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import { translate } from 'i18n-calypso';
import {
COMMENTS_DELETE,
COMMENTS_RECEIVE,
COMMENTS_COUNT_INCREMENT,
COMMENTS_WRITE_ERROR,
} from 'calypso/state/action-types';
import { requestCommentsList } from 'calypso/state/comments/actions';
import { bypassDataLayer } from 'calypso/state/data-layer/utils';
import { http } from 'calypso/state/data-layer/wpcom-http/actions';
import { errorNotice } from 'calypso/state/notices/actions';
import { getSitePost } from 'calypso/state/posts/selectors';
/**
* Creates a placeholder comment for a given text and postId
* We need placehodler id to be unique in the context of siteId, postId for that specific user,
* date milliseconds will do for that purpose.
* @param {string} commentText text of the comment
* @param {number} postId post identifier
* @param {number|undefined} parentCommentId parent comment identifier
* @returns {Object} comment placeholder
*/
export const createPlaceholderComment = ( commentText, postId, parentCommentId ) => ( {
ID: 'placeholder-' + new Date().getTime(),
parent: parentCommentId ? { ID: parentCommentId } : false,
date: new Date().toISOString(),
content: commentText,
status: 'pending',
type: 'comment',
post: { ID: postId },
isPlaceholder: true,
placeholderState: 'PENDING',
} );
/**
* Creates a placeholder comment for a given text and postId
* We need placeholder id to be unique in the context of siteId and postId for that specific user,
* date milliseconds will do for that purpose.
* @param {Object} action redux action
* @param {string} path comments resource path
* @returns {Array} actions
*/
export const dispatchNewCommentRequest = ( action, path ) => {
const { siteId, postId, parentCommentId, commentText } = action;
const placeholder = createPlaceholderComment( commentText, postId, parentCommentId );
// Insert a placeholder
return [
{
type: COMMENTS_RECEIVE,
siteId,
postId,
comments: [ placeholder ],
skipSort: !! parentCommentId,
},
http( {
method: 'POST',
apiVersion: '1.1',
path,
body: {
content: commentText,
},
onSuccess: {
...action,
placeholderId: placeholder.ID,
},
onFailure: { ...action, placeholderId: placeholder.ID },
} ),
];
};
/**
* updates the placeholder comments with server values
* @param {Function} dispatch redux dispatcher
* @param {Object} comment updated comment from the request response
* @returns {Function} thunk
*/
export const updatePlaceholderComment = (
{ siteId, postId, parentCommentId, placeholderId, refreshCommentListQuery },
comment
) => {
const actions = [
// remove placeholder from state
bypassDataLayer( { type: COMMENTS_DELETE, siteId, postId, commentId: placeholderId } ),
// add new comment to state with updated values from server
{
type: COMMENTS_RECEIVE,
siteId,
postId,
comments: [ comment ],
skipSort: !! parentCommentId,
meta: {
comment: {
context: 'add', //adds a hint for the counts reducer.
},
},
},
// increment comments count
{ type: COMMENTS_COUNT_INCREMENT, siteId, postId },
];
if ( refreshCommentListQuery ) {
actions.push( requestCommentsList( refreshCommentListQuery ) );
}
return actions;
};
/**
* dispatches a error notice if creating a new comment request failed
* @param {Object} action redux action
* @param {number} action.siteId
* @param {number} action.postId
* @param {number} action.parentCommentId
* @param {number} action.placeholderId
* @param {Object} rawError plain error object
* @returns {Function} thunk
*/
export const handleWriteCommentFailure =
( { siteId, postId, parentCommentId, placeholderId }, rawError ) =>
( dispatch, getState ) => {
// Dispatch error notice
const post = getSitePost( getState(), siteId, postId );
const postTitle = post && post.title && post.title.trim().slice( 0, 20 ).trim().concat( '…' );
const error = postTitle
? translate( 'Could not add a reply to “%(postTitle)s”', { args: { postTitle } } )
: translate( 'Could not add a reply to this post' );
// Dispatch an error so we can record the failed comment placeholder in state
dispatch( {
type: COMMENTS_WRITE_ERROR,
siteId,
postId,
commentId: placeholderId,
parentCommentId,
error,
errorType: rawError && rawError.error,
} );
dispatch( errorNotice( error, { duration: 5000 } ) );
};
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