pathScripts/cf

#!/bin/bash
if [ "$EUID" -ne 0 ]; then
  echo "This script must be run as root. Try using 'sudo'."
  exit 1
fi
source /home/sij/.zshrc
source /home/sij/.GLOBAL_VARS
ddns

# Initialize variables
full_domain=$1
shift # Shift the arguments to left so we can get remaining arguments as before
caddyIP="" # Optional IP for Caddyfile
port=""

# Fixed IP for Cloudflare from ip.txt
cloudflareIP=$(cat /home/sij/.services/ip.txt)
api_key=$CF_API_KEY
cf_domains_file=/home/sij/.services/cf_domains.json

# Usage message
usage() {
    echo "Usage: $0 <full-domain> [--ip <ip address>] --port <port>"
    echo "Note: <full-domain> is required and can be a subdomain or a full domain."
    exit 1
}

# Parse command-line arguments
while [[ $# -gt 0 ]]; do
    case $1 in
        --ip|-i)
            caddyIP="$2"
            shift 2
            ;;
        --port|-p)
            port="$2"
            shift 2
            ;;
        *)
            usage
            ;;
    esac
done

# Check required parameter
if [[ -z "$full_domain" ]] || [[ -z "$port" ]]; then
    usage
fi

# Extract subdomain and domain
subdomain=$(echo "$full_domain" | awk -F"." '{print $1}')
remaining_parts=$(echo "$full_domain" | awk -F"." '{print NF}')
if [ "$remaining_parts" -eq 2 ]; then
  # Handle root domain (e.g., env.esq)
  domain=$full_domain
  subdomain="@"  # Use "@" for root domain
else
  # Handle subdomain (e.g., sub.env.esq)
  domain=$(echo "$full_domain" | sed "s/^$subdomain\.//")
fi

# Default to localhost for Caddyfile if IP is not provided via --ip
if [[ -z "$caddyIP" ]]; then
    caddyIP="localhost"
fi

# Extract zone_id from JSON file
zone_id=$(jq -r ".\"$domain\".zone_id" "$cf_domains_file")

# Check if zone_id was successfully retrieved
if [ "$zone_id" == "null" ] || [ -z "$zone_id" ]; then
    echo "Error: Zone ID for $domain could not be found."
    exit 1
fi

# API call setup for Cloudflare A record using the fixed IP from ip.txt
endpoint="https://api.cloudflare.com/client/v4/zones/$zone_id/dns_records"
data="{\"type\":\"A\",\"name\":\"$subdomain\",\"content\":\"$cloudflareIP\",\"ttl\":120,\"proxied\":true}"

# Make API call
response=$(curl -s -X POST "$endpoint" -H "Authorization: Bearer $api_key" -H "Content-Type: application/json" --data "$data")

# Parse response
record_id=$(echo "$response" | jq -r '.result.id')
success=$(echo "$response" | jq -r '.success')
error_message=$(echo "$response" | jq -r '.errors[0].message')
error_code=$(echo "$response" | jq -r '.errors[0].code')

# Function to update Caddyfile with correct indentation
update_caddyfile() {
    echo "$full_domain {
    reverse_proxy $caddyIP:$port
    tls {
        dns cloudflare {env.CLOUDFLARE_API_TOKEN}
    }
}" >> /etc/caddy/Caddyfile
    echo "Configuration appended to /etc/caddy/Caddyfile with correct formatting."
}

# Check for success or specific error to update Caddyfile
if [ "$success" == "true" ]; then
    jq ".\"$domain\".subdomains[\"$full_domain\"] = \"$record_id\"" "$cf_domains_file" > temp.json && mv temp.json "$cf_domains_file"
    echo "A record created and cf_domains.json updated successfully."
    update_caddyfile
elif [ "$error_message" == "Record already exists." ]; then
    echo "Record already exists. Updating Caddyfile anyway."
    update_caddyfile
else
    echo "Failed to create A record. Error: $error_message (Code: $error_code)"
fi

echo "Restarting caddy!"
sudo systemctl restart caddy