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

ENV_NAME=${1:-sgl-new}
PYTHON_VERSION=${PYTHON_VERSION:-3.10}

echo "Creating conda environment: ${ENV_NAME}"
conda create -y -n "${ENV_NAME}" python="${PYTHON_VERSION}"
eval "$(conda shell.bash hook)"
conda activate "${ENV_NAME}"

python -m pip install --upgrade pip
python -m pip install -r requirements.txt

echo
echo "Environment ${ENV_NAME} created."
echo "Install torch and torchvision separately to match your CUDA version."
echo "Example:"
echo "  pip install torch torchvision --index-url https://download.pytorch.org/whl/cu121"