From 57d7f7ff40d28f8cd2350801f45a92b1907461fa Mon Sep 17 00:00:00 2001
From: Alex Gleason <alex@alexgleason.me>
Date: Mon, 1 Jan 2024 16:30:11 -0600
Subject: [PATCH] Support `pinned` param in accountStatusesController

---
 src/controllers/api/accounts.ts | 13 +++++++++----
 src/queries.ts                  |  6 ++----
 src/views.ts                    |  4 ++++
 3 files changed, 15 insertions(+), 8 deletions(-)

diff --git a/src/controllers/api/accounts.ts b/src/controllers/api/accounts.ts
index b25dbe4..6ad3944 100644
--- a/src/controllers/api/accounts.ts
+++ b/src/controllers/api/accounts.ts
@@ -7,12 +7,12 @@ import { type DittoFilter } from '@/filter.ts';
 import { getAuthor, getFollowedPubkeys } from '@/queries.ts';
 import { booleanParamSchema, fileSchema } from '@/schema.ts';
 import { jsonMetaContentSchema } from '@/schemas/nostr.ts';
-import { addTag, deleteTag } from '@/tags.ts';
+import { addTag, deleteTag, getTagSet } from '@/tags.ts';
 import { uploadFile } from '@/upload.ts';
 import { lookupAccount, nostrNow } from '@/utils.ts';
 import { paginated, paginationSchema, parseBody, updateListEvent } from '@/utils/web.ts';
 import { createEvent } from '@/utils/web.ts';
-import { renderAccounts, renderEventAccounts } from '@/views.ts';
+import { renderAccounts, renderEventAccounts, renderStatuses } from '@/views.ts';
 import { accountFromPubkey, renderAccount } from '@/views/mastodon/accounts.ts';
 import { renderRelationship } from '@/views/mastodon/relationships.ts';
 import { renderStatus } from '@/views/mastodon/statuses.ts';
@@ -134,9 +134,14 @@ const accountStatusesController: AppController = async (c) => {
   const { since, until } = paginationSchema.parse(c.req.query());
   const { pinned, limit, exclude_replies, tagged } = accountStatusesQuerySchema.parse(c.req.query());
 
-  // Nostr doesn't support pinned statuses.
   if (pinned) {
-    return c.json([]);
+    const [pinEvent] = await eventsDB.getEvents([{ kinds: [10001], authors: [pubkey], limit: 1 }]);
+    if (pinEvent) {
+      const pinnedEventIds = getTagSet(pinEvent.tags, 'e');
+      return renderStatuses(c, [...pinnedEventIds].reverse());
+    } else {
+      return c.json([]);
+    }
   }
 
   const filter: DittoFilter<1> = {
diff --git a/src/queries.ts b/src/queries.ts
index 95020d0..de60553 100644
--- a/src/queries.ts
+++ b/src/queries.ts
@@ -4,6 +4,7 @@ import { type Event, findReplyTag } from '@/deps.ts';
 import { type AuthorMicrofilter, type DittoFilter, type IdMicrofilter, type Relation } from '@/filter.ts';
 import { reqmeister } from '@/reqmeister.ts';
 import { type DittoEvent } from '@/store.ts';
+import { getTagSet } from '@/tags.ts';
 
 interface GetEventOpts<K extends number> {
   /** Signal to abort the request. */
@@ -87,10 +88,7 @@ const getFollows = async (pubkey: string, signal?: AbortSignal): Promise<Event<3
 async function getFollowedPubkeys(pubkey: string, signal?: AbortSignal): Promise<string[]> {
   const event = await getFollows(pubkey, signal);
   if (!event) return [];
-
-  return event.tags
-    .filter((tag) => tag[0] === 'p')
-    .map((tag) => tag[1]);
+  return [...getTagSet(event.tags, 'p')];
 }
 
 /** Get pubkeys the user follows, including the user's own pubkey. */
diff --git a/src/views.ts b/src/views.ts
index 7c22170..b87baad 100644
--- a/src/views.ts
+++ b/src/views.ts
@@ -47,6 +47,10 @@ async function renderAccounts(c: AppContext, authors: string[], signal = AbortSi
 
 /** Render statuses by event IDs. */
 async function renderStatuses(c: AppContext, ids: string[], signal = AbortSignal.timeout(1000)) {
+  if (!ids.length) {
+    return c.json([]);
+  }
+
   const { limit } = paginationSchema.parse(c.req.query());
 
   const events = await eventsDB.getEvents(