#!@bash@/bin/bash

source /run/secrets.env

# Separate caches for IPv4 and IPv6
cache_v4=/var/lib/cloudflare-ddns/old_ip_v4
cache_v6=/var/lib/cloudflare-ddns/old_ip_v6

# Fetch current IPs
IP_V4=$(@curl@/bin/curl -4 -s 'https://api.ipify.org')
IP_V6=$(@curl@/bin/curl -6 -s 'https://api6.ipify.org')

arr=("" "git." "www." "acs.")

if [[ -n "$IP_V4" ]]; then
  old_ip_v4=$([[ -f "$cache_v4" ]] && cat "$cache_v4" || echo "")
  
  if [[ "$IP_V4" != "$old_ip_v4" ]]; then
    for sub in "${arr[@]}"; do
      RECORD_ID=$(@curl@/bin/curl -s -X GET \
        "https://api.cloudflare.com/client/v4/zones/$ZONE_ID/dns_records" \
        -H "Authorization: Bearer $CLOUDFLARE_API_TOKEN" \
        -H "Content-Type: application/json" \

        | @jq@/bin/jq -r ".result[] | select(.name==\"${sub}syedm.dev\" and .type==\"A\") | .id")

      if [ -n "$RECORD_ID" ]; then
        @curl@/bin/curl -s -X PUT \
          "https://api.cloudflare.com/client/v4/zones/$ZONE_ID/dns_records/$RECORD_ID" \
          -H "Authorization: Bearer $CLOUDFLARE_API_TOKEN" \
          -H "Content-Type: application/json" \
          -d "{\"type\":\"A\",\"name\":\"${sub}syedm.dev\",\"content\":\"$IP_V4\",\"ttl\":3600,\"proxied\":false}"
      fi
    done
    echo "$IP_V4" > "$cache_v4"
  fi
fi

if [[ -n "$IP_V6" ]]; then
  old_ip_v6=$([[ -f "$cache_v6" ]] && cat "$cache_v6" || echo "")
  
  if [[ "$IP_V6" != "$old_ip_v6" ]]; then
    for sub in "${arr[@]}"; do
      RECORD_ID=$(@curl@/bin/curl -s -X GET \
        "https://api.cloudflare.com/client/v4/zones/$ZONE_ID/dns_records" \
        -H "Authorization: Bearer $CLOUDFLARE_API_TOKEN" \
        -H "Content-Type: application/json" \

        | @jq@/bin/jq -r ".result[] | select(.name==\"${sub}syedm.dev\" and .type==\"AAAA\") | .id")

      if [ -n "$RECORD_ID" ]; then
        @curl@/bin/curl -s -X PUT \
          "https://api.cloudflare.com/client/v4/zones/$ZONE_ID/dns_records/$RECORD_ID" \
          -H "Authorization: Bearer $CLOUDFLARE_API_TOKEN" \
          -H "Content-Type: application/json" \
          -d "{\"type\":\"AAAA\",\"name\":\"${sub}syedm.dev\",\"content\":\"$IP_V6\",\"ttl\":3600,\"proxied\":false}"
      fi
    done
    echo "$IP_V6" > "$cache_v6"
  fi
fi