defmodule PhoenixMin do
  @moduledoc """
  Phoenix Min - Slim down Phoenix to LiveView-only with inline HEEx templates.

  Phoenix Min is a post-installation tool that transforms a default Phoenix 
  installation by:

  - Removing controller-based infrastructure (PageController, PageHTML, etc.)
  - Converting all generated templates to inline HEEx using the `~H` sigil
  - Creating a LiveView-based home page
  - Converting layouts to inline templates
  - Converting error views to inline templates
  - Updating tests to work with LiveView
  - Cleaning up template directories

  ## Installation

  Add to your Phoenix project's `mix.exs`:

      {:phoenix_min, "~> 0.1.0", only: [:dev], runtime: false}

  Then run:

      mix igniter.install phoenix_min

  Or simply:

      mix phoenix_min.install

  ## What Gets Modified

  - `lib/your_app_web/router.ex` - Root route changed to LiveView
  - `lib/your_app_web/home_live.ex` - New LiveView with inline template (created)
  - `lib/your_app_web/components/layouts.ex` - Converted to inline templates
  - `lib/your_app_web/controllers/error_html.ex` - Converted to inline templates
  - `lib/your_app_web/controllers/page_*` - Removed
  - `lib/your_app_web/components/layouts/*` - Removed
  - `lib/your_app_web/controllers/error_html/*` - Removed
  - `test/your_app_web/controllers/page_controller_test.exs` - Converted to LiveView test

  ## Philosophy

  Phoenix Min embraces:

  1. **LiveView-first**: All pages are LiveViews, no controllers
  2. **Colocation**: Templates live in the same file as behavior
  3. **Simplicity**: Less files, less directories, easier navigation
  4. **Flexibility**: Works with or without Ecto, assets, gettext, etc.
  """

  @doc """
  Returns the web module name for a given app name.

  ## Examples

      iex> PhoenixMin.web_module(:hello)
      HelloWeb

      iex> PhoenixMin.web_module(:my_app)
      MyAppWeb
  """
  def web_module(app_name) when is_atom(app_name) do
    base =
      app_name
      |> Atom.to_string()
      |> Macro.camelize()

    Module.concat([base <> "Web"])
  end
end