<?php

namespace IvyForms\Repository\Entry;

use IvyForms\Entity\Entry\Entry;

class EntryHelper
{
    /**
     * Get the client IP address.
     *
     * @return string|null
     */
    public static function getClientIpAddress(): ?string
    {
        $ip = filter_input(INPUT_SERVER, 'REMOTE_ADDR', FILTER_VALIDATE_IP);
        return $ip ?: null;
    }

    /**
     * Get the user agent string.
     *
     * @return string
     */
    public static function getUserAgent(): string
    {
        $userAgent = filter_input(INPUT_SERVER, 'HTTP_USER_AGENT');
        return $userAgent ?: '';
    }

    /**
     * Get the source URL.
     *
     * @return string|null
     */
    public static function getSourceURL(): ?string
    {
        $sourceURL = filter_input(INPUT_SERVER, 'HTTP_REFERER');
        return $sourceURL ?: '';
    }

    /**
     * Get the browser name from the user agent string.
     *
     * @param string $userAgent
     * @return string
     */
    public static function getBrowserName(string $userAgent): string
    {
        if (str_contains($userAgent, 'Firefox')) {
            return 'Mozilla Firefox';
        } elseif (str_contains($userAgent, 'Chrome') && !str_contains($userAgent, 'Edg')) {
            return 'Google Chrome';
        } elseif (str_contains($userAgent, 'Safari') && !str_contains($userAgent, 'Chrome')) {
            return 'Apple Safari';
        } elseif (str_contains($userAgent, 'Edg')) {
            return 'Microsoft Edge';
        } elseif (str_contains($userAgent, 'MSIE') || str_contains($userAgent, 'Trident')) {
            return 'Internet Explorer';
        }
        return 'Unknown';
    }

    /**
     * Build entry data array for form submissions.
     *
     * @param int $formId
     * @return array<string, mixed>
     */
    public static function buildEntryData(int $formId): array
    {
        return [
            'formId'        => $formId,
            'userId'        => get_current_user_id() ?: null,
            'status'        => Entry::DEFAULT_STATUS,
            'ipAddress'     => self::getClientIpAddress(),
            'userAgent'     => self::getUserAgent(),
            'sourceURL'     => self::getSourceURL(),
        ];
    }
}