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

if [[ $# -lt 3 ]]; then
  cat >&2 <<'USAGE'
Usage:
  launch_fixed_budget_queue.sh <manifest.tsv> <fake_methods|real_domains> <class_seed>

Environment:
  PERSIST_ROOT=/mnt/bn/search-aipf-haoyu/wenhaowang/ScaleDF_rebuttal
  PACKAGE_ROOT=/tmp/ScaleDF_repro_20260724
  SCALEDF_DATA=/dev/shm/scaledf_bind_storage/ScaleDF
  EPOCHS=20
  BATCH_PER_GPU=256
USAGE
  exit 1
fi

MANIFEST="$1"
FAMILY="$2"
CLASS_SEED="$3"

ROOT="${PERSIST_ROOT:-/mnt/bn/search-aipf-haoyu/wenhaowang/ScaleDF_rebuttal}"
PACKAGE_ROOT="${PACKAGE_ROOT:-/tmp/ScaleDF_repro_20260724}"
LAUNCHER="$ROOT/launch_rebuttal_diversity_train.sh"
HOST="$(hostname)"
STAMP="$(date -u +%Y%m%d_%H%M%S)"
QUEUE_DIR="$ROOT/queues/fixed500000_${FAMILY}_seed${CLASS_SEED}_queue_${HOST}_${STAMP}"
QUEUE_LOG="$QUEUE_DIR/queue.driver.log"
SUBSET="$QUEUE_DIR/manifest_subset.tsv"

mkdir -p "$QUEUE_DIR"
echo $$ > "$QUEUE_DIR/driver.pid"

if [[ ! -f "$MANIFEST" ]]; then
  echo "manifest not found: $MANIFEST" >&2
  exit 2
fi
if [[ ! -x "$LAUNCHER" ]]; then
  echo "launcher not executable: $LAUNCHER" >&2
  exit 2
fi

awk -F'\t' -v family="$FAMILY" -v seed="$CLASS_SEED" '
  BEGIN { OFS = "\t" }
  NR == 1 {
    print "family", "level", "class_seed", "real_images", "fake_images", "status", "path"
    next
  }
  $1 == family && $3 == seed && $6 == "ok" { print $1, $2, $3, $4, $5, $6, $8 }
' "$MANIFEST" > "$SUBSET"

{
  echo "started_utc=$(date -u +%Y-%m-%dT%H:%M:%SZ)"
  echo "hostname=$HOST"
  echo "manifest=$MANIFEST"
  echo "family=$FAMILY"
  echo "class_seed=$CLASS_SEED"
  echo "subset=$SUBSET"
  echo "queue_dir=$QUEUE_DIR"
  echo "epochs=${EPOCHS:-20}"
  echo "batch_per_gpu=${BATCH_PER_GPU:-256}"
} | tee -a "$QUEUE_LOG"

tail -n +2 "$SUBSET" | while IFS=$'\t' read -r family level class_seed real_images fake_images status selection; do
  [[ -n "${selection:-}" ]] || continue
  RUN_NAME="fixed500000_${family}_fs_n${level}_classseed${class_seed}_${HOST}_$(date -u +%Y%m%d_%H%M%S)"
  echo "=== RUN $RUN_NAME $(date -u +%Y-%m-%dT%H:%M:%SZ) ===" | tee -a "$QUEUE_LOG"
  echo "selection=$selection real_images=$real_images fake_images=$fake_images" | tee -a "$QUEUE_LOG"
  if EPOCHS="${EPOCHS:-20}" \
      BATCH_PER_GPU="${BATCH_PER_GPU:-256}" \
      NPROC_PER_NODE="${NPROC_PER_NODE:-8}" \
      SEED="$class_seed" \
      PERSIST_ROOT="$ROOT" \
      PACKAGE_ROOT="$PACKAGE_ROOT" \
      SCALEDF_DATA="${SCALEDF_DATA:-/dev/shm/scaledf_bind_storage/ScaleDF}" \
      "$LAUNCHER" nrealfake "$selection" "$RUN_NAME" 2>&1 | tee -a "$QUEUE_LOG"; then
    echo "=== DONE $RUN_NAME $(date -u +%Y-%m-%dT%H:%M:%SZ) ===" | tee -a "$QUEUE_LOG"
  else
    rc=$?
    echo "=== FAILED rc=$rc $RUN_NAME $(date -u +%Y-%m-%dT%H:%M:%SZ) ===" | tee -a "$QUEUE_LOG"
  fi
done

echo "=== QUEUE DONE $(date -u +%Y-%m-%dT%H:%M:%SZ) ===" | tee -a "$QUEUE_LOG"