#!/usr/bin/env node
// R2 — EXTRACT : workflows JSON → src/ (resynchronisation après édition UI n8n — à éviter).
// Usage : node tools/n8n-extract.mjs [fichierWorkflow]

import fs from 'fs';
import path from 'path';
import { WORKFLOWS, getCode, findWorkflowByFile } from './lib-node-map.mjs';

const fileArg = process.argv.slice(2).find(a => !a.startsWith('--'));
const targets = fileArg ? [findWorkflowByFile(fileArg)].filter(Boolean) : WORKFLOWS;

for (const w of targets) {
  if (!fs.existsSync(w.workflowFile)) {
    console.log(`(skip ${w.id}: ${w.workflowFile} absent)`);
    continue;
  }
  const wf = JSON.parse(fs.readFileSync(w.workflowFile, 'utf8'));
  fs.mkdirSync(w.srcDir, { recursive: true });
  for (const { file, node, kind } of w.nodes) {
    const n = wf.nodes.find(x => x.name === node);
    if (!n) throw new Error(`Node introuvable: ${node} (${w.workflowFile})`);
    const code = getCode(n, kind);
    fs.writeFileSync(path.join(w.srcDir, file), code);
    console.log(`${w.srcDir}/${file}  ←  "${node}" (${code.length} chars)`);
  }
}
console.log('\nExtraction OK');