#!/usr/bin/env bash
# Project-local cache and temporary-directory policy.
# Usage: source /data/myx/RL_post_train/scripts/project_env.sh
#
# This file intentionally does not set HOME or CUDA_VISIBLE_DEVICES. GPU
# selection must be decided after a fresh nvidia-smi check for each workload.

PROJECT_ROOT="${PROJECT_ROOT:-/data/myx/RL_post_train}"

case "${PROJECT_ROOT}" in
  /data/myx/*) ;;
  *)
    echo "PROJECT_ROOT must remain under /data/myx/: ${PROJECT_ROOT}" >&2
    if [[ "${BASH_SOURCE[0]}" != "${0}" ]]; then
      return 1
    fi
    exit 1
    ;;
esac

export PROJECT_ROOT

# Hugging Face / Transformers / datasets
export HF_HOME="${PROJECT_ROOT}/cache/huggingface"
if [[ -r "${PROJECT_ROOT}/.secrets/hf_token" ]]; then
  export HF_TOKEN_PATH="${PROJECT_ROOT}/.secrets/hf_token"
fi
export HF_HUB_CACHE="${HF_HOME}/hub"
export HF_DATASETS_CACHE="${HF_HOME}/datasets"
export HF_XET_CACHE="${HF_HOME}/xet"
export TRANSFORMERS_CACHE="${HF_HOME}/transformers"
export HF_LEROBOT_HOME="${HF_HOME}/lerobot"
export OPENPI_DATA_HOME="${PROJECT_ROOT}/cache/openpi"
export LIBERO_CONFIG_PATH="${PROJECT_ROOT}/cache/libero"

# General Python, compiler and experiment caches
export TORCH_HOME="${PROJECT_ROOT}/cache/torch"
export XDG_CACHE_HOME="${PROJECT_ROOT}/cache/xdg"
export XDG_CONFIG_HOME="${PROJECT_ROOT}/cache/xdg_config"
export XDG_DATA_HOME="${PROJECT_ROOT}/cache/xdg_data"
export UV_CACHE_DIR="${PROJECT_ROOT}/cache/uv"
export PIP_CACHE_DIR="${PROJECT_ROOT}/cache/pip"
export TRITON_CACHE_DIR="${PROJECT_ROOT}/cache/triton"
export CUDA_CACHE_PATH="${PROJECT_ROOT}/cache/cuda"
export MPLCONFIGDIR="${PROJECT_ROOT}/cache/matplotlib"

# W&B, Ray and Jupyter must not fall back to /home or the system temporary dir.
export WANDB_DIR="${PROJECT_ROOT}/wandb"
export WANDB_MODE="${WANDB_MODE:-offline}"
export RAY_TMPDIR="${PROJECT_ROOT}/tmp/ray"
export JUPYTER_CONFIG_DIR="${PROJECT_ROOT}/cache/jupyter"
export JUPYTER_DATA_DIR="${PROJECT_ROOT}/cache/jupyter/data"
export TMPDIR="${PROJECT_ROOT}/tmp"

mkdir -p \
  "${HF_HUB_CACHE}" \
  "${HF_DATASETS_CACHE}" \
  "${HF_XET_CACHE}" \
  "${TRANSFORMERS_CACHE}" \
  "${HF_LEROBOT_HOME}" \
  "${OPENPI_DATA_HOME}" \
  "${LIBERO_CONFIG_PATH}" \
  "${TORCH_HOME}" \
  "${XDG_CACHE_HOME}" \
  "${XDG_CONFIG_HOME}" \
  "${XDG_DATA_HOME}" \
  "${UV_CACHE_DIR}" \
  "${PIP_CACHE_DIR}" \
  "${TRITON_CACHE_DIR}" \
  "${CUDA_CACHE_PATH}" \
  "${MPLCONFIGDIR}" \
  "${WANDB_DIR}" \
  "${RAY_TMPDIR}" \
  "${JUPYTER_CONFIG_DIR}" \
  "${JUPYTER_DATA_DIR}" \
  "${TMPDIR}"

echo "Project environment configured: ${PROJECT_ROOT}"