HT_DASHBOARD/app/Logics/LoginUser/LoginUserLogic.php

<?php

namespace App\Logics\LoginUser;

use App\Codes\UserRole;
use App\Exceptions\ParamException;
use App\Models\Htpms\MstCustomer;
use App\Models\HtpmsCustomer\Mst\Shop;
use App\Models\User;

class LoginUserLogic
{

    private User|null $user = null;

    public function createCustomerUser(User $user)
    {
        $this->user = $user;
        $user->role = UserRole::CUSTOMER;

        // チェック処理
        $this->checkEmailForCreate();
        $this->checkCustomerCode();

        $user->save();
    }

    public function createShopUser(Shop $shop, User $user)
    {
        $this->user = $user;
        $user->role = UserRole::SHOP;
        $user->shop_id = $shop->id;

        // チェック処理
        $this->checkEmailForCreate();
        $this->checkCustomerCode();

        $user->save();
    }


    private function checkEmailForCreate()
    {
        if (User::whereEmail($this->user)
            ->exists()
        ) {
            ParamException::throw(User::COL_NAME_EMAIL, trans('validation.unique'));
        }
    }

    private function checkCustomerCode()
    {
        $customer = MstCustomer::whereCustomerId($this->user->customer_code)
            ->first();

        if ($customer === null) {
            ParamException::throw(User::COL_NAME_CUSTOMER_CODE, trans('validation.exists'));
            return;
        }
        $this->user->customer_id = $customer->id;
    }
}