<?php

return function ($props) {
    $section = function ($defaults, $props) {
        if ($props === true) {
            $props = [];
        }

        if (is_string($props) === true) {
            $props = [
                'headline' => $props
            ];
        }

        return array_replace_recursive($defaults, $props);
    };

    if (empty($props['sidebar']) === false) {
        $sidebar = $props['sidebar'];
    } else {
        $sidebar = [];

        $pages = $props['pages'] ?? [];
        $files = $props['files'] ?? [];

        if ($pages !== false) {
            $sidebar['pages'] = $section([
                'headline' => t('pages'),
                'type'     => 'pages',
                'status'   => 'all',
                'layout'   => 'list',
            ], $pages);
        }

        if ($files !== false) {
            $sidebar['files'] = $section([
                'headline' => t('files'),
                'type'     => 'files',
                'layout'   => 'list'
            ], $files);
        }
    }

    if (empty($sidebar) === true) {
        $props['fields'] = $props['fields'] ?? [];

        unset(
            $props['files'],
            $props['pages']
        );
    } else {
        $props['columns'] = [
            [
                'width'  => '2/3',
                'fields' => $props['fields'] ?? []
            ],
            [
                'width' => '1/3',
                'sections' => $sidebar
            ],
        ];

        unset(
            $props['fields'],
            $props['files'],
            $props['pages'],
            $props['sidebar']
        );
    }

    return $props;
};