import React from 'react';
import { ClusterName, CleanupPolicy, TopicFormData, TopicName } from 'redux/interfaces';
import Breadcrumb from 'components/common/Breadcrumb/Breadcrumb';
import { clusterTopicsPath } from 'lib/paths';
import { useForm, ErrorMessage } from 'react-hook-form';
import {
  TOPIC_NAME_VALIDATION_PATTERN,
  MILLISECONDS_IN_DAY,
  BYTES_IN_GB,
} from 'lib/constants';

interface Props {
  clusterName: ClusterName;
  isTopicCreated: boolean;
  createTopic: (clusterName: ClusterName, form: TopicFormData) => void;
  redirectToTopicPath: (clusterName: ClusterName, topicName: TopicName) => void;
  resetUploadedState: () => void;
}

const New: React.FC<Props> = ({
                                clusterName,
                                isTopicCreated,
                                createTopic,
                                redirectToTopicPath,
                                resetUploadedState
                              }) => {
  const {register, handleSubmit, errors, getValues} = useForm<TopicFormData>();
  const [isSubmitting, setIsSubmitting] = React.useState<boolean>(false);

  React.useEffect(
    () => {
      if (isSubmitting && isTopicCreated) {
        const {name} = getValues();
        redirectToTopicPath(clusterName, name);
      }
    },
    [isSubmitting, isTopicCreated, redirectToTopicPath, clusterName, getValues],
  );

  const onSubmit = async (data: TopicFormData) => {
    //TODO: need to fix loader. After success loading the first time, we won't wait for creation any more, because state is
    //loaded, and we will try to get entity immediately after pressing the button, and we will receive null
    //going to object page on the second creation. Resetting loaded state is workaround, need to tweak loader logic
    resetUploadedState();
    setIsSubmitting(true);
    createTopic(clusterName, data);
  };

  return (
    <div className="section">
      <div className="level">
        <div className="level-item level-left">
          <Breadcrumb links={[
            {href: clusterTopicsPath(clusterName), label: 'All Topics'},
          ]}>
            New Topic
          </Breadcrumb>
        </div>
      </div>

      <div className="box">
        <form onSubmit={handleSubmit(onSubmit)}>
          <div className="columns">
            <div className="column is-three-quarters">
              <label className="label">
                Topic Name *
              </label>
              <input
                className="input"
                placeholder="Topic Name"
                ref={register({
                  required: 'Topic Name is required.',
                  pattern: {
                    value: TOPIC_NAME_VALIDATION_PATTERN,
                    message: 'Only alphanumeric, _, -, and . allowed',
                  },
                })}
                name="name"
                autoComplete="off"
                disabled={isSubmitting}
              />
              <p className="help is-danger">
                <ErrorMessage errors={errors} name="name"/>
              </p>
            </div>

            <div className="column">
              <label className="label">
                Number of partitions *
              </label>
              <input
                className="input"
                type="number"
                placeholder="Number of partitions"
                defaultValue="1"
                ref={register({required: 'Number of partitions is required.'})}
                name="partitions"
                disabled={isSubmitting}
              />
              <p className="help is-danger">
                <ErrorMessage errors={errors} name="partitions"/>
              </p>
            </div>
          </div>

          <div className="columns">
            <div className="column">
              <label className="label">
                Replication Factor *
              </label>
              <input
                className="input"
                type="number"
                placeholder="Replication Factor"
                defaultValue="1"
                ref={register({required: 'Replication Factor is required.'})}
                name="replicationFactor"
                disabled={isSubmitting}
              />
              <p className="help is-danger">
                <ErrorMessage errors={errors} name="replicationFactor"/>
              </p>
            </div>

            <div className="column">
              <label className="label">
                Min In Sync Replicas *
              </label>
              <input
                className="input"
                type="number"
                placeholder="Replication Factor"
                defaultValue="1"
                ref={register({required: 'Min In Sync Replicas is required.'})}
                name="minInSyncReplicas"
                disabled={isSubmitting}
              />
              <p className="help is-danger">
                <ErrorMessage errors={errors} name="minInSyncReplicas"/>
              </p>
            </div>
          </div>

          <div className="columns">
            <div className="column is-one-third">
              <label className="label">
                Cleanup policy
              </label>
              <div className="select is-block">
                <select
                  defaultValue={CleanupPolicy.Delete}
                  name="cleanupPolicy"
                  ref={register}
                  disabled={isSubmitting}
                >
                  <option value={CleanupPolicy.Delete}>
                    Delete
                  </option>
                  <option value={CleanupPolicy.Compact}>
                    Compact
                  </option>
                </select>
              </div>
            </div>

            <div className="column is-one-third">
              <label className="label">
                Time to retain data
              </label>
              <div className="select is-block">
                <select
                  defaultValue={MILLISECONDS_IN_DAY * 7}
                  name="retentionMs"
                  ref={register}
                  disabled={isSubmitting}
                >
                  <option value={MILLISECONDS_IN_DAY / 2}>
                    12 hours
                  </option>
                  <option value={MILLISECONDS_IN_DAY}>
                    1 day
                  </option>
                  <option value={MILLISECONDS_IN_DAY * 2}>
                    2 days
                  </option>
                  <option value={MILLISECONDS_IN_DAY * 7}>
                    1 week
                  </option>
                  <option value={MILLISECONDS_IN_DAY * 7 * 4}>
                    4 weeks
                  </option>
                </select>
              </div>
            </div>

            <div className="column is-one-third">
              <label className="label">
                Max size on disk in GB
              </label>
              <div className="select is-block">
                <select
                  defaultValue={-1}
                  name="retentionBytes"
                  ref={register}
                  disabled={isSubmitting}
                >
                  <option value={-1}>
                    Not Set
                  </option>
                  <option value={BYTES_IN_GB}>
                    1 GB
                  </option>
                  <option value={BYTES_IN_GB * 10}>
                    10 GB
                  </option>
                  <option value={BYTES_IN_GB * 20}>
                    20 GB
                  </option>
                  <option value={BYTES_IN_GB * 50}>
                    50 GB
                  </option>
                </select>
              </div>
            </div>
          </div>

          <div className="columns">
            <div className="column">
              <label className="label">
                Maximum message size in bytes *
              </label>
              <input
                className="input"
                type="number"
                defaultValue="1000012"
                ref={register({required: 'Maximum message size in bytes is required'})}
                name="maxMessageBytes"
                disabled={isSubmitting}
              />
              <p className="help is-danger">
                <ErrorMessage errors={errors} name="maxMessageBytes"/>
              </p>
            </div>
          </div>

          <input type="submit" className="button is-primary" disabled={isSubmitting}/>
        </form>
      </div>
    </div>
  );
};

export default New;