18F/e-QIP-prototype

import { validate } from 'validate.js'
import { validateModel } from 'models/validate'
import {
  MISSING_ITEMS, INVALID_VALIDATOR,
} from 'constants/errors'

/**
 * Array:
 * {
 *  values: []
 * }
 */

const arrayValidator = (value, options, key, attributes, globalOptions) => {
  if (validate.isEmpty(value)) return null // Don't validate if there is no value

  const { values } = value
  if (!values) return MISSING_ITEMS

  const { validator, length } = options
  if (!validator) return INVALID_VALIDATOR

  if (length) {
    const arrayErrors = validateModel(
      { array: values },
      { array: { length } },
      { ...globalOptions }
    )
    if (arrayErrors !== true) return arrayErrors
  }

  let itemsErrors = []
  for (let i = 0; i < values.length; i += 1) {
    const itemErrors = validateModel(
      { value: values[i] },
      { value: validator },
      { ...globalOptions, ...options }
    )
    if (itemErrors !== true) itemsErrors = itemsErrors.concat(itemErrors.map(e => `${i}.${e}`))
  }

  if (itemsErrors.length) return itemsErrors

  return null
}

export default arrayValidator