feat: Customisable Email Templates (#1095)

spec/factories/email_template.rb

@@ -0,0 +1,5 @@
+FactoryBot.define do
+  factory :email_template do
+    name { 'MyString' }
+  end
+end

spec/lib/email_templates/db_resolver_service_spec.rb

@@ -0,0 +1,80 @@
+require 'rails_helper'
+
+describe ::EmailTemplates::DbResolverService do
+  subject(:resolver) { described_class.using(EmailTemplate, {}) }
+
+  describe '#find_templates' do
+    context 'when template does not exist in db' do
+      it 'return empty array' do
+        expect(resolver.find_templates('test', '', false, [])).to eq([])
+      end
+    end
+
+    context 'when installation template exist in db' do
+      it 'return installation template' do
+        email_template = create(:email_template, name: 'test', body: 'test')
+        handler = ActionView::Template.registered_template_handler(:liquid)
+        template_details = {
+          format: Mime['html'].to_sym,
+          updated_at: email_template.updated_at,
+          virtual_path: 'test'
+        }
+
+        expect(
+          resolver.find_templates('test', '', false, []).first.to_json
+        ).to eq(
+          ActionView::Template.new(
+            email_template.body,
+            "DB Template - #{email_template.id}", handler, template_details
+          ).to_json
+        )
+      end
+    end
+
+    context 'when account template exists in db' do
+      let(:account) { create(:account) }
+      let(:installation_template) { create(:email_template, name: 'test', body: 'test') }
+      let(:account_template) { create(:email_template, name: 'test', body: 'test2', account: account) }
+
+      it 'return account template for current account' do
+        Current.account = account
+        handler = ActionView::Template.registered_template_handler(:liquid)
+        template_details = {
+          format: Mime['html'].to_sym,
+          updated_at: account_template.updated_at,
+          virtual_path: 'test'
+        }
+
+        expect(
+          resolver.find_templates('test', '', false, []).first.to_json
+        ).to eq(
+          ActionView::Template.new(
+            account_template.body,
+            "DB Template - #{account_template.id}", handler, template_details
+          ).to_json
+        )
+        Current.account = nil
+      end
+
+      it 'return installation template when  current account dont have template' do
+        Current.account = create(:account)
+        handler = ActionView::Template.registered_template_handler(:liquid)
+        template_details = {
+          format: Mime['html'].to_sym,
+          updated_at: installation_template.updated_at,
+          virtual_path: 'test'
+        }
+
+        expect(
+          resolver.find_templates('test', '', false, []).first.to_json
+        ).to eq(
+          ActionView::Template.new(
+            installation_template.body,
+            "DB Template - #{installation_template.id}", handler, template_details
+          ).to_json
+        )
+        Current.account = nil
+      end
+    end
+  end
+end

spec/mailers/confirmation_instructions_spec.rb

@@ -31,6 +31,7 @@ RSpec.describe 'Confirmation Instructions', type: :mailer do
         expect(mail.body).to match(
           "#{CGI.escapeHTML(inviter_val.name)}, with #{CGI.escapeHTML(inviter_val.account.name)}, has invited you to try out Chatwoot!"
         )
+        Current.account = nil
       end
     end
   end