import React from 'react';
import PropTypes from 'prop-types';
import _ from 'lodash';

class ImportStatus extends React.Component {
  constructor(props) {
    super(props);
    this.state = { jobs: props.jobs };
    this.pollingInterval = 5000;
    this.chunkSize = 50;
    this.links = _.isEmpty(props.links) ? [`${props.type}/:id`] : props.links;
    if (_.isEmpty(props.path)) {
      const k = `lcms_engine_import_status_admin_${this.props.type}_path`;
      this.path = Routes[k].call();
    } else {
      this.path = props.path;
    }
    this.withPdf = props.with_pdf || false;
  }

  componentDidMount() {
    this.intervalFn = setInterval(this.poll.bind(this), this.pollingInterval);
  }

  componentWillUnmount() {
    clearInterval(this.intervalFn);
  }

  poll() {
    const pendingJobs = _.compact(_.map(this.state.jobs, (job, jid) => (job.status !== 'done' ? jid : null)));
    if (pendingJobs.length > 0) {
      _.each(_.chunk(pendingJobs, this.chunkSize), jids => this.updateChunkStatus(jids));
    } else {
      clearInterval(this.intervalFn);
    }
  }

  updateChunkStatus(jids) {
    $.getJSON(this.path, {
      jids: jids,
      type: this.props.type,
      _: Date.now(), // prevent cached response
    })
      .done(res => {
        let updatedJobs = {};
        _.each(res, (val, jid) => {
          updatedJobs[jid] = _.extend(this.state.jobs[jid], { status: val.status }, val.result);
        });
        this.setState({ jobs: _.extend(this.state.jobs, updatedJobs) });
      })
      .fail(res => {
        console.warn('check content export status', res); // eslint-disable-line no-console
      });
  }

  resourceButton(job) {
    if (this.withPdf) {
      return (
        <a
          href={job.link}
          className="o-adm-materials__resource button primary u-margin-left--small u-margin-bottom--zero"
          target="_blank"
          rel="noreferrer"
        >
          <i className="far fa-file-pdf"></i>
        </a>
      );
    }

    let linkWithParams = function (route, params = {}) {
      let path = route;
      _.each(params, (v, k) => {
        path = _.replace(path, `:${k}`, v);
      });
      return path;
    };

    return _.map(this.links, (link, idx) => (
      <a
        key={`pl-${idx}`}
        href={linkWithParams(link, { id: job.model.id })}
        className="o-adm-materials__resource button primary u-margin-left--small u-margin-bottom--zero"
        target="_blank"
        rel="noreferrer"
      >
        <i className="fas fa-eye"></i>
      </a>
    ));
  }

  spinner() {
    return (
      <span className="o-adm-materials__spinner button primary u-margin-bottom--zero">
        <i className="fas fa-spin fa-spinner" />
      </span>
    );
  }

  render() {
    const waitingCount = _.filter(this.state.jobs, job => job.status !== 'done').length;
    const importedCount = _.filter(this.state.jobs, job => job.status === 'done' && job.ok).length;
    const failedCount = _.filter(this.state.jobs, job => job.status === 'done' && !job.ok).length;

    const results = _.map(this.state.jobs, (job, key) => {
      let status;
      if (job.status === 'done') {
        status = job.ok ? 'ok' : 'err';
      } else {
        status = job.status;
      }
      return (
        <li className={`o-adm-materials__result o-adm-materials__result--${status}`} key={key}>
          <div className="u-flex align-justify align-middle">
            <a href={job.link} target="_blank" className="o-adm-materials__link" rel="noreferrer">
              {job.link}
            </a>
            {job.status !== 'done' ? this.spinner() : null}
            {job.status === 'done' && job.ok ? <span>{this.resourceButton(job)}</span> : null}
          </div>
          {!_.isEmpty(job.errors) ? <p dangerouslySetInnerHTML={{ __html: _.join(job.errors, '<br/>') }}></p> : null}
          {!_.isEmpty(job.warnings) ? (
            <p
              dangerouslySetInnerHTML={{
                __html: _.join(job.warnings, '<br/>'),
              }}
            ></p>
          ) : null}
        </li>
      );
    });

    return (
      <div>
        <p className="o-adm-materials__summary">
          <span className="summary-entry">• {waitingCount} Files(s) Processing</span>
          <span className="summary-entry">{`✓ ${importedCount} File(s) ${
            this.withPdf ? 'Generated' : 'Imported'
          }`}</span>
          <span className="summary-entry">x {failedCount} File(s) Failed</span>
        </p>
        <aside className="o-adm-materials__summary--aside u-margin-bottom--small">
          After the (re){`${this.withPdf ? 'generation' : 'import'}`} the files for export are still in process of being
          generated in the background. They will appear soon after.
        </aside>
        <ul className="o-adm-materials__results">{results}</ul>
      </div>
    );
  }
}

ImportStatus.propTypes = {
  jobs: PropTypes.array,
  links: PropTypes.array,
  type: PropTypes.string,
  path: PropTypes.string,
  with_pdf: PropTypes.bool,
};

export default ImportStatus;