fipamo/brain/data/Book.inc.php

<?php

use Mni\FrontYAML\Parser;
use function _\orderBy;

class Book
{
  public $files = [];

  public function __construct($folder)
  {
    $this->read($folder);
  }
  public function read($folder)
  {
    $folders = glob("$folder/*", GLOB_ONLYDIR);
    foreach ($folders as $folder) {
      //$this->files[] = $folder . "/";
      $this->read($folder);
    }
    $files = array_filter(glob("$folder/*md"), "is_file");
    foreach ($files as $file) {
      $this->files[] = $file;
    }
  }

  public function getPages(int $page, int $limit)
  {
    $content = $this->getContents();
    $count = ceil(count($content) / $limit);

    $folder = [];
    $range = $page * $limit - $limit;
    for ($i = 0; $i <= $limit; $i++) {
      try {
        array_push($folder, $content[$i + $range]);
      } catch (Exception $error) {
        //echo $error;
      }
    }

    return [
      "pages" => $folder,
      "total" => $count,
    ];
  }
  public function getContents()
  {
    $parser = new Parser();
    $contents = [];
    foreach ($this->files as $file) {
      $doc = $parser->parse(file_get_contents($file), false);

      $meta = $doc->getYAML();
      //$date = getdate($meta["created"]);
      $newDate = date("Y M D d", $meta["created"]);
      $page = [
        "id" => $meta["id"],
        "uuid" => $meta["uuid"],
        "title" => $meta["title"],
        "feature" => $meta["feature"],
        "path" => $meta["path"],
        "layout" => $meta["layout"],
        "tags" => $meta["tags"],
        "author" => $meta["author"],
        "prettyDate" => $newDate,
        "created" => $meta["created"],
        "deleted" => $meta["deleted"],
        "menu" => $meta["menu"],
        "featured" => $meta["featured"],
        "published" => $meta["published"],
        "slug" => $meta["slug"],
        "filePath" => $file,
        "content" => $doc->getContent(),
      ];

      //checks for duplicates
      $uuid = $meta["uuid"];
      $found = current(
        array_filter($contents, function ($item) use ($uuid) {
          return isset($item["uuid"]) && $uuid == $item["uuid"];
        })
      );

      // if uuid is not present, add it
      if (!$found) {
        array_push($contents, $page);
      }
    }
    $contents = orderBy($contents, ["id"], ["desc"]);
    return $contents;
  }
}