first commit

app/Core/Auth.php

@@ -0,0 +1,29 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Core;
+
+class Auth
+{
+    public static function check(): bool
+    {
+        return !empty($_SESSION['user']);
+    }
+
+    public static function user(): ?array
+    {
+        return $_SESSION['user'] ?? null;
+    }
+
+    public static function login(array $user): void
+    {
+        $_SESSION['user'] = $user;
+    }
+
+    public static function logout(): void
+    {
+        unset($_SESSION['user']);
+        session_destroy();
+    }
+}

app/Core/DB.php

@@ -0,0 +1,37 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Core;
+
+use PDO;
+use PDOException;
+
+class DB
+{
+    private static ?PDO $pdo = null;
+
+    public static function connection(): PDO
+    {
+        if (self::$pdo !== null) {
+            return self::$pdo;
+        }
+
+        $config = require __DIR__ . '/../../config/db.php';
+
+        $dsn = sprintf(
+            'mysql:host=%s;port=%d;dbname=%s;charset=%s',
+            $config['host'],
+            $config['port'],
+            $config['database'],
+            $config['charset']
+        );
+
+        self::$pdo = new PDO($dsn, $config['username'], $config['password'], [
+            PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
+            PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC,
+        ]);
+
+        return self::$pdo;
+    }
+}

app/Core/Router.php

@@ -0,0 +1,45 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Core;
+
+class Router
+{
+    private array $routes = [
+        'GET' => [],
+        'POST' => [],
+    ];
+
+    public function get(string $path, array $handler): void
+    {
+        $this->routes['GET'][] = [$path, $handler];
+    }
+
+    public function post(string $path, array $handler): void
+    {
+        $this->routes['POST'][] = [$path, $handler];
+    }
+
+    public function dispatch(string $method, string $uri): void
+    {
+        $path = parse_url($uri, PHP_URL_PATH);
+
+        foreach ($this->routes[$method] ?? [] as [$route, $handler]) {
+            $pattern = preg_replace('/\{[a-zA-Z_][a-zA-Z0-9_]*\}/', '([^/]+)', $route);
+            $pattern = '#^' . $pattern . '$#';
+
+            if (preg_match($pattern, $path, $matches)) {
+                array_shift($matches);
+
+                [$class, $action] = $handler;
+                $controller = new $class();
+                $controller->$action(...$matches);
+                return;
+            }
+        }
+
+        http_response_code(404);
+        echo '404 Not Found';
+    }
+}

app/Core/View.php

@@ -0,0 +1,27 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Core;
+
+class View
+{
+    public static function render(string $viewName, array $data = [], ?string $layout = 'app'): void
+    {
+        extract($data, EXTR_SKIP);
+
+        $viewFile = __DIR__ . '/../Views/' . $viewName . '.php';
+
+        ob_start();
+        require $viewFile;
+        $content = ob_get_clean();
+
+        if ($layout === null) {
+            echo $content;
+            return;
+        }
+
+        $layoutFile = __DIR__ . '/../Views/layouts/' . $layout . '.php';
+        require $layoutFile;
+    }
+}