ewancroft.uk
a moon tracking bot for Bluesky
feat(bluesky): improve hashtag facet handling in moon phase posts
add manual hashtag facet creation and validation to ensure proper hashtag detection
sort facets by byte offset and add debug logging for facet verification
+78
-4
src/services/blueskyService.ts
+78
-4
src/services/blueskyService.ts
···
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import * as process from "process";
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import { getMoonPhase } from "./moonPhaseService";
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import { getPlayfulMoonMessage } from "../core/moonPhaseMessages";
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import { BskyAgent, RichText } from "@atproto/api";
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import { BskyAgent, RichText, AppBskyRichtextFacet } from "@atproto/api";
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/**
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* Manually creates a hashtag facet for the given text and hashtag
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*/
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function createHashtagFacet(text: string, hashtag: string): AppBskyRichtextFacet.Main | null {
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const hashtagWithHash = hashtag.startsWith('#') ? hashtag : `#${hashtag}`;
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const hashtagIndex = text.lastIndexOf(hashtagWithHash);
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if (hashtagIndex === -1) {
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return null;
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}
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+
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// Use TextEncoder to get proper UTF-8 byte offsets
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const encoder = new TextEncoder();
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const beforeHashtag = text.substring(0, hashtagIndex);
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const hashtagText = hashtagWithHash;
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const byteStart = encoder.encode(beforeHashtag).length;
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const byteEnd = byteStart + encoder.encode(hashtagText).length;
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return {
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index: {
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byteStart,
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byteEnd,
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},
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features: [{
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$type: 'app.bsky.richtext.facet#tag',
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tag: hashtag.replace(/^#/, ''), // Remove # from the tag value
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}],
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};
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}
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export async function postMoonPhaseToBluesky() {
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console.log("Attempting to post moon phase to Bluesky.");
···
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new Date().getMonth()
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);
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// Create RichText object
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const rt = new RichText({
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text: postText,
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});
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await rt.detectFacets(agent); // Re-enable automatic facet detection
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// First, detect facets automatically (for links, mentions, etc.)
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await rt.detectFacets(agent);
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// Then, manually ensure hashtag facet is correct
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const hashtagFacet = createHashtagFacet(postText, hashtag);
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if (hashtagFacet) {
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// Check if hashtag facet already exists from automatic detection
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const existingHashtagFacet = rt.facets?.find(facet =>
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facet.features.some(feature =>
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feature.$type === 'app.bsky.richtext.facet#tag' &&
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feature.tag === hashtag.replace(/^#/, '')
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)
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);
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if (!existingHashtagFacet) {
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// Add our manually created hashtag facet
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rt.facets = [...(rt.facets || []), hashtagFacet];
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console.log("Manually added hashtag facet.");
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} else {
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console.log("Hashtag facet already detected automatically.");
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}
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}
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// Sort facets by byteStart to ensure proper ordering
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if (rt.facets && rt.facets.length > 1) {
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rt.facets.sort((a, b) => a.index.byteStart - b.index.byteStart);
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}
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// Post the moon phase information to Bluesky
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await agent.post({
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const postRecord = {
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text: rt.text,
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facets: rt.facets,
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langs: ["en"],
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createdAt: new Date().toISOString(),
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});
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};
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await agent.post(postRecord);
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console.log("Just posted:", postText);
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// Debug: Log the facets that were sent
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if (process.env.DEBUG_MODE === "true") {
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console.log("Final facets sent with post:");
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console.log(JSON.stringify(rt.facets, null, 2));
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// Verify UTF-8 encoding
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const encoder = new TextEncoder();
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const utf8Bytes = encoder.encode(postText);
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console.log(`Post text UTF-8 length: ${utf8Bytes.length} bytes`);
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console.log(`Post text character length: ${postText.length} characters`);
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}
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} else {
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console.log("Could not retrieve moon phase data to post.");
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}