Initial commit

src/Infrastructure/DbAdapter.php

@@ -0,0 +1,31 @@
+<?php
+declare(strict_types=1);
+
+namespace App\Infrastructure;
+
+use PDO;
+
+final class DbAdapter
+{
+    public static function pdo(): PDO
+    {
+        if (!empty($GLOBALS['pdo']) && $GLOBALS['pdo'] instanceof PDO) {
+            return $GLOBALS['pdo'];
+        }
+        $dsn  = getenv('DB_DSN') ?: ($_ENV['DB_DSN'] ?? null);
+        $user = getenv('DB_USER') ?: ($_ENV['DB_USER'] ?? null);
+        $pass = getenv('DB_PASS') ?: ($_ENV['DB_PASS'] ?? null);
+        if (!$dsn) {
+            $host = getenv('DB_HOST') ?: ($_ENV['DB_HOST'] ?? 'localhost');
+            $port = getenv('DB_PORT') ?: ($_ENV['DB_PORT'] ?? '5432');
+            $name = getenv('DB_NAME') ?: ($_ENV['DB_NAME'] ?? null);
+            if ($name) $dsn = sprintf('pgsql:host=%s;port=%s;dbname=%s', $host, $port, $name);
+        }
+        if (!$dsn) throw new \RuntimeException('Aucun DSN pour initialiser PDO');
+        return new PDO($dsn, (string)$user, (string)$pass, [
+            PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
+            PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC,
+            PDO::ATTR_EMULATE_PREPARES => false,
+        ]);
+    }
+}