From 752fe1731e4dc7c7e0494256e95ba0a3bb1a8ff1 Mon Sep 17 00:00:00 2001
From: Renaud Chaput <renchap@gmail.com>
Date: Tue, 7 May 2024 11:42:10 +0200
Subject: [PATCH] Add `icon` field to instance endpoint

As we now allow admins to customize their app icon, it may be useful to expose it so apps can use it in the UI.

This is using the Android icons as they provide a good range of sizes.
---
 app/serializers/rest/instance_serializer.rb | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/app/serializers/rest/instance_serializer.rb b/app/serializers/rest/instance_serializer.rb
index 8df79db6c77..926d0f069b8 100644
--- a/app/serializers/rest/instance_serializer.rb
+++ b/app/serializers/rest/instance_serializer.rb
@@ -7,10 +7,12 @@ class REST::InstanceSerializer < ActiveModel::Serializer
     has_one :account, serializer: REST::AccountSerializer
   end
 
+  include InstanceHelper
+  include ApplicationHelper
   include RoutingHelper
 
   attributes :domain, :title, :version, :source_url, :description,
-             :usage, :thumbnail, :languages, :configuration,
+             :usage, :thumbnail, :icon, :languages, :configuration,
              :registrations
 
   has_one :contact, serializer: ContactSerializer
@@ -33,6 +35,18 @@ class REST::InstanceSerializer < ActiveModel::Serializer
     end
   end
 
+  def icon
+    SiteUpload::ANDROID_ICON_SIZES.map do |size|
+      src = app_icon_path(size.to_i)
+      src = URI.join(root_url, src).to_s if src.present?
+
+      {
+        src: src || frontend_asset_url("icons/android-chrome-#{size}x#{size}.png"),
+        size: "#{size}x#{size}",
+      }
+    end
+  end
+
   def usage
     {
       users: {