#!/usr/bin/env bash
# 启动 3D 服务端（自动选用当前 conda/venv 环境的解释器，避免 PATH 缓存到系统 python）。
#
# 用法：
#   bash viewer/backend/run.sh                 # 默认 127.0.0.1:5182
#   bash viewer/backend/run.sh --reload
#   bash viewer/backend/run.sh --port 5182
set -e

DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
ROOT="$(cd "$DIR/../.." && pwd)"

pick_python() {
  if [ -n "${CONDA_PREFIX:-}" ] && [ -x "$CONDA_PREFIX/bin/python" ]; then
    echo "$CONDA_PREFIX/bin/python"
    return
  fi
  if [ -x "$ROOT/.venv/bin/python" ]; then
    echo "$ROOT/.venv/bin/python"
    return
  fi
  command -v python || command -v python3
}

PY="$(pick_python)"

if ! "$PY" -c "import fastapi, uvicorn" >/dev/null 2>&1; then
  echo "[run.sh] 解释器 $PY 缺少依赖，正在安装 requirements.txt ..." >&2
  "$PY" -m pip install -r "$DIR/requirements.txt"
fi

exec "$PY" "$DIR/run.py" "$@"