/**
 * Minimal Node.js client for Kompanion MCP memory tools.
 *
 * The helpers spawn the `kom_mcp` CLI with a tool name and JSON payload,
 * then return the parsed response.
 */

import { spawnSync } from 'node:child_process';

function runKomMcp(toolName, payload) {
  const request = JSON.stringify(payload);
  const result = spawnSync('kom_mcp', [toolName, request], {
    encoding: 'utf8'
  });

  if (result.error) {
    throw result.error;
  }
  if (result.status !== 0) {
    throw new Error(`kom_mcp exited with code ${result.status}: ${result.stderr}`);
  }
  const output = result.stdout.trim();
  if (!output) {
    return {};
  }
  try {
    return JSON.parse(output);
  } catch (err) {
    throw new Error(`Failed to parse kom_mcp response: ${err}. Raw output: ${output}`);
  }
}

export function saveContext(payload) {
  return runKomMcp('kom.memory.v1.save_context', payload);
}

export function recallContext(payload) {
  return runKomMcp('kom.memory.v1.recall_context', payload);
}

export function searchMemory(payload) {
  return runKomMcp('kom.memory.v1.search_memory', payload);
}

export default {
  saveContext,
  recallContext,
  searchMemory
};