fix: receipt event (#68)

nostr/key.py

@@ -8,7 +8,7 @@
 from cryptography.hazmat.primitives.ciphers import Cipher, algorithms, modes
 
 from . import bech32
-from .event import EncryptedDirectMessage, EventKind
+from .event import EncryptedDirectMessage, Event
 
 
 class PublicKey:
@@ -118,9 +118,7 @@ def sign_message_hash(self, message_hash: bytes) -> str:
         sig = sk.schnorr_sign(message_hash, None, raw=True)
         return sig.hex()
 
-    def sign_event(self, event: EncryptedDirectMessage) -> None:
-        if event.kind == EventKind.ENCRYPTED_DIRECT_MESSAGE and event.content is None:
-            self.encrypt_dm(event)
+    def sign_event(self, event: Event) -> None:
         if event.public_key is None:
             event.public_key = self.public_key.hex()
         event.signature = self.sign_message_hash(bytes.fromhex(event.id))

tasks.py

@@ -14,7 +14,7 @@
 
 from .crud import get_or_create_lnurlp_settings, get_pay_link
 from .models import PayLink
-from .nostr.event import EncryptedDirectMessage
+from .nostr.event import Event
 
 
 async def wait_for_paid_invoices():
@@ -132,12 +132,10 @@ def get_tag(event_json, tag):
 
     pubkey = next((pk[1] for pk in tags if pk[0] == "p"), None)
     assert pubkey, "Cannot create zap receipt. Recepient pubkey is missing."
-    zap_receipt = EncryptedDirectMessage(
+    zap_receipt = Event(
         kind=9735,
-        recipient_pubkey=pubkey,
         tags=tags,
-        content=payment.extra.get("comment") or "",
-        cleartext_content=payment.extra.get("comment") or "",
+        content="",
     )
 
     settings = await get_or_create_lnurlp_settings()