Move lndhub invoice creation to service

app/controllers/lnurlpay_controller.rb

@@ -95,11 +95,13 @@ class LnurlpayController < ApplicationController
       memo = "To #{address}"
       memo = "#{memo}: \"#{comment}\"" if comment.present?
 
-      payment_request = @user.ln_create_invoice({
-        amount: amount, # sats
-        memo: memo,
-        description_hash: Digest::SHA2.hexdigest(metadata(address)),
-      })
+      payment_request = LndhubManager::CreateUserInvoice.call(
+        user: @user, payload: {
+          amount: amount, # sats
+          memo: memo,
+          description_hash: Digest::SHA2.hexdigest(metadata(address)),
+        }
+      )
 
       render json: {
         status: "OK",
@@ -133,15 +135,14 @@ class LnurlpayController < ApplicationController
         return
       end
 
-      # TODO
-      # raise zap_metadata(event).inspect
-
-      payment_request = @user.ln_create_invoice({
-        amount: amount, # sats
-        # TODO should be npub instead of address?
-        memo: "Zapped #{@user.address} on Nostr", # TODO include event ID if given
-        description_hash: Digest::SHA2.hexdigest(zap_metadata(event)),
-      })
+      payment_request = LndhubManager::CreateUserInvoice.call(
+        user: @user, payload: {
+          amount: amount, # sats
+          # TODO should be npub instead of address?
+          memo: "Zapped #{@user.address} on Nostr", # TODO include event ID if given
+          description_hash: Digest::SHA2.hexdigest(zap_metadata(event)),
+        }
+      )
 
       render json: { status: "OK", pr: payment_request }
     end