activate

# only run if bash or zsh
[ -n "${BASH_VERSION:-}" ] || return 0

export UENV_CMD='env -u PYTHONPATH -u VIRTUAL_ENV @@impl@@'
export UENV_IMG_CMD='env -u PYTHONPATH -u VIRTUAL_ENV @@image_impl@@'
export UENV_VERSION=@@version@@
export UENV_PREFIX=@@prefix@@
export UENV_WRAPPER_CMD=@@wrapper@@

function uenv {
    local _last_exitcode=$?

    function uenv_usage {
        echo "uenv - for using user environments [version @@version@@]"
        echo ""
        echo "Usage:   uenv [--version] [--help] [--no-color] [--verbose] <command> [<args>]"
        echo ""
        echo "The following commands are available:"
        echo "  image           query and pull uenv images"
        echo "  repo            query and interact with repositories"
        echo "  run             run a command in an environment"
        echo "  start           start a new shell with an environment loaded"
        echo "  status          print information about each running environment"
        echo "  stop            stop a shell with an environment loaded"
        echo "  view            activate a view"
        echo ""
        echo "Type 'uenv command --help' for more information and examples for a specific command, e.g."
        echo "  uenv start --help"
        echo "  uenv image find --help"
    }

    if [ "$1" = "--version" ]; then
        echo "@@version@@";
    else
        flags=""
        while [[ $# -gt 0 ]]; do
            case $1 in
                -?*|--*)
                    flags="$flags $1"
                    shift
                    ;;
                *)
                    break
                    ;;
            esac
        done

        if [[ $# -eq 0 ]]; then
            uenv_usage;
        elif [ "$1" = "image" ]; then
            shift;
            $UENV_IMG_CMD $flags "$@"
        elif [[ " $* " =~ [[:space:]](-h|--help)[[:space:]] ]]; then
            echo "$($UENV_CMD $flags "$@")"
        else
            eval "$($UENV_CMD $flags "$@")"
        fi
    fi

    unset -f uenv_usage
    return $_exitcode
}

export -f uenv