// Arguments we dont want users to use with youtube-dl
// because they will break the module.
const badArgs = [
  '-h',
  '--help',
  '-v',
  '--version',
  '-U',
  '--update',
  '-q',
  '--quiet',
  '-s',
  '--simulate',
  '-g',
  '--get-url',
  '-e',
  '--get-title',
  '--get-id',
  '--get-thumbnail',
  '--get-description',
  '--get-duration',
  '--get-filename',
  '--get-format',
  '-j',
  '--dump-json',
  '--newline',
  '--no-progress',
  '--console-title',
  '-v',
  '--verbose',
  '--dump-intermediate-pages',
  '--write-pages',
  '--print-traffic'
]

/**
 * Helps parse options used in youtube-dl command.
 *
 * @param {Array.<String>}
 * @return {Array.<String>}
 */
exports.parseOpts = function (args) {
  var pos
  for (var i = 0, len = badArgs.length; i < len; i++) {
    if ((pos = args.indexOf(badArgs[i])) !== -1) {
      args.splice(pos, 1)
    }
  }
  return args
}

/**
 * Converts seconds to format hh:mm:ss
 *
 * @param {Number} seconds
 * @return {String}
 */
exports.formatDuration = function (seconds) {
  var parts = []
  parts.push(seconds % 60)
  var minutes = Math.floor(seconds / 60)
  if (minutes > 0) {
    parts.push(minutes % 60)
    var hours = Math.floor(minutes / 60)
    if (hours > 0) {
      parts.push(hours)
    }
  }
  return parts.reverse().join(':')
}

/**
 * Checks wether str is a string or not
 *
 * @param {String} str
 * @return {Boolean}
 */
exports.isString = str => typeof str === 'string'

/**
 * Checks arr contains value
 *
 * @param {Array} arr
 * @param {string|number} arr
 * @return {Boolean}
 */
exports.has = (arr, value) => arr && arr.indexOf(value) > -1

exports.isYouTubeRegex = /^(https?:\/\/)?(www\.)?(youtube\.com|youtu\.be)\//

exports.isWin =
  process.platform === 'win32' || process.env.NODE_PLATFORM === 'windows'