From b573236cbfe30c36ddbd24a9850ffdbefb13df11 Mon Sep 17 00:00:00 2001
From: Paul Robert Lloyd <me+git@paulrobertlloyd.com>
Date: Tue, 16 Jan 2024 23:55:51 +0000
Subject: [PATCH] fix: only add references property if references found

---
 lib/fetch-references.js |  5 ++++-
 test/index.js           | 29 +++++++++++++++++++++++++++++
 2 files changed, 33 insertions(+), 1 deletion(-)

diff --git a/lib/fetch-references.js b/lib/fetch-references.js
index ca1bb8c..9a213d3 100644
--- a/lib/fetch-references.js
+++ b/lib/fetch-references.js
@@ -47,7 +47,10 @@ export const fetchReferences = async (jf2) => {
     };
   }
 
-  jf2.references = references;
+  // Only add `references` property if references found
+  if (Object.entries(references).length !== 0) {
+    jf2.references = references;
+  }
 
   return jf2;
 };
diff --git a/test/index.js b/test/index.js
index 6ae27a1..5ba85df 100644
--- a/test/index.js
+++ b/test/index.js
@@ -617,6 +617,7 @@ describe("mf2tojf2", () => {
             published: ["2019-02-12T10:00:00.000+00:00"],
             url: ["https://website.example/bookmarks/lunch"],
             "bookmark-of": ["https://another.example/notes/lunch"],
+            "mp-syndicate-to": "https://example.social/@username",
           },
         },
       ],
@@ -629,6 +630,7 @@ describe("mf2tojf2", () => {
         published: "2019-02-12T10:00:00.000+00:00",
         url: "https://website.example/bookmarks/lunch",
         "bookmark-of": "https://another.example/notes/lunch",
+        "mp-syndicate-to": "https://example.social/@username",
         references: {
           "https://another.example/notes/lunch": {
             type: "entry",
@@ -646,4 +648,31 @@ describe("mf2tojf2", () => {
       expected,
     );
   });
+
+  it("Doesn’t add references", async () => {
+    const expected = await mf2tojf2referenced({
+      items: [
+        {
+          type: ["h-entry"],
+          properties: {
+            name: ["What my friend ate for lunch yesterday"],
+            published: ["2019-02-12T10:00:00.000+00:00"],
+            url: ["https://website.example/bookmarks/lunch"],
+            "mp-syndicate-to": "https://example.social/@username",
+          },
+        },
+      ],
+    });
+
+    assert.deepEqual(
+      {
+        type: "entry",
+        name: "What my friend ate for lunch yesterday",
+        published: "2019-02-12T10:00:00.000+00:00",
+        url: "https://website.example/bookmarks/lunch",
+        "mp-syndicate-to": "https://example.social/@username",
+      },
+      expected,
+    );
+  });
 });