refactor(logic): extract task management into useTasks custom hook

src/App.tsx

@@ -1,43 +1,11 @@
-import { useEffect, useState } from "react"
-import type { Task } from "./types/task";
+import { useState } from "react"
 import { TaskItem } from "./components/TaskItem";
+import { useTasks } from "./hooks/useTasks";
 
 function App() {
-  const [tasks, setTasks] = useState<Task[]>(() => {
-    const savedTasks = localStorage.getItem('tasks');
-    return savedTasks ? JSON.parse(savedTasks) : []
-  });
-
+  
   const [inputValue, setInputValue] = useState<string>('');
-
-  useEffect(() => {
-    localStorage.setItem('tasks', JSON.stringify(tasks));
-  }, [tasks]);
-
-  const addTask = () => {
-    if (inputValue.trim() === '') return;
-
-    const newTask: Task = {
-      id: Date.now(),
-      title: inputValue,
-      completed: false,
-      createdAt: new Date().toISOString()
-    };
-
-    setTasks([...tasks, newTask]);
-
-    setInputValue('');
-  };
-
-  const deleteTask = (id: number) => {
-    setTasks(tasks.filter(task => task.id !== id));
-  }
-
-  const toggleTask = (id: number) => {
-    setTasks(tasks.map(task => 
-      task.id === id ? { ...task, completed: !task.completed} : task
-    ));
-  };
+  const { tasks, addTask, deleteTask, toggleTask } = useTasks();
 
   return (
     <div className="container">
@@ -49,7 +17,7 @@ function App() {
           value={inputValue}
           onChange={(e) => setInputValue(e.target.value)}
          />
-         <button onClick={addTask}>Add</button>
+         <button onClick={() => addTask(inputValue)}>Add</button>
       </div>
       <div className="task-list">
         {tasks.length === 0 ? (

src/hooks/useTasks.tsx

@@ -0,0 +1,40 @@
+import { useEffect, useState } from "react";
+import type { Task } from "../types/task";
+
+export const useTasks = () => {
+    const [tasks, setTasks] = useState<Task[]>(() => {
+        const savedTasks = localStorage.getItem('tasks');
+        return savedTasks ? JSON.parse(savedTasks) : []
+    });
+
+    useEffect(() => {
+        localStorage.setItem('tasks', JSON.stringify(tasks));
+    }, [tasks]);
+
+    const addTask = (title: string) => {
+        if (title.trim() === '') return;
+
+        const newTask: Task = {
+            id: Date.now(),
+            title: title,
+            completed: false,
+            createdAt: new Date().toISOString()
+        };
+
+        setTasks([...tasks, newTask]);
+
+        setTasks(prev => [...prev, newTask]);
+    };
+
+    const deleteTask = (id: number) => {
+        setTasks(tasks.filter(task => task.id !== id));
+    }
+
+    const toggleTask = (id: number) => {
+        setTasks(tasks.map(task =>
+            task.id === id ? { ...task, completed: !task.completed } : task
+        ));
+
+    }
+    return { tasks, addTask, deleteTask, toggleTask };
+};