defmodule Harper.MixProject do
  use Mix.Project

  @version "0.1.1"
  @source_url "https://git.sr.ht/~sbr/harper"

  def project do
    [
      app: :harper,
      version: @version,
      elixir: "~> 1.15",
      elixirc_paths: elixirc_paths(Mix.env()),
      start_permanent: Mix.env() == :prod,
      deps: deps(),
      aliases: aliases(),
      description: description(),
      package: package(),
      docs: docs(),
      dialyzer: dialyzer(),
      source_url: @source_url,
      homepage_url: @source_url
    ]
    |> Keyword.merge(umbrella_paths())
  end

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

  def cli do
    [preferred_envs: [precommit: :test]]
  end

  defp elixirc_paths(:test), do: ["lib", "test/support"]
  defp elixirc_paths(_), do: ["lib"]

  defp deps do
    [
      {:rustler_precompiled, "~> 0.8"},
      # 0.1.0 ships source-only until the precompiled tarballs are uploaded and
      # the checksum file committed. `force_build` in Harper.Native (via the
      # RUSTLER_PRECOMPILATION_FORCE_BUILD env var) hands compilation to rustler,
      # so rustler must actually be present — hence not `optional: true` yet.
      {:rustler, "~> 0.38"},
      {:ex_doc, "~> 0.34", only: :dev, runtime: false},
      {:credo, "~> 1.7", only: [:dev, :test], runtime: false},
      {:mix_audit, "~> 2.1", only: [:dev, :test], runtime: false},
      {:dialyxir, "~> 1.4", only: [:dev, :test], runtime: false}
    ]
  end

  defp aliases do
    [
      precommit: [
        "format --check-formatted",
        "credo",
        "deps.audit",
        "dialyzer",
        "test"
      ]
    ]
  end

  defp dialyzer do
    [
      plt_add_apps: [:ex_unit, :mix],
      flags: [:error_handling, :unknown, :underspecs],
      ignore_warnings: ".dialyzer_ignore.exs"
    ]
  end

  defp description do
    "Elixir bindings to Harper — a fast, offline, privacy-first English " <>
      "grammar and spell checker (Automattic's Harper, in Rust). Spelling, " <>
      "grammar and style lints with suggestions, dialects and a custom dictionary."
  end

  defp package do
    [
      maintainers: ["sbr"],
      licenses: ["Apache-2.0"],
      links: %{
        "Source" => @source_url,
        "Changelog" => @source_url <> "/tree/main/item/CHANGELOG.md",
        "Harper (upstream Rust)" => "https://github.com/Automattic/harper"
      },
      # checksum-Elixir.Harper.Native.exs is (re)generated by scripts/deploy.sh
      # after each release's artifacts are uploaded to the sr.ht release ref.
      files: ~w(
        lib
        native/harper_nif/Cargo.toml
        native/harper_nif/Cargo.lock
        native/harper_nif/src
        checksum-Elixir.Harper.Native.exs
        mix.exs
        README.md
        CHANGELOG.md
        LICENSE
        LICENSE-APACHE
      )
    ]
  end

  defp docs do
    [
      main: "readme",
      extras: ["README.md", "CHANGELOG.md", "LICENSE"],
      source_ref: "v#{@version}"
    ]
  end

  # When this lib lives inside the 8by3 umbrella (path dep during dev), share
  # the parent build/deps dirs. After extraction into its own repo the parent
  # dirs don't exist and it builds standalone. Same mix.exs works in both.
  defp umbrella_paths do
    if File.exists?(Path.expand("../../mix.exs", __DIR__)) do
      [
        build_path: "../../_build",
        config_path: "../../config/config.exs",
        deps_path: "../../deps",
        lockfile: "../../mix.lock"
      ]
    else
      []
    end
  end
end