<?php

namespace App\Http\Controllers\Auth;

use App\Http\Controllers\Controller;
use App\Models\User;
use Auth;
use Socialite;

class AuthController extends Controller
{
    /**
     * Redirect the user to the GitHub authentication page.
     *
     * @return Response
     */
    public function redirectToProvider($provider)
    {
        return Socialite::driver($provider)->redirect();
    }

    /**
     * Obtain the user information from provider.
     *
     * @return Response
     */
    public function handleProviderCallback($provider)
    {
        try {
            $user = Socialite::driver($provider)->stateless()->user();
        } catch (Exception $e) {
            return redirect()->route('login');
        }

        $authUser = $this->findOrCreateUser($user, $provider);

        Auth::login($authUser, true);

        return redirect()->route('home')->withSuccess(__('auth.logged_in_provider', ['provider' => $provider]));
    }

    /**
     * Return user if exists; create and return if doesn't
     *
     * @param $user
     * @return User
     */
    private function findOrCreateUser($user, $provider)
    {
        $authUser = User::where('provider_id', $user->id)->first();

        if ($authUser) {
            return $authUser;
        }

        return User::create([
            'name' => $user->name ?? $user->email,
            'email' => $user->email,
            'provider' => $provider,
            'provider_id' => $user->id
        ]);
    }
}

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