From 61515243939098f2326536df965806c749f7ad9f Mon Sep 17 00:00:00 2001
From: obrusvit <vit.obrusnik@gmail.com>
Date: Wed, 11 Dec 2024 16:26:27 +0100
Subject: [PATCH] feat(contacts): new contact UI using nostr event

---
 core/src/apps/nostr/sign_event.py | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/core/src/apps/nostr/sign_event.py b/core/src/apps/nostr/sign_event.py
index 4718526f1d..55e0909a9d 100644
--- a/core/src/apps/nostr/sign_event.py
+++ b/core/src/apps/nostr/sign_event.py
@@ -15,6 +15,7 @@ async def sign_event(msg: NostrSignEvent, keychain: Keychain) -> NostrEventSigna
     from trezor.crypto.curve import secp256k1
     from trezor.crypto.hashlib import sha256
     from trezor.messages import NostrEventSignature
+    from trezor.ui.layouts import confirm_action, confirm_new_contact
 
     address_n = msg.address_n
     created_at = msg.created_at
@@ -22,6 +23,22 @@ async def sign_event(msg: NostrSignEvent, keychain: Keychain) -> NostrEventSigna
     tags = msg.tags
     content = msg.content
 
+    if content and kind == 27922:
+        if "/" not in content:
+            raise ValueError("Invalid content")
+        # message will have format <label>/<npub>
+        # hackathon simplification
+        label, contact_id = content.split("/")
+        await confirm_new_contact(
+            label=label,
+            contact_id=contact_id,
+            chunkify=True,
+        )
+    else:
+        await confirm_action(
+            "nostr_sign_event", "Nostr event", action="Sign nostr event", description=""
+        )
+
     node = keychain.derive(address_n)
     pk = node.public_key()[-32:]
     sk = node.private_key()