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import { get, includes, map, without } from 'lodash';
import {
COMMENTS_CHANGE_STATUS,
COMMENTS_DELETE,
COMMENTS_LIST_REQUEST,
COMMENTS_QUERY_UPDATE,
} from 'calypso/state/action-types';
import { getFiltersKey } from 'calypso/state/comments/ui/utils';
import { getRequestKey } from 'calypso/state/data-layer/wpcom-http/utils';
import { combineReducers, keyedReducer } from 'calypso/state/utils';
const deepUpdateComments = ( state, comments, query ) => {
const { page = 1, postId } = query;
const parent = postId || 'site';
const filter = getFiltersKey( query );
const parentObject = get( state, parent, {} );
const filterObject = get( parentObject, filter, {} );
return {
...state,
[ parent ]: {
...parentObject,
[ filter ]: {
...filterObject,
[ page ]: comments,
},
},
};
};
const sortDescending = function ( a, b ) {
if ( a < b ) {
return 1;
}
if ( a > b ) {
return -1;
}
return 0;
};
const sortAscending = function ( a, b ) {
if ( a < b ) {
return -1;
}
if ( a > b ) {
return 1;
}
return 0;
};
export const queries = ( state = {}, action ) => {
switch ( action.type ) {
case COMMENTS_CHANGE_STATUS:
case COMMENTS_DELETE: {
const query = action.refreshCommentListQuery;
if ( ! query ) {
return state;
}
const { page, postId, status } = query;
const parent = postId || 'site';
const filter = getFiltersKey( query );
const comments = get( state, [ parent, filter, page ] );
if (
COMMENTS_CHANGE_STATUS === action.type &&
'all' === status &&
includes( comments, action.commentId ) && // if the comment is not in the current view this is an undo
[ 'approved', 'unapproved' ].includes( action.status )
) {
// No-op when status changes from `approved` or `unapproved` in the All tab
return state;
}
if (
status === action.status ||
( status === 'all' && [ 'approved', 'unapproved' ].includes( action.status ) )
) {
//with undo, we should add this back to the list
const sortedList = [ action.commentId ]
.concat( comments )
.sort( query.order === 'DESC' ? sortDescending : sortAscending );
return deepUpdateComments( state, sortedList, query );
}
return deepUpdateComments( state, without( comments, action.commentId ), query );
}
case COMMENTS_QUERY_UPDATE:
return typeof get( action, 'query.page' ) === 'undefined'
? state
: deepUpdateComments( state, map( action.comments, 'ID' ), action.query );
default:
return state;
}
};
export const pendingActions = function ( state = [], action ) {
switch ( action.type ) {
case COMMENTS_CHANGE_STATUS:
case COMMENTS_DELETE: {
const key = getRequestKey( action );
if ( action.meta?.dataLayer?.trackRequest && ! state.includes( key ) ) {
return [ ...state, key ];
}
return state;
}
case COMMENTS_LIST_REQUEST:
//ignore pending requests if we're looking at a fresh view
return [];
default:
return state;
}
};
export default combineReducers( {
queries: keyedReducer( 'siteId', queries ),
pendingActions,
} );
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