Thread viewer for Bluesky
mackuba.eu
1class LikeStatsPage {
2
3 /** @type {number | undefined} */
4 scanStartTime;
5
6 constructor() {
7 this.pageElement = $id('like_stats_page');
8
9 this.rangeInput = $(this.pageElement.querySelector('input[type="range"]'), HTMLInputElement);
10 this.submitButton = $(this.pageElement.querySelector('input[type="submit"]'), HTMLInputElement);
11 this.progressBar = $(this.pageElement.querySelector('input[type=submit] + progress'), HTMLProgressElement);
12
13 this.receivedTable = $(this.pageElement.querySelector('.received-likes'), HTMLTableElement);
14 this.givenTable = $(this.pageElement.querySelector('.given-likes'), HTMLTableElement);
15
16 this.appView = new BlueskyAPI('public.api.bsky.app', false);
17
18 this.setupEvents();
19
20 this.progressPosts = 0;
21 this.progressLikeRecords = 0;
22 this.progressPostLikes = 0;
23 }
24
25 setupEvents() {
26 $(this.pageElement.querySelector('form')).addEventListener('submit', (e) => {
27 e.preventDefault();
28
29 if (!this.scanStartTime) {
30 this.findLikes();
31 } else {
32 this.stopScan();
33 }
34 });
35
36 this.rangeInput.addEventListener('input', (e) => {
37 let days = parseInt(this.rangeInput.value, 10);
38 let label = $(this.pageElement.querySelector('input[type=range] + label'));
39 label.innerText = (days == 1) ? '1 day' : `${days} days`;
40 });
41 }
42
43 /** @returns {number} */
44
45 selectedDaysRange() {
46 return parseInt(this.rangeInput.value, 10);
47 }
48
49 show() {
50 this.pageElement.style.display = 'block';
51 }
52
53 /** @returns {Promise<void>} */
54
55 async findLikes() {
56 this.submitButton.value = 'Cancel';
57
58 let requestedDays = this.selectedDaysRange();
59
60 this.resetProgress();
61 this.progressBar.style.display = 'inline';
62
63 let startTime = new Date().getTime();
64 this.scanStartTime = startTime;
65
66 this.receivedTable.style.display = 'none';
67 this.givenTable.style.display = 'none';
68
69 let fetchGivenLikes = this.fetchGivenLikes(requestedDays);
70
71 let receivedLikes = await this.fetchReceivedLikes(requestedDays);
72 let receivedStats = this.sumUpReceivedLikes(receivedLikes);
73 let topReceived = this.getTopEntries(receivedStats);
74
75 await this.renderResults(topReceived, this.receivedTable);
76
77 let givenLikes = await fetchGivenLikes;
78 let givenStats = this.sumUpGivenLikes(givenLikes);
79 let topGiven = this.getTopEntries(givenStats);
80
81 let profileInfo = await appView.getRequest('app.bsky.actor.getProfiles', { actors: topGiven.map(x => x.did) });
82
83 for (let profile of profileInfo.profiles) {
84 let user = /** @type {LikeStat} */ (topGiven.find(x => x.did == profile.did));
85 user.handle = profile.handle;
86 user.avatar = profile.avatar;
87 }
88
89 await this.renderResults(topGiven, this.givenTable);
90
91 this.receivedTable.style.display = 'table';
92 this.givenTable.style.display = 'table';
93
94 this.submitButton.value = 'Start scan';
95 this.progressBar.style.display = 'none';
96 this.scanStartTime = undefined;
97 }
98
99 /** @param {number} requestedDays, @returns {Promise<json[]>} */
100
101 async fetchGivenLikes(requestedDays) {
102 let startTime = /** @type {number} */ (this.scanStartTime);
103
104 return await accountAPI.fetchAll('com.atproto.repo.listRecords', {
105 params: {
106 repo: accountAPI.user.did,
107 collection: 'app.bsky.feed.like',
108 limit: 100
109 },
110 field: 'records',
111 breakWhen: (x) => Date.parse(x['value']['createdAt']) < startTime - 86400 * requestedDays * 1000,
112 onPageLoad: (data) => {
113 let last = data.at(-1);
114
115 if (!last) { return }
116
117 let lastDate = Date.parse(last.value.createdAt);
118 let daysBack = (startTime - lastDate) / 86400 / 1000;
119
120 this.updateProgress({ likeRecords: Math.min(1.0, daysBack / requestedDays) });
121 }
122 });
123 }
124
125 /** @param {number} requestedDays, @returns {Promise<json[]>} */
126
127 async fetchReceivedLikes(requestedDays) {
128 let startTime = /** @type {number} */ (this.scanStartTime);
129
130 let myPosts = await this.appView.loadUserTimeline(accountAPI.user.did, requestedDays, {
131 filter: 'posts_with_replies',
132 onPageLoad: (data) => {
133 let last = data.at(-1);
134
135 if (!last) { return }
136
137 let lastDate = feedPostTime(last);
138 let daysBack = (startTime - lastDate) / 86400 / 1000;
139
140 this.updateProgress({ posts: Math.min(1.0, daysBack / requestedDays) });
141 }
142 });
143
144 let likedPosts = myPosts.filter(x => !x['reason'] && x['post']['likeCount'] > 0);
145
146 let results = [];
147
148 for (let i = 0; i < likedPosts.length; i += 10) {
149 let batch = likedPosts.slice(i, i + 10);
150 this.updateProgress({ postLikes: i / likedPosts.length });
151
152 let fetchBatch = batch.map(x => {
153 return this.appView.fetchAll('app.bsky.feed.getLikes', {
154 params: {
155 uri: x['post']['uri'],
156 limit: 100
157 },
158 field: 'likes'
159 });
160 });
161
162 let batchResults = await Promise.all(fetchBatch);
163 results = results.concat(batchResults);
164 }
165
166 this.updateProgress({ postLikes: 1.0 });
167
168 return results.flat();
169 }
170
171 /**
172 * @typedef {{ handle?: string, did?: string, avatar?: string, count: number }} LikeStat
173 * @typedef {Record<string, LikeStat>} LikeStatHash
174 */
175
176 /** @param {json[]} likes, @returns {LikeStatHash} */
177
178 sumUpReceivedLikes(likes) {
179 /** @type {LikeStatHash} */
180 let stats = {};
181
182 for (let like of likes) {
183 let handle = like.actor.handle;
184
185 if (!stats[handle]) {
186 stats[handle] = { handle: handle, count: 0, avatar: like.actor.avatar };
187 }
188
189 stats[handle].count += 1;
190 }
191
192 return stats;
193 }
194
195 /** @param {json[]} likes, @returns {LikeStatHash} */
196
197 sumUpGivenLikes(likes) {
198 /** @type {LikeStatHash} */
199 let stats = {};
200
201 for (let like of likes) {
202 let did = atURI(like.value.subject.uri).repo;
203
204 if (!stats[did]) {
205 stats[did] = { did: did, count: 0 };
206 }
207
208 stats[did].count += 1;
209 }
210
211 return stats;
212 }
213
214 /** @param {LikeStatHash} counts, @returns {LikeStat[]} */
215
216 getTopEntries(counts) {
217 return Object.entries(counts).sort(this.sortResults).map(x => x[1]).slice(0, 25);
218 }
219
220 /** @param {LikeStat[]} topUsers, @param {HTMLTableElement} table, @returns {Promise<void>} */
221
222 async renderResults(topUsers, table) {
223 let tableBody = $(table.querySelector('tbody'));
224 tableBody.innerHTML = '';
225
226 for (let [i, user] of topUsers.entries()) {
227 let tr = $tag('tr');
228 tr.append(
229 $tag('td.no', { text: i + 1 }),
230 $tag('td.handle', {
231 html: `<img class="avatar" src="${user.avatar}"> ` +
232 `<a href="https://bsky.app/profile/${user.handle}" target="_blank">${user.handle}</a>`
233 }),
234 $tag('td.count', { text: user.count })
235 );
236
237 tableBody.append(tr);
238 };
239 }
240
241 resetProgress() {
242 this.progressBar.value = 0;
243 this.progressPosts = 0;
244 this.progressLikeRecords = 0;
245 this.progressPostLikes = 0;
246 }
247
248 /** @param {{ posts?: number, likeRecords?: number, postLikes?: number }} data */
249
250 updateProgress(data) {
251 if (data.posts) {
252 this.progressPosts = data.posts;
253 }
254
255 if (data.likeRecords) {
256 this.progressLikeRecords = data.likeRecords;
257 }
258
259 if (data.postLikes) {
260 this.progressPostLikes = data.postLikes;
261 }
262
263 let totalProgress = (
264 0.1 * this.progressPosts +
265 0.65 * this.progressLikeRecords +
266 0.25 * this.progressPostLikes
267 );
268
269 this.progressBar.value = totalProgress;
270 }
271
272 /** @param {[string, LikeStat]} a, @param {[string, LikeStat]} b, @returns {-1|1|0} */
273
274 sortResults(a, b) {
275 if (a[1].count < b[1].count) {
276 return 1;
277 } else if (a[1].count > b[1].count) {
278 return -1;
279 } else {
280 return 0;
281 }
282 }
283
284 stopScan() {
285 this.submitButton.value = 'Start scan';
286 this.progressBar.style.display = 'none';
287 this.scanStartTime = undefined;
288 }
289}