direnvrc

use_poetry() {
  if [[ ! -f pyproject.toml ]]; then
    log_error 'No pyproject.toml found.  Use `poetry new` or `poetry init` to create one first.'
    exit 2
  fi

  if [[ -d venv ]]; then
    VENV=$(realpath venv/bin)
  elif [[ -d .venv ]]; then
    VENV=$(realpath .venv/bin)
  else
    local VENV=$(dirname $(poetry run which python))
  fi

  export VIRTUAL_ENV=$(echo "$VENV" | rev | cut -d'/' -f2- | rev)
  export POETRY_ACTIVE=1
  PATH_add "$VENV"
}

use_uv() {
    if [[ -d ".venv" ]]; then
        VIRTUAL_ENV="$(pwd)/.venv"
    fi

    if [[ -z $VIRTUAL_ENV || ! -d $VIRTUAL_ENV ]]; then
        log_status "No virtual environment exists. Executing \`uv venv\` to create one."
        uv venv
        VIRTUAL_ENV="$(pwd)/.venv"
    fi

    PATH_add "$VIRTUAL_ENV/bin"
    export UV_ACTIVE=1  # or VENV_ACTIVE=1
    export VIRTUAL_ENV
}

use_nvm() {
  local version=${1:-}
  if [[ -z "$version" ]] && [[ -f .nvmrc ]]; then
    version=$(cat .nvmrc | tr -d '[:space:]')
  fi

  if [[ -z "$version" ]]; then
    log_error "No version specified and no .nvmrc found"
    return 1
  fi

  local NVM_DIR=${NVM_DIR:-$HOME/.nvm}
  if ! [[ -d "$NVM_DIR" ]]; then
    log_error "NVM_DIR not found: $NVM_DIR"
    return 1
  fi

  local node_version_prefix
  node_version_prefix=$(
    source "$NVM_DIR/nvm.sh" --no-use
    nvm_version_path "$(nvm_version "$version")"
  )

  if [[ -d "$node_version_prefix" ]]; then
    PATH_add "$node_version_prefix/bin"
    export NVM_BIN="$node_version_prefix/bin"
    log_status "Using Node $(node --version) (via nvm)"
  else
    log_error "Node version $version not installed. Run: nvm install $version"
    return 1
  fi
}