Laravel Socialite login sample

SocialAccountService.php

<?php

namespace App;

use Laravel\Socialite\Contracts\User as ProviderUser;

class SocialAccountsService
{

    public function findOrCreate(ProviderUser $providerUser, $provider)
    {
        $account = LinkedSocialAccount::whereProviderName($provider)
                   ->whereProviderId($providerUser->getId())
                   ->first();

        if ($account) {

            return $account->user;

        } else {

            if ($providerUser->getEmail()) {

                $user = User::whereEmail($providerUser->getEmail())->first();

                if (! $user) {
                    $user = User::create([  
                        'email' => $providerUser->getEmail(),
                        'name'  => $providerUser->getName(),
                    ]);
                }

                $user->accounts()->create([
                    'provider_id'   => $providerUser->getId(),
                    'provider_name' => $provider,
                ]);

                return $user;

            } else {

                // emailがなかったら
                $user = User::create([  
                    'email' => $providerUser->getEmail(),
                    'name'  => $providerUser->getName(),
                ]);

                $user->accounts()->create([
                    'provider_id'   => $providerUser->getId(),
                    'provider_name' => $provider,
                ]);

                return $user;

            }

        }

    }
}