mini-todo-list-mcp/src/models/Todo.ts

A streamlined Model Context Protocol (MCP) server for todo management with essential CRUD operations, bulk functionality, and workflow support

/**
 * Todo.ts - Mini Version
 * 
 * Core todo model and validation schemas for the mini MCP server.
 * Includes only the essential schemas for CRUD operations, bulk operations, and workflow.
 * Uses integer IDs for simplicity.
 */
import { z } from 'zod';

/**
 * Core Todo interface - using integer IDs for simplicity
 */
export interface Todo {
  id: number;
  title: string;
  description: string;
  completed: boolean;
  completedAt: string | null;
  createdAt: string;
  updatedAt: string;
  filePath?: string;
  status: 'New' | 'Done';
  taskNumber?: number;
}

/**
 * Essential validation schemas for mini version
 */

// CRUD Operations
export const CreateTodoSchema = z.object({
  title: z.string().min(1, "Title is required"),
  description: z.string().min(1, "Description is required"),
  filePath: z.string().min(1, "File path is required").optional(),
});

export const GetTodoSchema = z.object({
  id: z.number().int().positive("Invalid Todo ID"),
});

export const UpdateTodoSchema = z.object({
  id: z.number().int().positive("Invalid Todo ID"),
  title: z.string().min(1, "Title is required").optional(),
  description: z.string().min(1, "Description is required").optional(),
});

export const CompleteTodoSchema = z.object({
  id: z.number().int().positive("Invalid Todo ID"),
});

export const DeleteTodoSchema = z.object({
  id: z.number().int().positive("Invalid Todo ID"),
});

// Bulk Operations
export const BulkAddTodosSchema = z.object({
  folderPath: z.string().min(1, "Folder path is required"),
  clearAll: z.boolean().optional().default(false),
});

/**
 * Factory function to create a new Todo with proper defaults
 * Note: ID will be set by the database auto-increment
 */
export function createTodo(
  data: z.infer<typeof CreateTodoSchema>, 
  filePath?: string, 
  taskNumber?: number
): Omit<Todo, 'id'> {
  const now = new Date().toISOString();
  
  return {
    title: data.title,
    description: data.description,
    completed: false,
    completedAt: null,
    createdAt: now,
    updatedAt: now,
    filePath,
    status: 'New',
    taskNumber,
  };
}