<?php

namespace App\Controller;

use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\Routing\Annotation\Route;

class ProductController extends AbstractController
{
    #[Route('/product/create', name: 'app_product_create')]
    public function create(): Response
    {
        // Your logic to create a product

        // Add a success notification
        flash()->success('Product created successfully!');

        return $this->redirectToRoute('app_product_list');
    }
}

// Success message
flash()->success('Your changes have been saved!');

// Error message
flash()->error('Something went wrong!');

// Warning message
flash()->warning('Please review your data before proceeding.');

// Info message
flash()->info('The system will be down for maintenance tonight.');

flash()->success('Your profile has been updated successfully.', 'Profile Updated');

flash()
    ->option('position', 'top-center')  // Position on the screen
    ->option('timeout', 5000)           // How long to display (milliseconds)
    ->option('rtl', true)               // Right-to-left support
    ->success('Your changes have been saved!');

<?php

namespace App\Controller;

use App\Entity\Article;
use App\Form\ArticleType;
use App\Repository\ArticleRepository;
use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\Routing\Annotation\Route;

class ArticleController extends AbstractController
{
    #[Route('/article/new', name: 'app_article_new', methods: ['GET', 'POST'])]
    public function new(Request $request, ArticleRepository $articleRepository): Response
    {
        $article = new Article();
        $form = $this->createForm(ArticleType::class, $article);
        $form->handleRequest($request);

        if ($form->isSubmitted() && $form->isValid()) {
            $articleRepository->save($article, true);
            flash()->success('Article created successfully!');

            return $this->redirectToRoute('app_article_index', [], Response::HTTP_SEE_OTHER);
        }

        return $this->render('article/new.html.twig', [
            'article' => $article,
            'form' => $form,
        ]);
    }

    #[Route('/article/{id}/edit', name: 'app_article_edit', methods: ['GET', 'POST'])]
    public function edit(Request $request, Article $article, ArticleRepository $articleRepository): Response
    {
        $form = $this->createForm(ArticleType::class, $article);
        $form->handleRequest($request);

        if ($form->isSubmitted() && $form->isValid()) {
            $articleRepository->save($article, true);
            flash()->success('Article updated successfully!');

            return $this->redirectToRoute('app_article_index', [], Response::HTTP_SEE_OTHER);
        }

        return $this->render('article/edit.html.twig', [
            'article' => $article,
            'form' => $form,
        ]);
    }

    #[Route('/article/{id}', name: 'app_article_delete', methods: ['POST'])]
    public function delete(Request $request, Article $article, ArticleRepository $articleRepository): Response
    {
        if ($this->isCsrfTokenValid('delete'.$article->getId(), $request->request->get('_token'))) {
            $articleRepository->remove($article, true);
            flash()->success('Article deleted successfully!');
        } else {
            flash()->error('Invalid token. Please try again.');
        }

        return $this->redirectToRoute('app_article_index', [], Response::HTTP_SEE_OTHER);
    }
}

<?php

namespace App\Controller;

use App\Entity\User;
use App\Form\RegistrationType;
use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\Routing\Annotation\Route;

class RegistrationController extends AbstractController
{
    #[Route('/register', name: 'app_register')]
    public function register(Request $request): Response
    {
        $user = new User();
        $form = $this->createForm(RegistrationType::class, $user);
        $form->handleRequest($request);

        if ($form->isSubmitted() && $form->isValid()) {
            // Save user logic here
            flash()->success('Registration successful! Please log in.');

            return $this->redirectToRoute('app_login');
        }

        if ($form->isSubmitted() && !$form->isValid()) {
            flash()->error('Please correct the errors in the form.');
        }

        return $this->render('registration/register.html.twig', [
            'form' => $form,
        ]);
    }
}

<?php

namespace App\Controller;

use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
use Symfony\Component\HttpFoundation\JsonResponse;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\Routing\Annotation\Route;

class ApiController extends AbstractController
{
    #[Route('/api/update', name: 'api_update', methods: ['POST'])]
    public function update(Request $request): JsonResponse
    {
        // Process the request
        $data = json_decode($request->getContent(), true);

        // Your business logic here

        // Flash messages will be rendered in the response
        flash()->success('Data updated successfully!');

        return $this->json(['status' => 'success']);
    }
}

# config/packages/flasher.yaml

flasher:
    main:
        filter:
            # Filter flash messages by priority or criteria
            priority: ~

        # Limit the number of flash messages displayed
        limit: ~

        # Map Flash messages to specific criteria
        map: []

        # Automatically inject Flasher scripts into your HTML
        inject_assets: true

        # Use bulma CSS framework
        use_bulma: false

        # Use tailwind CSS framework
        use_tailwind: false

        # Use bootstrap CSS framework
        use_bootstrap: false

        # Default flash notification options
        options:
            # Animation: fade, slide, zoom, flip, bounce, etc.
            animation: true

            # Close button on notifications
            close_button: false

            # Display progress bar
            progress_bar: true

            # Notification position: top-right, top-left, bottom-right, bottom-left, top-center, bottom-center
            position: top-right

            # Right-to-left support
            rtl: false

            # Time before notification auto-hides (in milliseconds)
            timeout: 5000

        # Translate flash messages
        translate: true

        # Flash messages translation domain
        translation_domain: flasher

        # Default rendering context
        default_context: ~

        # Available rendering contexts
        contexts: []

# config/packages/flasher.yaml

flasher:
    translate: true
    translation_domain: flasher

# translations/flasher.en.yaml
success:
    resource_created: '{resource} created successfully.'
    resource_updated: '{resource} updated successfully.'
    resource_deleted: '{resource} deleted successfully.'

error:
    general: 'An error occurred. Please try again.'
    not_found: '{resource} not found.'
    unauthorized: 'You are not authorized to perform this action.'

info:
    welcome: 'Welcome back!'
    maintenance: 'The system will be down for maintenance tonight.'

warning:
    review_data: 'Please review your data before proceeding.'
    unsaved_changes: 'You have unsaved changes. Are you sure you want to leave?'

use Symfony\Component\HttpFoundation\Response;

class ProductController extends AbstractController
{
    public function create(): Response
    {
        // Your logic to create a product

        // Use translation key
        flash('resource_created', ['resource' => 'Product'])->success();

        return $this->redirectToRoute('app_product_list');
    }
}