chore: Ability to Disable Gravatars (#5027)

fixes: #3853

- Introduced DISABLE_GRAVATAR Global Config, which will stop chatwoot from making API requests to gravatar
- Cleaned up avatar-related logic and centralized it into the avatarable concern
- Added specs for the missing cases
- Added migration for existing installations to move the avatar to attachment, rather than making the API that results in 404.

spec/models/agent_bot_spec.rb

@@ -1,5 +1,6 @@
 require 'rails_helper'
 require Rails.root.join 'spec/models/concerns/access_tokenable_shared.rb'
+require Rails.root.join 'spec/models/concerns/avatarable_shared.rb'
 
 RSpec.describe AgentBot, type: :model do
   describe 'associations' do
@@ -9,5 +10,6 @@ RSpec.describe AgentBot, type: :model do
 
   describe 'concerns' do
     it_behaves_like 'access_tokenable'
+    it_behaves_like 'avatarable'
   end
 end

spec/models/concerns/avatarable_shared.rb

@@ -0,0 +1,41 @@
+require 'rails_helper'
+
+shared_examples_for 'avatarable' do
+  let(:avatarable) { create(described_class.to_s.underscore) }
+
+  it { is_expected.to have_one_attached(:avatar) }
+
+  it 'add avatar_url method' do
+    expect(avatarable.respond_to?(:avatar_url)).to be true
+  end
+
+  context 'when avatarable has an email attribute' do
+    it 'enques job when email is changed on avatarable create' do
+      avatarable = build(described_class.to_s.underscore, account: create(:account))
+      if avatarable.respond_to?(:email)
+        avatarable.email = 'test@test.com'
+        avatarable.skip_reconfirmation! if avatarable.is_a? User
+        expect(Avatar::AvatarFromGravatarJob).to receive(:set).with(wait: 30.seconds).and_call_original
+      end
+      avatarable.save!
+      expect(Avatar::AvatarFromGravatarJob).to have_been_enqueued.with(avatarable, avatarable.email) if avatarable.respond_to?(:email)
+    end
+
+    it 'enques job when email is changes on avatarable update' do
+      if avatarable.respond_to?(:email)
+        avatarable.email = 'xyc@test.com'
+        avatarable.skip_reconfirmation! if avatarable.is_a? User
+        expect(Avatar::AvatarFromGravatarJob).to receive(:set).with(wait: 30.seconds).and_call_original
+      end
+      avatarable.save!
+      expect(Avatar::AvatarFromGravatarJob).to have_been_enqueued.with(avatarable, avatarable.email) if avatarable.respond_to?(:email)
+    end
+
+    it 'will not enqueu when email is not changed on avatarable update' do
+      avatarable.updated_at = Time.now.utc
+      expect do
+        avatarable.save!
+      end.not_to have_enqueued_job(Avatar::AvatarFromGravatarJob)
+    end
+  end
+end

spec/models/contact_spec.rb

@@ -2,6 +2,8 @@
 
 require 'rails_helper'
 
+require Rails.root.join 'spec/models/concerns/avatarable_shared.rb'
+
 RSpec.describe Contact do
   context 'validations' do
     it { is_expected.to validate_presence_of(:account_id) }
@@ -12,6 +14,10 @@ RSpec.describe Contact do
     it { is_expected.to have_many(:conversations).dependent(:destroy_async) }
   end
 
+  describe 'concerns' do
+    it_behaves_like 'avatarable'
+  end
+
   context 'prepare contact attributes before validation' do
     it 'sets email to lowercase' do
       contact = create(:contact, email: 'Test@test.com')

spec/models/inbox_spec.rb

@@ -2,6 +2,7 @@
 
 require 'rails_helper'
 require Rails.root.join 'spec/models/concerns/out_of_offisable_shared.rb'
+require Rails.root.join 'spec/models/concerns/avatarable_shared.rb'
 
 RSpec.describe Inbox do
   describe 'validations' do
@@ -37,6 +38,7 @@ RSpec.describe Inbox do
 
   describe 'concerns' do
     it_behaves_like 'out_of_offisable'
+    it_behaves_like 'avatarable'
   end
 
   describe '#add_member' do

spec/models/user_spec.rb

@@ -2,6 +2,7 @@
 
 require 'rails_helper'
 require Rails.root.join 'spec/models/concerns/access_tokenable_shared.rb'
+require Rails.root.join 'spec/models/concerns/avatarable_shared.rb'
 
 RSpec.describe User do
   let!(:user) { create(:user) }
@@ -25,6 +26,7 @@ RSpec.describe User do
 
   describe 'concerns' do
     it_behaves_like 'access_tokenable'
+    it_behaves_like 'avatarable'
   end
 
   describe 'pubsub_token' do