chiya/lib/chiya_web/controllers/page_html.ex

defmodule ChiyaWeb.PageHTML do
  use ChiyaWeb, :html_public
  import Phoenix.HTML.Tag, only: [content_tag: 3, content_tag: 2]

  embed_templates "page_html/*"

  def tag_list([]), do: "No Tags"
  def tag_list(tags), do: Enum.map_join(tags, ", ", fn t -> t.name end)

  def render_outline(note) do
    list = ChiyaWeb.Outline.get(note.content)
    Enum.map(list, &do_render_outline/1)
  end

  def do_render_outline(%{text: text, children: children, level: _level}) do
    content_tag(:ul, [class: "m-0"],
      do: [
        content_tag(:li, do: content_tag(:a, text, href: "##{Slugger.slugify_downcase(text)}")),
        Enum.map(children, &do_render_outline/1)
      ]
    )
  end
end