User: Task: "Delete Todo Item"
    Description: "Generate a Node.js controller function to delete a todo item using the Mongoose Todo model."
    Requirements:
    - Database: mongoose
    - Authentication: user
    - Output needed: Return only the function code.
    - Dependencies: Create a function to delete a single todo item by its ID. Export the function itself. Function mode: exports.functionName = async () => {...}, 
Accept parameter: id (as a URL parameter)., 
Validate required field: Ensure id is provided and valid., 
Use the Todo model to find and delete the record in the database using the provided id., 
Respond with a success message indicating the item was deleted., 
Handle errors, such as invalid ID or item not found, and return appropriate error messages.
    - Previous Code 
const mongoose = require('mongoose');
const { Todo } = require('../models/Todo'); // Assumes Todo model is exported from models/Todo.js
// Export the function as per the specified mode
exports.createTodoItem = async (req, res) => {
  try {
    const { title, description, status, priority, dueDate } = req.body;

    // Validate required fields
    if (!title || !status) {
      return res.status(400).json({ error: 'Title and status are required.' });
    }

    // Create a new Todo item using the Todo model
    const newTodo = new Todo({
      title,
      description,
      status,
      priority,
      dueDate,
    });

    // Save to the database
    const savedTodo = await newTodo.save();

    // Respond with the created todo details and a success message
    return res.status(201).json({
      message: 'Todo item created successfully.',
      todo: savedTodo,
    });
  } catch (error) {
    // Handle any errors
    return res.status(500).json({ error: 'An error occurred while creating the todo item.' });
  }
};

// Import required dependencies
const mongoose = require('mongoose');
const { Todo } = require('../models/Todo'); // Assumes Todo model is exported from models/Todo.js

// Export the function to update a todo item
exports.updateTodoItem = async (req, res) => {
  try {
    const { id } = req.params; // Get the id from the URL parameters
    const { title, description, status, priority, dueDate } = req.body; // Get the fields from the request body

    // Simple validation to check if id is provided and is a valid MongoDB ObjectId
    if (!id || !mongoose.Types.ObjectId.isValid(id)) {
      return res.status(400).json({ error: 'A valid todo item ID is required.' });
    }

    // Update the Todo item in the database using the provided id
    const updatedTodo = await Todo.findByIdAndUpdate(
      id,
      { title, description, status, priority, dueDate },
      { new: true, runValidators: true } // Return the updated document
    );

    // Check if the todo item was found and updated
    if (!updatedTodo) {
      return res.status(404).json({ error: 'Todo item not found.' });
    }

    // Respond with the updated todo details and a success message
    return res.status(200).json({
      message: 'Todo item updated successfully.',
      todo: updatedTodo,
    });
  } catch (error) {
    // Handle any errors
    return res.status(500).json({ error: 'An error occurred while updating the todo item.' });
  }
};

    - Supporting data 
    - Updating File "src/controllers/TodoController.js"
    
    Please generate the code for this task, following the instructions and including comments for clarity.
    While creating router for specifict file your have to read supporing file data and create for that 

    **Output Formats**: 

Return dependencies like this `const bcrypt = require('bcrypt');`  in this formate
```dependencies
const bcrypt = require('bcrypt');
```

Ensure this format is consistently followed in responses.
    
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