-
Notifications
You must be signed in to change notification settings - Fork 4k
/
Feed.jsx
408 lines (359 loc) · 12.5 KB
/
Feed.jsx
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
import { h } from 'preact';
import { useEffect, useState } from 'preact/hooks';
import PropTypes from 'prop-types';
import { useListNavigation } from '../shared/components/useListNavigation';
import { useKeyboardShortcuts } from '../shared/components/useKeyboardShortcuts';
import { insertInArrayIf } from '../../javascript/utilities/insertInArrayIf';
/* global userData sendHapticMessage showLoginModal buttonFormData renderNewSidebarCount */
export const Feed = ({ timeFrame, renderFeed, afterRender }) => {
const { reading_list_ids = [] } = userData(); // eslint-disable-line camelcase
const [bookmarkedFeedItems, setBookmarkedFeedItems] = useState(
new Set(reading_list_ids),
);
const [pinnedItem, setPinnedItem] = useState(null);
const [imageItem, setimageItem] = useState(null);
const [feedItems, setFeedItems] = useState([]);
const [onError, setOnError] = useState(false);
useEffect(() => {
// /**
// * Retrieves data for the feed. The data will include articles and billboards.
// *
// * @param {number} [page=1] Page of feed data to retrieve
// * @param {string} The time frame of feed data to retrieve
// *
// * @returns {Promise} A promise containing the JSON response for the feed data.
// */
async function fetchFeedItems(timeFrame = '', page = 1) {
const promises = [
fetch(`/stories/feed/${timeFrame}?page=${page}`, {
method: 'GET',
headers: {
Accept: 'application/json',
'X-CSRF-Token': window.csrfToken,
'Content-Type': 'application/json',
},
credentials: 'same-origin',
}),
fetch(`/billboards/feed_first`),
fetch(`/billboards/feed_second`),
fetch(`/billboards/feed_third`),
];
const results = await Promise.allSettled(promises);
const feedItems = [];
for (const result of results) {
if (result.status === 'fulfilled') {
let resolvedValue;
if (isJSON(result)) {
resolvedValue = await result.value.json();
}
if (isHTML(result)) {
resolvedValue = await result.value.text();
}
feedItems.push(resolvedValue);
} else {
Honeybadger.notify(
`failed to fetch some items on the home feed: ${result.reason}`,
);
// we push an undefined item because we want to maintain the placement of the deconstructed array.
// it gets removed before display when we further organize.
feedItems.push(undefined);
}
}
return feedItems;
}
// /**
// * Sets the Pinned Item into state.
// *
// * @param {Object} The pinnedPost
// * @param {Object} The imagePost
// *
// * @returns {boolean} If we set the pinned post we return true else we return false
// */
function setPinnedPostItem(pinnedPost, imagePost) {
// We only show the pinned post on the "Relevant" feed (when there is no 'timeFrame' selected)
if (!pinnedPost || timeFrame !== '') return false;
// If the pinned and the image post aren't the same, (either because imagePost is missing or
// because they represent two different posts), we set the pinnedPost
if (pinnedPost.id !== imagePost?.id) {
setPinnedItem(pinnedPost);
return true;
}
return false;
}
const organizeFeedItems = async () => {
try {
if (onError) setOnError(false);
fetchFeedItems(timeFrame).then(
([
feedPosts,
feedFirstBillboard,
feedSecondBillboard,
feedThirdBillboard,
]) => {
const imagePost = getImagePost(feedPosts);
const pinnedPost = getPinnedPost(feedPosts);
const podcastPost = getPodcastEpisodes();
const hasSetPinnedPost = setPinnedPostItem(pinnedPost, imagePost);
const hasSetImagePostItem = setImagePostItem(imagePost);
const updatedFeedPosts = updateFeedPosts(
feedPosts,
imagePost,
pinnedPost,
);
// We implement the following organization for the feed:
// 1. Place the pinned post first (if the timeframe is relevant)
// 2. Place the image post next
// 3. If you follow podcasts, place the podcast episodes that are
// published today (this is an array)
// 4. Place the rest of the stories for the feed
// 5. Insert the billboards in that array accordingly
// - feed_first: Before all home page posts
// - feed_second: Between 2nd and 3rd posts in the feed
// - feed_third: Between 7th and 8th posts in the feed
const organizedFeedItems = [
...insertInArrayIf(hasSetPinnedPost, pinnedPost),
...insertInArrayIf(hasSetImagePostItem, imagePost),
...insertInArrayIf(podcastPost.length > 0, podcastPost),
...updatedFeedPosts,
];
const organizedFeedItemsWithBillboards = insertBillboardsInFeed(
organizedFeedItems,
feedFirstBillboard,
feedSecondBillboard,
feedThirdBillboard,
);
setFeedItems(organizedFeedItemsWithBillboards);
},
);
} catch {
if (!onError) setOnError(true);
}
};
organizeFeedItems();
}, [timeFrame, onError]);
useEffect(() => {
if (feedItems.length > 0) {
afterRender();
}
}, [afterRender, feedItems.length]);
// /**
// * Retrieves the imagePost which will later appear at the top of the feed,
// * with a larger main_image than any of the stories or feed elements.
// *
// * @param {Array} The original feed posts that are retrieved from the endpoint.
// *
// * @returns {Object} The first post with a main_image
// */
function getImagePost(feedPosts) {
return feedPosts.find((post) => post.main_image !== null);
}
// /**
// * Retrieves the pinnedPost which will later appear at the top the feed with a pin.
// *
// * @param {Array} The original feed posts that are retrieved from the endpoint.
// *
// * @returns {Object} The first post that has pinned set to true
// */
function getPinnedPost(feedPosts) {
return feedPosts.find((post) => post.pinned === true);
}
// /**
// * Sets the Image Item into state.
// *
// * @param {Object} The imagePost
// *
// * @returns {boolean} If we set the pinned post we return true
// */
function setImagePostItem(imagePost) {
if (imagePost) {
setimageItem(imagePost);
return true;
}
}
// /**
// * Updates the feedPosts to remove the relevant items like the pinned
// * post and the image post that will be added to the top of final organized feed
// * items separately. We do not want duplication.
// *
// * @param {Array} The original feed posts that are retrieved from the endpoint.
// * @param {Object} The imagePost
// * @param {Object} The pinnedPost
// *
// * @returns {Array} We return the new array that no longer contains the pinned post or the image post.
// */
function updateFeedPosts(feedPosts, imagePost, pinnedPost) {
let filteredFeedPost = feedPosts;
if (pinnedPost) {
filteredFeedPost = feedPosts.filter((item) => item.id !== pinnedPost.id);
}
if (imagePost) {
const imagePostIndex = filteredFeedPost.indexOf(imagePost);
filteredFeedPost.splice(imagePostIndex, 1);
}
return filteredFeedPost;
}
// /**
// * Inserts the billboards (if they exist) into the feed.
// *
// * @param {organizedFeedItems} The partially organized feed items.
// * @param {String} feedFirstBillboard is the feed_first billboard retrieved from an endpoint.
// * @param {String} feedSecondBillboard is the feed_second billboard retrieved from an endpoint.
// * @param {String} feedThirdBillboard is the feed_third billboard retrieved from an endpoint.
// *
// * @returns {Array} We return the array containing the billboards slotted into the correct positions.
// */
function insertBillboardsInFeed(
organizedFeedItems,
feedFirstBillboard,
feedSecondBillboard,
feedThirdBillboard,
) {
if (
organizedFeedItems.length >= 9 &&
feedThirdBillboard &&
!isDismissed(feedThirdBillboard)
) {
organizedFeedItems.splice(7, 0, feedThirdBillboard);
}
if (
organizedFeedItems.length >= 3 &&
feedSecondBillboard &&
!isDismissed(feedSecondBillboard)
) {
organizedFeedItems.splice(2, 0, feedSecondBillboard);
}
if (
organizedFeedItems.length >= 0 &&
feedFirstBillboard &&
!isDismissed(feedFirstBillboard)
) {
organizedFeedItems.splice(0, 0, feedFirstBillboard);
}
return organizedFeedItems;
}
function isJSON(result) {
return result.value.headers
?.get('content-type')
?.includes('application/json');
}
function isHTML(result) {
return result.value.headers?.get('content-type')?.includes('text/html');
}
function isDismissed(bb) {
const parser = new DOMParser();
const doc = parser.parseFromString(bb, 'text/html');
const element = doc.querySelector('.crayons-story');
const dismissalSku = element?.dataset?.dismissalSku;
if (localStorage && dismissalSku && dismissalSku.length > 0) {
const skuArray =
JSON.parse(localStorage.getItem('dismissal_skus_triggered')) || [];
if (skuArray.includes(dismissalSku)) {
return true;
}
} else {
return false;
}
}
// /**
// * Retrieves the podcasts for the feed from the user data and the `followed-podcasts`
// * div item.
// *
// * @returns {Object} An Object containing today's podcast episodes for the podcasts found in followed_podcast_ids.
// */
function getPodcastEpisodes() {
const el = document.getElementById('followed-podcasts');
const user = userData(); // Global
const episodes = [];
if (
user &&
user.followed_podcast_ids &&
user.followed_podcast_ids.length > 0
) {
const data = JSON.parse(el.dataset.episodes);
data.forEach((episode) => {
if (user.followed_podcast_ids.indexOf(episode.podcast.id) > -1) {
episodes.push(episode);
}
});
}
return episodes;
}
/**
* Dispatches a click event to bookmark/unbookmark an article and sets the ID's of the
* updated bookmark feed items.
*
* @param {Event} event
*/
async function bookmarkClick(event) {
// The assumption is that the user is logged on at this point.
const { userStatus } = document.body;
event.preventDefault();
sendHapticMessage('medium');
if (userStatus === 'logged-out') {
showLoginModal({
referring_source: 'post_index_toolbar',
trigger: 'readinglist',
});
return;
}
const { currentTarget: button } = event;
const data = buttonFormData(button);
const csrfToken = await getCsrfToken();
if (!csrfToken) return;
const fetchCallback = sendFetch('reaction-creation', data);
const response = await fetchCallback(csrfToken);
if (response.status === 200) {
const json = await response.json();
const articleId = Number(button.dataset.reactableId);
const { result } = json;
const updatedBookmarkedFeedItems = new Set([
...bookmarkedFeedItems.values(),
]);
if (result === 'create') {
updatedBookmarkedFeedItems.add(articleId);
}
if (result === 'destroy') {
updatedBookmarkedFeedItems.delete(articleId);
}
renderNewSidebarCount(button, json);
setBookmarkedFeedItems(updatedBookmarkedFeedItems);
}
}
useListNavigation(
'article.crayons-story',
'a.crayons-story__hidden-navigation-link',
'div.paged-stories',
);
useKeyboardShortcuts({
b: (event) => {
const article = event.target?.closest('article.crayons-story');
if (!article) return;
article.querySelector('button[id^=article-save-button]')?.click();
},
});
return (
<div id="rendered-article-feed">
{onError ? (
<div class="crayons-notice crayons-notice--danger">
There was a problem fetching your feed.
</div>
) : (
renderFeed({
pinnedItem,
imageItem,
feedItems,
bookmarkedFeedItems,
bookmarkClick,
})
)}
</div>
);
};
Feed.defaultProps = {
timeFrame: '',
};
Feed.propTypes = {
timeFrame: PropTypes.string,
renderFeed: PropTypes.func.isRequired,
};
Feed.displayName = 'Feed';