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#!/usr/bin/env bash
# Launch RefDiffNet demo (lightweight: skip reinstall if deps OK)
set -euo pipefail
cd "$(dirname "$0")"

if [[ -f "${HOME}/anaconda3/etc/profile.d/conda.sh" ]]; then
  # shellcheck source=/dev/null
  source "${HOME}/anaconda3/etc/profile.d/conda.sh"
  conda activate pcb
fi

PY="${CONDA_PREFIX:-}/bin/python"
PIP="${CONDA_PREFIX:-}/bin/pip"
SITE="${CONDA_PREFIX:-}/lib/python3.10/site-packages"

echo "==> Python: $(which python)"

need_numpy_fix() {
  ! "${PY}" -c "import numpy; assert numpy.__version__.startswith('1.')" 2>/dev/null
}

fix_numpy() {
  echo "==> numpy 1.x (torch 2.2)"
  if ! "${PIP}" install --no-cache-dir --ignore-installed "numpy>=1.23.0,<2" 2>/dev/null; then
    rm -rf "${SITE}"/numpy "${SITE}"/numpy-*.dist-info 2>/dev/null || true
    "${PIP}" install --no-cache-dir "numpy>=1.23.0,<2"
  fi
}

need_gradio_fix() {
  ! "${PY}" -c "import gradio_patch; gradio_patch.apply(); import gradio" 2>/dev/null
}

fix_gradio() {
  echo "==> gradio 5.23.0 (match HF sdk_version)"
  "${PIP}" install --no-cache-dir "gradio==5.23.0"
}

free_port() {
  local p="$1"
  if lsof -i:"${p}" -sTCP:LISTEN -t >/dev/null 2>&1; then
    echo "    Stopping process on port ${p}..."
    kill "$(lsof -t -i:"${p}" -sTCP:LISTEN 2>/dev/null)" 2>/dev/null || true
    sleep 1
  fi
}

need_numpy_fix && fix_numpy
need_gradio_fix && fix_gradio
free_port 7860

export PYTHONNOUSERSITE=1
export PREBACKBONE_ONLY_WEIGHTS="${PREBACKBONE_ONLY_WEIGHTS:-weights/prebackbone_a11_ca.pt}"
export PRELOAD_MODEL="${PRELOAD_MODEL:-0}"
export GRADIO_SHARE="${GRADIO_SHARE:-0}"
# Low RAM: PREBACKBONE_DEVICE=cpu bash run.sh

echo "==> Starting app (PRELOAD_MODEL=${PRELOAD_MODEL} GRADIO_SHARE=${GRADIO_SHARE})"
exec "${PY}" app.py