#!/usr/bin/env node
import program from 'commander';
import { resolve } from 'path';
import { copy } from 'copy-paste';
import login from '../lib/login';
import now from '../lib';
import fs from 'fs';
import ms from 'ms';
import os from 'os';

program
.option('-d, --debug', 'Debug mode [off]', false)
.option('-L, --login', 'Configure login')
.option('-C, --no-clipboard', 'Do not attempt to copy URL to clipboard')
.parse(process.argv);

let path = program.args[program.args.length - 1];

if (path) {
  if ('/' !== path[0]) {
    path = resolve(process.cwd(), path);
  }
} else {
  path = process.cwd();
}

let config;

try {
  config = fs.readFileSync(resolve(os.homedir(), '.now.json'), 'utf8');
  config = JSON.parse(config);
} catch (err) {}

if (!config || !config.token) {
  login()
  .then((token) => {
    if (program.L) {
      console.log('> Logged in successfully. Token saved in ~/.now.json');
      process.exit(0);
    } else {
      sync(token);
    }
  })
  .catch((e) => {
    error(`Authentication error – ${e.message}`);
    process.exit(1);
  });
} else {
  sync(config.token);
}

function sync (token) {
  const debug = !!program.debug;
  const clipboard = !program.noClipboard;
  const start = Date.now();

  console.log(`> Deploying ${path}`);

  now(path, token, { debug })
  .then((url) => {
    const elapsed = ms(new Date() - start);
    if (clipboard) {
      copy(url, (err) => {
        console.log(`> ${url} ${!err ? '(copied to clipboard)' : ''} [${elapsed}]`);
      });
    } else {
      console.log(`> ${url} [${elapsed}]`);
    }
  }, (err) => {
    if (403 === err.status) {
      error('Authentication error. Run `now -L` to log-in again.');
    } else if (500 === err.status) {
      error('Unexpected server error. Please retry');
    } else {
      error(`Unexpected error. Please retry. (${err.message})`);
    }

    process.exit(1);
  });
}

function error (err) {
  console.error(`> \u001b[31mError!\u001b[39m ${err}.`);
}