#!/usr/bin/env bash
set -euo pipefail

# Mid/Large MT (8–32KiB) matrix runner
# Usage: benchmarks/scripts/run_mid_large_mt_matrix.sh [threads_csv] [cycles] [ws] [reps]

ROOT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")"/../.. && pwd)"
cd "$ROOT_DIR"

threads_csv=${1:-"1,4"}
cycles=${2:-40000}
ws=${3:-2048}
reps=${4:-5}

outdir="bench_results/auto/mid_large_mt_$(date +%Y%m%d_%H%M%S)"
mkdir -p "$outdir"
csv="$outdir/results.csv"
echo "ts,scenario,threads,allocator,env,cycles,ws,rep,throughput_ops_s" >"$csv"

IFS=',' read -ra TLIST <<<"$threads_csv"

run_case() {
  local thr="$1"; shift
  local alloc="$1"; shift
  local envstr="$1"; shift
  local bin="$1"; shift
  for ((i=1;i<=reps;i++)); do
    local ts=$(date +%H%M%S)
    local out
    out=$($envstr "$bin" "$thr" "$cycles" "$ws" 42 2>/dev/null || true)
    local tput=$(echo "$out" | awk '/Throughput =/{print $3; exit}')
    if [[ -n "${tput:-}" ]]; then
      echo "$ts,mid_large_mt,$thr,$alloc,$(echo "$envstr" | sed 's/,/;/g'),$cycles,$ws,$i,$tput" >>"$csv"
    fi
  done
}

[[ -x ./bench_mid_large_mt_system ]] || make -s bench_mid_large_mt_system >/dev/null
[[ -x ./bench_mid_large_mt_hakmem ]] || make -s bench_mid_large_mt_hakmem >/dev/null

echo "[info] writing CSV to $csv"
for t in "${TLIST[@]}"; do
  run_case "$t" "system" "env -i" ./bench_mid_large_mt_system
  run_case "$t" "hakmem" "env -i HAKMEM_WRAP_TINY=1" ./bench_mid_large_mt_hakmem
done
echo "[done] $csv"