import React, { useState, useEffect, useMemo } from 'react';
import { usePrevious } from '@plone/volto/helpers';
import { Form, FormGroup, Label } from 'design-react-kit';
import { defineMessages } from 'react-intl';
import {
  FormHeader,
  getFeedbackQuestions,
  getFeedbackThreshold,
  getTranslatedQuestion,
} from 'volto-feedback';

const messages = defineMessages({
  header_positive: {
    id: 'feedback_answers_header_positive',
    defaultMessage: 'Which were the aspects you liked the most?',
  },
  header_negative: {
    id: 'feedback_answers_header_negative',
    defaultMessage: 'Where did you encounter the biggest problems?',
  },
});

const AnswersStep = ({
  updateFormData,
  userFeedback,
  step,
  totalSteps,
  getFormFieldValue,
  intl,
}) => {
  const initializeState = (newState) => setState(newState);
  const threshold = useMemo(() => getFeedbackThreshold(), []);
  const selectedAnswer = getFormFieldValue('answer');
  const getInitialState = () => {
    if (userFeedback === null) return [];
    return getFeedbackQuestions(userFeedback);
  };

  const [state, setState] = useState(getInitialState());
  const prevFeedback = usePrevious(userFeedback);
  useEffect(() => {
    if (userFeedback !== null) {
      if (
        (prevFeedback &&
          prevFeedback <= threshold &&
          userFeedback >= threshold) ||
        (prevFeedback && prevFeedback >= threshold && userFeedback <= threshold)
      ) {
        updateFormData('answer', null);
      }
      if (prevFeedback !== userFeedback) initializeState(getInitialState());
    }
    // eslint-disable-next-line react-hooks/exhaustive-deps
  }, [userFeedback]);

  const handleAnswerChange = (e) => {
    updateFormData('answer', e.target.value);
  };

  return (
    <>
      <fieldset
        id="vf-more-positive"
        className="answers-step"
        data-step={step}
        aria-expanded={
          userFeedback !== null && userFeedback > threshold && step === 0
        }
        aria-hidden={
          userFeedback === null || userFeedback < threshold || step !== 0
        }
        data-element={'feedback-rating-positive'}
      >
        <FormHeader
          title={intl.formatMessage(messages.header_positive)}
          step={step + 1}
          totalSteps={totalSteps}
          className={'answers-header'}
          hidden={
            userFeedback === null || userFeedback < threshold || step !== 0
          }
        />

        <Form className="answers-form">
          {state?.map((s, i) => (
            <FormGroup
              check
              key={'positive-' + s}
              className="border-bottom border-light mb-4"
            >
              <input
                name="answer-input-positive"
                id={'positive-' + s}
                type="radio"
                checked={s === selectedAnswer}
                value={s}
                onChange={handleAnswerChange}
                autocomplete="off"
              />
              <Label
                for={'positive-' + s}
                check
                className="mb-4"
                data-element="feedback-rating-answer"
              >
                {getTranslatedQuestion(intl, s)}
              </Label>
            </FormGroup>
          ))}
        </Form>
      </fieldset>
      <fieldset
        id="vf-more-negative"
        className="answers-step"
        data-step={step}
        aria-expanded={
          userFeedback !== null && userFeedback < threshold && step === 0
        }
        aria-hidden={
          userFeedback === null || userFeedback > threshold || step !== 0
        }
        data-element={'feedback-rating-negative'}
      >
        <FormHeader
          title={intl.formatMessage(messages.header_negative)}
          step={step + 1}
          totalSteps={totalSteps}
          className={'answers-header'}
          hidden={
            userFeedback === null || userFeedback > threshold || step !== 0
          }
        />

        <Form className="answers-form">
          {state?.map((s, i) => (
            <FormGroup
              check
              key={'negative-' + s}
              className="border-bottom border-light mb-4"
            >
              <input
                name="answer-input-negative"
                id={'negative-' + s}
                type="radio"
                checked={s === selectedAnswer}
                value={s}
                onChange={handleAnswerChange}
              />
              <Label
                for={'negative-' + s}
                check
                className="mb-4"
                data-element="feedback-rating-answer"
              >
                {getTranslatedQuestion(intl, s)}
              </Label>
            </FormGroup>
          ))}
        </Form>
      </fieldset>
    </>
  );
};

export default AnswersStep;