defmodule Extube do
  @moduledoc """
  Extube is a wrapper for the hubtraffic API.
  It gathers data from multiple tube sites including
  pornhub,
  redtube,
  tube8,
  youporn,
  xtube,
  spankwire,
  keezmovies,
  and extremetube. 
  """

  @doc """
  Queries the hubtraffic API to search for videos given a map of parameters.  
  Parameters right now include the following:  

  `:category`  
  `:page`  
  `:search`  
  `:ordering`  
  `:period`  
  `:thumbsize`   (Required)  

  For information on possible values of the parameters, see here  

  <https://www.hubtraffic.com/resources/api?site_id=3>

  """
  def search_videos(params \\ %{thumbsize: "medium"}) do
    base_url = "https://www.pornhub.com/webmasters/search?"
    handle_hubtraffic_call(base_url, params)
  end

  @doc """
  Retrieves additional information about specific video by id parameter.

  ## Parameters:
  
  `id` (Required) Integer

  `thumbsize` (Optional)  If set, provides additional thumbnails in different formats. Possible values are small,medium,large,small_hd,medium_hd,large_hd
  """
  def get_video_by_id(video_id, thumbsize \\ "medium") do
    base = "https://www.pornhub.com/webmasters/video_by_id?"
    handle_hubtraffic_call(base, %{
      id: video_id,
      thumbsize: thumbsize
    })
  end

  @doc """
  Retrieves embed code for specific video by video_id parameter, which is useful to automatically embed videos.

  ## Parameters:
  
  `id` (Required) Integer
  """
  def get_video_embed_code(video_id) do
    base = "https://www.pornhub.com/webmasters/video_embed_code?"
    handle_hubtraffic_call(base, %{
      id: video_id
    })
  end

  @doc """
  Retrieves all deleted videos.

  ## Parameters:

  `page` (Required) Integer
  """
  def get_deleted_videos(page) do
    base = "https://www.pornhub.com/webmasters/deleted_videos?"
    handle_hubtraffic_call(base, %{
      page: page
    })
  end

  @doc """
  Retrieves state of a specific video specified by is_video_active parameter, which is useful in order to keep your embedded videos up to date.

  ## Parameters:

  `id` (Required) Integer
  """
  def is_video_active(video_id) do
    base = "https://www.pornhub.com/webmasters/is_video_active?"
    handle_hubtraffic_call(base, %{
      id: video_id
    })
  end

  @doc """
  Retrieves all available categories.
  """
  def get_categories_list do
    handle_hubtraffic_call("http://www.pornhub.com/webmasters/categories", %{})
  end

  @doc """
  Retrieves all tags available.

  ## Parameters:

  `list` a-z for tag starting letter, 0 for other.
  """
  def get_tags_list(starts_with) do
    base = "https://www.pornhub.com/webmasters/tags?"
    handle_hubtraffic_call(base, %{
      list: starts_with
    })
  end

  @doc """
  Retrieves all pornstars available.
  """
  def get_star_list do
    handle_hubtraffic_call("https://www.pornhub.com/webmasters/stars", %{})
  end

  @doc """
  Retrieves all pornstars available with details (page url and star's thumb).
  """
  def get_star_detailed_list do
    handle_hubtraffic_call("https://www.pornhub.com/webmasters/stars_detailed", %{})
  end

  defp handle_hubtraffic_call(base_url, params) do
    url = base_url <> URI.encode_query(params)
    {:ok, data} = HTTPoison.get(url)
    data_map = Poison.decode!(data.body)
    case hubtraffic_error_code(data_map["code"]) do
      :error -> {:error, data_map["message"]}
      :success -> {:success, data_map}
    end
  end

  defp hubtraffic_error_code(code) do
    error_codes = [
      "1001",
      "1002",
      "1003",
      "2001",
      "2002",
      "3001",
      "3002",
      "3003",
    ]
    case (code in error_codes) do
      true -> :error
      false -> :success
    end
  end

end