first commit

app/models/Database.php

@@ -0,0 +1,22 @@
+<?php
+
+class Database
+{
+    private static ?PDO $instance = null;
+    private static string $dbPath = __DIR__ . '/../../database/app.db';
+
+    public static function getInstance(): PDO
+    {
+        if (self::$instance === null) {
+            self::$instance = new PDO('sqlite:' . self::$dbPath);
+            self::$instance->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
+            self::$instance->setAttribute(PDO::ATTR_DEFAULT_FETCH_MODE, PDO::FETCH_ASSOC);
+        }
+        return self::$instance;
+    }
+
+    public static function getDbPath(): string
+    {
+        return self::$dbPath;
+    }
+}