defmodule Mandrag do
  def message(text), do: if output_level > 0, do: IO.puts(text)
  def run_command(command), do: ssh("#{name}/run/bin/#{name} #{command}")

  # SSH helpers
  def ssh_options, do: "-i#{key} -oStrictHostKeyChecking=no"
  def ssh(command), do: Mix.Shell.IO.cmd "ssh #{user}@#{host} #{ssh_options} '#{command}'"
  def scp(source, destination), do: Mix.Shell.IO.cmd "scp #{ssh_options} #{source} #{user}@#{host}:#{destination}"

  # config helpers
  def user, do: Application.get_env(:mandrag, :user)
  def host, do: Application.get_env(:mandrag, :host)
  def key, do: Application.get_env(:mandrag, :key)
  def name, do: Application.get_env(:mandrag, :name)
  def version, do: Application.get_env(:mandrag, :version)
  def repo, do: Application.get_env(:mandrag, :repo)
  def location, do: Application.get_env(:mandrag, :build_location) || :local
  def output, do: Application.get_env(:mandrag, :output) || :info
  def output_level, do: %{error: 0, info: 1, debug: 2} |> Map.get(output)
end