const Base = require('./base.js')
const util = require('util')

class TypeBoolean extends Base {
  constructor () {
    super()
    this._type = 'boolean'
  }

  validate (value) {
    if (value === undefined && this._required) return `required`
    if (value === undefined) return null
    /* eslint-disable-next-line */
    if (typeof value !== this._type) return `${util.inspect(value, false, null)} type not ${this._type}`
    return null
  }
}

module.exports = TypeBoolean