Enable alert bot to use quick actions

Stop preventing `internal` users from using quick actions and just
prevent the support bot from using them.

app/policies/global_policy.rb

@@ -44,7 +44,6 @@ class GlobalPolicy < BasePolicy
     prevent :access_api
     prevent :access_git
     prevent :receive_notifications
-    prevent :use_quick_actions
   end
 
   rule { required_terms_not_accepted }.policy do

ee/app/policies/ee/base_policy.rb

@@ -11,6 +11,9 @@ module EE
       with_scope :user
       condition(:support_bot, score: 0) { @user&.support_bot? }
 
+      with_scope :user
+      condition(:alert_bot, score: 0) { @user&.alert_bot? }
+
       with_scope :global
       condition(:license_block) { License.block_changes? }
     end

ee/app/policies/ee/global_policy.rb

@@ -14,6 +14,8 @@ module EE
         enable :read_licenses
         enable :destroy_licenses
       end
+
+      rule { support_bot }.prevent :use_quick_actions
     end
   end
 end

ee/app/policies/ee/policy_actor.rb

@@ -9,5 +9,9 @@ module EE
     def support_bot?
       false
     end
+
+    def alert_bot?
+      false
+    end
   end
 end

ee/app/policies/ee/project_policy.rb

@@ -80,6 +80,8 @@ module EE
         prevent :read_project
       end
 
+      rule { alert_bot }.enable :reporter_access
+
       rule { license_block }.policy do
         prevent :create_issue
         prevent :create_merge_request_in

ee/changelogs/unreleased/11235-quick-actions-do-not-work-when-issues-are-opened-from-alerts.yml

+---
+title: Enable alert bot to use quick actions
+merge_request: 12127
+author:
+type: fixed

ee/spec/policies/project_policy_spec.rb

@@ -503,4 +503,10 @@ describe ProjectPolicy do
              projects: [clusterable])
     end
   end
+
+  context 'alert bot' do
+    let(:current_user) { User.alert_bot }
+
+    it { is_expected.to be_allowed(:reporter_access) }
+  end
 end

ee/spec/services/incident_management/create_issue_service_spec.rb

@@ -3,7 +3,7 @@
 require 'spec_helper'
 
 describe IncidentManagement::CreateIssueService do
-  set(:project) { create(:project, :repository, create_templates: :issue) }
+  let(:project) { create(:project, :repository) }
   let(:service) { described_class.new(project, nil, alert_payload) }
   let(:alert_title) { 'TITLE' }
   let(:alert_payload) do
@@ -17,7 +17,8 @@ describe IncidentManagement::CreateIssueService do
   subject { service.execute }
 
   context 'when create_issue enabled' do
-    let(:user) { create(:user) }
+    let(:issue) { subject[:issue] }
+    let(:summary_separator) { "---\n\n" }
 
     before do
       setting.update!(create_issue: true)
@@ -27,26 +28,68 @@ describe IncidentManagement::CreateIssueService do
       it 'creates an issue with alert summary only' do
         expect(subject).to include(status: :success)
 
-        issue = subject[:issue]
         expect(issue.author).to eq(User.alert_bot)
         expect(issue.title).to eq(alert_title)
         expect(issue.description).to include('Summary')
         expect(issue.description).to include(alert_title)
-        expect(issue.description).not_to include("---\n\n")
+        expect(issue.description).not_to include(summary_separator)
       end
     end
 
     context 'with issue_template_content' do
       before do
+        create_issue_template('bug', issue_template_content)
         setting.update!(issue_template_key: 'bug')
       end
 
-      it 'creates an issue appending issue template' do
-        expect(subject).to include(status: :success)
+      context 'plain content' do
+        let(:issue_template_content) { 'some content' }
+
+        it 'creates an issue appending issue template' do
+          expect(subject).to include(status: :success)
+
+          expect(issue.description).to include('Summary')
+          expect(issue.description).to include(alert_title)
+          expect(issue.description).to include(summary_separator)
+          expect(issue.description).to include(issue_template_content)
+        end
+      end
+
+      context 'quick actions' do
+        let(:user) { create(:user) }
+        let(:plain_text) { 'some content' }
+
+        let(:issue_template_content) do
+          <<~CONTENT
+            #{plain_text}
+            /due tomorrow
+            /assign @#{user.username}
+          CONTENT
+        end
+
+        before do
+          project.add_maintainer(user)
+        end
+
+        it 'creates an issue interpreting quick actions' do
+          expect(subject).to include(status: :success)
+
+          expect(issue.description).to include(plain_text)
+          expect(issue.due_date).to be_present
+          expect(issue.assignees).to eq([user])
+        end
+      end
+
+      private
 
-        issue = subject[:issue]
-        expect(issue.description).to include("---\n\n")
-        expect(issue.description).to include(setting.issue_template_content)
+      def create_issue_template(name, content)
+        project.repository.create_file(
+          project.creator,
+          ".gitlab/issue_templates/#{name}.md",
+          content,
+          message: 'message',
+          branch_name: 'master'
+        )
       end
     end