defmodule NervesSystemVim3.MixProject do
  use Mix.Project

  @github_organization "your-username"
  @app :nerves_system_vim3
  @version "0.1.0"

  def project do
    [
      app: @app,
      version: @version,
      elixir: "~> 1.11",
      compilers: Mix.compilers() ++ [:nerves_package],
      nerves_package: nerves_package(),
      description: description(),
      package: package(),
      deps: deps(),
      aliases: [loadconfig: [&bootstrap/1]],
      docs: [extras: ["README.md"], main: "readme"],
      preferred_cli_env: %{
        docs: :docs,
        "hex.build": :docs,
        "hex.publish": :docs
      },
      nerves_runtime: [
        config: [
          kv_backend: {Nerves.Runtime.KVBackend.UBootEnv, []}
        ]
      ]
    ]
  end

  def application do
    []
  end

  defp bootstrap(args) do
    set_target()
    Application.start(:nerves_bootstrap)
    Mix.Task.run("loadconfig", args)
  end

  defp nerves_package do
    [
      type: :system,
      artifact_sites: [
        {:github_releases, "#{@github_organization}/#{@app}"}
      ],
      platform: Nerves.System.BR,
      platform_config: [
        defconfig: "nerves_defconfig"
      ],
      checksum: package_files()
    ]
  end

  defp deps do
    [
      {:nerves, "~> 1.11", runtime: false},
      {:nerves_system_br, "1.33.0", runtime: false},
      {:nerves_toolchain_aarch64_nerves_linux_gnu, "~> 14.2.0", runtime: false},
      {:nerves_system_linter, "~> 0.4", only: [:dev, :test], runtime: false},
      {:ex_doc, "~> 0.22", only: [:dev, :docs], runtime: false}
    ]
  end

  defp description do
    """
    Nerves System - Khadas VIM3 (Amlogic A311D)
    """
  end

  defp package do
    [
      files: package_files(),
      licenses: ["Apache-2.0"],
      links: %{"GitLab" => "https://gitlab.com/st8vrt/nerves_system_vim3"}
    ]
  end

  defp package_files do
    [
      "config",
      "fwup.conf",
      "fwup-revert.conf",
      "LICENSE",
      "mix.exs",
      "nerves_defconfig",
      "post-build.sh",
      "post-createfs.sh",
      "README.md",
      "rootfs_overlay",
      "scripts",
      "uboot",
      "linux",
      "VERSION"
    ]
  end

  defp build_runner_opts() do
    # Download source files first to get download errors right away.
    [make_args: primary_site() ++ ["source", "all", "legal-info"]]
  end

  defp primary_site() do
    case System.get_env("BR2_PRIMARY_SITE") do
      nil -> []
      primary_site -> ["BR2_PRIMARY_SITE=#{primary_site}"]
    end
  end

  defp set_target() do
    if function_exported?(Mix, :target, 1) do
      apply(Mix, :target, [:vim3])
    else
      System.put_env("MIX_TARGET", "vim3")
    end
  end
end