1 files changed, 27 insertions, 0 deletions
diff --git a/app/helpers/integrations_helper.rb b/app/helpers/integrations_helper.rb
index 5471109e6d5..ffea23bf55d 100644
--- a/app/helpers/integrations_helper.rb
+++ b/app/helpers/integrations_helper.rb
@@ -136,6 +136,11 @@ module IntegrationsHelper
       form_data[:jira_issue_transition_id] = integration.jira_issue_transition_id
     end
 
+    if integration.is_a?(::Integrations::GitlabSlackApplication)
+      form_data[:upgrade_slack_url] = add_to_slack_link(project, slack_app_id)
+      form_data[:should_upgrade_slack] = integration.upgrade_needed?.to_s
+    end
+
     form_data
   end
 
@@ -212,6 +217,28 @@ module IntegrationsHelper
     event_i18n_map[event] || event.to_s.humanize
   end
 
+  def add_to_slack_link(project, slack_app_id)
+    query = {
+      scope: SlackIntegration::SCOPES.join(','),
+      client_id: slack_app_id,
+      redirect_uri: slack_auth_project_settings_slack_url(project),
+      state: form_authenticity_token
+    }
+
+    "#{::Projects::SlackApplicationInstallService::SLACK_AUTHORIZE_URL}?#{query.to_query}"
+  end
+
+  def gitlab_slack_application_data(projects)
+    {
+      projects: (projects || []).to_json(only: [:id, :name], methods: [:avatar_url, :name_with_namespace]),
+      sign_in_path: new_session_path(:user, redirect_to_referer: 'yes'),
+      is_signed_in: current_user.present?.to_s,
+      slack_link_path: slack_link_profile_slack_path,
+      gitlab_logo_path: image_path('illustrations/gitlab_logo.svg'),
+      slack_logo_path: image_path('illustrations/slack_logo.svg')
+    }
+  end
+
   extend self
 
   private