defmodule <%= app_module %>.Mixfile do
  use Mix.Project

  @target System.get_env("MIX_TARGET") || "host"

  Mix.shell.info([:green, """
  Mix environment
    MIX_TARGET:   #{@target}
    MIX_ENV:      #{Mix.env}
  """, :reset])

  def project do
    [app: :<%= app_name %>,
     version: "0.1.0",
     elixir: "<%= elixir_req %>",
     target: @target,
     archives: [nerves_bootstrap: "~> <%= bootstrap_vsn %>"],<%= if in_umbrella do %>
     deps_path: "../../deps/#{@target}",
     build_path: "../../_build/#{@target}",
     config_path: "../../config/config.exs",
     lockfile: "../../mix.lock.#{@target}",<% else %>
     deps_path: "deps/#{@target}",
     build_path: "_build/#{@target}",
     lockfile: "mix.lock.#{@target}",<% end %>
     build_embedded: Mix.env == :prod,
     start_permanent: Mix.env == :prod,
     aliases: aliases(@target),
     deps: deps()]
  end

  # Configuration for the OTP application.
  #
  # Type `mix help compile.app` for more information.
  def application, do: application(@target)

  # Specify target specific application configurations
  # It is common that the application start function will start and supervise
  # applications which could cause the host to fail. Because of this, we only
  # invoke <%= app_module %>.start/2 when running on a target.
  def application("host") do
    [extra_applications: [:logger]]
  end
  def application(_target) do
    [mod: {<%= app_module %>.Application, []},
     extra_applications: [:logger]]
  end

  # Dependencies can be Hex packages:
  #
  #   {:my_dep, "~> 0.3.0"}
  #
  # Or git/path repositories:
  #
  #   {:my_dep, git: "https://github.com/elixir-lang/my_dep.git", tag: "0.1.0"}
  #
  # Type "mix help deps" for more examples and options
  def deps do
    [<%= nerves_dep %>] ++
    deps(@target)
  end

  # Specify target specific dependencies
  def deps("host"), do: []
  def deps(target) do
    [
      {:bootloader, "~> <%= bootloader_vsn %>"},
      {:nerves_runtime, "~> <%= runtime_vsn %>"}
    ] ++ system(target)
  end

<%= for target <- targets do %>
  def system("<%= target %>"), do: [{:<%= "nerves_system_#{target}" %>, ">= 0.0.0", runtime: false}]
<% end %>
  def system(target), do: Mix.raise "Unknown MIX_TARGET: #{target}"

  # We do not invoke the Nerves Env when running on the Host
  def aliases("host"), do: []
  def aliases(_target) do
    ["deps.precompile": ["nerves.precompile", "deps.precompile"],
     "deps.loadpaths":  ["deps.loadpaths", "nerves.loadpaths"]]
  end

end