50 lines
1.2 KiB
PHP
50 lines
1.2 KiB
PHP
<?php
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declare(strict_types=1);
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namespace App\Observers;
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use App\Models\ArtworkReaction;
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use App\Services\UserStatsService;
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use Illuminate\Support\Facades\DB;
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/**
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* Updates the artwork creator's reactions_received_count when
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* a reaction is added or removed.
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*/
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class ArtworkReactionObserver
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{
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public function __construct(
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private readonly UserStatsService $userStats,
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) {}
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public function created(ArtworkReaction $reaction): void
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{
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$creatorId = $this->creatorId($reaction->artwork_id);
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if ($creatorId) {
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$this->userStats->incrementReactionsReceived($creatorId);
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}
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// The reactor is "active"
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$this->userStats->ensureRow($reaction->user_id);
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$this->userStats->setLastActiveAt($reaction->user_id);
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}
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public function deleted(ArtworkReaction $reaction): void
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{
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$creatorId = $this->creatorId($reaction->artwork_id);
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if ($creatorId) {
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$this->userStats->decrementReactionsReceived($creatorId);
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}
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}
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private function creatorId(int $artworkId): ?int
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{
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$id = DB::table('artworks')
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->where('id', $artworkId)
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->value('user_id');
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return $id !== null ? (int) $id : null;
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}
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}
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