<?php

namespace App\Data;

use App\Models\Category;
use Illuminate\Database\Eloquent\Relations\HasMany;

class LandingPageLoader
{
    public function loadData(): array
    {
        return [
            'categories' => $this->loadLandingPageData(),
            'loader' => 'landingPage',
        ];
    }

    protected function loadLandingPageData()
    {
        $categories = Category::query()
            ->rootOnly()
            ->orderByPosition()
            ->filterByVisibleToRole()
            ->limit(10)
            ->withCount('sections')
            ->with([
                'sections' => function (HasMany $query) {
                    $query
                        ->withCount('articles')
                        ->filterByVisibleToRole()
                        ->with([
                            'articles' => function ($query) {
                                $query->filterByVisibleToRole();
                            },
                        ]);
                },
            ])
            ->get();

        $categoryLimit = settings('landing.children_per_category', 6);
        $articleLimit = settings('landing.articles_per_category', 5);

        $categories->each(function (Category $category) use (
            $categoryLimit,
            $articleLimit,
        ) {
            // limit child category and child category article count
            $category->setRelation(
                'sections',
                $category->sections->take($categoryLimit),
            );
            $category->sections->each(function (Category $child) use (
                $articleLimit,
            ) {
                $child->setRelation(
                    'articles',
                    $child->articles->take($articleLimit),
                );
            });
        });

        return $categories;
    }