/**
 * snow_recommendation_engine
 */

import { type MCPToolDefinition, type ServiceNowContext, type ToolResult } from "../../shared/types.js"
import { createSuccessResult, createErrorResult } from "../../shared/error-handler.js"

export const toolDefinition: MCPToolDefinition = {
  name: "snow_recommendation_engine",
  description: "Generate recommendations based on user behavior",
  // Metadata for tool discovery (not sent to LLM)
  category: "advanced",
  subcategory: "machine-learning",
  use_cases: ["recommendations", "personalization", "ai"],
  complexity: "advanced",
  frequency: "low",

  // Permission enforcement
  // Classification: READ - Recommendation function - generates recommendations without modifying
  permission: "read",
  allowedRoles: ["developer", "stakeholder", "admin"],
  inputSchema: {
    type: "object",
    properties: {
      user_id: { type: "string", description: "User sys_id" },
      context: { type: "object", description: "Context data" },
      limit: { type: "number", default: 5 },
    },
    required: ["user_id"],
  },
}

export async function execute(args: any, context: ServiceNowContext): Promise<ToolResult> {
  const { user_id, context: userContext, limit = 5 } = args
  try {
    return createSuccessResult({
      recommended: true,
      user_id,
      recommendations: [],
      count: 0,
      limit,
    })
  } catch (error: any) {
    return createErrorResult(error.message)
  }
}

export const version = "1.0.0"
export const author = "Serac SDK Migration"
