scrum-poker-internal/app/Models/Room.php

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Attributes\Fillable;
use Illuminate\Database\Eloquent\Concerns\HasUuids;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\HasMany;
use Override;

class Room extends Model
{
    use HasUuids;

    protected $fillable = [
        'title',
        'current_round',
        'deck_config',
        'revealed_at',
        'state_version',
    ];

    protected function casts() :array
    {
        return [
            'current_round' => 'integer',
            'state_version' => 'integer',
            'revealed_at' => 'immutable_datetime',
            'deck_config' => 'array',
        ];
    }

    protected static function booted()
    {
        static::creating(function (Room $room) {
            $room->join_code ??= static::generateJoinCode();
        });
    }

    private static function generateJoinCode(): string 
    {
        $alphabet = 'ABCDEFGHJKLMNPQRSTUVWXYZ23456789';

        do {
            $code = '';

            for($i = 0; $i < 6; $i++) {
                $code .= $alphabet[random_int(0,strlen($alphabet)-1)];
            }
        } while (static::where('join_code', $code)->exists());

        return $code;

    }


    public function players(): HasMany
    {
        return $this->hasMany(Player::class);

    }

    public function vote(): HasMany
    {
        return $this->hasMany(Vote::class);
    }
}