RobDWaller/fableau

'use strict'

/**
 * Simple wrapper for making Ajax requests
 *
 * @author Rob Waller <rdwaller1984@googlemail.com>
 */
class Ajax {
  /**
   * Make an AJAX request based on a URL string
   *
   * @param string url
   * @return Promise
   */
  getData (url) {
    let data = new Promise((resolve, reject) => {
      /* global XMLHttpRequest */
      var request = new XMLHttpRequest()

      request.onreadystatechange = function () {
        if (request.readyState === XMLHttpRequest.DONE) {
          if (request.status === 200) {
            resolve(request.responseText)
          }

          reject(request.responseText)
        }
      }

      request.open('GET', url, true)
      request.send()
    }).catch(e => {
      /* global tableau */
      tableau.abortWithError(e)
    })

    return data.then(function (result) {
      return JSON.parse(result)
    })
  }
}

export default Ajax