chore: Add unread notification count API (#1646)

Co-authored-by: Sojan <sojan@pepalo.com>

app/controllers/api/v1/accounts/notifications_controller.rb

@@ -27,6 +27,11 @@ class Api::V1::Accounts::NotificationsController < Api::V1::Accounts::BaseContro
     render json: @notification
   end
 
+  def unread_count
+    @unread_count = current_user.notifications.where(account_id: current_account.id, read_at: nil).count
+    render json: @unread_count
+  end
+
   private
 
   def set_primary_actor

config/routes.rb

@@ -92,6 +92,7 @@ Rails.application.routes.draw do
           resources :notifications, only: [:index, :update] do
             collection do
               post :read_all
+              get :unread_count
             end
           end
           resource :notification_settings, only: [:show, :update]

spec/controllers/api/v1/accounts/notifications_controller_spec.rb

@@ -102,4 +102,29 @@ RSpec.describe 'Notifications API', type: :request do
       end
     end
   end
+
+  describe 'GET /api/v1/accounts/{account.id}/notifications/unread_count' do
+    context 'when it is an unauthenticated user' do
+      it 'returns unauthorized' do
+        get "/api/v1/accounts/#{account.id}/notifications/unread_count"
+
+        expect(response).to have_http_status(:unauthorized)
+      end
+    end
+
+    context 'when it is an authenticated user' do
+      let(:admin) { create(:user, account: account, role: :administrator) }
+
+      it 'returns notifications unread count' do
+        2.times.each { create(:notification, account: account, user: admin) }
+        get "/api/v1/accounts/#{account.id}/notifications/unread_count",
+            headers: admin.create_new_auth_token,
+            as: :json
+
+        response_json = JSON.parse(response.body)
+        expect(response).to have_http_status(:success)
+        expect(response_json).to eq 2
+      end
+    end
+  end
 end