Merge pull request 'feat(signer): nostr publish via resolve_for_wallet + door-scanner stats endpoint' (#24) from signer-abstraction into main

Reviewed-on: #24

config.json

@@ -1,6 +1,6 @@
 {
   "id": "events",
-  "version": "1.6.1-aio.3",
+  "version": "1.6.1-aio.5",
   "name": "Events",
   "repo": "https://git.atitlan.io/aiolabs/events",
   "short_description": "Sell and register event tickets",

nostr_hooks.py

@@ -15,25 +15,30 @@ from .nostr_publisher import publish_event_to_nostr
 async def publish_or_delete_nostr_event(event: Event, *, delete: bool = False) -> None:
     """Publish or delete the NIP-52 calendar event for `event`.
 
-    Pulls the wallet owner's pubkey/prvkey to sign with the user's identity.
-    Failures are logged and swallowed so a Nostr outage doesn't break the
-    HTTP flow that triggered the publish.
+    Resolves a `NostrSigner` for the wallet owner — backend-agnostic
+    (LocalSigner / RemoteBunkerSigner / ClientSideOnlySigner). The
+    signer abstraction handles the actual key material; this hook
+    only needs `signer.pubkey` for event construction and
+    `await signer.sign_event(...)` for signing. Failures are logged
+    and swallowed so a Nostr outage doesn't break the HTTP flow that
+    triggered the publish.
     """
     try:
-        from lnbits.core.crud.users import get_account
-        from lnbits.core.crud.wallets import get_wallet
+        from lnbits.core.signers import resolve_for_wallet
 
         from . import nostr_client
 
-        wallet_obj = await get_wallet(event.wallet)
-        if not wallet_obj:
-            return
-        account = await get_account(wallet_obj.user)
-        if not account or not account.pubkey or not account.prvkey:
+        signer = await resolve_for_wallet(event.wallet)
+        if signer is None:
+            # Wallet missing, account missing, unclassified row, or
+            # ClientSideOnlySigner account (server can't sign for them).
+            # Soft-fail: skip the publish silently. The user can still
+            # publish kind-31922/31923 events client-side once we have
+            # that path.
             return
 
         nostr_event = await publish_event_to_nostr(
-            nostr_client, event, account.pubkey, account.prvkey, delete=delete
+            nostr_client, event, signer, delete=delete
         )
         if nostr_event and not delete:
             event.nostr_event_id = nostr_event.id

nostr_publisher.py

@@ -1,8 +1,9 @@
 """
 NIP-52 calendar event publishing for the events extension.
 
-Builds NIP-52 calendar events from the Event model, signs them with the
-creator's Account keypair, and publishes via the NostrClient.
+Builds NIP-52 calendar events from the Event model, signs them via the
+core `NostrSigner` abstraction (backend-agnostic: LocalSigner,
+RemoteBunkerSigner, etc.), and publishes via the NostrClient.
 
 Kind 31922 is used for date-only events; kind 31923 (time-based) is used
 when event_start_date / event_end_date include a time component.
@@ -13,7 +14,7 @@ Reference: https://github.com/nostr-protocol/nips/blob/master/52.md
 import time
 from datetime import datetime, timezone
 
-import coincurve
+from lnbits.core.signers import NostrSigner
 from loguru import logger
 
 from .models import Event
@@ -142,23 +143,20 @@ def build_nip52_delete_event(event: Event, pubkey: str) -> NostrEvent:
     return nostr_event
 
 
-def sign_nostr_event(nostr_event: NostrEvent, private_key_hex: str) -> None:
-    """Sign a NostrEvent in-place using Schnorr signature."""
-    privkey = coincurve.PrivateKey(bytes.fromhex(private_key_hex))
-    sig = privkey.sign_schnorr(bytes.fromhex(nostr_event.id))
-    nostr_event.sig = sig.hex()
-
-
 async def publish_event_to_nostr(
     nostr_client,
     event: Event,
-    account_pubkey: str,
-    account_prvkey: str,
+    signer: NostrSigner,
     delete: bool = False,
 ) -> NostrEvent | None:
     """
     Build, sign, and publish a NIP-52 calendar event (or delete event).
 
+    Signing routes through the core `NostrSigner` abstraction —
+    `signer.pubkey` for the event identity, `await signer.sign_event(...)`
+    for the Schnorr signature. The signer backend (LocalSigner /
+    RemoteBunkerSigner) is transparent to this function.
+
     Returns the published NostrEvent for metadata storage, or None on failure.
     """
     if not nostr_client:
@@ -167,11 +165,25 @@ async def publish_event_to_nostr(
 
     try:
         if delete:
-            nostr_event = build_nip52_delete_event(event, account_pubkey)
+            nostr_event = build_nip52_delete_event(event, signer.pubkey)
         else:
-            nostr_event = build_nip52_event(event, account_pubkey)
+            nostr_event = build_nip52_event(event, signer.pubkey)
+
+        # Hand the unsigned event to the signer — it fills in `id`,
+        # `pubkey`, and `sig`. The signer's serialization rules match
+        # NIP-01 (same as the local `event_id` property uses), so the
+        # returned id matches what we'd have computed locally.
+        unsigned = {
+            "kind": nostr_event.kind,
+            "created_at": nostr_event.created_at,
+            "tags": nostr_event.tags,
+            "content": nostr_event.content,
+        }
+        signed = await signer.sign_event(unsigned)
+        nostr_event.id = signed["id"]
+        nostr_event.pubkey = signed["pubkey"]
+        nostr_event.sig = signed["sig"]
 
-        sign_nostr_event(nostr_event, account_prvkey)
         await nostr_client.publish_nostr_event(nostr_event)
 
         logger.info(

views_api.py

@@ -47,6 +47,7 @@ from .crud import (
     get_settings,
     get_ticket,
     get_tickets,
+    get_tickets_by_event,
     get_tickets_by_payment_hash,
     get_tickets_by_user_id,
     purge_unpaid_tickets,
@@ -832,3 +833,52 @@ async def api_event_register_ticket(
     ticket.reg_timestamp = datetime.now(timezone.utc)
     ticket = await update_ticket(ticket)
     return ticket
+
+
+@tickets_api_router.get("/event/{event_id}/stats")
+async def api_event_ticket_stats(
+    event_id: str,
+    key_info: WalletTypeInfo = Depends(require_admin_key),
+) -> dict:
+    """Door-scanner roster + counts for one event, organizer-only.
+
+    Mirrors the `events_list_event_tickets` nostr-transport RPC for
+    callers that don't hold a raw user prvkey (the webapp post-#9, in
+    particular). Auth: wallet admin_key + the event's wallet must be
+    in the caller's wallet set.
+    """
+    event = await get_event(event_id)
+    if not event:
+        raise HTTPException(
+            status_code=HTTPStatus.NOT_FOUND, detail="Event does not exist."
+        )
+
+    user = await get_user(key_info.wallet.user)
+    owned_wallet_ids = user.wallet_ids if user else [key_info.wallet.id]
+    if event.wallet not in owned_wallet_ids:
+        raise HTTPException(
+            status_code=HTTPStatus.FORBIDDEN,
+            detail="You do not own this event.",
+        )
+
+    tickets = await get_tickets_by_event(event_id)
+    paid_tickets = [t for t in tickets if t.paid]
+    registered_count = sum(1 for t in paid_tickets if t.registered)
+
+    return {
+        "event_id": event_id,
+        "sold": len(paid_tickets),
+        "registered": registered_count,
+        "remaining": len(paid_tickets) - registered_count,
+        "tickets": [
+            {
+                "id": t.id,
+                "name": t.name,
+                "registered": t.registered,
+                "registered_at": (
+                    t.reg_timestamp.isoformat() if t.reg_timestamp else None
+                ),
+            }
+            for t in paid_tickets
+        ],
+    }