export const parseAPIResponse = response =>
	new Promise(resolve => resolve(response.text()))
		.catch(err =>
			// eslint-disable-next-line prefer-promise-reject-errors
			Promise.reject({
				type: 'NetworkError',
				status: response.status,
				message: err,
			}))
		.then((responseBody) => {
			// Attempt to parse JSON
			try {
				const parsedJSON = JSON.parse(responseBody);
				if (response.ok) return parsedJSON;
				if (response.status >= 500) {
					// eslint-disable-next-line prefer-promise-reject-errors
					return Promise.reject({
						type: 'ServerError',
						status: response.status,
						body: parsedJSON,
					});
				}
				if (response.status <= 501) {
					// eslint-disable-next-line prefer-promise-reject-errors
					return Promise.reject({
						type: 'ApplicationError',
						status: response.status,
						body: parsedJSON,
					});
				}
			} catch (e) {
				// We should never get these unless response is mangled
				// Or API is not properly implemented
				// eslint-disable-next-line prefer-promise-reject-errors
				return Promise.reject({
					type: 'InvalidJSON',
					status: response.status,
					body: responseBody,
				});
			}
		});



handleSubmit(e) {
  e.preventDefault()

  const body = {
    email: this.state.email,
  }

  let resStatus = 0
  fetch(Config.REST_API_URL + 'users/registration-request', {
    method: 'POST',
    headers: {
      Accept: 'application/json',
      'Content-Type': 'application/json',
    },
    body: JSON.stringify(body),
  })
  .then(res => {
    resStatus = res.status
    return res.json()
  })
  .then(res => {
    switch (resStatus) {
      case 201:
        console.log('success')
        break
      case 400:
        if (res.code === 'ValidationFailed') {
          // My custom error messages from the API.
          console.log(res.fieldMessages)
        } else {
          console.log('this is a client (probably invalid JSON) error, but also might be a server error (bad JSON parsing/validation)')
        }
        break
      case 500:
        console.log('server error, try again')
        break
      default:
        console.log('unhandled')
        break
    }
  })
  .catch(err => {
    console.error(err)
  })
}