feat: Support for Whatsapp Cloud API (#4938)

Ability to configure Whatsapp Cloud API Inboxes

fixes: #4712

spec/services/whatsapp/providers/whatsapp_360_dialog_service_spec.rb

@@ -0,0 +1 @@
+## 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

@@ -0,0 +1,116 @@
+require 'rails_helper'
+
+describe Whatsapp::Providers::WhatsappCloudService do
+  subject(:service) { described_class.new(whatsapp_channel: whatsapp_channel) }
+
+  let(:whatsapp_channel) { create(:channel_whatsapp, provider: 'whatsapp_cloud', validate_provider_config: false, sync_templates: false) }
+  let(:message) { create(:message, message_type: :outgoing, content: 'test', inbox: whatsapp_channel.inbox) }
+  let(:response_headers) { { 'Content-Type' => 'application/json' } }
+  let(:whatsapp_response) { { messages: [{ id: 'message_id' }] } }
+
+  before do
+    stub_request(:get, 'https://graph.facebook.com/v14.0/123456789/message_templates?access_token=test_key')
+  end
+
+  describe '#send_message' do
+    context 'when called' do
+      it 'calls message endpoints for normal messages' do
+        stub_request(:post, 'https://graph.facebook.com/v13.0/123456789/messages')
+          .with(
+            body: {
+              messaging_product: 'whatsapp',
+              to: '+123456789',
+              text: { body: message.content },
+              type: 'text'
+            }.to_json
+          )
+          .to_return(status: 200, body: whatsapp_response.to_json, headers: response_headers)
+        expect(service.send_message('+123456789', message)).to eq 'message_id'
+      end
+
+      it 'calls message endpoints for attachment message messages' do
+        attachment = message.attachments.new(account_id: message.account_id, file_type: :image)
+        attachment.file.attach(io: File.open(Rails.root.join('spec/assets/avatar.png')), filename: 'avatar.png', content_type: 'image/png')
+
+        stub_request(:post, 'https://graph.facebook.com/v13.0/123456789/messages')
+          .with(
+            body: hash_including({
+                                   messaging_product: 'whatsapp',
+                                   to: '+123456789',
+                                   type: 'image'
+                                 })
+          )
+          .to_return(status: 200, body: whatsapp_response.to_json, headers: response_headers)
+        expect(service.send_message('+123456789', message)).to eq 'message_id'
+      end
+    end
+  end
+
+  describe '#send_template' do
+    let(:template_info) do
+      {
+        name: 'test_template',
+        namespace: 'test_namespace',
+        lang_code: 'en_US',
+        parameters: [{ type: 'text', text: 'test' }]
+      }
+    end
+
+    let(:template_body) do
+      {
+        messaging_product: 'whatsapp',
+        to: '+123456789',
+        template: {
+          name: template_info[:name],
+          language: {
+            policy: 'deterministic',
+            code: template_info[:lang_code]
+          },
+          components: [
+            { type: 'body',
+              parameters: template_info[:parameters] }
+          ]
+        },
+        type: 'template'
+      }
+    end
+
+    context 'when called' do
+      it 'calls message endpoints with template params for template messages' do
+        stub_request(:post, 'https://graph.facebook.com/v13.0/123456789/messages')
+          .with(
+            body: template_body.to_json
+          )
+          .to_return(status: 200, body: whatsapp_response.to_json, headers: response_headers)
+
+        expect(service.send_template('+123456789', template_info)).to eq('message_id')
+      end
+    end
+  end
+
+  describe '#sync_templates' do
+    context 'when called' do
+      it 'updated the message templates' do
+        stub_request(:get, 'https://graph.facebook.com/v14.0/123456789/message_templates?access_token=test_key')
+          .to_return(status: 200, headers: response_headers, body: { data: [{ id: '123456789', name: 'test_template' }] }.to_json)
+        expect(subject.sync_templates).to eq(true)
+        expect(whatsapp_channel.reload.message_templates).to eq([{ id: '123456789', name: 'test_template' }.stringify_keys])
+      end
+    end
+  end
+
+  describe '#validate_provider_config' do
+    context 'when called' do
+      it 'returns true if valid' do
+        stub_request(:get, 'https://graph.facebook.com/v14.0/123456789/message_templates?access_token=test_key')
+        expect(subject.validate_provider_config?).to eq(true)
+        expect(whatsapp_channel.errors.present?).to eq(false)
+      end
+
+      it 'returns false if invalid' do
+        stub_request(:get, 'https://graph.facebook.com/v14.0/123456789/message_templates?access_token=test_key').to_return(status: 401)
+        expect(subject.validate_provider_config?).to eq(false)
+      end
+    end
+  end
+end