'use strict';

/**
 * Simple deployment script.
 *
 * Run it through:
 *  $ npm run deploy
 *
 * Note that the script will add all files to remote server without doing diffs
 * or anything. It behaves pretty much like rsync.
 *
 * It accepts file ignoring through wildcards, which might come in handy:
 *  $ npm run deploy -- -i '*.jpg' # Do not deploy .jpg files
 **/

const argv = require('yargs').alias('i', 'ignore').argv;
const figures = require('figures');
const chalk = require('chalk');
const logUpdate = require('log-update');
const FTPDeploy = require('ftp-deploy');
const deployer = new FTPDeploy();
const options = require('../options.json');
const ignore = argv.ignore ? argv.ignore.split(',') : [];

let settings = {
  username: options.credentials.username,
  password: options.credentials.password,
  host: options.host,
  port: 21,
  localRoot: options.localFolder,
  remoteRoot: options.remoteFolder,
  continueOnError: true,
  exclude: ['.git', '.keep', '.DS_Store'].concat(ignore)
};

let log = {};
let interval = 0;
let hasStarted = false;

// Start deployment
const start = () => {
  hasStarted = true;

  prompt('Deploy started');

  // Freezes `stdout` and update log with deploy information
  interval = setInterval(() => {
    logUpdate(`${chalk.green(figures.pointer)} Uploaded ${chalk.bold(log.transferredFileCount)} of ${chalk.bold(log.totalFileCount)} files (${log.percentComplete}% complete)
  ${chalk.underline(log.filename)}`);
  }, 250);
};

// Helper to prompt a fancy message to `stdout`
const prompt = message => {
  console.log(`${chalk.green(figures.pointer)} ${message}`);
};

prompt('Connecting to server...');

deployer.deploy(settings, error => {
  // Failure
  if(error) throw error;

  // Success
  clearInterval(interval);
  prompt(`Successfully deployed ${figures.tick}`);
});

deployer.on('uploading', data => {
  if(!hasStarted) start();

  // Save data to a local variable so we can easily use it w/ logUpdate
  log = data;
});

// Notifies bad upload
deployer.on('upload-error', data => {
  console.error(`${chalk.red(figures.warning)} Problem uploading file "${data.filename}"`);
});