Document and test share note events

docs/nostr-event-schemas.md

@@ -174,6 +174,22 @@ import { updateWatchHistoryListWithDefaultClient } from "./nostrWatchHistoryFaca
 | Zap request (`NOTE_TYPES.ZAP_REQUEST`) | `9734` | `['p', <recipient pubkey>]` plus optional `['e', <event id>]`, `['a', <coordinate>]`, `['amount', <msats>]`, `['lnurl', <bech32>]`, and `['relays', ...]` for receipt publishing | Optional plaintext zap note |
 | Zap receipt (`NOTE_TYPES.ZAP_RECEIPT`) | `9735` | `['bolt11', <invoice>]`, `['description', <zap request JSON>]`, `['p', <recipient pubkey>]` plus optional `['e', <event id>]` and `['a', <coordinate>]` | Empty content; receipts are published by the recipient's LNURL server |
 
+### Share notes (kind `1`)
+
+Share notes are plain text `kind:1` events generated by the Share modal. The
+`content` field is preserved verbatim (after UTF-8 sanitization) and can contain
+any short message or commentary accompanying the share.
+
+The builder attaches the following tags:
+
+* `['e', <event id>, '', 'mention']` — the shared video’s event id, normalized to
+  lowercase hex.
+* `['p', <pubkey>, '', 'mention']` — the shared video’s author pubkey,
+  normalized to lowercase hex.
+* `['r', <relay url>, <read/write?>]` — optional relay hints. Relay URLs are
+  trimmed, duplicates are removed, and the optional marker is normalized to
+  `read` or `write` when provided.
+
 Subscription lists therefore match the
 [NIP-51 follow-set specification](./nips/51.md#sets) by emitting kind `30000`
 events with the shared `['d','subscriptions']` identifier. Builders continue to

js/nostrEventSchemas.js

@@ -1010,14 +1010,12 @@ export function buildShareEvent(params) {
   const readMarker = schema?.readMarker || "read";
   const writeMarker = schema?.writeMarker || "write";
 
-  const normalizedVideoId =
-    typeof video?.id === "string" ? video.id.trim() : "";
+  const normalizedVideoId = normalizePointerIdentifier(video?.id);
   if (normalizedVideoId) {
     tags.push(["e", normalizedVideoId, "", "mention"]);
   }
 
-  const normalizedVideoPubkey =
-    typeof video?.pubkey === "string" ? video.pubkey.trim() : "";
+  const normalizedVideoPubkey = normalizePointerIdentifier(video?.pubkey);
   if (normalizedVideoPubkey) {
     tags.push(["p", normalizedVideoPubkey, "", "mention"]);
   }

tests/share-event-builder.test.mjs

@@ -0,0 +1,93 @@
+import test from "node:test";
+import assert from "node:assert/strict";
+
+const SAMPLE_HEX = "deadbeef".repeat(8);
+const SAMPLE_NPUB = "npub1shareeventfixture000000000000000000000";
+
+if (typeof globalThis.window === "undefined") {
+  globalThis.window = {};
+}
+
+if (!globalThis.window.NostrTools) {
+  globalThis.window.NostrTools = {};
+}
+
+const existingNip19 =
+  typeof globalThis.window.NostrTools.nip19 === "object"
+    ? globalThis.window.NostrTools.nip19
+    : {};
+
+if (typeof existingNip19.decode !== "function") {
+  globalThis.window.NostrTools.nip19 = {
+    ...existingNip19,
+    decode: () => ({ type: "npub", data: SAMPLE_HEX }),
+  };
+}
+
+const { buildShareEvent } = await import("../js/nostrEventSchemas.js");
+
+test("buildShareEvent preserves share content", () => {
+  const event = buildShareEvent({
+    pubkey: "share-author",
+    created_at: 1700000800,
+    content: "Check this out!",
+    video: { id: "a".repeat(64), pubkey: "b".repeat(64) },
+  });
+
+  assert.equal(event.content, "Check this out!");
+});
+
+test("buildShareEvent normalizes hex identifiers for e and p tags", () => {
+  const event = buildShareEvent({
+    pubkey: "share-author",
+    created_at: 1700000801,
+    content: "Normalize IDs",
+    video: {
+      id: "ABCDEF".repeat(10) + "ABCD",
+      pubkey: SAMPLE_NPUB,
+    },
+  });
+
+  const eventTags = event.tags.filter((tag) => Array.isArray(tag) && tag[0] === "e");
+  const authorTags = event.tags.filter((tag) => Array.isArray(tag) && tag[0] === "p");
+
+  assert.deepEqual(eventTags, [["e", "abcdef".repeat(10) + "abcd", "", "mention"]]);
+  assert.deepEqual(authorTags, [["p", SAMPLE_HEX, "", "mention"]]);
+});
+
+test("buildShareEvent includes sanitized relay hints", () => {
+  const event = buildShareEvent({
+    pubkey: "share-author",
+    created_at: 1700000802,
+    content: "Relay hints",
+    video: { id: "c".repeat(64), pubkey: "d".repeat(64) },
+    relays: [
+      "  wss://relay.one  ",
+      { url: " wss://relay.two ", mode: "READ" },
+      ["r", "wss://relay.one", "write"],
+      { relay: "wss://relay.three", write: true, read: false },
+      ["wss://relay.four", "write"],
+    ],
+  });
+
+  const relayTags = event.tags.filter((tag) => Array.isArray(tag) && tag[0] === "r");
+
+  assert.deepEqual(relayTags, [
+    ["r", "wss://relay.one"],
+    ["r", "wss://relay.two", "read"],
+    ["r", "wss://relay.one", "write"],
+    ["r", "wss://relay.three", "write"],
+    ["r", "wss://relay.four", "write"],
+  ]);
+});
+
+test("buildShareEvent tolerates missing optional fields", () => {
+  const event = buildShareEvent({
+    pubkey: "share-author",
+    created_at: 1700000803,
+  });
+
+  assert.equal(event.kind, 1);
+  assert.equal(event.content, "");
+  assert.deepEqual(event.tags, []);
+});