#!/usr/bin/env bash
# Collects wake-from-sleep samples: every 2 minutes, any app whose instance
# the platform's own log says is asleep (latest event "stopping"/"exited")
# gets one first request timed. After a sample an app is left alone for at
# least 16 minutes (the idle window is 15), because the log is flushed
# periodically and can lag. Runs until every app has <samples> samples.
# Nothing else may touch the apps meanwhile.
#   scripts/measure-wake.sh [samples] [slug...]
set -uo pipefail
cd "$(dirname "$0")/.."
want=${1:-3}; shift || true
slugs=("$@")
[ ${#slugs[@]} -gt 0 ] || slugs=(go go-rastrillo rust zig ocaml haskell swift nim spinel)
declare -A last
have() { python3 -c "import json,sys; print(len(json.load(open('results/$1.json')).get('Wake') or []))"; }
while :; do
  left=0
  now=$(date +%s)
  for s in "${slugs[@]}"; do
    n=$(have "$s")
    [ "$n" -ge "$want" ] && continue
    left=1
    [ $(( now - ${last[$s]:-0} )) -lt 960 ] && continue
    if bakeoff wake --slug "$s"; then
      last[$s]=$(date +%s)
      echo "$(date +%H:%M) $s sample $((n+1))"
    fi
  done
  [ $left = 0 ] && break
  sleep 120
done
echo "wake: done"