defmodule Filo.MixProject do
  use Mix.Project

  @version "0.2.0"
  @source_url "https://github.com/cwisecarver/filo"

  def project do
    [
      app: :filo,
      version: @version,
      elixir: "~> 1.20",
      elixirc_paths: elixirc_paths(Mix.env()),
      start_permanent: Mix.env() == :prod,
      deps: deps(),
      aliases: aliases(),
      description: description(),
      package: package(),
      source_url: @source_url,
      name: "Filo",
      docs: docs()
    ]
  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
    [
      {:plug, "~> 1.16"},
      {:jason, "~> 1.4"},
      # The WebSock behaviour for the Hrana-over-WebSocket handler. Behaviour
      # only (like Plug) — the host brings the actual server (Bandit/Cowboy).
      {:websock, "~> 0.5"},
      # Optional: the transport behind the default `Filo.Client.Transport.Mint`.
      # Only needed by hosts that use the Hrana *client*; server-only hosts, and
      # clients that bring their own `:transport`, never pull it in.
      {:mint, "~> 1.6", optional: true},
      # Test-only: a real HTTP/WebSocket server, plus a real SQLite engine for
      # the end-to-end executor, to run libsql clients against Filo. The library
      # itself ships a Plug and a WebSock handler and never depends on either.
      {:bandit, "~> 1.0", only: :test},
      {:exqlite, "~> 0.27", only: :test},
      {:ex_doc, "~> 0.34", only: :dev, runtime: false}
    ]
  end

  defp aliases do
    [
      precommit: [
        "compile --warning-as-errors",
        "deps.unlock --unused",
        "format --check-formatted",
        "test"
      ]
    ]
  end

  defp description do
    # This is the one line people read in Hex search results, so it says what Filo IS
    # (both halves) rather than how it is built.
    "A Hrana (libSQL) protocol server and client for Elixir — speak libSQL's wire " <>
      "protocol from any Plug app, backed by the SQLite engine of your choice."
  end

  defp package do
    [
      licenses: ["MIT"],
      maintainers: ["Chris Wisecarver"],
      # Explicit, because Hex's default list silently omitted CONTRIBUTING.md while
      # including README/LICENSE/CHANGELOG — and docs/ lists it as an ex_doc extra, so
      # a missing file would have broken the published docs build.
      # Deliberately NOT shipped: AGENTS.md / CLAUDE.md (agent instructions, not user
      # docs) and test/ (needs bandit + exqlite, which are test-only deps).
      files: ~w(lib .formatter.exs mix.exs README.md LICENSE CHANGELOG.md CONTRIBUTING.md),
      links: %{
        "GitHub" => @source_url,
        "Changelog" => "#{@source_url}/blob/main/CHANGELOG.md"
      }
    ]
  end

  defp docs do
    [
      main: "Filo",
      # Must match a tag that actually exists at the documented code. v0.1.0 was
      # tagged at the initial commit, so before v0.2.0 every source link for
      # Filo.Client (added after that tag) pointed into a tree without it.
      source_ref: "v#{@version}",
      extras: ["README.md", "CHANGELOG.md", "CONTRIBUTING.md"],
      groups_for_modules: [
        Server: [Filo.Plug, Filo.Socket, Filo.Streams, Filo.Stream, Filo.Executor],
        Client: [Filo.Client, Filo.Client.Transport, Filo.Client.Transport.Mint],
        Protocol: [Filo.Value, Filo.Stmt, Filo.StmtResult, Filo.Error, Filo.Baton]
      ]
    ]
  end
end