/**
* Return a set of statistics about the number of users, groups, albums, photos, movies and
* comments available for import from the Gallery 2 instance.
*/
static function stats()
{
global $gallery;
$root_album_id = g2(GalleryCoreApi::getDefaultAlbumId());
$stats["users"] = g2(GalleryCoreApi::fetchUserCount());
$stats["groups"] = g2(GalleryCoreApi::fetchGroupCount());
$stats["albums"] = g2(GalleryCoreApi::fetchItemIdCount("GalleryAlbumItem"));
$stats["photos"] = g2(GalleryCoreApi::fetchItemIdCount("GalleryPhotoItem"));
$stats["movies"] = g2(GalleryCoreApi::fetchItemIdCount("GalleryMovieItem"));
if (g2_import::g2_module_active("comment") && module::is_active("comment")) {
GalleryCoreApi::requireOnce("modules/comment/classes/GalleryCommentHelper.class");
list(, $stats["comments"]) = g2(GalleryCommentHelper::fetchAllComments($root_album_id, 1));
} else {
$stats["comments"] = 0;
}
if (g2_import::g2_module_active("tags") && module::is_active("tag")) {
$result = g2($gallery->search("SELECT COUNT(DISTINCT([TagItemMap::itemId])) FROM [TagItemMap]"))->nextResult();
$stats["tags"] = $result[0];
} else {
$stats["tags"] = 0;
}
return $stats;
}