philomena/lib/philomena_web/controllers/search/reverse_controller.ex

defmodule PhilomenaWeb.Search.ReverseController do
  use PhilomenaWeb, :controller

  alias Philomena.DuplicateReports.SearchQuery
  alias Philomena.DuplicateReports

  plug PhilomenaWeb.ScraperCachePlug
  plug PhilomenaWeb.ScraperPlug, params_key: "image", params_name: "image"

  def index(conn, params) do
    create(conn, params)
  end

  def create(conn, %{"image" => image_params})
      when is_map(image_params) and image_params != %{} do
    case DuplicateReports.execute_search_query(image_params) do
      {:ok, images} ->
        changeset = DuplicateReports.change_search_query(%SearchQuery{})
        render(conn, "index.html", title: "Reverse Search", images: images, changeset: changeset)

      {:error, changeset} ->
        render(conn, "index.html", title: "Reverse Search", images: nil, changeset: changeset)
    end
  end

  def create(conn, _params) do
    changeset = DuplicateReports.change_search_query(%SearchQuery{})
    render(conn, "index.html", title: "Reverse Search", images: nil, changeset: changeset)
  end
end