From 43fb03be5a8968c1df23938ed4f5a93825ab476c Mon Sep 17 00:00:00 2001
From: eugenijm <eugenijm@protonmail.com>
Date: Fri, 15 Mar 2019 20:06:28 +0300
Subject: [PATCH] Allow to mark a single notification as read

---
 docs/Pleroma-API.md                           |  8 +++++++
 lib/pleroma/notification.ex                   | 14 ++++++++++++
 lib/pleroma/web/router.ex                     |  6 +++++
 .../controllers/util_controller.ex            | 12 ++++++++++
 test/web/twitter_api/util_controller_test.exs | 22 +++++++++++++++++++
 5 files changed, 62 insertions(+)

diff --git a/docs/Pleroma-API.md b/docs/Pleroma-API.md
index 379d3dbed..478c9d874 100644
--- a/docs/Pleroma-API.md
+++ b/docs/Pleroma-API.md
@@ -108,3 +108,11 @@ See [Admin-API](Admin-API.md)
 * Response: JSON string. Returns the user flavour or the default one.
 * Example response: "glitch"
 * Note: This is intended to be used only by mastofe
+
+## `/api/pleroma/notifications/read`
+### Mark a single notification as read
+* Method `POST`
+* Authentication: required
+* Params:
+    * `id`: notifications's id
+* Response: JSON. Returns `{"status": "success"}` if the reading was successful, otherwise returns `{"error": "error_msg"}`
diff --git a/lib/pleroma/notification.ex b/lib/pleroma/notification.ex
index fe8181d8b..765191275 100644
--- a/lib/pleroma/notification.ex
+++ b/lib/pleroma/notification.ex
@@ -13,6 +13,7 @@ defmodule Pleroma.Notification do
   alias Pleroma.Web.CommonAPI.Utils
 
   import Ecto.Query
+  import Ecto.Changeset
 
   schema "notifications" do
     field(:seen, :boolean, default: false)
@@ -22,6 +23,11 @@ defmodule Pleroma.Notification do
     timestamps()
   end
 
+  def changeset(%Notification{} = notification, attrs) do
+    notification
+    |> cast(attrs, [:seen])
+  end
+
   # TODO: Make generic and unify (see activity_pub.ex)
   defp restrict_max(query, %{"max_id" => max_id}) do
     from(activity in query, where: activity.id < ^max_id)
@@ -68,6 +74,14 @@ def set_read_up_to(%{id: user_id} = _user, id) do
     Repo.update_all(query, [])
   end
 
+  def read_one(%User{} = user, notification_id) do
+    with {:ok, %Notification{} = notification} <- get(user, notification_id) do
+      notification
+      |> changeset(%{seen: true})
+      |> Repo.update()
+    end
+  end
+
   def get(%{id: user_id} = _user, id) do
     query =
       from(
diff --git a/lib/pleroma/web/router.ex b/lib/pleroma/web/router.ex
index c56e4a421..befd382ba 100644
--- a/lib/pleroma/web/router.ex
+++ b/lib/pleroma/web/router.ex
@@ -190,6 +190,12 @@ defmodule Pleroma.Web.Router do
       post("/blocks_import", UtilController, :blocks_import)
       post("/follow_import", UtilController, :follow_import)
     end
+
+    scope [] do
+      pipe_through(:oauth_read)
+
+      post("/notifications/read", UtilController, :notifications_read)
+    end
   end
 
   scope "/oauth", Pleroma.Web.OAuth do
diff --git a/lib/pleroma/web/twitter_api/controllers/util_controller.ex b/lib/pleroma/web/twitter_api/controllers/util_controller.ex
index 8ed02a93f..320ec778c 100644
--- a/lib/pleroma/web/twitter_api/controllers/util_controller.ex
+++ b/lib/pleroma/web/twitter_api/controllers/util_controller.ex
@@ -9,6 +9,7 @@ defmodule Pleroma.Web.TwitterAPI.UtilController do
 
   alias Comeonin.Pbkdf2
   alias Pleroma.Emoji
+  alias Pleroma.Notification
   alias Pleroma.PasswordResetToken
   alias Pleroma.Repo
   alias Pleroma.User
@@ -142,6 +143,17 @@ def do_remote_follow(%{assigns: %{user: user}} = conn, %{"user" => %{"id" => id}
     end
   end
 
+  def notifications_read(%{assigns: %{user: user}} = conn, %{"id" => notification_id}) do
+    with {:ok, _} <- Notification.read_one(user, notification_id) do
+      json(conn, %{status: "success"})
+    else
+      {:error, message} ->
+        conn
+        |> put_resp_content_type("application/json")
+        |> send_resp(403, Jason.encode!(%{"error" => message}))
+    end
+  end
+
   def config(conn, _params) do
     instance = Pleroma.Config.get(:instance)
     instance_fe = Pleroma.Config.get(:fe)
diff --git a/test/web/twitter_api/util_controller_test.exs b/test/web/twitter_api/util_controller_test.exs
index fc762ab18..6e8a25056 100644
--- a/test/web/twitter_api/util_controller_test.exs
+++ b/test/web/twitter_api/util_controller_test.exs
@@ -1,6 +1,9 @@
 defmodule Pleroma.Web.TwitterAPI.UtilControllerTest do
   use Pleroma.Web.ConnCase
 
+  alias Pleroma.Notification
+  alias Pleroma.Repo
+  alias Pleroma.Web.CommonAPI
   import Pleroma.Factory
 
   describe "POST /api/pleroma/follow_import" do
@@ -52,6 +55,25 @@ test "it returns HTTP 200", %{conn: conn} do
     end
   end
 
+  describe "POST /api/pleroma/notifications/read" do
+    test "it marks a single notification as read", %{conn: conn} do
+      user1 = insert(:user)
+      user2 = insert(:user)
+      {:ok, activity1} = CommonAPI.post(user2, %{"status" => "hi @#{user1.nickname}"})
+      {:ok, activity2} = CommonAPI.post(user2, %{"status" => "hi @#{user1.nickname}"})
+      {:ok, [notification1]} = Notification.create_notifications(activity1)
+      {:ok, [notification2]} = Notification.create_notifications(activity2)
+
+      conn
+      |> assign(:user, user1)
+      |> post("/api/pleroma/notifications/read", %{"id" => "#{notification1.id}"})
+      |> json_response(:ok)
+
+      assert Repo.get(Notification, notification1.id).seen
+      refute Repo.get(Notification, notification2.id).seen
+    end
+  end
+
   describe "GET /api/statusnet/config.json" do
     test "it returns the managed config", %{conn: conn} do
       Pleroma.Config.put([:instance, :managed_config], false)