configure

#!/bin/bash

readonly NODE_VERSION='8.9.4'
readonly JAKE_VERSION='8.0.18'

function _has_nvm() {
  which nvm || ls ~/.nvm > /dev/null 2>&1
}

function _check_nvm() {
  printf "checking for nvm ... "
  if _has_nvm; then
    echo "yes"
    return 0
  else
    echo "no"
    return 1
  fi
}

function _check_node() {
  printf "checking for node ... "
  local version=`node -v 2>/dev/null`
  if [ "$version" = "v$NODE_VERSION" ]; then
    echo "node@$version"
    return 0
  else
    echo "no"
    return 1
  fi
}

function _check_jake() {
  printf "checking for jake ... "
  local version=`jake -v 2>/dev/null`
  if [ "$version" = "$JAKE_VERSION" ]; then
    echo "jake@$version"
    return 0
  else
    echo "no"
    return 1
  fi
}

function _install_nvm() {
  echo "installing nvm ..."
  curl -o- https://raw.githubusercontent.com/creationix/nvm/v0.33.11/install.sh | bash
}

function _install_node() {
  echo "installing node ..."
  source ~/.nvm/nvm.sh
  local cmd="nvm install v$NODE_VERSION"
  echo $cmd
  $cmd
}

function _npm_install() {
  local cmd="npm install -g $1"
  echo $cmd
  $cmd
}

function _install_jake() {
  echo "installing jake ..."
  _npm_install "jake@$JAKE_VERSION"
}

function main() {
  if _check_jake; then
    printf ""
  elif _check_node; then
    _install_jake
  elif _check_nvm; then
    _install_node && _install_jake
  else
    _install_nvm && _install_node && _install_jake
  fi
}

main $@ && echo "ok"