defmodule ElixirMpesa.MixProject do
  use Mix.Project

  @version "0.2.0"
  @source_url "https://github.com/jamesnjovu/elixir_mpesa"
  @description "Vodacom M-Pesa OpenAPI client for Elixir — C2B, B2C, B2B, reversals, direct " <>
                 "debit and transaction queries across Tanzania, Lesotho, Ghana and the DRC."

  def project do
    [
      app: :elixir_mpesa,
      version: @version,
      elixir: "~> 1.15",
      elixirc_paths: elixirc_paths(Mix.env()),
      start_permanent: Mix.env() == :prod,
      description: @description,
      package: package(),
      deps: deps(),
      docs: docs(),
      aliases: aliases(),
      name: "ElixirMpesa",
      source_url: @source_url,
      homepage_url: "https://hexdocs.pm/elixir_mpesa",
      test_coverage: [summary: [threshold: 0]],
      dialyzer: [
        plt_local_path: "priv/plts",
        plt_core_path: "priv/plts",
        flags: [:error_handling, :extra_return, :missing_return, :underspecs]
      ]
    ]
  end

  def application do
    [
      extra_applications: [:logger, :public_key],
      mod: {ElixirMpesa.Application, []}
    ]
  end

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

  defp deps do
    [
      {:req, "~> 0.5"},
      {:jason, "~> 1.2"},
      {:plug, "~> 1.15", only: :test},
      {:ex_doc, "~> 0.34", only: :dev, runtime: false},
      {:credo, "~> 1.7", only: [:dev, :test], runtime: false},
      {:dialyxir, "~> 1.4", only: [:dev, :test], runtime: false}
    ]
  end

  defp package do
    [
      name: "elixir_mpesa",
      maintainers: ["James Njovu"],
      files: ~w(lib guides .formatter.exs mix.exs README.md CHANGELOG.md LICENSE),
      licenses: ["MIT"],
      links: %{
        "GitHub" => @source_url,
        "Changelog" => "#{@source_url}/blob/main/CHANGELOG.md",
        "Docs" => "https://hexdocs.pm/elixir_mpesa",
        "M-Pesa OpenAPI Portal" => "https://openapiportal.m-pesa.com"
      }
    ]
  end

  defp docs do
    [
      main: "readme",
      source_url: @source_url,
      source_ref: "v#{@version}",
      formatters: ["html"],
      extras: [
        "README.md",
        "guides/getting-started.md",
        "guides/markets.md",
        "guides/authentication.md",
        "guides/payments.md",
        "guides/direct-debit.md",
        "guides/error-codes.md",
        "guides/testing.md",
        "guides/upgrading.md",
        "CHANGELOG.md",
        "LICENSE"
      ],
      groups_for_extras: [
        Guides: ~r/guides\/(getting-started|markets|authentication)/,
        Operations: ~r/guides\/(payments|direct-debit)/,
        Reference: ~r/guides\/(error-codes|testing|upgrading)/
      ],
      groups_for_modules: [
        Core: [ElixirMpesa, ElixirMpesa.Transactions],
        Configuration: [ElixirMpesa.Config],
        Results: [ElixirMpesa.Response, ElixirMpesa.Error],
        Internals: [ElixirMpesa.Client, ElixirMpesa.Crypto, ElixirMpesa.Session],
        Deprecated: [ElixirMpesa.GenerateSessionKey]
      ],
      groups_for_docs: [
        Payments: &(&1[:group] == :payments),
        Queries: &(&1[:group] == :queries),
        "Direct debit": &(&1[:group] == :direct_debit),
        Session: &(&1[:group] == :session)
      ]
    ]
  end

  defp aliases do
    [
      docs: ["docs", &llms_txt/1],
      lint: ["format --check-formatted", "credo --strict", "dialyzer"],
      ci: ["lint", "test"]
    ]
  end

  # Writes doc/llms.txt so hexdocs.pm/elixir_mpesa/llms.txt serves a condensed,
  # machine-readable summary for coding assistants. Kept out of lib/ so it never
  # ships in the Hex package.
  defp llms_txt(_args) do
    source = "llms.txt"

    if File.exists?(source) do
      File.mkdir_p!("doc")
      File.cp!(source, "doc/llms.txt")
      Mix.shell().info([:green, "* copied ", :reset, "doc/llms.txt"])
    end
  end
end