defmodule Membrane.RTC.Engine.Endpoint.ExWebRTC.MixProject do
  use Mix.Project

  @version "0.1.0"
  @engine_github_url "https://github.com/fishjam-cloud/membrane_rtc_engine"
  @github_url "#{@engine_github_url}/tree/master/ex_webrtc"
  @source_ref "exwebrtc-v#{@version}"

  def project do
    [
      app: :membrane_rtc_engine_ex_webrtc,
      version: @version,
      elixir: "~> 1.18",
      elixirc_paths: elixirc_paths(Mix.env()),
      start_permanent: Mix.env() == :prod,
      deps: deps(),

      # hex
      description: "ExWebRTC Endpoint for Membrane RTC Engine",
      package: package(),

      # docs
      name: "Membrane RTC Engine ExWebRTC Endpoint",
      source_url: @github_url,
      homepage_url: "https://membrane.stream",
      docs: docs(),

      # test coverage
      test_coverage: [tool: ExCoveralls],
      preferred_cli_env: [
        coveralls: :test,
        "coveralls.detail": :test,
        "coveralls.post": :test,
        "coveralls.html": :test,
        "coveralls.json": :test
      ]
    ]
  end

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

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

  defp deps do
    [
      {:membrane_rtc_engine, "~> 0.24.0"},
      {:membrane_core, "~> 1.2"},
      {:ex_webrtc, "~> 0.8.1"},
      {:ex_ice, "~> 0.9.4"},
      {:membrane_rtp_plugin, "~> 0.30.0"},
      {:membrane_rtp_format, "~> 0.10.0"},
      {:membrane_rtp_vp8_plugin, "~> 0.9.0"},
      {:membrane_rtp_h264_plugin, "~> 0.20.0"},
      {:ex_sdp, "~> 1.0"},
      {:jason, "~> 1.2"},
      {:elixir_uuid, "~> 1.2"},
      {:fishjam_protos, "~> 0.1.0"},

      # Dev and test
      {:credo, "~> 1.6", only: :dev, runtime: false},
      {:ex_doc, "~> 0.34", only: :dev, runtime: false},
      {:dialyxir, "~> 1.4", only: :dev, runtime: false},
      {:excoveralls, "~> 0.16.0", only: :test, runtime: false}
    ]
  end

  defp package do
    [
      maintainers: ["Membrane Team"],
      licenses: ["Apache-2.0"],
      links: %{
        "GitHub" => @github_url,
        "Membrane Framework Homepage" => "https://membrane.stream"
      }
    ]
  end

  defp docs do
    [
      main: "readme",
      extras: extras(),
      formatters: ["html"],
      groups_for_extras: groups_for_extras(),
      groups_for_modules: groups_for_modules(),
      assets: %{"internal_docs/assets" => "assets"},
      source_ref: @source_ref,
      source_url_pattern: "#{@engine_github_url}/blob/#{@source_ref}/ex_webrtc/%{path}#L%{line}",
      nest_modules_by_prefix: [Membrane.WebRTC, Membrane.RTC.Engine.Endpoint],
      before_closing_body_tag: &before_closing_body_tag/1
    ]
  end

  defp extras() do
    [
      "README.md",
      "CHANGELOG.md",
      "LICENSE",

      # internal docs
      "internal_docs/protocol.md",
      "internal_docs/ex_webrtc_endpoint.md"
    ]
  end

  defp groups_for_extras() do
    [
      {"Developer docs", ~r/internal_docs\//}
    ]
  end

  defp groups_for_modules() do
    [
      {"ExWebRTC Endpoint",
       [
         ~r/^Membrane\.RTC\.Engine\.Endpoint\.ExWebRTC($|\.)/
       ]}
    ]
  end

  defp before_closing_body_tag(:html) do
    """
    <script src="https://cdn.jsdelivr.net/npm/mermaid@9.1.1/dist/mermaid.min.js"></script>
    <style>
      .diagramWrapper svg {
        background-color: white;
      }
    </style>
    <script>
      document.addEventListener("DOMContentLoaded", function () {
        mermaid.initialize({ startOnLoad: false });
        let id = 0;
        for (const codeEl of document.querySelectorAll("pre code.mermaid")) {
          const preEl = codeEl.parentElement;
          const graphDefinition = codeEl.textContent;
          const graphEl = document.createElement("div");
          graphEl.classList.add("diagramWrapper");
          const graphId = "mermaid-graph-" + id++;
          mermaid.render(graphId, graphDefinition, function (svgSource, bindListeners) {
            graphEl.innerHTML = svgSource;
            bindListeners && bindListeners(graphEl);
            preEl.insertAdjacentElement("afterend", graphEl);
            preEl.remove();
          });
        }
      });
    </script>
    """
  end
end