
    {
        $log = (string)get_post_meta($post->ID, '_akismet', true);
        if ($log !== '') return 'Akismet';
        return 'Неизвестно';
    }
}