#!/usr/bin/env node
"use strict";

// update.js - script de utilidad para EasyPanel
// Copia docker-compose.easypanel.yml a ./code/docker-compose.yml y elimina
// container_name y ports para que EasyPanel gestione nombres y puertos.

const fs = require('fs');
const path = require('path');

const SRC = path.resolve(__dirname, '../docker-compose.easypanel.yml');
const DEST_DIR = path.resolve(__dirname, './code');
const DEST = path.join(DEST_DIR, 'docker-compose.yml');

// Variables secret requeridas para evitar despliegues con valores vacíos
const REQUIRED_SECRETS = ['POSTGRES_PASSWORD', 'RABBITMQ_DEFAULT_PASS'];

function parseEnvFile(filePath) {
  const out = {};
  if (!fs.existsSync(filePath)) return out;
  const raw = fs.readFileSync(filePath, 'utf8');
  raw.split(/\n/).forEach(line => {
    line = line.trim();
    if (!line || line.startsWith('#')) return;
    const m = line.match(/^([A-Za-z_][A-Za-z0-9_]*)=(.*)$/);
    if (m) {
      let val = m[2];
      // strip optional quotes
      if ((val.startsWith("\'") && val.endsWith("\'")) || (val.startsWith('"') && val.endsWith('"'))) {
        val = val.slice(1, -1);
      }
      out[m[1]] = val;
    }
  });
  return out;
}

function validateRequiredSecrets() {
  const envFilePath = path.join(__dirname, 'service.env');
  const fileEnv = parseEnvFile(envFilePath);
  const missing = [];
  REQUIRED_SECRETS.forEach(k => {
    const v = (process.env[k] || '').trim() || (fileEnv[k] || '').trim();
    // treat obvious placeholders as missing
    if (!v || /^\s*(CAMBIA|pon_aqui|tu_|CHANGE|REPLACE)/i.test(v)) {
      missing.push(k);
    }
  });
  if (missing.length) {
    console.error('ERROR: faltan valores seguros para las siguientes variables:', missing.join(', '));
    console.error('Asegúrate de definirlas en la sección Environment/Secrets de EasyPanel o en', envFilePath);
    console.error('Variables requeridas:', REQUIRED_SECRETS.join(', '));
    process.exit(2);
  }
}

function removeContainerNamesAndPorts(content) {
  // Eliminar container_name: <valor> líneas
  content = content.replace(/^[ \t]*container_name:[^\n]*\n/gm, '');
  // Eliminar version: ... para evitar advertencias en EasyPanel
  content = content.replace(/^[ \t]*version:[^\n]*\n/gm, '');
  // Eliminar bloques de ports:
  // ports:\n    - "..."\n    - ...
  content = content.replace(/^[ \t]*ports:[^\n]*\n(?:^[ \t]+-.*\n)*/gim, '');
  return content;
}

async function main() {
  // Validar secretos antes de generar el compose final
  validateRequiredSecrets();
  if (!fs.existsSync(SRC)) {
    console.error('ERROR: no se encuentra', SRC);
    process.exit(2);
  }

  if (!fs.existsSync(DEST_DIR)) fs.mkdirSync(DEST_DIR, { recursive: true });

  const raw = fs.readFileSync(SRC, 'utf8');
  const sanitized = removeContainerNamesAndPorts(raw);

  fs.writeFileSync(DEST, sanitized, 'utf8');
  console.log('Preparado', DEST);
}

main().catch(err => {
  console.error(err);
  process.exit(1);
});