Propagate tag preferences through feed runtimes

js/app.js

@@ -6434,6 +6434,9 @@ class Application {
       return this.feedEngine.registerFeed("recent", {
         source: createActiveNostrSource({ service: this.nostrService }),
         stages: [
+          // TODO(tag-preferences): introduce a dedicated stage here to filter by
+          // viewer interests/disinterests once the runtime metadata is wired up
+          // to filtering helpers.
           createBlacklistFilterStage({
             shouldIncludeVideo: (video, options) =>
               this.nostrService.shouldIncludeVideo(video, options),
@@ -6475,6 +6478,8 @@ class Application {
       return this.feedEngine.registerFeed("subscriptions", {
         source: createSubscriptionAuthorsSource({ service: this.nostrService }),
         stages: [
+          // TODO(tag-preferences): introduce preference-aware filtering ahead of
+          // the blacklist stage when tag-based ranking lands.
           createBlacklistFilterStage({
             shouldIncludeVideo: (video, options) =>
               this.nostrService.shouldIncludeVideo(video, options),
@@ -6533,9 +6538,19 @@ class Application {
         ? new Set(this.blacklistedEventIds)
         : new Set();
 
+    const preferenceSource =
+      typeof this.getHashtagPreferences === "function"
+        ? this.getHashtagPreferences()
+        : {};
+    const { interests = [], disinterests = [] } = preferenceSource || {};
+
     return {
       blacklistedEventIds: blacklist,
       isAuthorBlocked: (pubkey) => this.isAuthorBlocked(pubkey),
+      tagPreferences: {
+        interests: Array.isArray(interests) ? [...interests] : [],
+        disinterests: Array.isArray(disinterests) ? [...disinterests] : [],
+      },
     };
   }
 

js/feedEngine/stages.js

@@ -97,6 +97,10 @@ export function createBlacklistFilterStage({
 
     const options = { blacklistedEventIds: blacklist, isAuthorBlocked };
 
+    // TODO(tag-preferences): incorporate context.runtime.tagPreferences once the
+    // filtering helpers are in place so this stage can drop disinterested tags
+    // without disturbing existing blacklist logic.
+
     const results = [];
 
     for (const item of items) {

js/historyView.js

@@ -103,6 +103,19 @@ function buildWatchHistoryFeedRuntime({ actor, cursor = 0 } = {}) {
     }
   };
 
+  const preferenceSource =
+    typeof app?.getHashtagPreferences === "function"
+      ? app.getHashtagPreferences()
+      : {};
+  runtime.tagPreferences = {
+    interests: Array.isArray(preferenceSource?.interests)
+      ? [...preferenceSource.interests]
+      : [],
+    disinterests: Array.isArray(preferenceSource?.disinterests)
+      ? [...preferenceSource.disinterests]
+      : []
+  };
+
   if (normalizedActor) {
     runtime.actor = normalizedActor;
   }

js/subscriptions.js

@@ -878,12 +878,25 @@ class SubscriptionsManager {
         ? Math.floor(limitCandidate)
         : null;
 
+    const preferenceSource =
+      typeof app?.getHashtagPreferences === "function"
+        ? app.getHashtagPreferences()
+        : {};
+
     return {
       subscriptionAuthors: normalizedAuthors,
       authors: normalizedAuthors,
       blacklistedEventIds: blacklist,
       isAuthorBlocked,
-      limit: normalizedLimit
+      limit: normalizedLimit,
+      tagPreferences: {
+        interests: Array.isArray(preferenceSource?.interests)
+          ? [...preferenceSource.interests]
+          : [],
+        disinterests: Array.isArray(preferenceSource?.disinterests)
+          ? [...preferenceSource.disinterests]
+          : [],
+      },
     };
   }