From 26ffc44ee72522891b4fdacac15134dfcf9c4859 Mon Sep 17 00:00:00 2001
From: Dawid Rycerz <dawid@rycerz.xyz>
Date: Mon, 12 Jan 2026 22:27:17 +0100
Subject: Rework how tags are working and make them native

---
 src/loaders/pleroma.ts | 52 ++++++++++++++++++++++++++++++++++++++++++--------
 1 file changed, 44 insertions(+), 8 deletions(-)

(limited to 'src/loaders/pleroma.ts')

diff --git a/src/loaders/pleroma.ts b/src/loaders/pleroma.ts
index 0fd839f..975f57e 100644
--- a/src/loaders/pleroma.ts
+++ b/src/loaders/pleroma.ts
@@ -317,11 +317,9 @@ ${imageAttachments
 	// Join segments with horizontal rule separator
 	let content = segments.join("\n\n---\n\n");
 
-	// Append consolidated tags at the end as markdown links
+	// Append consolidated tags at the end as plain hashtags
 	if (allTags.size > 0) {
-		// Get the instance URL from the first post to construct tag URLs
-		const instanceUrl = chain[0]?.account.url.split("/@")[0] || "https://social.craftknight.com";
-		const tagLine = [...allTags].map((t) => `[#${t}](${instanceUrl}/tag/${t})`).join(" ");
+		const tagLine = [...allTags].map((t) => `#${t}`).join(" ");
 		content = `${content}\n\n${tagLine}`;
 	}
 
@@ -540,6 +538,36 @@ function cleanContent(htmlContent: string): string {
 	return markdown.trim().replace(/\n\s*\n\s*\n/g, "\n\n");
 }
 
+/**
+ * Replace all hashtags in content with internal tag links
+ * Handles both plain #hashtags and existing markdown links [#tag](url)
+ * Returns modified content and extracted tags array
+ */
+function replaceHashtagsWithLinks(content: string): {
+	content: string;
+	tags: string[];
+} {
+	const tags: string[] = [];
+
+	// First, replace existing markdown hashtag links: [#tag](any-url)
+	let modifiedContent = content.replace(/\[#(\w+)\]\([^)]+\)/g, (_match, tag) => {
+		tags.push(tag.toLowerCase());
+		return `[#${tag}](/micro/tags/${tag.toLowerCase()})`;
+	});
+
+	// Then, replace plain #hashtags (not already in markdown link format)
+	// Negative lookbehind to avoid matching hashtags already in [#tag] format
+	modifiedContent = modifiedContent.replace(/(?<!\[)#(\w+)(?!\])/g, (_match, tag) => {
+		tags.push(tag.toLowerCase());
+		return `[#${tag}](/micro/tags/${tag.toLowerCase()})`;
+	});
+
+	return {
+		content: modifiedContent,
+		tags: [...new Set(tags)], // Deduplicate
+	};
+}
+
 /**
  * Replace Pleroma notice links with internal links when the post exists in our collection
  * Handles both markdown links and plain URLs
@@ -654,6 +682,7 @@ export function pleromaLoader(config: PleromaFeedConfig): Loader {
 						let attachments: Array<{ url: string; type: string }>;
 						let postId: string;
 						let sourceUrl: string;
+						let tags: string[];
 
 						// Check if this is a thread starter and thread merging is enabled
 						if (config.mergeThreads !== false && isThreadStarter(content)) {
@@ -667,15 +696,21 @@ export function pleromaLoader(config: PleromaFeedConfig): Loader {
 
 							// Merge thread content
 							const merged = mergeThreadContent(chain);
-							cleanedContent = merged.content;
-							cleanedContent = replacePleromaLinks(cleanedContent, instanceUrl, allPostIds);
+							const { content: contentWithTags, tags: extractedTags } = replaceHashtagsWithLinks(
+								merged.content,
+							);
+							tags = extractedTags;
+							cleanedContent = replacePleromaLinks(contentWithTags, instanceUrl, allPostIds);
 							attachments = merged.attachments;
 							postId = status.id;
 							sourceUrl = status.url;
 						} else {
 							// Process as single post
-							cleanedContent = cleanContent(content);
-							cleanedContent = replacePleromaLinks(cleanedContent, instanceUrl, allPostIds);
+							const rawContent = cleanContent(content);
+							const { content: contentWithTags, tags: extractedTags } =
+								replaceHashtagsWithLinks(rawContent);
+							tags = extractedTags;
+							cleanedContent = replacePleromaLinks(contentWithTags, instanceUrl, allPostIds);
 							postId = status.id;
 							sourceUrl = status.url;
 
@@ -711,6 +746,7 @@ export function pleromaLoader(config: PleromaFeedConfig): Loader {
 								author,
 								attachments,
 								language: status.language || undefined,
+								tags,
 							},
 							body: cleanedContent,
 							rendered: {
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