Description

The Pro plugin's MaxMindDetailsAddon (Advanced Whois feature) references SlimStat\Services\GeoIP class and suppress-loads /wp-slimstat/src/Services/GeoIP.php, but the free plugin no longer ships that file or class.

The geolocation stack was refactored to:

• SlimStat\Services\Geolocation\GeolocationService
• SlimStat\Services\Geolocation\GeolocationFactory
• SlimStat\Services\Geolocation\Provider\* (DbIpProvider, MaxmindGeoIPProvider, CloudflareGeolocationProvider)
• SlimStat\Services\Geolocation\AbstractGeoIPProvider

Affected Code

wp-slimstat-pro/src/Addon/Addons/MaxMindDetailsAddon.php:

• Line 86: !\SlimStat\Services\GeoIP::database_exists() — class does not exist
• Line 91: @include_once(WP_PLUGIN_DIR . '/wp-slimstat/src/Services/GeoIP.php') — file does not exist
• Line 92: GeoIP::loader($ip) — class does not exist

Impact

When a user clicks the Advanced Whois/IP Details link in the SlimStat admin reports, the AJAX handler will fatal error because the included file and class no longer exist. The @include_once suppresses the include warning but GeoIP::loader() on line 92 will cause a fatal "Class not found" error.

Steps to Reproduce

1. Activate wp-slimstat + wp-slimstat-pro
2. View SlimStat reports
3. Click on an IP address to view Whois/geolocation details
4. Expected: IP details popup with geolocation info
5. Actual: Fatal error (Class 'GeoIP' not found)

Suggested Fix

Update MaxMindDetailsAddon.php to use the new geolocation API:

• Replace GeoIP::database_exists() with a check via GeolocationFactory or the geolocation_provider setting
• Replace GeoIP::loader($ip) with GeolocationService::locate($ip) using the configured provider

Discovery Context

Found during PR #152 (Cloudflare IP geolocation fix) QA verification. This is a pre-existing issue not introduced by that PR.