#!/bin/bash

#Variable Declaration - Change These
ACCESS_TOKEN="f16b8a3fe210f45008b8fec192432ca85b2765c2dac7e5bcd214de242272449b"
PINGID="a89477fc-2660-4bfc-baf4-ef330bcf1df5"
DOMAINID="1851003"
RECORDID="21559687"
NAME="git"
TYPE="A"
TTL=300

#get current IP address
IP=$(curl http://checkip.amazonaws.com/)

#validate IP address (makes sure Route 53 doesn't get updated with a malformed payload)
if [[ ! $IP =~ ^[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}$ ]]; then
	exit 1
fi

curl -H "Authorization: Bearer $ACCESS_TOKEN" https://api.linode.com/v4/domains/$DOMAINID/records/$RECORDID | \
jq -r 'select (.name="'"tester"'")|(.type="'"A"'")|.target' > /tmp/linode_${NAME}_value

cat /tmp/linode_${NAME}_value

#check if IP is different from Route 53
if grep -Fxq "$IP" /tmp/linode_${NAME}_value; then
	echo "IP Has Not Changed, Exiting"
	curl -m 10 --retry 5 https://hc-ping.com/${PINGID}
	exit 1
fi

 curl -H "Content-Type: application/json" \
    -H "Authorization: Bearer $ACCESS_TOKEN" \
    -X PUT -d '{
      "type": "'$TYPE'",
      "name": "'$NAME'",
      "target": "'$IP'",
      "priority": 50,
      "weight": 50,
      "port": 80,
      "service": null,
      "protocol": null,
      "ttl_sec": 300,
      "tag": null
    }' \
    https://api.linode.com/v4/domains/$DOMAINID/records/$RECORDID


# if good

curl -m 10 --retry 5 https://hc-ping.com/${PINGID}/99