content: import { EmptyObject } from 'src/util';
  
  import map from 'lodash/map';
  import groupBy from 'lodash/groupBy';
  import pickBy from 'lodash/pickBy';
  import flatten from 'lodash/flatten';
  import isEmpty from 'lodash/isEmpty';
  import size from 'lodash/size';
  
  import React from 'react';
  import { dataBind } from 'dbdi/react';
  
  import {
    ListGroup, ListGroupItem, Panel, Well, Alert
  } from 'react-bootstrap';
  
  
  import UserList from 'src/views/components/users/UserList';
  
  import LoadIndicator from 'src/views/components/util/LoadIndicator';
  
  const CohortList = dataBind({})(function CohortList(
    { },
    { lookupLocalized },
    { cohortList, usersPublic, cohortList_isLoaded, usersPublic_isLoaded }
  ) {
    if (!cohortList_isLoaded | !usersPublic_isLoaded) {
      return <LoadIndicator />;
    }
  
    const uids = Object.keys(usersPublic || EmptyObject);
    const uidsByCohortId = groupBy(uids, (uid) => usersPublic[uid].cohortId);
    let unassignedUids = pickBy(uidsByCohortId, (uids, cohortId) => !cohortId || !cohortList[cohortId]);
    unassignedUids = flatten(Object.values(unassignedUids));
  
    return (<div>
      {map(cohortList, (cohort, cohortId) => {
        const desc = lookupLocalized({ obj: cohort, prop: 'description' });
        const uidsOfCohort = uidsByCohortId[cohortId];
        return (
          <Panel key={cohortId} bsStyle="info">
            <Panel.Heading>
              {lookupLocalized({ obj: cohort, prop: 'name' })}
              ({size(uidsOfCohort)})
            </Panel.Heading>
            <Panel.Body>
              {desc && <Well>
                {desc}
              </Well>}
              {!isEmpty(uidsOfCohort) && <UserList uids={uidsOfCohort} /> || (
                <Alert bsStyle="warning">this cohort is empty</Alert>
              )}
            </Panel.Body>
          </Panel>
        );
      })}
      {!isEmpty(unassignedUids) &&
        (<Panel bsStyle="danger">
          <Panel.Heading>Lost Users ({size(unassignedUids)})</Panel.Heading>
          <Panel.Body>
            <UserList uids={unassignedUids} />
          </Panel.Body>
        </Panel>) ||
        (
          <Alert bsStyle="success">no lost users!</Alert>
        )
      }
    </div>);
  });
  
  export default CohortList;