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const EventEmitter = require( 'events' ).EventEmitter;
const url = require( 'url' );
const WPNotificationsAPI = require( '../../../lib/notifications/api' );
// Parses raw note data from the API into a notification for display,
// and exposes handlers for actions performed by the user.
class WPNotificationsViewModel extends EventEmitter {
constructor() {
super();
WPNotificationsAPI.on( 'note', ( note ) => {
const notification = parseNote( note );
this.emit( 'notification', notification );
} );
}
didClickNotification( noteId, callback ) {
WPNotificationsAPI.markNoteAsRead( noteId, callback );
}
}
function parseNote( note ) {
const id = note.id;
const title = getSiteTitle( note );
const subtitle = note.subject.length > 1 ? note.subject[ 0 ].text : '';
const body = note.subject.length > 1 ? note.subject[ 1 ].text : note.subject[ 0 ].text;
const type = note.type;
const siteId = note.meta.ids.site;
const postId = note.meta.ids.post;
const commentId = note.meta.ids.comment;
const fallbackUrl = note.url ? note.url : null;
const isApproved = getApprovedStatus( note );
let navigate = null;
switch ( type ) {
case 'automattcher':
case 'post':
navigate = `/reader/blogs/${ siteId }/posts/${ postId }`;
break;
case 'comment':
{
// If the note is approved, construct the URL to navigate to.
if ( isApproved ) {
navigate = `/reader/blogs/${ siteId }/posts/${ postId }#comment-${ commentId }`;
}
}
break;
case 'comment_like':
navigate = `/reader/blogs/${ siteId }/posts/${ postId }#comment-${ commentId }`;
break;
case 'site':
navigate = `/reader/blogs/${ siteId }`;
break;
default:
navigate = null;
}
if ( ! navigate ) {
navigate = fallbackUrl;
}
return {
id,
body,
type,
title,
subtitle,
navigate,
};
}
function getSiteTitle( note ) {
// TODO: Ideally we should augment the note data from the API with
// the site's human-readable name. Using the note's URL for now.
return '' || ( note.url ? url.parse( note.url ).host : note.title );
}
function getApprovedStatus( note ) {
if ( ! note.body || ! Array.isArray( note.body ) ) {
return false;
}
if ( note.body.length < 1 ) {
return false;
}
// Unfortunately it appears that the exact location within the note body array
// containing action attributes may not be consistent between note types (and
// has in fact changed since this code was originally written).
//
// Inspect all elements in the body array to be safe.
let actions = null;
for ( let i = 0; i < note.body.length; i++ ) {
actions = note.body[ i ].actions;
if ( actions ) {
break;
}
}
if ( ! actions ) {
return false;
}
const approveComment = actions[ 'approve-comment' ];
if ( approveComment === undefined ) {
return false;
}
return approveComment === true;
}
module.exports = new WPNotificationsViewModel();
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