#!/bin/bash
  set -euo pipefail

  echo "== Identity files =="
  ls -l /etc/machine-id || true
  cat /etc/machine-id || true
  [ -e /var/lib/dbus/machine-id ] && echo "dbus machine-id exists" || echo "dbus machine-id missing (expected)"
  ls -l /var/lib/systemd/random-seed || true

  echo -e "\n== SSH host keys =="
  ls /etc/ssh/ssh_host_* 2>/dev/null || echo "no host keys (expected)"

  echo -e "\n== SSH client traces =="
  for f in /root/.ssh/known_hosts /home/dietpi/.ssh/known_hosts /home/dietpi/.ssh/authorized_keys; do
    if [ -e "$f" ]; then
      printf "%s: size %s\n" "$f" "$(stat -c%s "$f")"
      [ -s "$f" ] && echo "  WARNING: not empty"
    else
      echo "$f: missing"
    fi
  done

  echo -e "\n== Ready flag =="
  [ -e /var/run/pikit-ready ] && echo "READY FLAG STILL PRESENT" || echo "ready flag absent (expected)"

  echo -e "\n== Logs =="
  du -sh /var/log 2>/dev/null
  du -sh /var/log/nginx 2>/dev/null
  find /var/log -type f -maxdepth 2 -printf "%p %s bytes\n"

  echo -e "\n== DietPi RAM logs =="
  if [ -d /var/tmp/dietpi/logs ]; then
    find /var/tmp/dietpi/logs -type f -printf "%p %s bytes\n"
  else
    echo "/var/tmp/dietpi/logs missing"
  fi

  echo -e "\n== Caches =="
  du -sh /var/cache/apt /var/lib/apt/lists /var/cache/debconf 2>/dev/null || true

  echo -e "\n== Temp dirs =="
  du -sh /tmp /var/tmp 2>/dev/null || true
  find /tmp /var/tmp -maxdepth 1 -mindepth 1 ! -name 'systemd-private-*' -print

  echo -e "\n== DHCP lease =="
  ls -l /var/lib/dhcp/dhclient.eth0.leases 2>/dev/null || echo "lease file missing (expected)"

  echo -e "\n== Nginx cache dirs =="
  [ -d /var/lib/nginx ] && find /var/lib/nginx -maxdepth 2 -type d -print || echo "/var/lib/nginx missing"