#!/usr/bin/env node
'use strict';

const chalk = require('chalk');
const deepAssign = require('deep-assign');
const fs = require('fs');
const meow = require('meow');
const path = require('path');

const MochaChrome = require('../');
const cli = meow(chalk`{underline Usage}
  $ mocha-chrome <file.html> [options]


{underline Options}
  --mocha                     A JSON string representing a config object to pass to Mocha
  --log-level                 Specify a log level; trace, debug, info, warn, error
  --no-colors                 Disable colors in Mocha's output
  --reporter                  Specify the Mocha reporter to use
  --timeout                   Specify the test startup timeout to use
  --ignore-resource-errors    Suppress resource error logging


{underline Examples}
  $ mocha-chrome test.html --no-colors
  $ mocha-chrome test.html --reporter dot
  $ mocha-chrome test.html --mocha '\{"ui":"tdd"\}'
`);

if (!cli.input.length && !Object.getOwnPropertyNames(cli.flags).length) {
  cli.showHelp();
}

const file = cli.input[0];
const flags = cli.flags;
let url = file,
  code = 0;

function fail (message) {
  console.log(message);
  process.exit(1);
}

if (!file && !file.length) {
  fail('You must specify a file to run');
}

if (!/^(file|http(s?)):\/\//.test(file)) {
  if (!fs.existsSync(file)) {
    url = 'file://' + path.resolve(path.join(process.cwd(), file));
  }

  if (!fs.existsSync(file)) {
    fail('You must specify an existing file.');
  }

  url = 'file://' + fs.realpathSync(file);
}

const mochaDefaults = {
  reporter: flags.reporter || 'spec',
  useColors: !flags.colors
};
const mocha = deepAssign(mochaDefaults, JSON.parse(flags.mocha || '{}'));
const logLevel = flags.logLevel || 'error';
const ignoreResourceErrors = flags.ignoreResourceErrors || false
const options = { url, logLevel, mocha, ignoreResourceErrors };
const runner = new MochaChrome(options);

runner.on('ended', stats => {
  code = stats.failures;
});

runner.on('failure', message => {
  code = 1;
});

runner.on('exit', () => process.exit(code));

(async function run () {
  await runner.connect();
  await runner.run();
})();