From 03713164fa827e7b222a4ce8e933656496f11e5b Mon Sep 17 00:00:00 2001
From: Marcel Kapfer <opensource@mmk2410.org>
Date: Mon, 20 Sep 2021 12:54:57 +0200
Subject: [PATCH] Added ID manager

---
 src/IdManager.php       | 19 +++++++++++++++++++
 tests/IdManagerTest.php | 24 +++++++++++++++++++++++-
 2 files changed, 42 insertions(+), 1 deletion(-)

diff --git a/src/IdManager.php b/src/IdManager.php
index 2aed210..c860e38 100644
--- a/src/IdManager.php
+++ b/src/IdManager.php
@@ -4,5 +4,24 @@ namespace MMK2410\MyTodoList;
 
 class IdManager
 {
+    private static array $ids = array();
 
+    public static function generateID(string $classname): int
+    {
+        if (!array_key_exists($classname, self::$ids)) {
+            self::$ids[$classname] = 0;
+            return 0;
+        } else {
+            return ++self::$ids[$classname];
+        }
+    }
+
+    public static function getCurrentId(string $classname)
+    {
+        if (!array_key_exists($classname, self::$ids)) {
+            return 0;
+        } else {
+            return self::$ids[$classname];
+        }
+    }
 }
\ No newline at end of file
diff --git a/tests/IdManagerTest.php b/tests/IdManagerTest.php
index 5b75021..fae830d 100644
--- a/tests/IdManagerTest.php
+++ b/tests/IdManagerTest.php
@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 
 use MMK2410\MyTodoList\IdManager;
@@ -6,5 +6,27 @@ use PHPUnit\Framework\TestCase;
 
 class IdManagerTest extends TestCase
 {
+    public function testGenerateTwoIds(): void
+    {
+        $id1 = IdManager::generateID(IdManagerTest::class . "::testGenerateTwoIds");
+        $id2 = IdManager::generateID(IdManagerTest::class . "::testGenerateTwoIds");
+        self::assertNotEquals(
+            $id1,
+            $id2,
+            "ID 1 '$id1' and ID 2 '$id2' are equal, but the shouldn't."
+        );
+    }
 
+    public function testGetCurrentId(): void
+    {
+        for ($i = 0; $i < 3; $i++) {
+            IdManager::generateID(IdManagerTest::class . "::testGetCurrentId()");
+        }
+        $currentId = IdManager::getCurrentId(IdManagerTest::class . "::testGetCurrentId()");
+        self::assertEquals(
+            2,
+            $currentId,
+            "Expected current ID to be '2', but got '$currentId'"
+        );
+    }
 }