#!/usr/bin/env node
import * as fs from 'fs-extra';
import * as path from 'path';
import readline from 'readline';
import yargs from 'yargs';

import { loadEnvironment } from '@squeebot/core/lib/core';
import { IEnvironment } from '@squeebot/core/lib/types';

import { Squeebot } from './core';

const rl = readline.createInterface({
  input: process.stdin,
  output: process.stdout,
});

async function start(argv: any): Promise<void> {
  if (!argv.environment) {
    throw new Error('Environment file is missing.');
  }

  let root;
  if (argv.root) {
    root = path.resolve(argv.root);
  }

  const enviroFile = path.resolve(process.cwd(), argv.environment);
  const env: IEnvironment = await loadEnvironment(argv.environment, root);

  const sb = new Squeebot(env);

  sb.stream.on('logger', 'debug', (data: string) => console.log('DEBUG', data));

  await sb.initialize();

  sb.attachReadline(rl);
}

yargs.scriptName('squeebotd')
  .command('$0 [environment]', 'start Squeebot daemon', (y) => {
    y.positional('environment', {
      demandOption: 'The environment file is mandatory.',
      describe: 'The environment file to use, in json format',
    })
    .option('r', {
      alias: 'root',
      describe: 'Change the root directory of execution to differ from the one in your environment file',
      nargs: 1,
      type: 'string',
    })
    .option('e', {
      alias: 'no-enable',
      describe: 'Do not automatically execute enabled plugins on startup',
      type: 'boolean',
    });
  });

start(yargs.argv).catch((e) => console.error(e.stack));