#!/usr/bin/env bash
# Sweep all 6 perturbations x 5 levels = 30 robustness runs for CTA.
# Mirrors X-AVDT's robustness sweep.
#
# Usage:
#   bash scripts/analysis/run_robustness_sweep.sh \
#       <ckpt> <data_config> [demographics_csv]
#
# Examples:
#   # On the diffusion-only test split (held-out 3 families inside ours):
#   bash scripts/analysis/run_robustness_sweep.sh \
#       outputs/cta_diffusion_combined_20260604_205145/checkpoints/epoch16-valauc1.0000.ckpt \
#       fairtalking_diffusion_only \
#       /apdcephfs_gy4/share_303628665/joywu/research/test.csv
#
#   # Or on the held-out family test sets one by one:
#   bash scripts/analysis/run_robustness_sweep.sh <ckpt> fairtalking_test_sadtalker
#   bash scripts/analysis/run_robustness_sweep.sh <ckpt> fairtalking_test_edtalk
#   bash scripts/analysis/run_robustness_sweep.sh <ckpt> fairtalking_test_float
#
# Output: results appended to outputs/analysis/robustness/cta_runs_<TS>.json
set -euo pipefail
cd "$(dirname "$0")/../.."

[ -f .env ] && set -a && . ./.env && set +a

CKPT="${1:-}"
DATA="${2:-fairtalking_diffusion_only}"
DEMO="${3:-}"

if [[ -z "$CKPT" ]]; then
    echo "Usage: $0 <ckpt> [data_config] [demographics_csv]" >&2
    exit 1
fi
if [[ ! -f "$CKPT" ]]; then
    echo "ckpt not found: $CKPT" >&2
    exit 1
fi

# resolve python (mirror of other batch scripts)
PY=""
if command -v python3 >/dev/null 2>&1 && python3 -c 'import hydra,cv2' >/dev/null 2>&1; then
    PY="$(command -v python3)"
elif [[ -x /opt/conda/envs/pytorch/bin/python3 ]] && \
     /opt/conda/envs/pytorch/bin/python3 -c 'import hydra,cv2' >/dev/null 2>&1; then
    PY="/opt/conda/envs/pytorch/bin/python3"
fi
if [[ -z "$PY" ]]; then
    echo "FATAL: cannot find python with hydra+opencv installed" >&2
    exit 1
fi
echo "[robustness] python: $PY"

TS="$(date +%Y%m%d_%H%M%S)"
OUT_JSON="outputs/analysis/robustness/cta_runs_${TS}.json"
mkdir -p "$(dirname "$OUT_JSON")"

PERTURBATIONS=(color_saturation color_contrast block_wise gaussian_noise gaussian_blur pixelate jpeg_quality)

DEMO_FLAG=()
if [[ -n "$DEMO" ]]; then
    DEMO_FLAG=(--demographics_csv "$DEMO")
fi

echo "============================================================"
echo "[robustness sweep] ckpt:           $CKPT"
echo "[robustness sweep] data:           $DATA"
echo "[robustness sweep] demographics:   ${DEMO:-<none, fairness skipped>}"
echo "[robustness sweep] output JSON:    $OUT_JSON"
echo "[robustness sweep] 6 x 5 = 30 runs"
echo "============================================================"

for p in "${PERTURBATIONS[@]}"; do
    for L in 1 2 3 4 5; do
        echo ""
        echo ">>> [robustness] $p / level=$L  ($(date '+%H:%M:%S'))"
        "$PY" scripts/analysis/evaluate_robustness.py \
            --ckpt "$CKPT" \
            --data "$DATA" \
            --perturbation "$p" \
            --level "$L" \
            --save_json "$OUT_JSON" \
            "${DEMO_FLAG[@]}" \
            || { echo "[robustness] FAILED on $p/L$L (skipping)"; continue; }
    done
done

echo ""
echo "============================================================"
echo "[robustness sweep] DONE"
echo "[robustness sweep] runs:  $(grep -c '"perturbation":' "$OUT_JSON" 2>/dev/null || echo "?") / 30"
echo "[robustness sweep] JSON:  $OUT_JSON"
echo "============================================================"