defmodule Blogue do
  @moduledoc """
  """

  @doc """
  """
  def build_home(index_path) do
    posts_meta = posts(Path.join(Path.dirname(index_path), "post")) |> Enum.map(&meta/1)

    built_html =
      index_path
      |> EEx.eval_file(posts: posts_meta)

    File.write(Path.join(Path.dirname(index_path), "index.html"), built_html)
  end

  def posts(posts_path) do
    File.ls!(posts_path)
    |> Enum.map(&Path.join(posts_path, &1))
  end

  def meta(post_path) do
    parsed_page =
      Path.join(post_path, "index.html")
      |> File.read!()
      |> Floki.parse()

    title =
      parsed_page
      |> Floki.find("title")
      |> Floki.text()

    date =
      parsed_page
      |> Floki.find("meta")
      |> Enum.map(
        &[name: hd(Floki.attribute(&1, "name")), content: hd(Floki.attribute(&1, "content"))]
      )
      |> Enum.filter(&(&1[:name] == "date"))
      |> hd

    [href: String.slice(post_path, 1..-1), title: title, date: date[:content]]
  end
end

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