signal-desktop/ts/state/smart/TimelineLoadingRow.tsx

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import { connect } from 'react-redux';
import { mapDispatchToProps } from '../actions';
import { isNumber } from 'lodash';
import {
STATE_ENUM,
TimelineLoadingRow,
} from '../../components/conversation/TimelineLoadingRow';
import { LOAD_COUNTDOWN } from '../../components/conversation/Timeline';
import { StateType } from '../reducer';
import { getIntl } from '../selectors/user';
import { getConversationMessagesSelector } from '../selectors/conversations';
type ExternalProps = {
id: string;
};
const mapStateToProps = (state: StateType, props: ExternalProps) => {
const { id } = props;
const conversation = getConversationMessagesSelector(state)(id);
if (!conversation) {
throw new Error(`Did not find conversation ${id} in state!`);
}
const { isLoadingMessages, loadCountdownStart } = conversation;
const loadingState: STATE_ENUM = isLoadingMessages
? 'loading'
: isNumber(loadCountdownStart)
? 'countdown'
: 'idle';
const duration = loadingState === 'countdown' ? LOAD_COUNTDOWN : undefined;
const expiresAt =
loadingState === 'countdown' && loadCountdownStart
? loadCountdownStart + LOAD_COUNTDOWN
: undefined;
return {
state: loadingState,
duration,
expiresAt,
i18n: getIntl(state),
};
};
const smart = connect(mapStateToProps, mapDispatchToProps);
export const SmartTimelineLoadingRow = smart(TimelineLoadingRow);