#!/usr/bin/env bash

set -euo pipefail

INTERVAL_SECONDS=${1:-10}
LOG_FILE=${2:-/root/monitor_mtdi_galaxy.log}

if ! [[ "$INTERVAL_SECONDS" =~ ^[0-9]+$ ]] || (( INTERVAL_SECONDS <= 0 )); then
  echo "Usage: $0 [INTERVAL_SECONDS] [LOG_FILE]" >&2
  exit 1
fi

echo "# monitor start $(date '+%Y-%m-%d %H:%M:%S') interval=${INTERVAL_SECONDS}s" >>"$LOG_FILE"

while true; do
  {
    echo "=== $(date '+%Y-%m-%d %H:%M:%S') ==="
    ps -eo pid,ppid,comm,args,%cpu,%mem,rss,vsz --sort=-%cpu | \
      awk '/mtdi-daemon|galaxy-migrate/ && $0 !~ /awk/ {
        printf "pid=%s ppid=%s comm=%s cpu=%s mem=%s rss_kb=%s vsz_kb=%s cmd=%s\n",
          $1, $2, $3, $5, $6, $7, $8, substr($0, index($0, $4))
      }'
    echo
  } >>"$LOG_FILE"
  sleep "$INTERVAL_SECONDS"
done