From 1b40b1bed9f96e640c38ea2133bb684635f7965c Mon Sep 17 00:00:00 2001
From: Kalevich Ivan <ivan_kalevich@epam.com>
Date: Tue, 14 Apr 2026 15:58:12 +0300
Subject: [PATCH] feat: add priority field to todos (low/medium/high)

---
 src/models/todo.js  | 4 ++--
 src/routes/todos.js | 9 +++++++--
 2 files changed, 9 insertions(+), 4 deletions(-)

diff --git a/src/models/todo.js b/src/models/todo.js
index bc96713..44e44d1 100644
--- a/src/models/todo.js
+++ b/src/models/todo.js
@@ -9,8 +9,8 @@ function getById(id) {
   return todos.find(t => t.id === id) || null;
 }
 
-function create(title) {
-  const todo = { id: nextId++, title, done: false };
+function create(title, priority) {
+  const todo = { id: nextId++, title, done: false, priority: priority || 'medium' };
   todos.push(todo);
   return todo;
 }
diff --git a/src/routes/todos.js b/src/routes/todos.js
index e28def5..db7c95a 100644
--- a/src/routes/todos.js
+++ b/src/routes/todos.js
@@ -2,6 +2,8 @@ const express = require('express');
 const router = express.Router();
 const Todo = require('../models/todo');
 
+const VALID_PRIORITIES = ['low', 'medium', 'high'];
+
 // GET /todos
 router.get('/', (req, res) => {
   res.json(Todo.getAll());
@@ -16,9 +18,12 @@ router.get('/:id', (req, res) => {
 
 // POST /todos
 router.post('/', (req, res) => {
-  const { title } = req.body;
+  const { title, priority } = req.body;
   if (!title) return res.status(400).json({ error: 'title is required' });
-  res.status(201).json(Todo.create(title));
+  if (priority && !VALID_PRIORITIES.includes(priority)) {
+    return res.status(400).json({ error: 'priority must be low, medium or high' });
+  }
+  res.status(201).json(Todo.create(title, priority));
 });
 
 // PATCH /todos/:id