chore: Improve Whatsapp Templates Sync (#7210)

- update the templates updated at, even if the API request fails ( to prevent jobs from stacking up in case of API failures upstream )
- sequence the job in batches of 25 requests per minutes schedule ( in case API response time is high, also not to send too many requests in a single batch )
- move the sync job re-rerun to 3 hours ( since we are updating the updated at even in case of failures )(prev 15 minutes )

Fixes: https://linear.app/chatwoot/issue/CW-1590

spec/services/whatsapp/providers/whatsapp360_dialog_service_spec.rb

@@ -0,0 +1,21 @@
+## the specs are covered in send in spec/services/whatsapp/send_on_whatsapp_service_spec.rb
+require 'rails_helper'
+
+describe Whatsapp::Providers::Whatsapp360DialogService do
+  subject(:service) { described_class.new(whatsapp_channel: whatsapp_channel) }
+
+  let!(:whatsapp_channel) { create(:channel_whatsapp, sync_templates: false, validate_provider_config: false) }
+
+  describe '#sync_templates' do
+    context 'when called' do
+      it 'updates message_templates_last_updated even when template request fails' do
+        stub_request(:get, 'https://waba.360dialog.io/v1/configs/templates')
+          .to_return(status: 401)
+
+        timstamp = whatsapp_channel.reload.message_templates_last_updated
+        subject.sync_templates
+        expect(whatsapp_channel.reload.message_templates_last_updated).not_to eq(timstamp)
+      end
+    end
+  end
+end

spec/services/whatsapp/providers/whatsapp_360_dialog_service_spec.rb

@@ -1 +0,0 @@
-## the specs are covered in send in spec/services/whatsapp/send_on_whatsapp_service_spec.rb

spec/services/whatsapp/providers/whatsapp_cloud_service_spec.rb

@@ -127,10 +127,21 @@ describe Whatsapp::Providers::WhatsappCloudService do
               ], paging: { prev: 'https://graph.facebook.com/v14.0/123456789/message_templates?access_token=test_key' } }.to_json }
           )
 
+        timstamp = whatsapp_channel.reload.message_templates_last_updated
         expect(subject.sync_templates).to be(true)
         expect(whatsapp_channel.reload.message_templates.first).to eq({ id: '123456789', name: 'test_template' }.stringify_keys)
         expect(whatsapp_channel.reload.message_templates.second).to eq({ id: '123456789', name: 'next_template' }.stringify_keys)
         expect(whatsapp_channel.reload.message_templates.last).to eq({ id: '123456789', name: 'last_template' }.stringify_keys)
+        expect(whatsapp_channel.reload.message_templates_last_updated).not_to eq(timstamp)
+      end
+
+      it 'updates message_templates_last_updated even when template request fails' do
+        stub_request(:get, 'https://graph.facebook.com/v14.0/123456789/message_templates?access_token=test_key')
+          .to_return(status: 401)
+
+        timstamp = whatsapp_channel.reload.message_templates_last_updated
+        subject.sync_templates
+        expect(whatsapp_channel.reload.message_templates_last_updated).not_to eq(timstamp)
       end
     end
   end