Admin: add UserIndex to view a list of registered users

app/soapbox/features/admin/user_index.js

@@ -0,0 +1,71 @@
+import React from 'react';
+import { connect } from 'react-redux';
+import ImmutablePureComponent from 'react-immutable-pure-component';
+import PropTypes from 'prop-types';
+import ImmutablePropTypes from 'react-immutable-proptypes';
+import { debounce } from 'lodash';
+import LoadingIndicator from 'soapbox/components/loading_indicator';
+import { fetchUsers } from 'soapbox/actions/admin';
+import { FormattedMessage } from 'react-intl';
+import AccountContainer from 'soapbox/containers/account_container';
+import Column from 'soapbox/features/ui/components/column';
+import ScrollableList from 'soapbox/components/scrollable_list';
+
+const mapStateToProps = state => {
+  return {
+    accountIds: state.getIn(['admin', 'usersList']),
+    hasMore: false,
+  };
+};
+
+export default @connect(mapStateToProps)
+class UserIndex extends ImmutablePureComponent {
+
+  static propTypes = {
+    params: PropTypes.object.isRequired,
+    dispatch: PropTypes.func.isRequired,
+    accountIds: ImmutablePropTypes.orderedSet,
+    hasMore: PropTypes.bool,
+    diffCount: PropTypes.number,
+    isAccount: PropTypes.bool,
+    unavailable: PropTypes.bool,
+  };
+
+  componentDidMount() {
+    this.props.dispatch(fetchUsers({ filters: 'local,active' }));
+  }
+
+  handleLoadMore = debounce(() => {
+    // if (this.props.accountId && this.props.accountId !== -1) {
+    //   this.props.dispatch(expandFollowers(this.props.accountId));
+    // }
+  }, 300, { leading: true });
+
+  render() {
+    const { accountIds, hasMore } = this.props;
+
+    if (!accountIds) {
+      return (
+        <Column>
+          <LoadingIndicator />
+        </Column>
+      );
+    }
+
+    return (
+      <Column>
+        <ScrollableList
+          scrollKey='user-index'
+          hasMore={hasMore}
+          onLoadMore={this.handleLoadMore}
+          emptyMessage={<FormattedMessage id='admin.user_index.empty' defaultMessage='No users found.' />}
+        >
+          {accountIds.map(id =>
+            <AccountContainer key={id} id={id} withNote={false} />,
+          )}
+        </ScrollableList>
+      </Column>
+    );
+  }
+
+}