#!/usr/bin/env bash
# measure-startup.sh <runs> [-- extra java args...]
# Starts the jar, waits for the "Started ... in Ns" line, records it, stops, repeats.
set -uo pipefail
source "$(dirname "$0")/env.sh"

RUNS="${1:-5}"; shift || true
[ "${1:-}" = "--" ] && shift

for i in $(seq 1 "$RUNS"); do
  LOG=$(mktemp)
  "$JAVA_HOME/bin/java" "$@" -jar "$JAR" > "$LOG" 2>&1 &
  PID=$!
  for _ in $(seq 1 120); do
    grep -q 'Started StartupDiagnosisApplication' "$LOG" && break
    kill -0 $PID 2>/dev/null || break
    sleep 0.25
  done
  grep -h 'Started StartupDiagnosisApplication' "$LOG" | sed 's/.*Started/Started/'
  kill -9 $PID 2>/dev/null || true
  wait $PID 2>/dev/null
  rm -f "$LOG"
  sleep 1
done