einundzwanzig-portal/app/Http/Livewire/Meetup/LandingPageEvent.php

<?php

namespace App\Http\Livewire\Meetup;

use App\Models\Country;
use App\Models\Meetup;
use App\Models\MeetupEvent;
use App\Models\User;
use App\Rules\UniqueAttendeeName;
use Livewire\Component;
use RalphJSmit\Laravel\SEO\Support\SEOData;

class LandingPageEvent extends Component
{
    public MeetupEvent $meetupEvent;

    public Country $country;

    public ?Meetup $meetup = null;

    public bool $willShowUp = false;

    public bool $perhapsShowUp = false;

    public string $name = '';

    public array $attendees = [];
    public array $mightAttendees = [];

    public function rules()
    {
        return [
            'name' => [
                'required',
                new UniqueAttendeeName($this->meetupEvent),
            ],
        ];
    }

    public function mount()
    {
        $this->meetupEvent->load('meetup.users');
        $this->meetup = $this->meetupEvent->meetup;
        $this->name = auth()->check() ? auth()->user()->name : '';
        $this->checkShowUp();
    }

    public function checkShowUp()
    {
        $attendees = collect($this->meetupEvent->attendees);
        $mightAttendees = collect($this->meetupEvent->might_attendees);

        if (auth()->check() && $attendees->contains(fn($value) => str($value)->contains('id_'.auth()->id()))) {
            $this->name = str($attendees->filter(fn($value) => str($value)->contains('id_'.auth()->id()))
                                        ->first())
                ->after('|')
                ->toString();
            $this->willShowUp = true;
        }

        if (!auth()->check() && $attendees->contains(fn($value) => str($value)->contains('anon_'.session()->getId()))) {
            $this->name = str($attendees->filter(fn($value) => str($value)->contains('anon_'.session()->getId()))
                                        ->first())
                ->after('|')
                ->toString();
            $this->willShowUp = true;
        }

        if (auth()->check() && $mightAttendees->contains(fn($value) => str($value)->contains('id_'.auth()->id()))) {
            $this->name = str($mightAttendees->filter(fn($value) => str($value)->contains('id_'.auth()->id()))
                                             ->first())
                ->after('|')
                ->toString();
            $this->perhapsShowUp = true;
        }

        if (!auth()->check() && $mightAttendees->contains(fn($value
            ) => str($value)->contains('anon_'.session()->getId()))) {
            $this->name = str($mightAttendees->filter(fn($value) => str($value)->contains('anon_'.session()->getId()))
                                             ->first())
                ->after('|')
                ->toString();
            $this->perhapsShowUp = true;
        }

        $this->attendees = $this->mapAttendees($attendees);
        $this->mightAttendees = $this->mapAttendees($mightAttendees);
    }

    private function mapAttendees($collection) {
        return $collection->map(function ($value) {
            if (str($value)->contains('anon_')) {
                $id = -1;
            } else {
                $id = str($value)
                    ->before('|')
                    ->after('id_')
                    ->toString();
            }

            return [
                'id'   => $id,
                'user' => $id > 0 ? User::withoutEvents(static fn() => User::query()
                                                                           ->select([
                                                                               'id',
                                                                               'name',
                                                                               'profile_photo_path',
                                                                           ])
                                                                           ->find($id)
                                                                           ?->append('profile_photo_url')
                                                                           ->toArray())
                    : null,
                'name' => str($value)
                    ->after('|')
                    ->toString(),
            ];
        })
                          ->toArray();
    }

    public function cannotCome()
    {
        $attendees = collect($this->meetupEvent->attendees);
        $mightAttendees = collect($this->meetupEvent->might_attendees);

        if (auth()->check() && $attendees->contains(fn($value) => str($value)->contains('id_'.auth()->id()))) {
            $attendees = $attendees->filter(fn($value) => !str($value)->contains('id_'.auth()->id()));
            $this->willShowUp = false;
        }

        if (!auth()->check() && $attendees->contains(fn($value) => str($value)->contains('anon_'.session()->getId()))) {
            $attendees = $attendees->filter(fn($value) => !str($value)->contains('anon_'.session()->getId()));
            $this->willShowUp = false;
        }

        if (auth()->check() && $mightAttendees->contains(fn($value) => str($value)->contains('id_'.auth()->id()))) {
            $mightAttendees = $mightAttendees->filter(fn($value) => !str($value)->contains('id_'.auth()->id()));
            $this->perhapsShowUp = false;
        }

        if (!auth()->check() && $mightAttendees->contains(fn($value
            ) => str($value)->contains('anon_'.session()->getId()))) {
            $mightAttendees = $mightAttendees->filter(fn($value) => !str($value)->contains('anon_'.session()->getId()));
            $this->perhapsShowUp = false;
        }

        $this->meetupEvent->update([
            'attendees'       => $attendees->toArray(),
            'might_attendees' => $mightAttendees->toArray(),
        ]);

        $this->checkShowUp();
    }

    public function attend()
    {
        $this->validate();
        $attendees = collect($this->meetupEvent->attendees);

        if (auth()->check() && !$attendees->contains('id_'.auth()->id().'|'.$this->name)) {
            $attendees->push('id_'.auth()->id().'|'.$this->name);
            $this->willShowUp = true;
        }

        if (!auth()->check() && !$attendees->contains('anon_'.session()->getId().'|'.$this->name)) {
            $attendees->push('anon_'.session()->getId().'|'.$this->name);
            $this->willShowUp = true;
        }

        $this->meetupEvent->update([
            'attendees' => $attendees->toArray(),
        ]);

        $this->checkShowUp();
    }

    public function mightAttend()
    {
        $this->validate();
        $mightAttendees = collect($this->meetupEvent->might_attendees);

        if (auth()->check() && !$mightAttendees->contains('id_'.auth()->id().'|'.$this->name)) {
            $mightAttendees->push('id_'.auth()->id().'|'.$this->name);
            $this->perhapsShowUp = true;
        }

        if (!auth()->check() && !$mightAttendees->contains('anon_'.session()->getId().'|'.$this->name)) {
            $mightAttendees->push('anon_'.session()->getId().'|'.$this->name);
            $this->perhapsShowUp = true;
        }

        $this->meetupEvent->update([
            'might_attendees' => $mightAttendees->toArray(),
        ]);

        $this->checkShowUp();
    }

    public function render()
    {
        return view('livewire.meetup.landing-page-event')->layout('layouts.guest', [
            'SEOData' => new SEOData(
                title: $this->meetupEvent->start->asDateTime().' - '.$this->meetup->name,
                description: __('Here you can confirm your participation and find more information about the Meetup.').' - '.$this->meetupEvent->description,
                image: $this->meetup->getFirstMediaUrl('logo'),
            ),
        ]);
    }
}