From 9039a0f1b236ab6c7f96d4d133050add1df7b818 Mon Sep 17 00:00:00 2001
From: /rootzoll <christian@geektank.de>
Date: Mon, 30 Sep 2024 19:07:02 +0200
Subject: [PATCH] #4049 Warn when less then 8GB on BTCPay Install (#4754)

* #4049 warn when less then 8GB on BTCPay Install
---
 home.admin/00settingsMenuServices.sh | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/home.admin/00settingsMenuServices.sh b/home.admin/00settingsMenuServices.sh
index a3819a156..8c74e9887 100755
--- a/home.admin/00settingsMenuServices.sh
+++ b/home.admin/00settingsMenuServices.sh
@@ -254,6 +254,17 @@ choice="off"; check=$(echo "${CHOICES}" | grep -c "pa")
 if [ ${check} -eq 1 ]; then choice="on"; fi
 if [ "${BTCPayServer}" != "${choice}" ]; then
   echo "BTCPayServer setting changed .."
+
+  #4049 warn if system has less than 8GB RAM
+  ramGB=$(free -g | awk '/^Mem:/{print $2}')
+  if [ "${choice}" =  "on" ] && [ ${ramGB} -lt 7 ]; then
+    whiptail --title "Your RaspiBlitz has less than the recommended 8GB of RAM to run BTCPayServer.\nDo you really want to proceed?" 10 50 --defaultno --yes-button "Continue" --no-button "Cancel"
+    if [ $? -eq 1 ]; then
+      # if user choosed CANCEL just null the choice
+      choice=""
+    fi
+  fi
+
   # check if TOR is installed
   source /mnt/hdd/raspiblitz.conf
   if [ "${choice}" =  "on" ] && [ "${runBehindTor}" = "off" ]; then