<?php

return function ($site) {
    $textsPage = $site->find('texts');
    $years = $textsPage->children();
    $texts = $years->children()->index();

    $categories = array();

    foreach ($textsPage->categories()->split() as $category) {
        $categories[$category] = array(
          'title' => $category,
          'texts' => array()
        );
    }

    foreach ($texts as $text) {
        try {
            $categories[$text->category()->value()]['texts'][] = $text;
        } catch (\Throwable $th) {
            throw new Exception(json_encode($th->getFile() . ' : ' . $th->getMessage()));
        }
    }

    return $categories;

};