#!/run/current-system/sw/bin/bash
set -euo pipefail

detect_dev_host() {
  local ip_bin="/run/current-system/sw/bin/ip"
  [ -x "$ip_bin" ] || { echo "Binaire ip introuvable : $ip_bin" >&2; exit 1; }

  local iface candidate
  iface="$("$ip_bin" -4 route show default | awk 'NR==1 {print $5}')"
  [ -n "$iface" ] || { echo "Impossible de déterminer l'interface par défaut." >&2; exit 1; }

  candidate="$("$ip_bin" -4 addr show dev "$iface" scope global | awk '/inet / {print $2}' | cut -d/ -f1 | head -n1)"
  [ -n "$candidate" ] || { echo "Aucune adresse IPv4 trouvée sur l'interface $iface." >&2; exit 1; }

  printf '%s\n' "$candidate"
}

DEV_HOST="$(detect_dev_host)"
DEV_PORT=1313

hugo server -DEF --bind "$DEV_HOST" --port $DEV_PORT --baseURL "http://$DEV_HOST:$DEV_PORT"