commit 4dc8435d6f856ddb996fe4b8a3ac88eb54b13025
Author: Nemanja Latkovic <nemanjalale99@gmail.com>
Date:   Sun Nov 16 14:29:01 2025 +0100

    lvl 1

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..b1a2308
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,3 @@
+__pycache__
+.venv
+database.db
\ No newline at end of file
diff --git a/database.py b/database.py
new file mode 100644
index 0000000..aa196a9
--- /dev/null
+++ b/database.py
@@ -0,0 +1,49 @@
+from models import User
+from passlib.context import CryptContext
+import sqlite3
+import jwt
+import datetime
+
+JWT_SECRET = "secret"
+
+connection = sqlite3.connect('database.db')
+connection.row_factory = sqlite3.Row
+cursor = connection.cursor()
+
+password_context = CryptContext(schemes=["sha256_crypt"], deprecated="auto")
+
+def init() -> None:
+    # create users table
+     cursor.execute('''
+            CREATE TABLE IF NOT EXISTS users (
+                id INTEGER PRIMARY KEY,
+                name TEXT NOT NULL UNIQUE,
+                password TEXT NOT NULL
+            )
+        ''')
+     
+def close() -> None:
+     connection.close()
+     
+
+def register(user: User) -> None:
+     password = password_context.hash(user.password)
+     cursor.execute("INSERT INTO users (name, password) VALUES (?, ?)", (user.name, password))
+     connection.commit()
+
+def login(user: User) -> str:
+     cursor.execute("SELECT id, name, password FROM users WHERE name = ?", (user.name,))
+     row = cursor.fetchone()
+     
+     if not row:
+          raise Exception('User not found')
+     if not password_context.verify(user.password, row["password"]):
+          raise Exception('Invalid password')
+     
+     exp = datetime.datetime.now(datetime.timezone.utc) + datetime.timedelta(hours=1)
+     payload = {
+          "id": row["id"],
+          "exp": exp
+     }
+     
+     return jwt.encode(payload=payload, key=JWT_SECRET, algorithm="HS256")
\ No newline at end of file
diff --git a/main.py b/main.py
new file mode 100644
index 0000000..70c4d17
--- /dev/null
+++ b/main.py
@@ -0,0 +1,26 @@
+from fastapi import FastAPI
+from contextlib import asynccontextmanager
+import database
+import models
+
+@asynccontextmanager
+async def lifespan(app: FastAPI):
+    database.init()
+    yield
+    database.close()
+
+app = FastAPI(lifespan=lifespan)
+
+
+@app.get("/")
+async def root():
+    return {"message": "Hello World"}
+
+@app.post("/users")
+async def register(user: models.User):
+    database.register(user)
+    return user
+
+@app.post("/login")
+async def login(user: models.User):
+    return database.login(user)
\ No newline at end of file
diff --git a/models.py b/models.py
new file mode 100644
index 0000000..8f458c7
--- /dev/null
+++ b/models.py
@@ -0,0 +1,5 @@
+from pydantic import BaseModel
+
+class User(BaseModel):
+    name: str
+    password: str