defmodule MoonWeb.Components.CoreComponents do
  @moduledoc """
  Provides core UI components.

  At the first glance, this module may seem daunting, but its goal is
  to provide some core building blocks in your application, such as modals,
  tables, and forms. The components are mostly markup and well documented
  with doc strings and declarative assigns. You may customize and style
  them in any way you want, based on your application growth and needs.

  The default components use Tailwind CSS, a utility-first CSS framework.
  See the [Tailwind CSS documentation](https://tailwindcss.com) to learn
  how to customize them or feel free to swap in another framework altogether.

  Icons are provided by [heroicons](https://heroicons.com). See `icon/1` for usage.
  """
  use Phoenix.Component

  alias Phoenix.LiveView.JS

  @doc """
  Renders a modal.

  ## Examples

      <.modal id="confirm-modal">
        This is a modal.
      </.modal>

  JS commands may be passed to the `:on_cancel` to configure
  the closing/cancel event, for example:

      <.modal id="confirm" on_cancel={JS.navigate(~p"/posts")}>
        This is another modal.
      </.modal>

  """
  attr :id, :string, required: true
  attr :show, :boolean, default: false
  attr :on_cancel, JS, default: %JS{}
  slot :inner_block, required: true

  def modal(assigns) do
    ~H"""
    <div id={@id} data-cancel={JS.exec(@on_cancel, "phx-remove")} class="relative z-50 hidden">
      <div id={"#{@id}-bg"} class="bg-zinc-50/90 fixed inset-0 transition-opacity" aria-hidden="true" />
      <div
        class="fixed inset-0 overflow-y-auto"
        aria-labelledby={"#{@id}-title"}
        aria-describedby={"#{@id}-description"}
        role="dialog"
        aria-modal="true"
        tabindex="0"
      >
        <div class="flex min-h-full items-center justify-center">
          <div class="w-full max-w-3xl p-4 sm:p-6 lg:py-8">
            <.focus_wrap
              id={"#{@id}-container"}
              phx-window-keydown={JS.exec("data-cancel", to: "##{@id}")}
              phx-key="escape"
              phx-click-away={JS.exec("data-cancel", to: "##{@id}")}
              class="shadow-zinc-700/10 ring-zinc-700/10 relative hidden rounded-2xl bg-gohan p-14 shadow-lg ring-1 transition"
            >
              <div class="absolute top-6 right-5">
                <button
                  phx-click={JS.exec("data-cancel", to: "##{@id}")}
                  type="button"
                  class="-m-3 flex-none p-3 opacity-20 hover:opacity-40"
                  aria-label="close"
                >
                  <.hero_icon name="hero-x-mark-solid" class="h-5 w-5" />
                </button>
              </div>
              <div id={"#{@id}-content"}>
                <%= render_slot(@inner_block) %>
              </div>
            </.focus_wrap>
          </div>
        </div>
      </div>
    </div>
    """
  end

  @doc """
  Renders a [Heroicon](https://heroicons.com).

  Heroicons come in three styles – outline, solid, and mini.
  By default, the outline style is used, but solid and mini may
  be applied by using the `-solid` and `-mini` suffix.

  You can customize the size and colors of the icons by setting
  width, height, and background color classes.

  Icons are extracted from your `assets/vendor/heroicons` directory and bundled
  within your compiled app.css by the plugin in your `assets/tailwind.config.js`.

  ## Examples

      <.icon name="hero-x-mark-solid" />
      <.icon name="hero-arrow-path" class="ml-1 w-3 h-3 animate-spin" />
  """
  attr :name, :string, required: true
  attr :class, :string, default: nil

  def hero_icon(assigns = %{name: "hero-" <> _}) do
    ~H"""
    <span class={[@name, @class]} />
    """
  end
end