#!/usr/bin/env node

const _ = require('lodash');
const path = require('path');
const tmp = require('tmp');
const { promisifyAll } = require('../src/utils/promisify');

const fse = require('fs-extra');
const childProcess = promisifyAll(require('child_process'));

const appTemplates = require('../src/app-templates');

const validateAppTemplate = (template, rootTmpDir) => {
  // const appDir = path.resolve(rootTmpDir, template);
  const zapierCmd = path.resolve(__dirname, '../src/bin/run');

  const logFile = path.resolve(__dirname, '..', `${template}.log`);
  const logStream = fse.createWriteStream(logFile);

  console.log(
    `Validating ${template} app template, writing logs to ${logFile}`,
  );
  return fse
    .ensureFile(logFile)
    .then(() => {
      return new Promise((resolve, reject) => {
        const cmd = `${zapierCmd} init ${template} --template=${template} --debug && cd ${template} && npm install && ${zapierCmd} validate && export CLIENT_ID=1234 CLIENT_SECRET=asdf && ${zapierCmd} test --timeout=5000`;
        const child = childProcess.exec(cmd, { cwd: rootTmpDir }, (err) => {
          if (err) {
            console.log('error starting child process:', err);
            reject(err);
          }
          resolve();
        });
        child.stdout.pipe(logStream);
        child.stderr.pipe(logStream);
      });
    })
    .then(() => {
      console.log(`${template} template validated successfully`);
      return null;
    })
    .catch(() => {
      console.error(`${template} template validation failed. See ${logFile}.`);
      return template;
    });
};

global.argOpts = {};

const rootTmpDir = tmp.tmpNameSync();
fse.removeSync(rootTmpDir);
fse.ensureDirSync(rootTmpDir);

const tasks = _.map(appTemplates, (template) =>
  validateAppTemplate(template, rootTmpDir),
);

Promise.all(tasks).then((results) => {
  const failures = _.filter(results, (result) => result !== null);
  if (failures.length) {
    console.error(
      'these app templates failed to validate:',
      failures.join(', '),
    );
  } else {
    console.log('app templates validated successfully');
  }
});