# #!/usr/bin/env bash
#
# # Check if PID is provided
# if [ -z "$1" ]; then
#     echo "Usage: $0 <PID>"
#     exit 1
# fi
#
# PID=$1
#
# # Verify if PID exists
# if ! ps -p "$PID" >/dev/null; then
#     echo "Error: Process with PID $PID does not exist."
#     exit 1
# fi
#
# # Get VmRSS from /proc/<PID>/status
# VMRSS=$(grep VmRSS /proc/"$PID"/status | awk '{print $2}')
#
# # Check if VmRSS was found
# if [ -z "$VMRSS" ]; then
#     echo "Error: Could not retrieve VmRSS for PID $PID."
#     exit 1
# fi
#
# # Convert to human-readable format (MB)
# VMRSS_MB=$(echo "scale=2; $VMRSS / 1024" | bc)
#
# echo "Process $PID VmRSS: $VMRSS kB ($VMRSS_MB MB)"

#!/usr/bin/env bash

INTERVAL="${1:-1}"

printf "%-8s %-6s %-6s %-10s %s\n" \
  "TIME" "PID" "RT" "RSS(MB)" "CMD"

while true; do
  TS=$(date +%H:%M:%S)

  ps ax -o pid=,comm=,cmd= | awk '$2 ~ /^(node|nodejs|bun)$/ { print }' | \
  while read -r PID COMM CMD; do
    STATUS="/proc/$PID/status"
    [ ! -r "$STATUS" ] && continue

    RSS_KB=$(awk '/VmRSS/ {print $2}' "$STATUS")
    [ -z "$RSS_KB" ] && continue

    RSS_MB=$(awk "BEGIN { printf \"%.1f\", $RSS_KB/1024 }")

    RT=$(case "$COMM" in
      bun*) echo "bun" ;;
      node*) echo "node" ;;
      *) echo "js" ;;
    esac)

    printf "%-8s %-6s %-6s %-10s %s\n" \
      "$TS" "$PID" "$RT" "$RSS_MB" "$CMD"
  done

  sleep "$INTERVAL"
done