<?php

namespace App\Services\Rooms;

use App\Enums\RoomStateChange;
use App\Events\RoomStateChanged;
use App\Models\Room;
use App\Models\User;
use Illuminate\Support\Facades\DB;

class RoomSettingsService
{
    public function __construct(
        private readonly RoomRealtimeStateService $realtimeState,
    ) {}

    /** @param array{allow_participants_to_manage_rounds: bool, is_persistent: bool} $settings */
    public function update(Room $room, User $user, array $settings): void
    {
        $stateVersion = DB::transaction(function () use ($room, $user, $settings): ?int {
            $lockedRoom = Room::query()
                ->lockForUpdate()
                ->findOrFail($room->id);

            abort_unless($lockedRoom->owner_id === $user->id, 403);

            $lockedRoom->fill($settings);

            if (! $lockedRoom->isDirty()) {
                return null;
            }

            $lockedRoom->state_version++;
            $lockedRoom->save();

            return $lockedRoom->state_version;
        });

        if ($stateVersion === null) {
            return;
        }

        RoomStateChanged::dispatch(
            $room->id,
            $stateVersion,
            RoomStateChange::RoomSettingsUpdated,
            $this->realtimeState->for($room),
        );
    }
}