From d4902608071366ffb23ad0a061b00bec19b9c7b7 Mon Sep 17 00:00:00 2001
From: Yisroel Baum <yisroel.d.baum@gmail.com>
Date: Sat, 16 May 2026 21:30:51 +0300
Subject: [PATCH] implement create session use case

Green phase: CreateSession generates a token, creates a session with 7-day expiry, and persists it via SessionRepository.
---
 .../UseCases/CreateSession/CreateSession.php  | 34 +++++++++++++++++++
 1 file changed, 34 insertions(+)
 create mode 100644 backend/app/Auth/UseCases/CreateSession/CreateSession.php

diff --git a/backend/app/Auth/UseCases/CreateSession/CreateSession.php b/backend/app/Auth/UseCases/CreateSession/CreateSession.php
new file mode 100644
index 0000000..db6403f
--- /dev/null
+++ b/backend/app/Auth/UseCases/CreateSession/CreateSession.php
@@ -0,0 +1,34 @@
+<?php
+
+namespace App\Auth\UseCases\CreateSession;
+
+use App\Auth\Clock;
+use App\Auth\CreateSessionDto;
+use App\Auth\Session;
+use App\Auth\SessionRepository;
+use App\Auth\TokenGenerator;
+use App\User\User;
+
+class CreateSession
+{
+    private const SESSION_LIFETIME = '+7 days';
+
+    public function __construct(
+        private SessionRepository $sessionRepo,
+        private TokenGenerator $tokenGenerator,
+        private Clock $clock,
+    ) {}
+
+    public function execute(User $user): Session
+    {
+        $now = $this->clock->now();
+        $expiresAt = $now->modify(self::SESSION_LIFETIME);
+
+        return $this->sessionRepo->create(new CreateSessionDto(
+            token: $this->tokenGenerator->generate(),
+            user: $user,
+            createdAt: $now,
+            expiresAt: $expiresAt,
+        ));
+    }
+}