#!/usr/bin/env node

var program = require('commander');
var spawn = require('child_process').spawn;
var fs = require('fs');
var ListSuites = require('./utils/ListSuites');

let suite;

program
  .description(`Start the suite provided as argument. You can list the suites with the 'list' command.`)
  .arguments('<suite>')
  .action((suiteArg) => suite = suiteArg)
  .parse(process.argv)

if (!suite) {
  program.help();
}

if (ListSuites().indexOf(suite) == -1) {
  console.log("[WARNING] This suite does not exist. Use 'list' command to check the existing suites.");
  process.exit(1);
}

const ENVIRONMENT_FILENAME = '.suite';

let runEnvProcess;

// Sometime SIGINT is received twice, we make sure with this variable that we cleanup
// only once.
var alreadyCleaningUp = false;

// Properly cleanup server and client if ctrl-c is hit
process.on('SIGINT', function() {
  if (alreadyCleaningUp) return;
  alreadyCleaningUp = true;
  console.log('Cleanup procedure is running...');
});

async function main() {
  fs.writeFileSync(ENVIRONMENT_FILENAME, suite);

  // Start the environment from ts-node process.
  runEnvProcess = spawn('./node_modules/.bin/ts-node -P test/tsconfig.json -- ./scripts/run-environment.ts ' + suite, {
    shell: true
  });
  runEnvProcess.stdout.pipe(process.stdout);
  runEnvProcess.stderr.pipe(process.stderr);

  runEnvProcess.on('exit', function(statusCode) {
    fs.unlinkSync(ENVIRONMENT_FILENAME);
    process.exit(statusCode);
  });
}

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