fipamo/brain/data/Settings.inc.php

<?php
use function _\find;
class Settings
{
  private $folks;
  private $tags;
  private static $settings;

  public function __construct()
  {
    //gets all settings files and converts to php objects
    $this->folks = json_decode(file_get_contents("../config/folks.json"), true);
    $this->tags = json_decode(file_get_contents("../config/tags.json"), true);
    self::$settings = json_decode(
      file_get_contents("../config/settings.json"),
      true
    );
  }

  public function getFolks($key = null)
  {
    if (isset($key)) {
      $member = Session::get("member");
      $found = find($this->folks, ["handle" => $member["handle"]]);
      return $found[$key];
    } else {
      return $this->folks;
    }
  }

  public static function getCurrentIndex()
  {
    $settings = self::$settings;
    return $settings["library_stats"]["current_index"];
  }

  public static function updateIndex()
  {
    $settings = self::$settings;
    $index = $settings["library_stats"]["current_index"];
    $settings["library_stats"]["current_index"] = $index + 1;

    DocTools::writeSettings("../config/settings.json", $settings);
  }
}