task-master-neo-sdlc/src/core/neo/agents/backend-developer.js

Enhanced task management system with Neo SDLC agents and MCP tools for comprehensive, AI-driven software development lifecycle management.

import { KnowledgeGraph } from '../knowledge-graph';
import { AgentWorkflowSystem } from '../agent-workflow';

// Assume potential interaction with DB agent or ORM
// import { DatabaseManagerAgent } from './database-manager';

export class BackendDevelopmentAgent {
  constructor(knowledgeGraph, workflow /*, databaseManagerAgent */) {
    this.knowledgeGraph = knowledgeGraph;
    this.workflow = workflow;
    // this.databaseManager = databaseManagerAgent;
  }

  /**
   * Creates a new API endpoint definition.
   * @param {string} path - Endpoint path (e.g., '/api/users').
   * @param {string} method - HTTP method (e.g., 'GET', 'POST').
   * @param {string} description - Description of the endpoint.
   * @param {object} requestSchema - Schema definition for the request body/params.
   * @param {object} responseSchema - Schema definition for the response body.
   * @returns {Promise<object>} The created API endpoint node data.
   */
  async createApiEndpoint(path, method, description, requestSchema, responseSchema) {
    console.log(`Creating API endpoint: ${method} ${path}`);
    const endpointId = `api_endpoint:${method}:${path.replace(/\//g, '_')}`;

    const endpointData = {
      id: endpointId,
      path,
      method,
      description,
      requestSchema,
      responseSchema,
      status: 'defined' // defined, implemented, deprecated
      // Add other relevant details like authentication requirements, rate limits etc.
    };

    // Add API endpoint definition to knowledge graph
    await this.knowledgeGraph.addNode({
      id: endpointId,
      type: 'api_endpoint',
      data: endpointData
    });

    console.log(`API Endpoint ${endpointId} definition created.`);
    return endpointData;
  }

  /**
   * Implements the business logic for a defined API endpoint.
   * @param {string} endpointId - The ID of the API endpoint node in KG.
   * @param {string} logicImplementation - Code or description of the implementation.
   * @param {Array<string>} [dependencies=[]] - IDs of other services or data models used.
   * @returns {Promise<object>} The updated API endpoint node data.
   */
  async implementApiLogic(endpointId, logicImplementation, dependencies = []) {
    console.log(`Implementing logic for API endpoint: ${endpointId}`);
    const endpointNode = await this.knowledgeGraph.findNodes({ id: endpointId, type: 'api_endpoint' }).then(n => n[0]);

    if (!endpointNode) {
      throw new Error(`API Endpoint ${endpointId} definition not found.`);
    }

    // Update endpoint data with implementation details
    endpointNode.data.implementation = logicImplementation;
    endpointNode.data.status = 'implemented';
    endpointNode.data.dependencies = dependencies;

    await this.knowledgeGraph.updateContext({ id: endpointNode.id, data: endpointNode.data });

    // Add dependency edges in KG
    for (const depId of dependencies) {
        await this.knowledgeGraph.addEdge({
            source: endpointId,
            target: depId,
            relationship: 'depends_on'
        });
    }

    console.log(`Logic implemented for API endpoint ${endpointId}.`);
    return endpointNode.data;
  }

  /**
   * Creates or updates a database model/schema based on requirements.
   * @param {string} modelName - Name of the data model (e.g., 'User', 'Product').
   * @param {object} schemaDefinition - The fields and types for the model.
   * @returns {Promise<object>} The created/updated schema node data.
   */
  async defineDatabaseModel(modelName, schemaDefinition) {
    console.log(`Defining database model: ${modelName}`);
    const schemaId = `db_schema:${modelName.toLowerCase()}`;

    const schemaData = {
      id: schemaId,
      modelName,
      schema: schemaDefinition,
      version: 1 // Simple versioning, could be more sophisticated
      // Add relationships, indexes etc.
    };

    // Check if node exists to update or create
    const existingNode = await this.knowledgeGraph.findNodes({ id: schemaId, type: 'db_schema' }).then(n => n[0]);

    if (existingNode) {
        console.log(`Updating existing schema: ${schemaId}`);
        // Basic version increment, real versioning needs more logic
        schemaData.version = (existingNode.data.version || 0) + 1;
        await this.knowledgeGraph.updateContext({ id: schemaId, data: schemaData });
    } else {
        console.log(`Creating new schema: ${schemaId}`);
        await this.knowledgeGraph.addNode({
            id: schemaId,
            type: 'db_schema',
            data: schemaData
        });
    }

    // Optionally trigger migration planning via DatabaseManagerAgent
    // if (existingNode) {
    //   await this.databaseManager.planSchemaMigration(existingNode.id, schemaId);
    // }

    console.log(`Database model ${modelName} defined/updated.`);
    return schemaData;
  }
}