#! /usr/bin/env bash
# Vultr Add DNS Record 

api_url="https://api.vultr.com/v2"
api_key=${VULTR_API_KEY:-''}


domain="$1"
challenge="$2"

root=$(echo "$domain" | awk -F\. '{print $(NF-1) FS $NF}')
subdomain="_acme-challenge.${domain%.$root}"

if [[ -z "$VULTR_API_KEY" ]]; then
  echo "VULTR_API_KEY variable not set"
  exit 1
fi

function create {
curl "${api_url}/domains/$1/records" -s -o /dev/null -X POST -H "Authorization: Bearer ${VULTR_API_KEY}" -H "Content-Type: application/json" \
  --data "{
    \"name\" : \"$2\",
    \"type\" : \"TXT\",
    \"data\" : \"${challenge}\",
    \"ttl\" : 300,
    \"priority\" : 0
  }"
}

create $root $subdomain