From 4c5b5f14dcec51cba8e86bcfcf2943ee9b49b0e4 Mon Sep 17 00:00:00 2001
From: lain <lain@soykaf.club>
Date: Mon, 20 Jan 2020 16:24:20 +0100
Subject: [PATCH] StatusView: Add `emoji_reactions`

---
 CHANGELOG.md                                  |  1 +
 docs/API/differences_in_mastoapi_responses.md |  1 +
 .../web/mastodon_api/views/status_view.ex     | 13 ++++++++++++-
 .../mastodon_api/views/status_view_test.exs   | 19 ++++++++++++++++++-
 4 files changed, 32 insertions(+), 2 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index af497dcba..871b01ca3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -93,6 +93,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - Captcha: Support native provider
 - Captcha: Enable by default
 - Mastodon API: Add support for `account_id` param to filter notifications by the account
+- Mastodon API: Add `emoji_reactions` property to Statuses
 </details>
 
 ### Fixed
diff --git a/docs/API/differences_in_mastoapi_responses.md b/docs/API/differences_in_mastoapi_responses.md
index bb62ed5f2..50076cf98 100644
--- a/docs/API/differences_in_mastoapi_responses.md
+++ b/docs/API/differences_in_mastoapi_responses.md
@@ -29,6 +29,7 @@ Has these additional fields under the `pleroma` object:
 - `spoiler_text`: a map consisting of alternate representations of the `spoiler_text` property with the key being it's mimetype. Currently the only alternate representation supported is `text/plain`
 - `expires_at`: a datetime (iso8601) that states when the post will expire (be deleted automatically), or empty if the post won't expire
 - `thread_muted`: true if the thread the post belongs to is muted
+- `emoji_reactions`: An object with all the emoji reactions with count. Contains no information about the reacting users, for that use the `emoji_reactions_by` endpoint.
 
 ## Attachments
 
diff --git a/lib/pleroma/web/mastodon_api/views/status_view.ex b/lib/pleroma/web/mastodon_api/views/status_view.ex
index e9590224b..b59ac39bc 100644
--- a/lib/pleroma/web/mastodon_api/views/status_view.ex
+++ b/lib/pleroma/web/mastodon_api/views/status_view.ex
@@ -253,6 +253,16 @@ def render("show.json", %{activity: %{data: %{"object" => _object}} = activity}
           nil
       end
 
+    emoji_reactions =
+      with %{data: %{"reactions" => emoji_reactions}} <- object do
+        Enum.map(emoji_reactions, fn {emoji, users} ->
+          {emoji, length(users)}
+        end)
+        |> Enum.into(%{})
+      else
+        _ -> %{}
+      end
+
     %{
       id: to_string(activity.id),
       uri: object.data["id"],
@@ -293,7 +303,8 @@ def render("show.json", %{activity: %{data: %{"object" => _object}} = activity}
         spoiler_text: %{"text/plain" => summary_plaintext},
         expires_at: expires_at,
         direct_conversation_id: direct_conversation_id,
-        thread_muted: thread_muted?
+        thread_muted: thread_muted?,
+        emoji_reactions: emoji_reactions
       }
     }
   end
diff --git a/test/web/mastodon_api/views/status_view_test.exs b/test/web/mastodon_api/views/status_view_test.exs
index 17b6ebcbc..b54b19c0b 100644
--- a/test/web/mastodon_api/views/status_view_test.exs
+++ b/test/web/mastodon_api/views/status_view_test.exs
@@ -24,6 +24,22 @@ defmodule Pleroma.Web.MastodonAPI.StatusViewTest do
     :ok
   end
 
+  test "has an emoji reaction list" do
+    user = insert(:user)
+    other_user = insert(:user)
+    third_user = insert(:user)
+    {:ok, activity} = CommonAPI.post(user, %{"status" => "dae cofe??"})
+
+    {:ok, _, _} = CommonAPI.react_with_emoji(activity.id, user, "☕")
+    {:ok, _, _} = CommonAPI.react_with_emoji(activity.id, other_user, "☕")
+    {:ok, _, _} = CommonAPI.react_with_emoji(activity.id, third_user, "🍵")
+    activity = Repo.get(Activity, activity.id)
+    status = StatusView.render("show.json", activity: activity)
+
+    assert status[:pleroma][:emoji_reactions]["🍵"] == 1
+    assert status[:pleroma][:emoji_reactions]["☕"] == 2
+  end
+
   test "loads and returns the direct conversation id when given the `with_direct_conversation_id` option" do
     user = insert(:user)
 
@@ -172,7 +188,8 @@ test "a note activity" do
         spoiler_text: %{"text/plain" => HTML.strip_tags(object_data["summary"])},
         expires_at: nil,
         direct_conversation_id: nil,
-        thread_muted: false
+        thread_muted: false,
+        emoji_reactions: %{}
       }
     }