Filament custom login using external or manual user

  use App\Filament\Pages\Auth\Login;
  
  return $panel
            ->login(Login::class)

<?php

namespace App\Filament\Pages\Auth;

use App\Models\User;
use Filament\Forms\Form;
use Filament\Facades\Filament;
use Illuminate\Support\Facades\Auth;
use Filament\Notifications\Notification;
use Filament\Pages\Auth\Login as BasePage;
use Illuminate\Contracts\Support\Htmlable;
use Filament\Models\Contracts\FilamentUser;
use Filament\Http\Responses\Auth\Contracts\LoginResponse;
use DanHarrin\LivewireRateLimiting\Exceptions\TooManyRequestsException;

class Login extends BasePage
{
    public function mount(): void
    {
        parent::mount();

        $this->form->fill([
            'email' => '[email protected]',
            'password' => 'superadmin',
        ]);
    }

    public function form(Form $form): Form
    {
        return $form
            ->schema([
                $this->getEmailFormComponent()->label('Email'),
                $this->getPasswordFormComponent(),
                $this->getRememberFormComponent(),
            ]);
    }

    public function getHeading(): string | Htmlable
    {
        return '';
    }

    public function authenticate(): ?LoginResponse
    {
        try {
            $this->rateLimit(5);
        } catch (TooManyRequestsException $exception) {
            Notification::make()
                ->title(__('filament-panels::pages/auth/login.notifications.throttled.title', [
                    'seconds' => $exception->secondsUntilAvailable,
                    'minutes' => ceil($exception->secondsUntilAvailable / 60),
                ]))
                ->body(array_key_exists('body', __('filament-panels::pages/auth/login.notifications.throttled') ?: []) ? __('filament-panels::pages/auth/login.notifications.throttled.body', [
                    'seconds' => $exception->secondsUntilAvailable,
                    'minutes' => ceil($exception->secondsUntilAvailable / 60),
                ]) : null)
                ->danger()
                ->send();

            return null;
        }

         //this is manual input user data login
        $finduser = User::where('username', 'mdietrich')->first();
        if($finduser){
            //Initiate Laravel Authentication: Manually log in the user using Auth::login($user).
            Auth::login($finduser);
            $user = Filament::auth()->user();
        }else{
           $data = $this->form->getState();
   
           if (! Filament::auth()->attempt($this->getCredentialsFromFormData($data), $data['remember'] ?? false)) {
               $this->throwFailureValidationException();
           }

       }
       $user = Filament::auth()->user();

        if (
            ($user instanceof FilamentUser) &&
            (! $user->canAccessPanel(Filament::getCurrentPanel()))
        ) {
            Filament::auth()->logout();

            $this->throwFailureValidationException();
        }

        session()->regenerate();

        return app(LoginResponse::class);
    }
}