einundzwanzig-portal/app/Http/Livewire/Library/LibraryTable.php

<?php

namespace App\Http\Livewire\Library;

use App\Models\Country;
use App\Models\Library;
use App\Models\LibraryItem;
use App\Models\Tag;
use Livewire\Component;
use RalphJSmit\Laravel\SEO\Support\SEOData;

class LibraryTable extends Component
{
    public Country $country;

    public array $filters = [];

    public bool $isLecturerPage = false;

    public string $search = '';

    public $perPage = 9;

    public $currentTab = '*';

    protected $queryString = [
        'currentTab' => ['except' => '*'],
        'filters' => ['except' => ''],
        'search' => ['except' => ''],
    ];

    public function loadMore()
    {
        $this->perPage += 9;
    }

    public function mount()
    {
        if (str(request()
            ->route()
            ->getName())->contains(['.lecturer'])) {
            $this->isLecturerPage = true;
        }
    }

    public function resetFiltering($isLecturerPage = false)
    {
        if ($isLecturerPage) {
            return to_route('library.table.lecturer', ['country' => $this->country, 'currentTab' => '*']);
        } else {
            return to_route('library.table.libraryItems', ['country' => $this->country, 'currentTab' => '*']);
        }
    }

    public function render()
    {
        $shouldBePublic = !$this->isLecturerPage;
        $libraries = \App\Models\Library::query()
            ->where('name', '!=', 'Bindle')
            ->whereNull('parent_id')
            ->where('is_public', $shouldBePublic)
            ->orderBy('name')
            ->get();
        $tabs = collect([
            [
                'name' => '*',
            ],
        ]);
        foreach ($libraries as $library) {
            $tabs->push([
                'name' => $library->name,
            ]);
        }

        if ($this->currentTab !== '*') {
            $parentLibrary = Library::query()
                ->where('name', $this->currentTab)
                ->first();
        }
        $searchTags = [];
        if ($this->search) {
            $searchTags = Tag::where('name', 'ilike', '%' . $this->search . '%')
                ->pluck('id')
                ->toArray();
        }

        return view('livewire.library.library-table', [
            'libraries' => $tabs,
            'libraryItems' => LibraryItem::query()
                ->with([
                    'lecturer',
                    'tags',
                ])
                ->where('type', '!=', 'bindle')
                ->when($this->search, fn($query) => $query
                    ->where('name', 'ilike', '%' . $this->search . '%')
                    ->orWhere(fn($query) => $query
                        ->when(count($searchTags) > 0 && count($this->filters) < 1,
                            fn($query) => $query->whereHas('tags',
                                fn($query) => $query->whereIn('tags.id', $searchTags)))
                    )
                )
                ->when($this->currentTab !== '*', fn($query) => $query
                    ->whereHas('libraries',
                        fn($query) => $query
                            ->where('libraries.name', $this->currentTab)
                    )
                )
                ->when(isset($this->filters['lecturer_id']),
                    fn($query) => $query->where('library_items.lecturer_id',
                        $this->filters['lecturer_id'])
                )
                ->when(isset($this->filters['tag']), fn($query) => $query->whereHas('tags',
                    fn($query) => $query->whereIn('tags.id', $this->filters['tag'])))
                ->when(isset($this->filters['language']),
                    fn($query) => $query->whereIn('language_code', $this->filters['language']))
                ->whereHas('libraries',
                    fn($query) => $query->where('libraries.is_public', $shouldBePublic))
                ->orderByDesc('library_items.created_at')
                ->paginate($this->perPage),
        ])->layout('layouts.app', [
            'SEOData' => new SEOData(
                title: __('Library'),
                description: __('Here you can find all content that are available in the library.'),
                image: asset('img/screenshot.png')
            ),
        ]);
    }
}