#!/usr/bin/env node

// Native
const { resolve } = require('path');

// Packages
const chalk = require('chalk');
const minimist = require('minimist');

// Ours
const login = require('../lib/login');
const cfg = require('../lib/cfg');
const error = require('../lib/utils/output/error');
const NowTeams = require('../lib/teams');
const logo = require('../lib/utils/output/logo');
const exit = require('../lib/utils/exit');

const argv = minimist(process.argv.slice(2), {
  string: ['config', 'token'],
  boolean: ['help', 'debug'],
  alias: {
    help: 'h',
    config: 'c',
    debug: 'd',
    token: 't',
    switch: 'change'
  }
});

const subcommand = argv._[0];

const help = () => {
  console.log(
    `
  ${chalk.bold(`${logo} now teams`)} <add | ls | rm | invite>

  ${chalk.dim('Options:')}

    -h, --help              Output usage information
    -c ${chalk.bold.underline('FILE')}, --config=${chalk.bold.underline('FILE')}  Config file
    -d, --debug             Debug mode [off]
    -t ${chalk.bold.underline('TOKEN')}, --token=${chalk.bold.underline('TOKEN')} Login token

  ${chalk.dim('Examples:')}

  ${chalk.gray('–')} Add a new team:

      ${chalk.cyan('$ now teams add')}

  ${chalk.gray('–')} Switch to a team:

      ${chalk.cyan(`$ now switch <id>`)}

      ${chalk.gray('–')} If the id is omitted, you can choose interactively

      ${chalk.yellow('NOTE:')} When you switch, everything you add, list or remove will be scoped that team!

  ${chalk.gray('–')} Invite new members (interactively):

      ${chalk.cyan(`$ now teams invite`)}

  ${chalk.gray('–')} Invite a specific email:

      ${chalk.cyan(`$ now teams invite geist@zeit.co`)}

  ${chalk.gray('–')} Remove a team:

      ${chalk.cyan(`$ now teams rm <id>`)}

      ${chalk.gray('–')} If the id is omitted, you can choose interactively
  `
  );
};

// Options
const debug = argv.debug;
const apiUrl = argv.url || 'https://api.zeit.co';

if (argv.config) {
  cfg.setConfigFile(argv.config);
}

if (argv.help || !subcommand) {
  help();
  exit(0);
} else {
  Promise.resolve().then(async () => {
    const config = await cfg.read();

    let token;
    try {
      token = argv.token || config.token || (await login(apiUrl));
    } catch (err) {
      error(`Authentication error – ${err.message}`);
      exit(1);
    }

    try {
      await run({token, config});
    } catch (err) {
      if (err.userError) {
        error(err.message);
      } else {
        error(`Unknown error: ${err.stack}`);
      }
      exit(1);
    }
  });
}

async function run({token, config: {currentTeam}}) {
  const teams = new NowTeams({ apiUrl, token, debug, currentTeam });
  const args = argv._.slice(1);

  switch (subcommand) {
    case 'switch':
    case 'change': {
      await require(resolve(__dirname, 'teams', 'switch.js'))(teams, args);
      break;
    }
    case 'add':
    case 'create': {
      await require(resolve(__dirname, 'teams', 'add.js'))(teams);
      break;
    }

    case 'invite': {
      await require(resolve(__dirname, 'teams', 'invite.js'))(teams, args);
      break;
    }

    default: {
      let code = 0;
      if (subcommand !== 'help') {
        error('Please specify a valid subcommand: ls | add | rm | set-default');
        code = 1;
      }
      help();
      exit(code);
    }
  }
}