From 96d9c3ba0d03f608cce0b3ee7b8f8644bf32e6e6 Mon Sep 17 00:00:00 2001
From: Chloe Jung <chloe@onesandzeros.nz>
Date: Tue, 28 Mar 2023 11:27:19 +1300
Subject: [PATCH] Add the tx limit and daily limit check in the lndhub payment
 function

---
 lnurlw/lnurlw_callback.go | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/lnurlw/lnurlw_callback.go b/lnurlw/lnurlw_callback.go
index a2e2a0f..dfdba52 100644
--- a/lnurlw/lnurlw_callback.go
+++ b/lnurlw/lnurlw_callback.go
@@ -38,6 +38,25 @@ func lndhub_payment(w http.ResponseWriter, p *db.Payment, bolt11 decodepay.Bolt1
 		return
 	}
 
+	//check the tx limit 
+	if invoice_sats > c.Tx_limit_sats {
+		log.WithFields(log.Fields{"card_payment_id": p.Card_payment_id}).Info("invoice_sats: ", invoice_sats)
+		log.WithFields(log.Fields{"card_payment_id": p.Card_payment_id}).Info("tx_limit_sats: ", c.Tx_limit_sats)
+		log.WithFields(log.Fields{"card_payment_id": p.Card_payment_id}).Info("over tx_limit_sats!")
+		resp_err.Write(w)
+		return
+	}
+
+	//check the daily limit 
+	if day_total_sats+invoice_sats > c.Day_limit_sats {
+		log.WithFields(log.Fields{"card_payment_id": p.Card_payment_id}).Info("invoice_sats: ", invoice_sats)
+		log.WithFields(log.Fields{"card_payment_id": p.Card_payment_id}).Info("day_total_sats: ", day_total_sats)
+		log.WithFields(log.Fields{"card_payment_id": p.Card_payment_id}).Info("day_limit_sats: ", c.Day_limit_sats)
+		log.WithFields(log.Fields{"card_payment_id": p.Card_payment_id}).Info("over day_limit_sats!")
+		resp_err.Write(w)
+		return
+	}
+
 	//lndhub.auth API call
 	//the login JSON is held in the Card_name field
 	// as "login:password"