From 154056f8d6486ffbfa3f730e6473fff6fa972a5e Mon Sep 17 00:00:00 2001
From: Alex Gleason <alex@alexgleason.me>
Date: Wed, 20 Nov 2024 08:56:38 -0600
Subject: [PATCH] Add custom profile fields

---
 src/controllers/api/accounts.ts |  9 ++++++++-
 src/schemas/nostr.ts            | 15 ++++++++++++++-
 src/views/mastodon/accounts.ts  |  6 ++++--
 3 files changed, 26 insertions(+), 4 deletions(-)

diff --git a/src/controllers/api/accounts.ts b/src/controllers/api/accounts.ts
index 27cf7590..1ae6a4f6 100644
--- a/src/controllers/api/accounts.ts
+++ b/src/controllers/api/accounts.ts
@@ -15,6 +15,7 @@ import { renderAccounts, renderEventAccounts, renderStatuses } from '@/views.ts'
 import { accountFromPubkey, renderAccount } from '@/views/mastodon/accounts.ts';
 import { renderRelationship } from '@/views/mastodon/relationships.ts';
 import { renderReblog, renderStatus } from '@/views/mastodon/statuses.ts';
+import { metadataSchema } from '@/schemas/nostr.ts';
 import { hydrateEvents } from '@/storages/hydrate.ts';
 import { bech32ToPubkey } from '@/utils.ts';
 import { addTag, deleteTag, findReplyTag, getTagSet } from '@/utils/tags.ts';
@@ -269,6 +270,7 @@ const updateCredentialsSchema = z.object({
   pleroma_settings_store: z.record(z.string(), z.unknown()).optional(),
   lud16: z.string().email().or(z.literal('')).optional(),
   website: z.string().url().or(z.literal('')).optional(),
+  fields_attributes: z.object({ name: z.string(), value: z.string() }).array().optional(),
 });
 
 const updateCredentialsController: AppController = async (c) => {
@@ -284,11 +286,12 @@ const updateCredentialsController: AppController = async (c) => {
   const event = await updateEvent(
     { kinds: [0], authors: [pubkey], limit: 1 },
     async (prev) => {
-      const meta = n.json().pipe(n.metadata()).catch({}).parse(prev.content);
+      const meta = n.json().pipe(metadataSchema).catch({}).parse(prev.content);
       const {
         avatar: avatarFile,
         header: headerFile,
         display_name,
+        fields_attributes,
         note,
         nip05,
         lud16,
@@ -316,6 +319,10 @@ const updateCredentialsController: AppController = async (c) => {
       if (lud16 === '') delete meta.lud16;
       if (website === '') delete meta.website;
 
+      if (fields_attributes) {
+        meta.fields = fields_attributes.map(({ name, value }) => [name, value]);
+      }
+
       return {
         kind: 0,
         content: JSON.stringify(meta),
diff --git a/src/schemas/nostr.ts b/src/schemas/nostr.ts
index 4e8f917d..05cd0f31 100644
--- a/src/schemas/nostr.ts
+++ b/src/schemas/nostr.ts
@@ -9,6 +9,11 @@ const signedEventSchema = n.event()
   .refine((event) => event.id === getEventHash(event), 'Event ID does not match hash')
   .refine(verifyEvent, 'Event signature is invalid');
 
+/** Kind 0 standardized fields extended with Ditto custom fields. */
+const metadataSchema = n.metadata().and(z.object({
+  fields: z.tuple([z.string(), z.string()]).array().optional().catch(undefined),
+}));
+
 /**
  * Stored in the kind 0 content.
  * https://developer.mozilla.org/en-US/docs/Web/Manifest/screenshots
@@ -63,4 +68,12 @@ const emojiTagSchema = z.tuple([z.literal('emoji'), z.string(), z.string().url()
 /** NIP-30 custom emoji tag. */
 type EmojiTag = z.infer<typeof emojiTagSchema>;
 
-export { type EmojiTag, emojiTagSchema, relayInfoDocSchema, screenshotsSchema, serverMetaSchema, signedEventSchema };
+export {
+  type EmojiTag,
+  emojiTagSchema,
+  metadataSchema,
+  relayInfoDocSchema,
+  screenshotsSchema,
+  serverMetaSchema,
+  signedEventSchema,
+};
diff --git a/src/views/mastodon/accounts.ts b/src/views/mastodon/accounts.ts
index 6d0e0446..78358023 100644
--- a/src/views/mastodon/accounts.ts
+++ b/src/views/mastodon/accounts.ts
@@ -4,6 +4,7 @@ import { nip19, UnsignedEvent } from 'nostr-tools';
 import { Conf } from '@/config.ts';
 import { MastodonAccount } from '@/entities/MastodonAccount.ts';
 import { type DittoEvent } from '@/interfaces/DittoEvent.ts';
+import { metadataSchema } from '@/schemas/nostr.ts';
 import { getLnurl } from '@/utils/lnurl.ts';
 import { parseAndVerifyNip05 } from '@/utils/nip05.ts';
 import { parseNoteContent } from '@/utils/note.ts';
@@ -42,7 +43,8 @@ async function renderAccount(
     lud06,
     lud16,
     website,
-  } = n.json().pipe(n.metadata()).catch({}).parse(event.content);
+    fields,
+  } = n.json().pipe(metadataSchema).catch({}).parse(event.content);
 
   const npub = nip19.npubEncode(pubkey);
   const nprofile = nip19.nprofileEncode({ pubkey, relays: [Conf.relay] });
@@ -69,7 +71,7 @@ async function renderAccount(
     discoverable: true,
     display_name: name ?? '',
     emojis: renderEmojis(event),
-    fields: [],
+    fields: fields?.map(([name, value]) => ({ name, value, verified_at: null })) ?? [],
     follow_requests_count: 0,
     followers_count: event.author_stats?.followers_count ?? 0,
     following_count: event.author_stats?.following_count ?? 0,