defmodule Vttyl.MixProject do
  use Mix.Project

  @version "0.1.0"
  @repo_url "https://github.com/cadebward/vtt"

  def project do
    [
      app: :vtt,
      version: @version,
      elixir: "~> 1.8",
      package: package(),
      source_url: @repo_url,
      homepage_url: @repo_url,
      name: "Vtt",
      description: "A dead simple vtt parser.",
      aliases: [docs: &build_docs/1],
      docs: [
        main: "readme",
        source_ref: "v#{@version}",
        source_url: @repo_url,
        extras: ["README.md"]
      ]
    ]
  end

  def application do
    [
      extra_applications: [:logger]
    ]
  end

  defp package do
    [
      maintainers: ["Cade Ward"],
      licenses: ["MIT"],
      links: %{
        "GitHub" => @repo_url
      }
    ]
  end

  defp build_docs(_) do
    Mix.Task.run("compile")
    ex_doc = Path.join(Mix.path_for(:escripts), "ex_doc")

    unless File.exists?(ex_doc) do
      raise "cannot build docs because escript for ex_doc is not installed"
    end

    args = ["HLS", @version, Mix.Project.compile_path()]
    opts = ~w[--main HLS --source-ref v#{@version} --source-url #{@repo_url}]
    System.cmd(ex_doc, args ++ opts)
    Mix.shell().info("Docs built successfully")
  end
end