#!/usr/bin/env bash
# Poll Proxmox hypervisor hardware (CPU/RAM/disk/NIC/pvesm) over SSH with key auth.
# Also records cluster membership from the first reachable seed host.
#
# Usage:
#   bash scripts/verify/poll-proxmox-cluster-hardware.sh
#   OUT=/path/to/report.txt bash scripts/verify/poll-proxmox-cluster-hardware.sh
#
# Requires: ping, ssh (BatchMode / keys to root@hosts), optional cluster read via SEED_HOST.
set -euo pipefail

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
PROJECT_ROOT="$(cd "$SCRIPT_DIR/../.." && pwd)"
# shellcheck source=/dev/null
source "${PROJECT_ROOT}/config/ip-addresses.conf" 2>/dev/null || true

SEED_HOST="${SEED_HOST:-${PROXMOX_HOST_R630_01:-192.168.11.11}}"
HOSTS=(
  "${PROXMOX_HOST_ML110:-192.168.11.10}"
  "${PROXMOX_HOST_R630_01:-192.168.11.11}"
  "${PROXMOX_HOST_R630_02:-192.168.11.12}"
  "${PROXMOX_HOST_R630_03:-192.168.11.13}"
  "${PROXMOX_HOST_R630_04:-192.168.11.14}"
)

TS="$(date +%Y%m%d_%H%M%S)"
OUT="${OUT:-${PROJECT_ROOT}/reports/status/hardware_poll_${TS}.txt}"
mkdir -p "$(dirname "$OUT")"

REMOTE_BODY=$(cat <<'EOS'
echo "=== HOST === $(hostname -f 2>/dev/null || hostname)"
echo "=== DMI ==="
if command -v dmidecode >/dev/null 2>&1; then
  printf '%s | %s | SN:%s\n' \
    "$(dmidecode -s system-manufacturer 2>/dev/null)" \
    "$(dmidecode -s system-product-name 2>/dev/null)" \
    "$(dmidecode -s system-serial-number 2>/dev/null)"
fi
echo "=== CPU ==="
lscpu 2>/dev/null | grep -E '^(Architecture|CPU op-mode|Model name|Socket|Core|Thread|CPU\\(s\\)|CPU max MHz|CPU min MHz)' || true
echo "=== RAM ==="
free -h
echo "=== DISKS ==="
lsblk -d -o NAME,SIZE,TYPE,MODEL,ROTA,SERIAL 2>/dev/null || true
echo "=== PVE ==="
pveversion -v 2>/dev/null | head -3 || echo "not pve"
echo "=== pvesm ==="
pvesm status 2>/dev/null || true
echo "=== NIC PCI ==="
lspci -nn 2>/dev/null | grep -iE 'ethernet|network' || true
echo "=== vmbr0 addr ==="
ip -br addr show vmbr0 2>/dev/null || true
EOS
)

{
  echo "hardware_poll $(date -Is)"
  echo "SSH BatchMode=yes root@HOST"
  echo "========================================"
  echo ""
  echo "=== Cluster (from seed ${SEED_HOST}) ==="
  if ping -c1 -W1 "${SEED_HOST}" >/dev/null 2>&1; then
    ssh -o BatchMode=yes -o ConnectTimeout=10 -o StrictHostKeyChecking=no \
      "root@${SEED_HOST}" "pvecm status 2>/dev/null; echo '---'; pvecm nodes 2>/dev/null; echo '---'; grep ring0_addr /etc/pve/corosync.conf 2>/dev/null" \
      || echo "(cluster query failed)"
  else
    echo "(seed unreachable)"
  fi
  echo ""

  for ip in "${HOSTS[@]}"; do
    echo ""
    echo "########################################"
    echo "# ${ip}"
    echo "########################################"
    if ! ping -c1 -W1 "${ip}" >/dev/null 2>&1; then
      echo "(no ping)"
      continue
    fi
    if ! ssh -o BatchMode=yes -o ConnectTimeout=12 -o StrictHostKeyChecking=no \
      "root@${ip}" "bash -lc $(printf '%q' "$REMOTE_BODY")" 2>/dev/null; then
      echo "(SSH failed — keys or root login)"
    fi
  done
} | tee "${OUT}"

echo ""
echo "Wrote: ${OUT}"