<?php

namespace App\Traits;

use Illuminate\Support\Str;

trait HasReferralCode
{
    public static function bootHasReferralCode(): void
    {
        static::creating(function ($model) {
            if (!$model->referral_code) {
                $model->referral_code = static::generateReferralCode();
            }
        });
    }

    public static function generateReferralCode(): string
    {
        do {
            $code = strtoupper(Str::random(8));
        } while (static::where('referral_code', $code)->exists());

        return $code;
    }
}