WIP Check for zaps, send zap receipt on incoming zap tx

app/controllers/webhooks_controller.rb

@@ -7,6 +7,12 @@ class WebhooksController < ApplicationController
   def lndhub
     @user = User.find_by!(ln_account: @payload[:user_login])
 
+    if @zap_request = fetch_nostr_event_from_description
+      NostrManager::PublishZapReceipt.call(
+        user: @user, zap_request: @zap_request
+      )
+    end
+
     send_notifications
 
     head :ok
@@ -21,12 +27,17 @@ class WebhooksController < ApplicationController
   end
 
   def process_payload
-    begin
-      @payload = JSON.parse(request.body.read, symbolize_names: true)
-      head :no_content and return unless @payload[:type] == "incoming"
-    rescue
-      head :unprocessable_entity and return
-    end
+    @payload = JSON.parse(request.body.read, symbolize_names: true)
+    head :no_content and return unless @payload[:type] == "incoming"
+  rescue
+    head :unprocessable_entity and return
+  end
+
+  def fetch_nostr_event_from_description
+    memo_json = JSON.parse(@payload[:memo])
+    Nostr::Event.new(**memo_json.to_h.symbolize_keys)
+  rescue
+    nil
   end
 
   def send_notifications