defmodule FrenzyWeb.FeedController do
  use FrenzyWeb, :controller
  alias Frenzy.{Repo, Feed, Filter, Item}
  alias FrenzyWeb.Router.Helpers, as: Routes
  alias FrenzyWeb.Endpoint
  import Ecto.Query

  def index(conn, _params) do
    render(conn, "index.html", feeds: Repo.all(Feed))
  end

  def show(conn, %{"id" => id}) do
    feed = Repo.get(Feed, id) |> Repo.preload(:filter)
    items = Repo.all(from Item, where: [feed_id: ^id], order_by: [desc: :date])

    render(conn, "show.html", %{
      feed: feed,
      items: items
    })
  end

  def new(conn, _params) do
    changeset = Feed.changeset(%Feed{}, %{})

    render(conn, "new.html", changeset: changeset)
  end

  def create(conn, %{"feed" => feed}) do
    changeset =
      Feed.changeset(
        %Feed{
          filter: %Filter{
            mode: "accept",
            score: 0,
            rules: []
          }
        },
        feed
      )

    {:ok, feed} = Repo.insert(changeset)
    redirect(conn, to: Routes.feed_path(Endpoint, :index))
  end

  def enable_filter(conn, %{"id" => id}) do
    feed = Repo.get(Feed, id) |> Repo.preload(:filter)
    changeset = Feed.changeset(feed, %{filter_enabled: true})
    Repo.update(changeset)
    redirect(conn, to: Routes.feed_path(Endpoint, :show, id))
  end

  def disable_filter(conn, %{"id" => id}) do
    feed = Repo.get(Feed, id)
    changeset = Feed.changeset(feed, %{filter_enabled: false})
    Repo.update(changeset)
    redirect(conn, to: Routes.feed_path(Endpoint, :show, id))
  end

  def delete(conn, %{"id" => id}) do
    feed = Repo.get(Feed, id)
    {:ok, _} = Repo.delete(feed)
    redirect(conn, to: Routes.feed_path(Endpoint, :index))
  end

  def refresh(conn, %{"id" => id}) do
    feed = Repo.get(Feed, id)
    feed = Frenzy.UpdateFeeds.refresh(Frenzy.UpdateFeeds, feed)
    redirect(conn, to: Routes.feed_path(Endpoint, :show, feed.id))
  end
end