outlook-mcp/tasks/delete.js

Comprehensive MCP server for Claude to access Microsoft Outlook and Teams via Microsoft Graph API - including Email, Calendar, Contacts, Tasks, Teams, Chats, and Online Meetings

/**
 * Delete task functionality
 */
const { callGraphAPI } = require('../utils/graph-api');
const { ensureAuthenticated } = require('../auth');

/**
 * Delete task handler
 * @param {object} args - Tool arguments
 * @returns {object} - MCP response
 */
async function handleDeleteTask(args) {
  try {
    const { taskId, listId } = args;
    
    if (!taskId) {
      return {
        error: {
          code: -32602,
          message: "taskId is required"
        }
      };
    }
    
    // Ensure user is authenticated
    const accessToken = await ensureAuthenticated();
    
    // Get the target list ID if not provided
    let targetListId = listId;
    if (!targetListId) {
      // Get default task list
      const listsResponse = await callGraphAPI(accessToken, 'GET', 'me/todo/lists', null, { '$select': 'id,displayName,isOwner' });
      const defaultList = listsResponse.value.find(list => list.displayName === 'Tasks') || listsResponse.value[0];
      
      if (!defaultList) {
        return {
          error: {
            code: -32603,
            message: "No task lists found"
          }
        };
      }
      
      targetListId = defaultList.id;
    }
    
    // First, get the task details for confirmation
    const taskPath = `me/todo/lists/${targetListId}/tasks/${taskId}`;
    let taskTitle = 'Unknown';
    
    try {
      const task = await callGraphAPI(accessToken, 'GET', taskPath, null, { '$select': 'title' });
      taskTitle = task.title || 'Unknown';
    } catch (error) {
      // If we can't get the task, it might not exist
      console.error('Could not retrieve task for deletion:', error);
    }
    
    // Build the API path
    const apiPath = `me/todo/lists/${targetListId}/tasks/${taskId}`;
    
    console.error(`Deleting task: ${taskId} (${taskTitle})`);
    
    // Make API call to delete the task
    await callGraphAPI(accessToken, 'DELETE', apiPath);
    
    return {
      content: [
        {
          type: "text",
          text: `✅ Task deleted successfully!

**Task:** ${taskTitle}
**Task ID:** ${taskId}

The task has been permanently removed from your task list.`
        }
      ]
    };
  } catch (error) {
    console.error('Error in handleDeleteTask:', error);
    
    // Handle specific error cases
    if (error.message.includes('404') || error.message.includes('Not Found')) {
      return {
        error: {
          code: -32603,
          message: `Task not found: ${taskId}`
        }
      };
    }
    
    return {
      error: {
        code: -32603,
        message: `Failed to delete task: ${error.message}`
      }
    };
  }
}

module.exports = handleDeleteTask;