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

LIMIT="${PCMT_HF_LIMIT:-80}"
REPEATS_DETECTOR="${PCMT_DETECTOR_REPEATS:-4096}"
REPEATS_SWEEP="${PCMT_SWEEP_REPEATS:-16384}"
DATASET="${PCMT_BENCHMARK_DATASET:-youcook2}"
RUN_TAG="${PCMT_RUN_TAG:-benchmark}"
STAMP="$(date -u +%Y%m%dT%H%M%SZ)"

mkdir -p runs
TELEMETRY="runs/gpu_telemetry_${RUN_TAG}_${STAMP}.csv"
LOG="runs/long_${RUN_TAG}_gpu_${STAMP}.log"

exec > >(tee -a "${LOG}") 2>&1

echo "[pcmt] start ${STAMP}"
echo "[pcmt] dataset=${DATASET} tag=${RUN_TAG} limit=${LIMIT} detector_repeats=${REPEATS_DETECTOR} sweep_repeats=${REPEATS_SWEEP}"
nvidia-smi || true

(nvidia-smi --query-gpu=timestamp,name,utilization.gpu,memory.used,memory.total,temperature.gpu --format=csv -l 2 > "${TELEMETRY}" 2>&1 & echo $! > "runs/gpu_telemetry_${RUN_TAG}.pid")
cleanup() {
  if [ -f "runs/gpu_telemetry_${RUN_TAG}.pid" ]; then
    kill "$(cat "runs/gpu_telemetry_${RUN_TAG}.pid")" 2>/dev/null || true
  fi
}
trap cleanup EXIT

python3 -m pcmt.cli download-benchmark --dataset "${DATASET}" --limit "${LIMIT}" --output "data/benchmark_videos/${DATASET}"
VIDEO_ROOT="data/benchmark_videos/${DATASET}"
COUNT="$(find "${VIDEO_ROOT}" -maxdepth 1 -type f -name '*.mp4' | wc -l | tr -d ' ')"
if [ "${COUNT}" = "0" ]; then
  python3 -m pcmt.cli download-benchmark --dataset ave --limit "${LIMIT}" --output data/benchmark_videos/ave
  VIDEO_ROOT="data/benchmark_videos/ave"
  COUNT="$(find "${VIDEO_ROOT}" -maxdepth 1 -type f -name '*.mp4' | wc -l | tr -d ' ')"
fi

echo "[pcmt] video_root=${VIDEO_ROOT} count=${COUNT}"
python3 -m pcmt.cli run-detector --clips "${COUNT}" --output "runs/${RUN_TAG}-detector-gpu" --video-root "${VIDEO_ROOT}" --use-gpu cuda --stress-repeats "${REPEATS_DETECTOR}"
python3 -m pcmt.cli run-sweep --input-run detector --clips "${COUNT}" --output "runs/${RUN_TAG}-sweep-gpu" --video-root "${VIDEO_ROOT}" --use-gpu cuda --stress-repeats "${REPEATS_SWEEP}"
python3 -m pcmt.cli sweep-figures --traces "runs/${RUN_TAG}-sweep-gpu/sweep_traces.csv" --metrics "runs/${RUN_TAG}-sweep-gpu/sweep_metrics.json" --output figures

echo "[pcmt] finished ${STAMP}"
tail -20 "${TELEMETRY}" || true