#!/usr/bin/env node
// Suite de tests du nœud CENSORSHIP (chantier bilan énergétique).
// Exécute le VRAI code de src/energy-balance/CENSORSHIP.js dans une sandbox vm,
// avec le shim $input de n8n, sur des snapshots HA (réel + cas construits).
//
// Usage : node tests/energy-balance/run.mjs [--print] [--only=<motif>]

import fs from 'node:fs';
import path from 'node:path';
import vm from 'node:vm';
import { fileURLToPath } from 'node:url';
import { scenarios } from './scenarios.mjs';

const ROOT = path.resolve(path.dirname(fileURLToPath(import.meta.url)), '../..');
const CODE = fs.readFileSync(path.join(ROOT, 'src/energy-balance/CENSORSHIP.js'), 'utf8');

const PRINT = process.argv.includes('--print');
const ONLY = (process.argv.find(a => a.startsWith('--only=')) || '').split('=')[1];

function runNode(snapshot) {
  const sandbox = {
    $input: { first: () => ({ json: snapshot }) },
    console,
  };
  vm.createContext(sandbox);
  const out = vm.runInContext(`(function(){ ${CODE} })()`, sandbox, { timeout: 5000 });
  return out[0].json;
}

function summarize(o) {
  return {
    pvCensored: o.censorship.pvCensored,
    reasons: o.censorship.reasons.join('|'),
    sampleExploitable: o.censorship.sampleExploitable,
    healthOk: o.health.ok,
    alerts: o.alerts.join('|'),
  };
}

let failed = 0;
for (const sc of scenarios) {
  if (ONLY && !sc.id.includes(ONLY)) continue;
  const got = summarize(runNode(sc.snapshot));

  if (PRINT) {
    console.log(`─── ${sc.id} | ${sc.label}`);
    console.log('   ' + JSON.stringify(got));
    continue;
  }

  const diffs = [];
  for (const [k, want] of Object.entries(sc.expect)) {
    if (JSON.stringify(got[k]) !== JSON.stringify(want)) {
      diffs.push(`   ${k}: attendu ${JSON.stringify(want)}, obtenu ${JSON.stringify(got[k])}`);
    }
  }
  if (diffs.length) {
    failed++;
    console.log(`❌ ${sc.id} | ${sc.label}`);
    diffs.forEach(d => console.log(d));
  } else {
    console.log(`✅ ${sc.id}`);
  }
}

if (PRINT) process.exit(0);
console.log('');
if (failed) {
  console.log(`${failed} ÉCHEC(S) — NE PAS POUSSER EN PRODUCTION`);
  process.exit(1);
}
console.log(`ENERGY BALANCE OK — ${scenarios.length}/${scenarios.length} scénarios conformes`);