#!/usr/bin/env bash
# ─────────────────────────────────────────────────────────────
#  porkbun-ddns-test.sh
#  Version de prueba — solo actualiza git.carloselugo.com
# ─────────────────────────────────────────────────────────────

source /opt/ddns/.ddns-env

DOMAIN="carloselugo.com"
SUBDOMAINS=("git")

LOG_FILE="/home/netintel/porkbun-ddns-test.log"
API_BASE="https://api.porkbun.com/api/json/v3"

log() { echo "[$(date '+%Y-%m-%d %H:%M:%S')] $*" | tee -a "$LOG_FILE" >&2; }
 
get_public_ip() {
  local ip
  ip=$(curl -4 -sf --max-time 5 https://api.ipify.org) ||
  ip=$(curl -4 -sf --max-time 5 https://ifconfig.me)   ||
  ip=$(curl -4 -sf --max-time 5 https://icanhazip.com)
  echo "$ip"
}
 
get_dns_ip() {
  local subdomain="$1"
  local response
  response=$(curl -4 -sf --max-time 10 \
    -X POST "$API_BASE/dns/retrieveByNameType/$DOMAIN/A/$subdomain" \
    -H "Content-Type: application/json" \
    -d "{\"apikey\":\"$API_KEY\",\"secretapikey\":\"$SECRET_KEY\"}")
  log "  [API retrieve] $response"
  echo "$response" | grep -o '"content":"[^"]*"' | head -1 | cut -d'"' -f4
}
 
update_record() {
  local subdomain="$1"
  local new_ip="$2"
  # editByNameType — no record ID needed, no risk of accidental create
  local result
  result=$(curl -4 -sf --max-time 10 \
    -X POST "$API_BASE/dns/editByNameType/$DOMAIN/A/$subdomain" \
    -H "Content-Type: application/json" \
    -d "{\"apikey\":\"$API_KEY\",\"secretapikey\":\"$SECRET_KEY\",\"content\":\"$new_ip\",\"ttl\":\"600\"}")
  log "  [API editByNameType] $result"
  echo "$result" | grep -o '"status":"[^"]*"' | head -1 | cut -d'"' -f4
}
 
main() {
  log "=== PRUEBA INICIADA ==="
 
  local forced_ip=""
  while getopts "f:" opt; do
    case $opt in
      f) forced_ip="$OPTARG" ;;
      *) echo "Uso: $0 [-f <ip>]"; exit 1 ;;
    esac
  done
 
  local current_ip
  if [ -n "$forced_ip" ]; then
    current_ip="$forced_ip"
    log "IP forzada manualmente: $current_ip"
  else
    current_ip=$(get_public_ip)
    if [ -z "$current_ip" ]; then
      log "ERROR: No se pudo obtener la IP pública."
      exit 1
    fi
    log "IP pública actual: $current_ip"
  fi
 
  for subdomain in "${SUBDOMAINS[@]}"; do
    log "── Procesando: $subdomain ──"
 
    local dns_ip
    dns_ip=$(get_dns_ip "$subdomain")
    log "  IP en DNS: ${dns_ip:-'(no encontrada)'}"
 
    if [ "$current_ip" = "$dns_ip" ]; then
      log "  [$subdomain] Ya está actualizado ($current_ip). No se hace nada."
      continue
    fi
 
    log "  [$subdomain] Actualizando: ${dns_ip:-'?'} → $current_ip"
    local status
    status=$(update_record "$subdomain" "$current_ip")
 
    if [ "$status" = "SUCCESS" ]; then
      log "  [$subdomain] ✓ Actualizado correctamente."
    else
      log "  [$subdomain] ✗ Falló. Status: $status"
    fi
  done
 
  log "=== PRUEBA TERMINADA ==="
}
 
main "$@"