#!/bin/bash

# ==========================================================
# CONFIGURATION
# ==========================================================
# 1. Enter your Cloudflare credentials here:
auth_token=""
zone_id=""

# 2. List all subdomains you want to update inside the parentheses.
#    Separate them with spaces.
records_list=(
    ""
    # <-- You can easily add more later in quotation marks
)
# ==========================================================

# 1. Get your current Public IP from the internet (Only need to do this once)
echo "--------------------------------------------------"
echo "Checking current Public IP..."
ip=$(curl -s -4 https://ifconfig.me)

if [ -z "$ip" ]; then
  echo "Error: Could not find your public IP."
  exit 1
fi

echo "Detected Public IP: $ip"
echo "--------------------------------------------------"

# 2. Loop through each record in our list
for record_name in "${records_list[@]}"; do
    echo "Processing: $record_name"

    # A. Get the specific "Record ID" for this specific subdomain
    record_info=$(curl -s -X GET "https://api.cloudflare.com/client/v4/zones/$zone_id/dns_records?type=A&name=$record_name" \
         -H "Authorization: Bearer $auth_token" \
         -H "Content-Type: application/json")

    # Extract the ID
    record_identifier=$(echo "$record_info" | jq -r '{"result"}[] | .[0] | .id')

    if [ "$record_identifier" == "null" ] || [ -z "$record_identifier" ]; then
        echo "  [!] Error: Could not find record ID for $record_name."
        echo "      Make sure this record actually exists in your Cloudflare dashboard."
        echo "--------------------------------------------------"
        continue # Skip to the next domain in the list
    fi

    # B. Send the new IP to Cloudflare
    # 'proxied': false is maintained (Grey Cloud) for game/voice servers
    update=$(curl -s -X PUT "https://api.cloudflare.com/client/v4/zones/$zone_id/dns_records/$record_identifier" \
         -H "Authorization: Bearer $auth_token" \
         -H "Content-Type: application/json" \
         --data "{\"type\":\"A\",\"name\":\"$record_name\",\"content\":\"$ip\",\"ttl\":120,\"proxied\":false}")

    # C. Check if it worked
    success=$(echo "$update" | jq -r '.success')

    if [ "$success" == "true" ]; then
        echo "  [✓] SUCCESS: Updated to $ip"
    else
        echo "  [X] FAILURE. Cloudflare response:"
        echo "$update" | jq .errors
    fi
    echo "--------------------------------------------------"
done

echo "All updates complete."