feat: add application kernel and public entry point

public/index.php

@@ -0,0 +1,9 @@
+<?php
+
+use Bazaar\Core\App;
+
+require dirname(__DIR__) . '/vendor/autoload.php';
+
+$app = new App();
+$app->boot();
+$app->run();

src/Core/App.php

@@ -0,0 +1,181 @@
+<?php
+
+namespace Bazaar\Core;
+
+use Bazaar\Mail\LogMailer;
+use Bazaar\Repositories\AttributeRepository;
+use Bazaar\Repositories\CategoryRepository;
+use Bazaar\Repositories\CouponRepository;
+use Bazaar\Repositories\OrderRepository;
+use Bazaar\Repositories\ProductRepository;
+use Bazaar\Repositories\ReviewRepository;
+use Bazaar\Repositories\UserRepository;
+use Bazaar\Repositories\VariantRepository;
+use Bazaar\Repositories\WishlistRepository;
+use Bazaar\Routes;
+use Bazaar\Services\Analytics;
+use Bazaar\Services\Auth;
+use Bazaar\Services\Cart;
+use Bazaar\Services\CouponService;
+use Bazaar\Services\OrderService;
+use Bazaar\Services\ProductSearch;
+use Bazaar\Services\ReviewService;
+use Bazaar\Support\Translator;
+
+final class App
+{
+    private Router $router;
+    private Context $context;
+
+    public function boot(): void
+    {
+        Config::load(basePath('.env'));
+
+        $session = new Session();
+        $session->start();
+
+        $database = Database::instance();
+        $users = new UserRepository($database);
+        $categories = new CategoryRepository($database);
+        $products = new ProductRepository($database);
+        $orders = new OrderRepository($database);
+        $attributes = new AttributeRepository($database);
+        $variants = new VariantRepository($database);
+        $coupons = new CouponRepository($database);
+        $reviews = new ReviewRepository($database);
+        $wishlist = new WishlistRepository($database);
+
+        $auth = new Auth($session, $users);
+        $cart = new Cart($session, $products, $variants);
+        $mailer = new LogMailer(basePath('storage/logs/mail.log'));
+        $orderService = new OrderService($database, $orders, $products, $variants, $coupons, $mailer);
+        $couponService = new CouponService($coupons);
+        $reviewService = new ReviewService($database, $reviews);
+        $productSearch = new ProductSearch($database, $attributes, $variants, $reviews, $categories);
+        $analytics = new Analytics($database);
+        $csrf = new Csrf($session);
+        $view = new View(basePath('views'));
+
+        $request = Request::capture();
+        $translator = new Translator(basePath('resources/lang'), $this->resolveLocale($request, $session));
+
+        $this->context = new Context(
+            $request,
+            $session,
+            $csrf,
+            $view,
+            $auth,
+            $cart,
+            $orderService,
+            $users,
+            $categories,
+            $products,
+            $orders,
+            $attributes,
+            $variants,
+            $coupons,
+            $reviews,
+            $wishlist,
+            $couponService,
+            $reviewService,
+            $productSearch,
+            $analytics,
+            $translator
+        );
+
+        $view->share('view', $view);
+        $view->share('currentUser', $auth->user());
+        $view->share('isAdmin', $auth->isAdmin());
+        $view->share('isStaff', $auth->isStaff());
+        $view->share('can', fn (string $capability): bool => $auth->can($capability));
+        $view->share('csrfToken', $csrf->token());
+        $view->share('cartCount', $cart->count());
+        $view->share('wishlistCount', $auth->check() ? $wishlist->count((int) $auth->id()) : 0);
+        $view->share('navCategories', $categories->all());
+        $view->share('flashes', $session->pullFlash());
+        $view->share('appName', 'Bazaar');
+        $view->share('currency', (string) Config::get('CURRENCY', 'usd'));
+        $view->share('stripeConfigured', Config::stripeConfigured());
+        $view->share('locale', $translator->locale());
+        $view->share('supportedLocales', Translator::supported);
+        $view->share('t', fn (string $key, array $replacements = []): string => $translator->get($key, $replacements));
+        $view->share('couponCode', (string) $session->get('couponCode', ''));
+
+        $this->router = new Router();
+        Routes::define($this->router);
+    }
+
+    private function resolveLocale(Request $request, Session $session): string
+    {
+        $requested = (string) $request->query('lang', '');
+        if ($requested !== '' && Translator::isSupported($requested)) {
+            $session->put('locale', $requested);
+        }
+        $locale = (string) $session->get('locale', 'en');
+        return Translator::isSupported($locale) ? $locale : 'en';
+    }
+
+    public function run(): void
+    {
+        $this->dispatch()->send();
+    }
+
+    private function dispatch(): Response
+    {
+        $request = $this->context->request;
+        $match = $this->router->match($request);
+
+        if (!$match->found()) {
+            return $this->context->view->render('errors.404', [], 'layout', $match->status === 405 ? 405 : 404);
+        }
+
+        if ($request->isPost() && !in_array('webhook', $match->middleware, true)) {
+            if (!$this->context->csrf->verify((string) $request->input('csrfToken', ''))) {
+                return $this->context->view->render('errors.419', [], 'layout', 419);
+            }
+        }
+
+        $guard = $this->guard($match->middleware);
+        if ($guard !== null) {
+            return $guard;
+        }
+
+        [$class, $method] = $match->handler;
+        $controller = new $class($this->context);
+        return $controller->{$method}(...array_values($match->params));
+    }
+
+    private function guard(array $middleware): ?Response
+    {
+        $auth = $this->context->auth;
+
+        if (in_array('guest', $middleware, true) && $auth->check()) {
+            return Response::redirect('/');
+        }
+
+        if (in_array('auth', $middleware, true) && !$auth->check()) {
+            $this->context->session->flash('error', 'Please sign in to continue.');
+            return Response::redirect('/login');
+        }
+
+        if (in_array('staff', $middleware, true)) {
+            if (!$auth->check()) {
+                return Response::redirect('/login');
+            }
+            if (!$auth->isStaff()) {
+                return $this->context->view->render('errors.403', [], 'layout', 403);
+            }
+        }
+
+        if (in_array('admin', $middleware, true)) {
+            if (!$auth->check()) {
+                return Response::redirect('/login');
+            }
+            if (!$auth->isAdmin()) {
+                return $this->context->view->render('errors.403', [], 'layout', 403);
+            }
+        }
+
+        return null;
+    }
+}