# Pleroma: A lightweight social networking server
# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only

defmodule Pleroma.Web.MastodonAPI.NotificationController do
  use Pleroma.Web, :controller

  import Pleroma.Web.ControllerHelper, only: [add_link_headers: 2, skip_relationships?: 1]

  alias Pleroma.Notification
  alias Pleroma.Plugs.OAuthScopesPlug
  alias Pleroma.Web.MastodonAPI.MastodonAPI

  @oauth_read_actions [:show, :index]

  plug(
    OAuthScopesPlug,
    %{scopes: ["read:notifications"]} when action in @oauth_read_actions
  )

  plug(OAuthScopesPlug, %{scopes: ["write:notifications"]} when action not in @oauth_read_actions)

  plug(Pleroma.Plugs.EnsurePublicOrAuthenticatedPlug)

  # GET /api/v1/notifications
  def index(conn, %{"account_id" => account_id} = params) do
    case Pleroma.User.get_cached_by_id(account_id) do
      %{ap_id: account_ap_id} ->
        params =
          params
          |> Map.delete("account_id")
          |> Map.put("account_ap_id", account_ap_id)

        index(conn, params)

      _ ->
        conn
        |> put_status(:not_found)
        |> json(%{"error" => "Account is not found"})
    end
  end

  def index(%{assigns: %{user: user}} = conn, params) do
    notifications = MastodonAPI.get_notifications(user, params)

    conn
    |> add_link_headers(notifications)
    |> render("index.json",
      notifications: notifications,
      for: user,
      skip_relationships: skip_relationships?(params)
    )
  end

  # GET /api/v1/notifications/:id
  def show(%{assigns: %{user: user}} = conn, %{"id" => id}) do
    with {:ok, notification} <- Notification.get(user, id) do
      render(conn, "show.json", notification: notification, for: user)
    else
      {:error, reason} ->
        conn
        |> put_status(:forbidden)
        |> json(%{"error" => reason})
    end
  end

  # POST /api/v1/notifications/clear
  def clear(%{assigns: %{user: user}} = conn, _params) do
    Notification.clear(user)
    json(conn, %{})
  end

  # POST /api/v1/notifications/dismiss
  def dismiss(%{assigns: %{user: user}} = conn, %{"id" => id} = _params) do
    with {:ok, _notif} <- Notification.dismiss(user, id) do
      json(conn, %{})
    else
      {:error, reason} ->
        conn
        |> put_status(:forbidden)
        |> json(%{"error" => reason})
    end
  end

  # DELETE /api/v1/notifications/destroy_multiple
  def destroy_multiple(%{assigns: %{user: user}} = conn, %{"ids" => ids} = _params) do
    Notification.destroy_multiple(user, ids)
    json(conn, %{})
  end
end